Exhibit 10.2
                                                                  EXECUTION COPY


                          REGISTRATION RIGHTS AGREEMENT

     This Registration Rights Agreement (the "Agreement") is made and entered
into as of January 14, 1999, between NEXTLINK Communications, Inc., a Delaware
corporation (the "Company"), and the persons and entities that have executed and
delivered the Consent and Indemnity Agreement of Stockholders in the form
attached to the Merger Agreement (as defined) (the "Holders") by and through the
execution of this Agreement by Thomas H. Jones (the "Stockholders'
Representative") as their attorney-in-fact.

     This Agreement is made in connection with the Agreement and Plan of Merger,
dated the date hereof (the "Merger Agreement") among the Company, PCO
Acquisition Corp., a Delaware corporation wholly owned by the Company, and WNP
Communications, Inc., a Delaware corporation ("WNP"), pursuant to which the
Holders may acquire Class A Common Stock of the Company. The execution of and
delivery of this Agreement is a condition precedent to the issuance of the
Company's Class A Common Stock pursuant to the Merger Agreement.

     Capitalized terms used herein without definition are used as defined in the
Merger Agreement.

     The parties hereby agree as follows:

1.   CERTAIN DEFINITIONS

     As used in this Agreement, the following terms shall have the following
respective meanings:

         (a) "AFFILIATE OF THE COMPANY" means any officer, director, or holder
         of 10% or more of any class of security issued by the Company, other
         than a Holder.

         (b) "BUSINESS DAY" means any day, other than a Saturday, Sunday or
         legal holiday, on which banks in the State of New York are open for
         business.

         (c) "COMMISSION" means the Securities and Exchange Commission.

         (d) "COMMON STOCK" means the Class A Common Stock, par value $.02 per
         share, of the Company, as constituted on the date hereof, any shares
         into which such Common Stock shall have been changed, or any shares
         resulting from any reclassification of such Common Stock.

         (e) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
         amended, or any successor statute thereto, and the rules and
         regulations of the Commission promulgated thereunder, all as the same
         shall be in effect at the time.

         (f) "HOLDERS" means the Holders referred to in the Preamble, any
         person holding Registrable Securities as a result of a distribution of
         such securities by a Holder to its 




         equity owners, and any other person holding Registrable Securities to 
         whom these registration rights have been assigned pursuant to 
         Section 9(f) of this Agreement.

         (g) "PERSON" shall mean an individual, partnership, corporation,
         limited liability company, association, trust, joint venture,
         unincorporