Exhibit 1.1


                                   4,687,500 Shares

                                  PATHNET, INC.

                        COMMON STOCK, PAR VALUE $.01 PER SHARE

                                UNDERWRITING AGREEMENT


_________, 1998




                                                                  _________,1998


Morgan Stanley & Co. Incorporated
Bear, Stearns & Co. Inc.
J.P. Morgan Securities Inc.
Lehman Brothers Inc.
c/o Morgan Stanley & Co. Incorporated
    1585 Broadway
    New York, New York  10036

Morgan Stanley & Co. International Limited
Bear, Stearns International Limited
J.P. Morgan Securities Ltd.
Lehman Brothers International (Europe)
c/o Morgan Stanley & Co. International Limited
    25 Cabot Square
    Canary Wharf
    London E14 4QA
    England

Dear Sirs and Mesdames:

          Pathnet Inc., a Delaware corporation (the "Company"), proposes to
issue and sell to the several Underwriters (as defined below) 4,687,500 shares
of its common stock, par value $.01 per share (the "Firm Shares").

          It is understood that, subject to the conditions hereinafter stated,
3,750,000 Firm Shares (the "U.S. Firm Shares") will be sold to the several U.S.
Underwriters named in Schedule I hereto (the "U.S. Underwriters") in connection
with the offering and sale of such U.S. Firm Shares in the United States and
Canada to United States and Canadian Persons (as such terms are defined in the
Agreement Between U.S. and International Underwriters of even date herewith),
and 937,500 Firm Shares (the "International Shares") will be sold to the several
International Underwriters named in Schedule II hereto (the "International
Underwriters") in connection with the offering and sale of such International
Shares outside the United States and Canada to persons other than United States
and Canadian Persons.  Morgan Stanley & Co. Incorporated, Bear, Stearns & Co.
Inc., J.P. Morgan Securities Inc. and Lehman Brothers Inc. shall act as
representatives (the "U.S. Representatives") of the several U.S. Underwriters,
and Morgan




Stanley & Co. International Limited, Bear, Stearns International Limited, J.P.
Morgan Securities Ltd. and Lehman Brothers International (Europe) shall act as
representatives (the "International Representatives") of the several
International Underwriters. The U.S. Underwriters and the International
Underwriters are hereinafter collectively referred to as the "Underwriters".

          The Company also proposes to issue and sell to the several U.S.
Underwriters not more than an additional 703,125 shares of its common stock, par
value $.01 per share (the "Additional Shares") if and to the extent that the
U.S. Representatives shall have determined to exercise, on behalf of the U.S.
Underwriters, the right to purchase such shares of common stock granted to the
U.S. Underwriters in Section 2 hereof. The Firm Shares and the Additional Shares
are hereinafter collectively referred to as the "Shares". The shares of common
stock, par value $.01 per share of the Company to be outstanding after giving
effect to the sales contemplated hereby are hereinafter referred to as the
"Common Stock".

          The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement relating to the Shares. The registration
statement contains two prospectuses to be used in connection with the offering
and sale of the Shares: the U.S. prospectus, to be used in connection with the
offering and sale of Shares in the United States and Canada to United States and
Canadian Persons, and the international prospectus, to be used in connection
with the offering and sale of Shares outside the United States and Canada to
persons other than United States and Canadian Persons. The international
prospectus is identical to the U.S. prospectus except for the outside front
cover page. The registration statement as amended at the time it becomes
effective, including the information (if any) deemed to be part of the
registration statement at the time of effectiveness pursuant to Rule 430A under
the Securities Act of 1933, as amended (the "Securities Act"), is hereinafter
referred to as the "Registration Statement"; the U.S. prospectus and the
international prospectus in the respective forms first used to confirm sales of
Shares are hereinafter collectively referred to as the "Prospectus". If the
Company has filed an abbreviated registration statement to register additional
shares of Common Stock pursuant to Rule 462(b) under the Securities Act (the
"Rule 462 Registration Statement"), then unless the context otherwise requires,
any reference herein to the term "Registration Statement" shall be deemed to
include such Rule 462 Registration Statement.

          As part of the offering contemplated by this Agreement, Morgan Stanley
& Co. Incorporated ("Morgan Stanley") has agreed to reserve out of the Shares
set forth opposite its name on Schedule II to this Agreement, up to 234,375
shares, for sale to the Company's employees, officers, and directors and other
parties associated with the Company (collectively, "Participants"), as set forth
in the Prospectus under the heading "Underwriters" (the "Directed Share
Program"). The Shares to be sold by Morgan Stanley pursuant to the Directed
Share Program (the "Directed Shares") will be sold by Morgan Stanley pursuant to
this Agreement at the public offering price. Any Directed Shares not orally
confirmed for purchase by any Participants by the end of the business day on
which this Agreement is executed will be offered to the public by Morgan Stanley
as set forth in the Prospectus.


                                       2


          1. Representations and Warranties. The Company represents and warrants
to each U.S. Underwriter as of the date hereof and as of the Closing Date
referred to in Section 4 hereof, and the Option Closing Date (if any) referred
to in Section 4 hereof, and agrees with each U.S. Underwriter, as follows:

               (a) The Company meets the requirements for use of Form S-1 under
     the Securities Act. Each of the Registration Statement and any Rule 462
     Registration Statement has become effective under the Securities Act and no
     stop order suspending the effectiveness of the Registration Statement or
     any Rule 462 Registration Statement has been issued under the Securities
     Act and no proceedings for that purpose have been instituted or are pending
     or, to the knowledge of the Company, are contemplated by the Commission,
     and any request on the part of the Commission for additional information
     has been complied with.

                 At the respective times the Registration Statement, any Rule 
     462 Registration Statement and any post-effective amendments thereto became
     effective and at the Closing Date (and, if any Additional Shares are
     purchased, at the Option Closing Date), the Registration Statement, the
     Rule 462 Registration Statement and any amendments and supplements thereto
     complied and will comply in all material respects with the requirements of
     the Securities Act and the applicable rules and regulations of the
     Commission thereunder and did not and will not contain an untrue statement
     of a material fact or omit to state a material fact required to be stated
     therein or necessary to make the statements therein not misleading. Neither
     the Prospectus nor any amendments or supplements thereto (including any
     prospectus wrapper), at the time the Prospectus or any amendments or
     supplements thereto were issued and at the Closing Date (and, if any
     Additional Shares are purchased, at the Option Closing Date), included or
     will include an untrue statement of a material fact or omitted or will omit
     to state a material fact necessary in order to make the statements therein,
     in the light of the circumstances under which they were made, not
     misleading. The representations and warranties in this subsection shall not
     apply to statements in or omissions from the Registration Statement or the
     Prospectus made in reliance upon and in conformity with information
     furnished to the Company in writing by any Underwriter through the U.S.
     Representatives expressly for use in the Registration Statement or the
     Prospectus.

               Each preliminary prospectus and the prospectuses filed as part of
     the Registration Statement as originally filed or as part of any amendment
     thereto, or filed pursuant to Rule 424 under the Securities Act, complied
     when so filed in all material respects with the Securities Act Regulations
     and each preliminary prospectus and the Prospectus delivered to the
     Underwriters for use in connection with this offering was identical to the
     electronically transmitted copies thereof filed with the Commission
     pursuant to EDGAR, except to the extent permitted by Regulation S-T under
     the Securities Act ("Regulation S-T").


                                       3


               (b) The accountants who certified the financial statements and
     supporting schedules included in the Registration Statement are independent
     public accountants with respect to the Company and its subsidiaries within
     the meaning of Regulation S-X under the Securities Act ("Regulation S-X").

               (c) The financial statements included in the Registration
     Statement and the Prospectus, together with the related schedules and
     notes, present fairly in all material respects the consolidated financial
     position of the Company and its consolidated subsidiaries at the dates
     indicated and the statement of operations, stockholders' equity and cash
     flows of the Company and its consolidated subsidiaries for the periods
     specified; said financial statements have been prepared in conformity with
     generally accepted accounting principles ("GAAP") applied on a consistent
     basis throughout the periods involved (except in the case of the unaudited
     financial statements for the absence of footnotes and subject to year-end
     adjustments, which are not expected to be material, taken as a whole). The
     supporting schedules, if any, included in the Registration Statement
     present fairly in all material respects in accordance with GAAP the
     information required to be stated therein. The selected financial data
     included in the Prospectus present fairly in all material respects the
     information shown therein and have been compiled on a basis consistent with
     that of the audited financial statements and unaudited financial
     statements, as the case may be, included in the Registration Statement.

               (d) Since the respective dates as of which information is given
     in the Registration Statement and the Prospectus, except as otherwise
     stated therein, (A) there has been no material adverse change in the
     condition, financial or otherwise, or in the earnings, business affairs or
     business prospects of the Company and its subsidiaries considered as one
     enterprise, whether or not arising in the ordinary course of business (a
     "Material Adverse Effect"), (B) there have been no transactions entered
     into by the Company or any of its subsidiaries, other than those in the
     ordinary course of business, which are material with respect to the Company
     and its subsidiaries considered as one enterprise, and (C) there has been
     no dividend or distribution of any kind declared, paid or made by the
     Company on any class of its capital stock.

               (e) The Company has been duly organized and is validly existing
     as a corporation in good standing under the laws of the State of Delaware
     and has corporate power and authority to own, lease and operate its
     properties and to conduct its business as described in the Prospectus and
     to enter into and perform its obligations under this Agreement; and the
     Company is duly qualified as a foreign corporation to transact business and
     is in good standing in each other jurisdiction in which such qualification
     is required, whether by reason of the ownership or leasing of property or
     the conduct of business, except where the failure so to qualify or to be in
     good standing would not result in a Material Adverse Effect.


                                       4


               (f) Each of Pathnet Finance I LLC and Pathnet/Idaho Power License
     LLC (each, a "Designated Subsidiary" and together the "Designated
     Subsidiaries") has been duly organized and is validly existing as limited
     liability company in good standing under the laws of the State of Delaware
     and has requisite limited liability company power and authority to own,
     lease and operate its properties and to conduct its business as described
     in the Prospectus. Each of the Designated Subsidiaries is not qualified as
     a limited liability company to transact business in any other jurisdiction.
     Except as otherwise disclosed in the Registration Statement, all of the
     issued and outstanding capital stock or members' interest of each of the
     Designated Subsidiaries has been duly authorized and validly issued, and is
     fully paid and non-assessable and, except as otherwise set forth in the
     Registration Statement and except for the security interest in the
     Company's interest in Pathnet/Idaho Power License LLC granted to
     Pathnet/Idaho Power Equipment LLC, is owned by the Company, directly or
     through subsidiaries, free and clear of any security interest, mortgage,
     pledge, lien, encumbrance, claim or equity; none of the outstanding shares
     of capital stock or members' interest of any Designated Subsidiary was
     issued in violation of any preemptive or similar rights of any
     securityholder or member (as applicable) of such Designated Subsidiary. The
     Company has no subsidiaries other than the Designated Subsidiaries and
     Pathnet/Idaho Power Equipment LLC.

               (g) The authorized, issued and outstanding capital stock of the
     Company is as set forth in the financial statements as of their date,
     including the schedules and notes, and included in the Prospectus in the
     column entitled "Actual" under the caption "Capitalization" and, as of the
     date hereof, there has been no material change in the authorized, issued
     and outstanding capital stock since the date of such financial statements
     other than issuances of shares of common stock upon the exercise of options
     disclosed to be outstanding in the Prospectus and as set forth in the
     Prospectus under the caption "Capitalization". The shares of issued and
     outstanding capital stock of the Company prior to the issuance of the
     Shares have been duly authorized and validly issued and are fully paid and
     non-assessable; none of the outstanding shares of capital stock of the
     Company was issued in violation of the preemptive or other similar rights
     of any member or securityholder of the Company.

               (h) This Agreement has been duly authorized, executed and
     delivered by the Company.

               (i) The Shares to be purchased by the U.S. Underwriters and the
     International Underwriters from the Company have been duly authorized for
     issuance and sale to the U.S. Underwriters and the International
     Underwriters and, when issued and delivered by the Company pursuant to this
     Agreement against payment of the consideration set forth herein, will be
     validly issued, fully paid and non-assessable; the Common Stock conforms to
     all statements relating thereto contained in the Prospectus and such
     description conforms to the rights set forth in the instruments defining
     the same; and the issuance of 


                                       5


     the Shares is not subject to the preemptive or other similar rights of any
     securityholder of the Company.

               (j) Neither the Company nor any Designated Subsidiary is in
     violation of its organizational documents (in the case of a limited
     liability company) or its certificate of incorporation or by-laws or in
     default in the performance or observance of any obligation, agreement,
     covenant or condition contained in any contract, indenture, mortgage, deed
     of trust, loan or credit agreement, note, lease or other agreement or
     instrument to which the Company or any Designated Subsidiary is a party or
     by which it or any of them may be bound, or to which any of the property or
     assets of the Company or any Designated Subsidiary is subject
     (collectively, "Agreements and Instruments") except for such defaults that
     would not result in a Material Adverse Effect; and the execution, delivery
     and performance of this Agreement and the consummation of the transactions
     contemplated in this Agreement and the Registration Statement (including
     the issuance and sale of the Shares and the use of the proceeds from the
     sale of the Shares as described in the Prospectus under the caption "Use of
     Proceeds") and compliance by the Company with its obligations under this
     Agreement have been duly authorized by all necessary corporate action on
     behalf of the Company and do not and will not, whether with or without the
     giving of notice or passage of time or both, conflict with or constitute a
     breach of, or default or a Repayment Event (as defined below) under, or
     result in the creation or imposition of any lien, charge or encumbrance
     upon any property or assets of the Company or any Designated Subsidiary
     pursuant to, the Agreements and Instruments (except for such conflicts,
     breaches or defaults or liens, charges or encumbrances that, singly or in
     the aggregate, would not result in a Material Adverse Effect), nor will
     such action result in any violations of (i) the provisions of the
     organizational documents (in the case of a limited liability company) or
     the certificate of incorporation or by-laws of the Company or any
     Designated Subsidiary or (ii) any applicable law, statute, rule, regulation
     (including, without limitation, the Communications Act of 1934, as amended,
     and the rules and regulations of the Federal Communications Commission (the
     "FCC") thereunder), judgment, order, writ or decree of any government,
     government instrumentality or court, domestic or foreign, having
     jurisdiction over the Company or any Designated Subsidiary or any of their
     assets, operations or properties, including, without limitation, the FCC.
     As used herein, a "Repayment Event" means any event or condition which
     gives the holder of any note, debenture or other evidence of indebtedness
     or any series of capital stock entitled by its terms to repayment,
     redemption or repurchase (or any person acting on such holder's behalf) the
     right to require the repurchase, redemption or repayment of all or a
     portion of such indebtedness or other interest by the Company or any
     Designated Subsidiary except for the conversion of all of the outstanding
     Series Preferred Stock of the Company into Common Stock upon the Closing of
     the Offering pursuant to the certificate of incorporation of the Company.

               (k) Except as disclosed in the Prospectus, no labor dispute with
     the employees of the Company or any Designated Subsidiary exists or, to the
     knowledge of 


                                       6


     the Company, is imminent, and the Company is not aware of any existing or
     imminent labor disturbance by the employees of any of its or any of its
     Designated Subsidiaries' principal suppliers, manufacturers, customers or
     contractors, which, in either case, may reasonably be expected to result in
     a Material Adverse Effect.

               (l) Except as disclosed in the Prospectus, there is no action,
     suit, proceeding, inquiry or investigation before or brought by any court
     or governmental agency or body, domestic or foreign, now pending, or, to
     the knowledge of the Company, threatened, against or affecting the Company
     or any Designated Subsidiary which might reasonably be expected to result
     in a Material Adverse Effect, which is required to be disclosed in the
     Registration Statement, or which might reasonably be expected to materially
     and adversely affect the properties or assets of the Company or any
     Designated Subsidiary or the consummation of the transactions contemplated
     by this Agreement or the performance by the Company of its obligations
     hereunder. The aggregate of all pending legal or governmental proceedings
     to which the Company or any Designated Subsidiary is a party or of which
     any of their respective property or assets is the subject which are not
     described in the Registration Statement, including ordinary routine
     litigation incidental to the business of the Company and its Designated
     Subsidiaries, could not reasonably be expected to result in a Material
     Adverse Effect.

               (m) There are no contracts or documents which are required to be
     described in the Registration Statement or the Prospectus or to be filed as
     exhibits thereto which have not been so described or filed as required.

               (n) The Company and its Designated Subsidiaries own or otherwise
     have the right to use, or can acquire on reasonable terms, adequate
     patents, patent rights, licenses, inventions, copyrights, know-how
     (including trade secrets and other unpatented and/or unpatentable
     proprietary or confidential information, systems or procedures),
     trademarks, service marks, trade names or other intellectual property
     (collectively, "Intellectual Property") necessary to carry on the business
     now operated by them as described in the Registration Statement, and
     neither the Company nor any Designated Subsidiary has received any written
     notice or is otherwise aware of any infringement of or conflict with
     asserted rights of others with respect to any Intellectual Property or of
     any facts or circumstances which would render any Intellectual Property
     invalid or inadequate to protect the interest of the Company or any
     Designated Subsidiary therein, and which infringement or conflict or
     invalidity or inadequacy, singly or in the aggregate, would reasonably be
     expected to result in a Material Adverse Effect.

               (o) Except as described in the Prospectus, no filing with, or
     authorization, approval, consent, license, order, registration,
     qualification or decree of, any court or governmental authority or agency
     is necessary or required (x) for the lawful operation of the business of
     the Company and its Designated Subsidiaries as described in the
     Registration Statement under the caption "Business" in the manner and to
     the full 


                                       7


     extent now operated or proposed to be operated as described in the
     Registration Statement, except for such filings, authorizations, approvals,
     consents, licenses, orders, registrations, qualifications or decrees that
     would not, if not so filed, made or otherwise obtained, singly or in the
     aggregate, result in a Material Adverse Effect, or (y) for the performance
     by the Company of its obligations under this Agreement, in connection with
     the offering, issuance or sale of the Shares hereunder or the consummation
     of the transactions contemplated by this Agreement, except (i) such as have
     been already obtained under the Securities Act or the applicable rules and
     regulations of the Commission thereunder or as may be required under
     foreign or state securities or blue sky laws and (ii) such as have been
     obtained under the laws and regulations of jurisdictions outside the United
     States in which the Directed Shares are offered. To the knowledge of the
     Company after due inquiry, no event has occurred that permits (nor has an
     event occurred, which, with notice or lapse of time, or both, would permit)
     the revocation or termination of any authorization, approval, consent,
     license, order, registration, qualification or decree described under
     clause (x) of this paragraph or that might result in any other material
     impairment of the rights of the Company therein or thereunder.

               (p) Except as described in the Registration Statement, the
     Company and its Designated Subsidiaries possess such permits, licenses,
     approvals, consents and other authorizations (collectively, including,
     without limitation, all permits required for the operation of the business
     of the Company and its Designated Subsidiaries by the FCC and each state
     and local authority that regulates the activities of the Company, the
     "Governmental Licenses") issued by the appropriate federal, state, local or
     foreign regulatory agencies or bodies necessary to conduct the business now
     operated by them, except where the failure to obtain such permits,
     licenses, approvals, consents or other authorizations would not, singly or
     in the aggregate, result in a Material Adverse Effect; the Company and its
     Designated Subsidiaries are in compliance with the terms and conditions of
     all such Governmental Licenses, except where the failure so to comply would
     not, singly or in the aggregate, have a Material Adverse Effect; all of the
     Governmental Licenses are valid and in full force and effect, except when
     the invalidity of such Governmental Licenses or the failure of such
     Governmental Licenses to be in full force and effect would not have a
     Material Adverse Effect; and neither the Company nor any of its Designated
     Subsidiary has received any notice of proceedings relating to the
     revocation or modification of any such Governmental Licenses which, singly
     or in the aggregate, if the subject of an unfavorable decision, ruling or
     finding, would result in a Material Adverse Effect. To the knowledge of the
     Company, except as described in the Registration Statement, there exists no
     reason or cause that could justify the variation, suspension, cancellation
     or termination of any such Governmental Licenses held by the Company or its
     Designated Subsidiaries with respect to the construction or operation of
     their respective businesses, which variation, suspension, cancellation or
     termination could reasonably be expected to result in a Material Adverse
     Effect.


                                       8


               (q) The Company and its Designated Subsidiaries own no real
     property. The Company and its Designated Subsidiaries have good title to
     all other material properties owned by them, in each case, free and clear
     of all mortgages, pledges, liens, security interests, claims, restrictions
     or encumbrances of any kind except such as (a) are described in the
     Prospectus or (b) do not, singly or in the aggregate, materially affect the
     value of such property and do not materially interfere with the use made
     and proposed to be made of such property by the Company or any of its
     Designated Subsidiary; and all of the leases and subleases material to the
     business of the Company and its subsidiaries, considered as one enterprise,
     and under which the Company or any of its Designated Subsidiaries holds
     properties described in the Prospectus, are in full force and effect, and
     neither the Company nor any of its Designated Subsidiaries has any notice
     of any material claim of any sort that has been asserted by anyone adverse
     to the rights of the Company or any of its Designated Subsidiaries under
     any of the leases or subleases mentioned above, or affecting or questioning
     the rights of the Company or any Designated Subsidiary thereof to the
     continued possession of the leased or subleased premises under any such
     lease or sublease.

               (r) All United States federal income tax returns of the Company
     and its Designated Subsidiaries required by law to be filed have been filed
     and all taxes shown by such returns or otherwise assessed, which are due
     and payable, have been paid, except assessments against which appeals have
     been or will be promptly taken in good faith and as to which adequate
     reserves have been provided. The Company and its Designated Subsidiaries
     have filed all other tax returns that are required to have been filed by
     them pursuant to applicable foreign, state, local or other law except
     insofar as the failure to file such returns would not result in a Material
     Adverse Effect, and has paid all taxes due pursuant to such returns or
     pursuant to any assessment received by the Company and its Designated
     Subsidiaries, except for such taxes, if any, as are being contested in good
     faith and for which adequate reserves have been provided. The charges,
     accruals and reserves on the books of the Company in respect of any income
     and corporation tax liability for any years not finally determined are
     adequate to meet any assessments or re-assessments for additional income
     tax for any years not finally determined, except to the extent of any
     inadequacy that would not result in a Material Adverse Effect.

               (s) The Company and its Designated Subsidiaries maintain a system
     of internal accounting controls sufficient to provide reasonable assurances
     that (A) transactions are executed in accordance with management's general
     or specific authorization, (B) transactions are recorded as necessary to
     permit preparation of financial statements in conformity with GAAP and to
     maintain accountability for assets, (C) access to assets is permitted only
     in accordance with management's general or specific authorization and (D)
     the recorded accountability for assets is compared with the existing assets
     at reasonable intervals and appropriate action is taken with respect to any
     differences.


                                       9


               (t) The Company and its Designated Subsidiaries carry or are
     entitled to the benefits of insurance, with financially sound and reputable
     insurers, in such amounts and covering such risks as is generally
     maintained by companies of established repute engaged in the same or
     similar business, and all such insurance is in full force and effect.

               (u) The Company is not, and upon the issuance and sale of the
     Shares as herein contemplated, the application of the net proceeds
     therefrom as described in the Prospectus and the conduct of the Company's
     business in the manner described in the Registration Statement will not be
     required to register as an "investment company" as such term is defined in
     the Investment Company Act of 1940, as amended (the "1940 Act").

               (v) Except as described in the Prospectus and except for such
     matters as would not, singly or in the aggregate, result in a Material
     Adverse Effect, (i) neither the Company nor any of its Designated
     Subsidiaries is in violation of any federal, state, local or foreign
     statute, law, rule, regulation, ordinance, code, policy or rule of common
     law or any judicial or administrative interpretation thereof, including any
     judicial or administrative order, consent, decree or judgment, relating to
     pollution or protection of human health, the environment (including,
     without limitation, ambient air, surface water, groundwater, land surface
     or subsurface strata) or wildlife, including, without limitation, laws and
     regulations relating to the release or threatened release of chemicals,
     pollutants, contaminants, wastes, toxic substances, hazardous substances,
     petroleum or petroleum products (collectively, "Hazardous Materials") or to
     the manufacture, processing, distribution, use, treatment, storage,
     disposal, transport or handling of Hazardous Materials (collectively,
     "Environmental Laws"), (ii) the Company and its Designated Subsidiaries
     have all permits, authorizations and approvals required under any
     applicable Environmental Laws and are each in compliance with their
     requirements, (iii) there are no pending or, to the knowledge of the
     Company or the Designated Subsidiaries, threatened administrative,
     regulatory or judicial actions, suits, demands, demand letters, claims,
     liens, notices of noncompliance or violation, investigations or proceedings
     relating to any Environmental Law against the Company or any of its
     Designated Subsidiaries and (iv) to the knowledge of the Company or the
     Designated Subsidiaries, there are no events or circumstances that might
     reasonably be expected to form the basis of an order for clean-up or
     remediation, or an action, suit or proceeding by any private party or
     governmental body or agency, against or affecting the Company or any of its
     Designated Subsidiaries relating to Hazardous Materials or Environmental
     Laws.

               (w) Except as disclosed in the Registration Statement, there are
     no persons with registration rights or other similar rights to have any
     securities registered pursuant to the Registration Statement or otherwise
     registered by the Company under the Securities Act.

               (x) The Company has not offered, or caused the Underwriters to
     offer, Shares to any person pursuant to the Directed Share Program with the
     specific intent to 


                                       10


     unlawfully influence (i) a customer or supplier of the Company to alter the
     customer's or supplier's level or type of business with the Company, or
     (ii) a trade journalist or publication to write or publish favorable
     information about the Company or its products.

          2. Agreements to Sell and Purchase. The Company hereby agrees to sell
to the several Underwriters, and each Underwriter, upon the basis of the
representations and warranties herein contained, but subject to the conditions
hereinafter stated, agrees, severally and not jointly, to purchase from the
Company the respective numbers of Firm Shares set forth in Schedules I and II
hereto opposite its names at U.S.$[_____] a share ("Purchase Price").

          On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, the Company agrees to sell
to the U.S. Underwriters the Additional Shares, and the U.S. Underwriters shall
have a one-time right to purchase, severally and not jointly, up to 703,125
Additional Shares at the Purchase Price. If the U.S. Representatives, on behalf
of the U.S. Underwriters, elect to exercise such option, the U.S.
Representatives shall so notify the Company in writing not later than 30 days
after the date of this Agreement, which notice shall specify the number of
Additional Shares to be purchased by the U.S. Underwriters and the date on which
such shares are to be purchased or which date shall not be less than the second
business day following the date such notice is given. Such date may be the same
as the Closing Date (as defined below) but not earlier than the Closing Date nor
later than ten business days after the date of such notice. Additional Shares
may be purchased as provided in Section 4 hereof solely for the purpose of
covering overallotments made in connection with the offering of the Firm Shares.
If any Additional Shares are to be purchased, each U.S. Underwriter agrees,
severally and not jointly, to purchase the number of Additional Shares (subject
to such adjustments to eliminate fractional shares as the U.S. Representatives
may determine) that bears the same proportion to the total number of Additional
Shares to be purchased as the number of U.S. Firm Shares set forth in Schedule I
hereto opposite the name of such U.S. Underwriter bears to the total number of
U.S. Firm Shares.

          The Company hereby agrees that, without the prior written consent of
Morgan Stanley & Co. Incorporated on behalf of the Underwriters, it will not,
during the period ending 180 days after the date of the Prospectus, (i) offer,
pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock or (ii) enter into any swap or other arrangement
that transfers to another, in whole or in part, any of the economic consequences
of ownership of the Common Stock, whether any such transaction described in
clause (i) or (ii) above is to be settled by delivery of Common Stock or such
other securities, in cash or otherwise. The foregoing sentence shall not apply
to (A) the Shares to be sold hereunder or (B) the grant of options pursuant to
and on the same or similar terms as set forth in the employee benefit plans
existing on the date hereof and the issuance by the Company of shares of Common
Stock upon the exercise of an option or warrant or the conversion


                                       11


of a security outstanding on the date hereof or upon the exercise of options
granted after the date hereof under employee benefit plans existing on the date
hereof, as described in the Prospectus.

          3. Terms of Public Offering. The Company is advised by you that the
Underwriters propose to make a public offering of their respective portions of
the Shares as soon after the Registration Statement and this Agreement have
become effective as in your judgment is advisable. The Company is further
advised by you that the Shares are to be offered to the public initially at
U.S.$[_____] a share (the "Public Offering Price") and to certain dealers
selected by you at a price that represents a concession not in excess of
U.S.$[____] a share under the Public Offering Price, and that any Underwriter
may allow, and such dealers may reallow, a concession, not in excess of
U.S.$[____] a share, to any Underwriter or to certain other dealers.

          4. Payment and Delivery. Payment for the Firm Shares shall be made to
the Company in Federal or other funds immediately available in New York City
against delivery of such Firm Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on _______, 1998, or at such
other time on the same or such other date, not later than _________, 1998, as
shall be designated in writing by you. The time and date of such payment are
hereinafter referred to as the "Closing Date".

          Payment for any Additional Shares shall be made to the Company in
Federal or other funds immediately available in New York City against delivery
of such Additional Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on the date specified in the
notice described in Section 2 or at such other time on the same or on such other
date, in any event not later than _______, 1998, as shall be designated in
writing by the U.S. Representatives. The time and date of such payment are
hereinafter referred to as the "Option Closing Date".

          Certificates for the Firm Shares and Additional Shares shall be in
definitive form and registered in such names and in such denominations as you
shall request in writing not later than one full business day prior to the
Closing Date or the Option Closing Date, as the case may be. The certificates
evidencing the Firm Shares and Additional Shares shall be delivered to you on
the Closing Date or the Option Closing Date, as the case may be, for the
respective accounts of the several Underwriters, with any transfer taxes payable
in connection with the transfer of the Shares to the Underwriters duly paid,
against payment of the Purchase Price therefor.

          5. Conditions to the Company's and the Underwriters' Obligations. The
obligations of the Company to sell the Shares to the Underwriters and the
several obligations of the Underwriters to purchase and pay for the Shares on
the Closing Date are subject to the condition that the Registration Statement
shall have become effective not later than the date hereof.

          The several obligations of the Underwriters are subject to the
following further conditions:


                                       12


               (a) Subsequent to the execution and delivery of this Agreement
     and prior to the Closing Date:

                    (i) there shall not have occurred any downgrading, nor shall
          any notice have been given of any intended or potential downgrading or
          of any review for a possible change that does not indicate the
          direction of the possible change, in the rating accorded any of the
          Company's securities by any "nationally recognized statistical rating
          organization," as such term is defined for purposes of Rule 436(g)(2)
          under the Securities Act; and

                    (ii) there shall not have occurred any change, or any
          development involving a prospective change, in the condition,
          financial or otherwise, or in the earnings, business or operations of
          the Company and its subsidiaries, taken as a whole, from that set
          forth in the Prospectus (exclusive of any amendments or supplements
          thereto subsequent to the date of this Agreement) that, in your
          judgment, is material and adverse and that makes it, in your judgment,
          impracticable to market the Shares on the terms and in the manner
          contemplated in the Prospectus.

               (b) The Underwriters shall have received on the Closing Date a
     certificate, dated the Closing Date and signed by an executive officer of
     the Company, to the effect set forth in Section 5(a)(i) above and to the
     effect that the representations and warranties of the Company contained in
     this Agreement are true and correct as of the Closing Date and that the
     Company has complied with all of the agreements and satisfied all of the
     conditions on its part to be performed or satisfied hereunder on or before
     the Closing Date.

               The officer signing and delivering such certificate may rely upon
     the best of his or her knowledge as to proceedings threatened.

               (c) The Underwriters shall have received on the Closing Date an
     opinion of Paul, Weiss, Rifkind, Wharton & Garrison, special counsel for
     the Company, dated the Closing Date, substantially to the effect that:

                    (i) the Company is a corporation duly incorporated and
          validly existing as a corporation in good standing under the laws of
          the State of Delaware;

                    (ii) the Company has corporate power and authority to own,
          lease and operate its properties and to conduct its business as
          described in the Prospectus and to enter into and perform its
          obligations under this Agreement;

                    (iii) based solely on certificates of public officials in
          the respective jurisdictions delivered to the Underwriters by the
          Company, the 


                                       13


          Company is duly qualified to do business in each of the jurisdictions
          listed on Schedule III hereto;

                    (iv) the authorized, issued and outstanding capital stock of
          the Company is as set forth in the Prospectus under the caption
          "Capitalization" (except for subsequent issuances, if any, pursuant to
          this Agreement or pursuant to reservations, agreements or employee
          benefit plans referred to in the Prospectus or pursuant to the
          exercise or conversion of convertible securities or options referred
          to in the Prospectus); the shares of issued and outstanding capital
          stock of the Company have been duly authorized and validly issued and
          are fully paid and non-assessable; and none of the outstanding shares
          of capital stock of the Company was issued in violation of the
          preemptive or other similar rights of any securityholder of the
          Company pursuant to the Company's Certificate of Incorporation or
          bylaws, each as in effect on the date hereof, or in any agreement or
          other instrument filed as an exhibit to the Registration Statement;

                    (v) the Shares to be purchased by the U.S. Underwriters and
          the International Underwriters from the Company have been duly
          authorized for issuance and sale to the Underwriters pursuant to this
          Agreement and, when issued and delivered by the Company pursuant to
          this Agreement against payment of the consideration set forth in this
          Agreement, will be validly issued and fully paid and non-assessable;

                    (vi) the issuance of the Shares is not subject to the
          preemptive or other similar rights of any securityholder of the
          Company pursuant to the Company's Certificate of Incorporation or
          bylaws, each as in effect on the date hereof, or in any agreement or
          other instrument filed as an exhibit to the Registration Statement;

                    (vii) each Designated Subsidiary (as listed in Schedule I to
          counsel's opinion) has been duly formed and is validly existing as a
          limited liability company in good standing under the laws of the
          jurisdiction of its formation, has limited liability company power and
          authority to own, lease and operate its properties and to conduct its
          business as described in the Prospectus; except as otherwise disclosed
          in the Registration Statement, all of the issued and outstanding
          membership interest in each Designated Subsidiary has been duly
          authorized and validly issued, is fully paid and non-assessable and is
          owned of record by the Company;

                    (viii) this Agreement has been duly authorized, executed and
          delivered by the Company;


                                       14


                    (ix) Each of the Registration Statement, including any Rule
          462 Registration Statement, the Prospectus and each amendment or
          supplement to the Registration Statement and the Prospectus as of
          their respective effective or issue dates (other than the financial
          statements and supporting schedules and other financial and
          statistical data included therein or omitted therefrom, as to which
          such counsel need express no opinion) appears on its face to be
          appropriately responsive in all material respects to the requirements
          of the Securities Act and the rules and regulations of the Commission
          thereunder. For the purpose of this opinion, such counsel may assume
          that the statements made in such documents are complete and correct;

                    (x) to such counsel's knowledge, there is no pending or
          threatened legal proceeding, including by the FCC, against the Company
          or any subsidiary, or to which the property of the Company or any
          subsidiary thereof is subject, before or brought by any court or
          governmental agency or body, which might reasonably be expected to
          result in a Material Adverse Effect, or would have a material adverse
          effect on the consummation of the transactions contemplated in this
          Agreement or the performance by the Company of its obligations
          hereunder or the transactions relating to the Offering contemplated by
          the Prospectus;

                    (xi) the statements in the Prospectus under the caption
          "Certain United States Federal Tax Consequences to Non-United States
          Holders of Common Stock," and in the Registration Statement under
          Items 14 and 15, to the extent that such statements constitute
          summaries of the legal matters, documents or proceedings referred to
          therein are accurate in all material respects and fairly summarize the
          matters described therein in all material respects;

                    (xii) the statements in the Prospectus under the captions
          "Risk Factors -- Regulation," "Business -- Regulation" (except for any
          and all statements regarding management's awareness of or belief or
          intention regarding certain matters, as to which no opinion need be
          expressed), insofar as such statements constitute a summary of the
          legal matters, documents, or proceedings related to the Communications
          Act of 1934, as amended, and the rules, regulations and published
          policies of the FCC ("Communications Law") referred to therein, are
          accurate in all material respects and fairly summarize the matters
          referred to therein;

                    (xiii) all descriptions in the Registration Statement of
          contracts and other documents to which the Company or any of its
          subsidiaries is a party are accurate in all material respects; to such
          counsel's knowledge, there are no franchises, contracts, indentures,
          mortgages, loan agreements, notes, leases or other instruments or any
          statutes or regulations that would be required to be described in the
          Registration Statement that are not described or referred to in the


                                       15


          Registration Statement or to be filed as exhibits thereto other than
          those described or referred to therein or filed as exhibits thereto;

                    (xiv) to such counsel's knowledge, (i) neither the Company
          nor any of its Designated Subsidiaries is in violation of its Charter
          Documents or equivalent organizational documents and (ii) no default
          by the Company or any Designated Subsidiary exists in the due
          performance or observance of any material obligation, agreement,
          covenant or condition contained in any contract, indenture, mortgage,
          loan agreement, note, lease or other agreement or instrument that is
          described or referred to in the Registration Statement or the
          Prospectus or filed or incorporated by reference as an exhibit to the
          Registration Statement;

                    (xv) no filing with, or authorization, approval, consent,
          license, order, registration, qualification or decree of, any
          Governmental Authority or agency or under the Delaware General 
          Corporation Law (the "DGCL") (other than under the Securities Act 
          and the applicable rules and regulations of the Commission thereunder,
          which have been obtained, or as may be required under the securities 
          or blue sky laws of the various states or foreign securities laws as 
          to which such counsel need express no opinion) is required for the 
          due authorization, execution, delivery of this Agreement and the 
          performance by the Company of its obligations under this Agreement. 
          For the purposes of this opinion, the term "Governmental Authorities"
          means any executive, legislative, judicial, administrative or 
          regulatory body of the United States of America or the State of New 
          York;

                    (xvi) the execution, delivery and performance of this
          Agreement, the consummation of the transactions contemplated in this
          Agreement and compliance by the Company with its obligations under
          this Agreement do not and will not, whether with or without the giving
          of notice or lapse of time or both, (a) conflict with or constitute a
          breach of, or default or Repayment Event (as defined in Section
          1(a)(x) of the Purchase Agreement) under, or result in the creation or
          imposition of any lien, charge or encumbrance upon any property or
          assets of the Company or any subsidiary thereof pursuant to, any
          contract, other agreement or instrument included as an exhibit to the
          Registration Statement, except for such conflicts, breaches or
          defaults or liens, charges or encumbrances that would not have a
          Material Adverse Effect, or (b) result in any violation of the
          provisions of the charter or by-laws (or comparable organizational
          documents) of the Company and its subsidiaries, or any Applicable Law,
          including Communications Law, or any judgment, order, writ or decree
          known to such counsel, except where the violation would not have a
          Material Adverse Effect. Except as described in the Prospectus, no
          consent, approval, authorization, order or qualification with the FCC
          is required for the performance by the Company of its obligations
          under this Agreement. The term "Applicable Law" means the DGCL and 
          those laws, rules and regulations of the United States of 


                                       16


          America, in each case which in our experience are normally applicable
          to the transactions of the type contemplated by this Agreement.;

                    (xvii) to such counsel's knowledge, except as set forth in
          the Registration Statement, there are no persons with registration
          rights or other similar rights to have any securities registered
          pursuant to the Registration Statement or otherwise registered by the
          Company under the Securities Act;

                    (xviii) to such counsel's knowledge, based on certification
          to such counsel from the Company, the Company does not currently have
          any licenses, certificates, orders, permits, authorizations, consents
          or approvals from the FCC (collectively, the "FCC Licenses"), except
          that the Company and an incumbent operator with whom the Company has a
          strategic relationship hold certain FCC Licenses granted conditionally
          on filing pursuant to 47 C.F.R. Section 101.31(e) (the "Conditional
          Licenses"). These Conditional Licenses are the only FCC Licenses
          necessary to allow the Company to operate its current business as
          described in the Registration Statement on the date hereof (as such
          counsel understands the Company's current business, based on a
          certification to such counsel from the Company). As described in the
          Registration Statement, the Company will require additional FCC
          Licenses to carry out its business as planned. In connection with the
          applications for and the maintenance of its FCC Licenses, the Company
          has made and will be required to make certain reports and/or filings
          with, and to pay certain fees to, the FCC.

                    (xix) the Company is not required to be registered as an
          investment company" under the 1940 Act, as amended, and the rules and
          regulations promulgated thereunder;

               Such counsel will confirm, based on oral advice from the
     Commission, that the Registration Statement, including any Rule 462
     Registration Statement, has been declared effective under the Securities
     Act; such counsel shall further confirm that any required filing of the
     Prospectus pursuant to Rule 424 has been made in the manner and within the
     time period required by Rule 424; and that, to such counsel's knowledge, no
     stop order suspending the effectiveness of the Registration Statement or
     any Rule 462 Registration Statement has been issued under the Securities
     Act and no proceedings for that purpose have been instituted or are pending
     or threatened by the Commission.

               Such counsel shall also state that they have participated in the
     preparation of the Registration Statement and, although they have not
     undertaken to investigate or verify independently, and do not assume
     responsibility for, the accuracy or completeness of the statements
     contained in either of them (other than as explicitly stated in paragraph
     (xi) and (xii) above), based upon such participation (and relying as to
     factual matters in determining materiality to the extent we deem reasonable
     on officers, employees and other 


                                       17


     representatives of the Company), nothing has come to such counsel's
     attention that would lead them to believe that the Registration Statement
     or any amendment or supplement thereto (except for financial statements
     and schedules and other financial and statistical data included or
     incorporated by reference therein or omitted therefrom, as to which they
     express no belief), at the time such Registration Statement or any such
     amendment became effective, contained an untrue statement of a material
     fact or omitted to state a material fact required to be stated therein or
     necessary to make the statements therein not misleading or that the
     Prospectus or any amendment or supplement thereto (except for financial
     statements and schedules and other financial and statistical data included
     therein or omitted therefrom, as to which they express no belief), at the
     time the Prospectus was issued, at the time any such amended or
     supplemented prospectus was issued or at the Closing Time, contained or
     contains an untrue statement of a material fact or omitted or omits to
     state a material fact necessary in order to make the statements therein, in
     the light of the circumstances under which they were made, not misleading.

               The opinion of Paul, Weiss, Rifkind, Wharton & Garrison described
     in Section 5(c) above shall be rendered to the Underwriters at the request
     of the Company and shall so state therein.

               In rendering the foregoing opinions, such counsel may (A) rely as
     to factual matters, to the extent such counsel deems, proper upon the
     representations and warranties of the Company made in this Agreement and
     upon certificates of public officials and officers of the Company, (B)
     assume without independent investigation (i) that each of the parties to
     this Agreement (other than the Company) has complied with all of its
     obligations and agreements arising hereunder, (ii) the genuineness of all
     signatures, (iii) the legal capacity of all individuals who have executed
     any of the documents reviewed by such counsel, (iv) the authenticity of all
     documents submitted to such counsel as originals, (v) the conformity to the
     originals of all documents submitted to such counsel as certified,
     photostatic, reproduced or conformed copies of valid existing agreements or
     other documents, (vi) the authenticity of all such latter documents and
     (vii) that the statements regarding matters of fact in the certificates,
     records, agreements, instruments and documents that such counsel have
     examined are accurate and complete and (C) indicate that whenever such
     counsel's opinion with respect to the existence or absence of facts is
     based upon such counsel's knowledge, such counsel's opinion is based solely
     on the actual knowledge of the attorneys in such counsel's firm who are
     representing the Company in connection with the transactions contemplated
     by this Agreement or who are otherwise responsible for the representation
     of the Company and without any independent verification.

               (d) The Underwriters shall have received on the Closing Date an
     opinion of Shearman & Sterling, counsel for the Underwriters, dated the
     Closing Date, in form and substance satisfactory to the Underwriters.


                                       18


               (e) The Underwriters shall have received, on each of the date
     hereof and the Closing Date, a letter dated the date hereof or the Closing
     Date, as the case may be, in form and substance satisfactory to the
     Underwriters, from Pricewaterhouse Coopers LLP, independent public
     accountants, containing statements and information of the type ordinarily
     included in accountants' "comfort letters" to underwriters with respect to
     the financial statements and certain financial information contained in the
     Registration Statement and the Prospectus; provided that the letter
     delivered on the Closing Date shall use a "cut-off date" not earlier than
     the date hereof.

               (f) The "lockup" agreements, each substantially in the form of
     Exhibit A hereto, between you and certain shareholders, officers and
     directors of the Company relating to sales and certain other dispositions
     of shares of Common Stock or certain other securities, delivered to you on
     or before the date hereof, shall be in full force and effect on the Closing
     Date.

               (g) The Common Stock shall have been approved for trading on the
     Nasdaq National Market, subject only to official notice of issuance.

               (h) You shall have received such other documents and certificates
     as are reasonably requested by you or your counsel.

          The several obligations of the U.S. Underwriters to purchase
Additional Shares hereunder are subject to the delivery to the U.S.
Representatives on the Option Closing Date of such documents as they may
reasonably request with respect to the good standing of the Company, the due
authorization and issuance of the Additional Shares and other matters related to
the issuance of the Additional Shares.

          6. Covenants of the Company. In further consideration of the
agreements of the Underwriters herein contained, the Company covenants with each
Underwriter as follows:

               (a) To furnish to you, without charge, five signed copies of the
     Registration Statement (including exhibits thereto) and for delivery to
     each other Underwriter a conformed copy of the Registration Statement
     (without exhibits thereto) and to furnish to you in New York City, without
     charge, prior to 3:00 p.m. New York City time on the business day next
     succeeding the date of this Agreement and during the period mentioned in
     Section 6(c) below, as many copies of the Prospectus and any supplements
     and amendments thereto or to the Registration Statement as you may
     reasonably request.

               (b) Before amending or supplementing the Registration Statement
     or the Prospectus, to furnish to you a copy of each such proposed amendment
     or supplement and not to file any such proposed amendment or supplement to
     which you reasonably object in a timely manner, and to file with the
     Commission within the applicable period specified 


                                       19


     in Rule 424(b) under the Securities Act any prospectus required to be filed
     pursuant to such Rule.

               (c) If, during such period after the first date of the public
     offering of the Shares as in the opinion of counsel for the Underwriters
     the Prospectus is required by law to be delivered in connection with sales
     by an Underwriter or dealer, any event shall occur or condition exist as a
     result of which it is necessary to amend or supplement the Prospectus in
     order to make the statements therein, in the light of the circumstances
     when the Prospectus is delivered to a purchaser, not misleading, or if, in
     the opinion of counsel for the Underwriters, it is necessary to amend or
     supplement the Prospectus to comply with applicable law, forthwith to
     prepare, file with the Commission and furnish, at its own expense, to the
     Underwriters and to the dealers (whose names and addresses you will furnish
     to the Company) to which Shares may have been sold by you on behalf of the
     Underwriters and to any other dealers upon request, either amendments or
     supplements to the Prospectus so that the statements in the Prospectus as
     so amended or supplemented will not, in the light of the circumstances when
     the Prospectus is delivered to a purchaser, be misleading or so that the
     Prospectus, as amended or supplemented, will comply with law.

               (d) To endeavor to qualify the Shares for offer and sale under
     the securities or Blue Sky laws of such jurisdictions as you shall
     reasonably request provided, however, that no qualification shall be
     required in any jurisdiction where, as a result thereof, the Company would
     be subject to service of process or to taxation as a foreign corporation
     doing business in such jurisdiction.

               (e) To make generally available to the Company's security holders
     and to you as soon as practicable an earning statement covering the
     twelve-month period ending [________], 1999 that satisfies the provisions
     of Section 11(a) of the Securities Act and the rules and regulations of the
     Commission thereunder.

               (f) Whether or not the transactions contemplated in this
     Agreement are consummated or this Agreement is terminated, to pay or cause
     to be paid all expenses incident to the performance of its obligations
     under this Agreement, including: (i) the fees, disbursements and expenses
     of the Company's counsel and the Company's accountants in connection with
     the registration and delivery of the Shares under the Securities Act and
     all other fees or expenses in connection with the preparation and filing of
     the Registration Statement, any preliminary prospectus, the Prospectus and
     amendments and supplements to any of the foregoing, including all printing
     costs associated therewith, and the mailing and delivering of copies
     thereof to the Underwriters and dealers, in the quantities herein above
     specified, (ii) all costs and expenses related to the transfer and delivery
     of the Shares to the Underwriters, including any transfer or other taxes
     payable thereon, (iii) one half of the cost of printing or producing any
     Blue Sky or Legal Investment memorandum in connection with the offer and
     sale of the Shares under state 


                                       20


     securities laws and all expenses in connection with the qualification of
     the Shares for offer and sale under state securities laws as provided in
     Section 6(d) hereof, including filing fees and the reasonable fees and
     disbursements of counsel for the Underwriters in connection with such
     qualification and in connection with the Blue Sky or Legal Investment
     memorandum, (iv) one half of all filing fees and the reasonable fees and
     disbursements of counsel to the Underwriters incurred in connection with
     the review and qualification of the offering of the Shares by the National
     Association of Securities Dealers, Inc., (v) all fees and expenses in
     connection with the preparation and filing of the registration statement on
     Form 8-A relating to the Common Stock and all costs and expenses incident
     to listing the Shares on the Nasdaq National Market, (vi) the cost of
     printing certificates representing the Shares, (vii) the costs and charges
     of any transfer agent, registrar or depositary, (viii) in connection with
     any "road show" one half of the cost of any aircraft chartered in
     connection therewith and travel and lodging expenses of the representatives
     and officers of the Company, and (ix) all other costs and expenses incident
     to the performance of the obligations of the Company hereunder for which
     provision is not otherwise made in this Section. It is understood, however,
     that except as provided in this Section, Section 7 entitled "Indemnity and
     Contribution", and the last paragraph of Section 9 below, the Underwriters
     will pay all of their costs and expenses, including fees and disbursements
     of their counsel, stock transfer taxes payable on resale of any of the
     Shares by them and any advertising expenses connected with any offers they
     may make.

               (g) That in connection with the Directed Share Program, the
     Company will use its reasonable best efforts to ensure that the Directed
     Shares will be restricted to the extent required by the National
     Association of Securities Dealers, Inc. (the "NASD") or the NASD rules from
     sale, transfer, assignment, pledge or hypothecation for a period of three
     months following the date of the effectiveness of the Registration
     Statement. Morgan Stanley will notify the Company as to which Participants
     will need to be so restricted. The Company will direct the transfer agent
     to place stop transfer restrictions upon such securities for such period of
     time.

          Furthermore, the Company covenants with Morgan Stanley that the
Company will comply with all applicable securities and other applicable laws,
rules and regulations in each foreign jurisdiction, if any, in which the
Directed Shares are offered in connection with the Directed Share Program.

          7. Indemnity and Contribution. (a) The Company agrees to indemnify and
hold harmless each Underwriter and each person, if any, who controls any
Underwriter within the meaning of either Section 15 of the Securities Act or
Section 20 of the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), from and against any and all losses, claims, damages and liabilities
(including, without limitation, any legal or other expenses reasonably incurred
in connection with defending or investigating any such action or claim) caused
by any untrue statement or alleged untrue statement of a material fact contained
in the Registration Statement or any amendment thereof, any preliminary
prospectus or the Prospectus (as amended or 


                                       21


supplemented if the Company shall have furnished any amendments or supplements
thereto), or caused by any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, except insofar as such losses, claims, damages or
liabilities are caused by any such untrue statement or omission or alleged
untrue statement or omission based upon information relating to any Underwriter
furnished to the Company in writing by such Underwriter through you expressly
for use therein and except that the Company shall not be liable to any
Underwriter or any person who controls any Underwriter with respect to any
preliminary prospectus to the extent that any such loss, liability, claim,
damage or expense resulted from the fact that such Underwriter, sold Shares to a
person to whom such Underwriter failed to send or give, at or prior to the
Closing Date, a copy of the Prospectus, as then amended or supplemented, if (x)
the Company has previously furnished copies thereof (sufficiently in advance of
the Closing Date to allow for distribution by the Closing Date) to the
Underwriters and the loss, liability, claim, damage or expense of such
Underwriter or person who controls a Underwriter resulted from an untrue
statement or omission of a material fact contained in or omitted from any
preliminary prospectus which was corrected in the Prospectus as, if applicable,
amended or supplemented prior to the Closing Date and (y) the Prospectus (as so
amended or supplemented) would have cured the defect giving rise to such
asserted loss, claim, damage, liability or expense.

          (b) Each Underwriter agrees, severally and not jointly, to indemnify
and hold harmless the Company, its directors, its officers who sign the
Registration Statement and each person, if any, who controls the Company within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act to the same extent as the foregoing indemnity from the Company to
such Underwriter, but only with reference to information relating to such
Underwriter furnished to the Company in writing by such Underwriter through you
expressly for use in the Registration Statement, any preliminary prospectus, the
Prospectus or any amendments or supplements thereto.

          (c) In case any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to Section 7(a) or 7(b), such person (the "indemnified party")
shall promptly notify the person against whom such indemnity may be sought (the
"indemnifying party") in writing and the indemnifying party, upon request of the
indemnified party, shall retain counsel reasonably satisfactory to the
indemnified party to represent the indemnified party and any others the
indemnifying party may designate in such proceeding and shall pay the reasonable
fees and disbursements of such counsel related to such proceeding. The failure
so to notify the indemnifying party: (i) will not relieve it from liability
under paragraph (a) or (b) of this Section 7 unless and to the extent it did not
otherwise learn of such action and such failure results in the forfeiture by the
indemnifying party of substantial rights and defenses; and (ii) will not, in any
event, relieve the indemnifying party from any obligations to any indemnified
party other than the indemnification obligation provided in paragraph (a) or (b)
of this Section 7. In any such proceeding, any indemnified party shall have the
right to retain its own counsel, but the fees and expenses of such counsel shall
be at the expense of such indemnified party unless (i) the indemnifying party
and the indemnified party

                                       22


shall have mutually agreed to the retention of such counsel or (ii) the named 
parties to any such proceeding (including any impleaded parties) include both 
the indemnifying party and the indemnified party and representation of both 
parties by the same counsel would be inappropriate due to actual or potential 
differing interests between them. It is understood that the indemnifying 
party shall not, in respect of the legal expenses of any indemnified party in 
connection with any proceeding or related proceedings in the same 
jurisdiction, be liable for the reasonable fees and expenses of more than one 
separate firm (in addition to any local counsel) for all such indemnified 
parties and that in each case all such fees and expenses shall be reimbursed 
as they are incurred. Such firm shall be designated in writing by Morgan 
Stanley & Co. Incorporated in the case of parties indemnified pursuant to 
Section 7(a), and by the Company in the case of parties indemnified pursuant 
to Section 7(b). The indemnifying party shall not be liable for any 
settlement of any proceeding effected without its written consent, but if 
settled with such consent or if there be a final judgment for the plaintiff, 
the indemnifying party agrees to indemnify the indemnified party from and 
against any loss or liability by reason of such settlement or judgment. 
Notwithstanding the foregoing sentence, if at any time an indemnified party 
shall have requested an indemnifying party to reimburse the indemnified party 
for fees and expenses of counsel as contemplated by the second and third 
sentences of this paragraph, the indemnifying party agrees that it shall be 
liable for any settlement of any proceeding effected without its written 
consent if (i) such settlement is entered into more than 60 days after 
receipt by such indemnifying party of the aforesaid request and (ii) such 
indemnifying party shall not have reimbursed the indemnified party in 
accordance with such request prior to the date of such settlement other than 
such fees and expenses of counsel that are being contested in good faith by 
such indemnifying party. No indemnifying party shall, without the prior 
written consent of the indemnified party, effect any settlement of any 
pending or threatened proceeding in respect of which any indemnified party is 
or could have been a party and indemnity could have been sought hereunder by 
such indemnified party, unless such settlement includes an unconditional 
release of such indemnified party from all liability on claims that are the 
subject matter of such proceeding. Notwithstanding anything contained herein 
to the contrary, if indemnity may be sought pursuant to Section 7(g) hereof 
in respect of such action or proceeding, then in addition to such separate 
firm for the indemnified parties, the indemnifying party shall be liable for 
the reasonable fees and expenses of not more than one separate firm (in 
addition to any local counsel) for Morgan Stanley for the defense of any 
losses, claims, damages and liabilities arising out of the Directed Share 
Program, and all persons, if any, who control Morgan Stanley within the 
meaning of either Section 15 of the Act or Section 20 of the Exchange Act.

          (d) To the extent the indemnification provided for in Section 7(a) or
7(b) is unavailable to an indemnified party or insufficient in respect of any
losses, claims, damages or liabilities referred to therein, then each
indemnifying party under such paragraph, in lieu of indemnifying such
indemnified party thereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the Company on the one hand and the Underwriters on the
other hand from the offering of the Shares or (ii) if the allocation provided by
clause 7(d)(i) above is not permitted by applicable law, in such proportion


                                       23


as is appropriate to reflect not only the relative benefits referred to in
clause 7(d)(i) above but also the relative fault of the Company on the one hand
and of the Underwriters on the other hand in connection with the statements or
omissions that resulted in such losses, claims, damages or liabilities, as well
as any other relevant equitable considerations. The relative benefits received
by the Company on the one hand and the Underwriters on the other hand in
connection with the offering of the Shares shall be deemed to be in the same
respective proportions as the net proceeds from the offering of the Shares
(before deducting expenses) received by the Company and the total underwriting
discounts and commissions received by the Underwriters, in each case as set
forth in the table on the cover of the Prospectus, bear to the aggregate Public
Offering Price of the Shares. The relative fault of the Company on the one hand
and the Underwriters on the other hand shall be determined by reference to,
among other things, whether the untrue or alleged untrue statement of a material
fact or the omission or alleged omission to state a material fact relates to
information supplied by the Company or by the Underwriters and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission. The Underwriters' respective obligations to
contribute pursuant to this Section 7 are several in proportion to the
respective number of Shares they have purchased hereunder, and not joint.

          (e) The Company and the Underwriters agree that it would not be just
or equitable if contribution pursuant to this Section 7 were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in Section 7(d). The amount paid or payable
by an indemnified party as a result of the losses, claims, damages and
liabilities referred to in the immediately preceding paragraph shall be deemed
to include, subject to the limitations set forth above, any legal or other
expenses reasonably incurred by such indemnified party in connection with
investigating or defending any such action or claim. Notwithstanding the
provisions of this Section 7, no Underwriter shall be required to contribute any
amount in excess of the amount by which the total price at which the Shares
underwritten by it and distributed to the public were offered to the public
exceeds the amount of any damages that such Underwriter has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission. No person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation. The remedies provided for in this Section 7 are not exclusive
and shall not limit any rights or remedies which may otherwise be available to
any indemnified party at law or in equity.

          (f) The indemnity and contribution provisions contained in this
Section 7 and the representations, warranties and other statements of the
Company contained in this Agreement shall remain operative and in full force and
effect regardless of (i) any termination of this Agreement, (ii) any
investigation made by or on behalf of any Underwriter or any person controlling
any Underwriter or by or on behalf of the Company, its officers or directors or
any person controlling the Company and (iii) acceptance of and payment for any
of the Shares.


                                       24


          (g) The Company agrees to indemnify and hold harmless Morgan Stanley
and each person, if any, who controls Morgan Stanley within the meaning of
either Section 15 of the Securities Act or Section 20 of the Exchange Act
("Morgan Stanley Entities"), from and against any and all losses, claims,
damages and liabilities (including, without limitation, any legal or other
expenses reasonably incurred in connection with defending or investigating any
such action or claim) (i) caused by the failure of any Participant to pay for
and accept delivery of the shares which, immediately following the effectiveness
of the Registration Statement, were subject to a properly confirmed agreement to
purchase; or (ii) related to, arising out of, or in connection with the Directed
Share Program, provided that, the Company shall not be responsible under this
subparagraph (ii) for any losses, claim, damages or liabilities (or expenses
relating thereto) that are finally judicially determined to have resulted from
the bad faith or gross negligence of Morgan Stanley Entities.

          8. Termination. This Agreement shall be subject to termination by
notice given by you to the Company, if (a) after the execution and delivery of
this Agreement and prior to the Closing Date (i) trading generally shall have
been suspended or materially limited on or by, as the case may be, any of the
New York Stock Exchange, the American Stock Exchange, the National Association
of Securities Dealers, Inc., the Chicago Board of Options Exchange, the Chicago
Mercantile Exchange or the Chicago Board of Trade, (ii) trading of any
securities of the Company shall have been suspended on any exchange or in any
over-the-counter market, (iii) a general moratorium on commercial banking
activities in New York shall have been declared by either Federal or New York
State authorities or (iv) there shall have occurred any outbreak or escalation
of hostilities or any change in financial markets or any calamity or crisis
that, in your judgment, is material and adverse and (b) in the case of any of
the events specified in clauses 8(a)(i) through 8(a)(iv), such event, singly or
together with any other such event, makes it, in your judgment, impracticable to
market the Shares on the terms and in the manner contemplated in the Prospectus.

          9. Effectiveness; Defaulting Underwriters. This Agreement shall become
effective upon the execution and delivery hereof by the parties hereto.

          If, on the Closing Date or the Option Closing Date, as the case may
be, any one or more of the Underwriters shall fail or refuse to purchase Shares
that it has or they have agreed to purchase hereunder on such date, and the
aggregate number of Shares which such defaulting Underwriter or Underwriters
agreed but failed or refused to purchase is not more than one-tenth of the
aggregate number of the Shares to be purchased on such date, the other
Underwriters shall be obligated severally in the proportions that the number of
Firm Shares set forth opposite their respective names in Schedule I or Schedule
II bears to the aggregate number of Firm Shares set forth opposite the names of
all such non-defaulting Underwriters, or in such other proportions as you may
specify, to purchase the Shares which such defaulting Underwriter or
Underwriters agreed but failed or refused to purchase on such date; provided
that in no event shall the number of Shares that any Underwriter has agreed to
purchase pursuant to this Agreement be increased pursuant to this Section 9 by
an amount in excess of one-ninth of such number of Shares without


                                       25


the written consent of such Underwriter. If, on the Closing Date, any
Underwriter or Underwriters shall fail or refuse to purchase Firm Shares and the
aggregate number of Firm Shares with respect to which such default occurs is
more than one-tenth of the aggregate number of Firm Shares to be purchased, and
arrangements satisfactory to you and the Company for the purchase of such Firm
Shares are not made within 36 hours after such default, this Agreement shall
terminate without liability on the part of any non-defaulting Underwriter or the
Company. In any such case either you or the Company shall have the right to
postpone the Closing Date, but in no event for longer than seven days, in order
that the required changes, if any, in the Registration Statement and in the
Prospectus or in any other documents or arrangements may be effected. If, on the
Option Closing Date, any Underwriter or Underwriters shall fail or refuse to
purchase Additional Shares and the aggregate number of Additional Shares with
respect to which such default occurs is more than one-tenth of the aggregate
number of Additional Shares to be purchased, the non-defaulting Underwriters
shall have the option to (i) terminate their obligation hereunder to purchase
Additional Shares or (ii) purchase not less than the number of Additional Shares
that such non-defaulting Underwriters would have been obligated to purchase in
the absence of such default. Any action taken under this paragraph shall not
relieve any defaulting Underwriter from liability in respect of any default of
such Underwriter under this Agreement.

          If this Agreement shall be terminated by the Underwriters, or any of
them, because of any failure or refusal on the part of the Company to comply
with the terms or to fulfill any of the conditions of this Agreement, or if for
any reason the Company shall be unable to perform its obligations under this
Agreement, the Company will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
out-of-pocket expenses (including the fees and disbursements of their counsel)
reasonably incurred by such Underwriters in connection with this Agreement or
the offering contemplated hereunder.

          10. Counterparts. This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

          11. Applicable Law. This Agreement shall be governed by and construed
in accordance with the internal laws of the State of New York.

          12. Headings. The headings of the sections of this Agreement have been
inserted for convenience of reference only and shall not be deemed a part of
this Agreement.


                                       26



                                  Very truly yours,

                                  PATHNET, INC.

                                   By:
                                      ------------------------
                                      Name:
                                      Title:

Accepted as of the date hereof


MORGAN STANLEY & CO. INCORPORATED
BEAR, STEARNS & CO. INC.
LEHMAN BROTHERS, INC.
J.P. MORGAN SECURITIES INC.

Acting severally on behalf of themselves 
  and the several U.S. Underwriters 
  named in Schedule I hereto.

By: Morgan Stanley & Co. Incorporated

By:
   ---------------------------
   Name:
   Title:


MORGAN STANLEY & CO. INTERNATIONAL LIMITED
BEAR, STEARNS INTERNATIONAL LIMITED
LEHMAN BROTHERS INTERNATIONAL (EUROPE)
J.P. MORGAN SECURITIES LTD.

Acting severally on behalf of themselves
  and the several International Underwriters
  named in Schedule II hereto.

By: Morgan Stanley & Co. International Limited

By:
   ---------------------------
   Name:
   Title:


                                       27



                                                                      SCHEDULE I


                                U.S. UNDERWRITERS



                                                          Number of
                                                         Firm Shares
      Underwriter                                      To Be Purchased
                                                       ---------------

                                                 

Morgan Stanley & Co. Incorporated

Bear, Stearns & Co. Inc.

Lehman Brothers Inc.

J.P. Morgan Securities Inc.
                                                       ---------------
   Total U.S. Firm Shares ......................          3,750,000
                                                       ---------------
                                                       ---------------





                                                                     SCHEDULE II


                              INTERNATIONAL UNDERWRITERS




                                                          Number of
                                                         Firm Shares
      Underwriter                                      To Be Purchased
                                                       ---------------

                                                 

Morgan Stanley & Co. International Limited

Bear, Stearns International Limited

Lehman Brothers International (Europe)

J.P. Morgan Securities Ltd.
                                                       ---------------
   Total International Firm Shares .............           937,500
                                                       ---------------
                                                       ---------------





                                                                    SCHEDULE III

                     FOREIGN QUALIFICATIONS OF PATHNET, INC.


Jurisdiction
- ------------

California
Colorado
District of Columbia
Texas
Nevada
Kansas
Maryland
Kentucky
Pennsylvania
Nebraska
Iowa
Maine
Minnesota
Montana
Missouri
South Dakota
Wyoming
Louisiana
North Dakota
Illinois
Indiana
Oklahoma
Arkansas
New Mexico





                                                                       EXHIBIT A


                               [FORM OF LOCK-UP LETTER]


                                                                __________, 1998


Morgan Stanley & Co. Incorporated
Bear, Stearns & Co. Inc
J.P. Morgan Securities Inc.
Lehman Brothers Inc.
c/o Morgan Stanley & Co. Incorporated
    1585 Broadway
    New York, NY  10036

Morgan Stanley & Co. International Limited
Bear, Stearns International Limited
J.P. Morgan Securities Ltd.
Lehman Brothers International (Europe)
c/o Morgan Stanley & Co. International Limited
    25 Cabot Square
    Canary Wharf
    London E14 4QA
    England


Dear Sirs and Mesdames:

          The undersigned understands that Morgan Stanley & Co. Incorporated
("Morgan Stanley") and Morgan Stanley & Co. International Limited ("MSIL")
propose to enter into an Underwriting Agreement (the "Underwriting Agreement")
with Pathnet, Inc., a Delaware corporation (the "Company") providing for the
public offering (the "Public Offering") by the several Underwriters, including
Morgan Stanley and MSIL (the "Underwriters") of 4,687,500 shares (the "Shares")
of the common stock, par value $.01 per share, of the Company (the "Common
Stock").

          To induce the Underwriters that may participate in the Public Offering
to continue their efforts in connection with the Public Offering, the
undersigned hereby agrees that, without the prior written consent of Morgan
Stanley on behalf of the Underwriters, it will not, during the period commencing
on the date hereof and ending 180 days after the date of the final prospectus


                                      A-1


relating to the Public Offering (the "Prospectus"), (1) offer, pledge, sell,
contract to sell, sell any option or contract to purchase, purchase any option
or contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of, directly or indirectly, any shares of Common
Stock or any securities convertible into or exercisable or exchangeable for
Common Stock, or (2) enter into any swap or other arrangement that transfers to
another, in whole or in part, any of the economic consequences of ownership of
the Common Stock, whether any such transaction described in clause (1) or (2)
above is to be settled by delivery of Common Stock or such other securities, in
cash or otherwise. The foregoing sentence shall not apply to (a) the sale of any
Shares to the Underwriters pursuant to the Underwriting Agreement, (b)
transactions relating to shares of Common Stock or other securities acquired in
open market transactions after the completion of the Public Offering, 
(c) the exercise of an option to purchase shares of Common Stock or the 
surrender of shares of Common Stock or of an option to purchase share of Common
Stock in connection with an option, in each case, pursuant to options issued 
under existing employee benefit plans of the Company, (d) transfers by way of 
testate or intestate succession or by operation of law, (e) transfers to 
members of the immediate family of the undersigned or to a trust, limited 
liability company or entity, all of the beneficial interests which are held by 
the undersigned and (f) transfers to charitable organizations; PROVIDED that, 
in the case of transfers pursuant to clause (d), (e) and (f) of this sentence, 
the transferee shall have agreed to be bound by the restriction on transfer 
contained in this letter.
 
          In addition, the undersigned agrees that, without the prior written 
consent of Morgan Stanley on behalf of the Underwriters, it will not, during 
the period commencing on the date hereof and ending 180 days after the date of
the Prospectus, make any demand for or exercise any right with respect to, the
registration of any shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock.

          The undersigned further agrees that it will not request the consent 
of Morgan Stanley on behalf of the Underwiters to transfer or register more 
than an aggregate of 10,000 shares of Common Stock during the 180-day period 
referred to above without first (i) providing each of the other stockholders 
of the Company with ten days written notice of its intention to request such 
consent and (ii) offering to each of the other stockholders of the Company the
opportunity to join in such request pro rata based on the number of shares of 
Common Stock held by such stockholder.

          Whether or not the Public Offering actually occurs depends on a number
of factors, including market conditions. Any Public Offering will only be made
pursuant to an Underwriting Agreement, the terms of which are subject to
negotiation between the Company and the Underwriters.


                                   Very truly yours,

                                   _________________________
                                   (Name)

                                   _________________________
                                   (Address)


                                      A-2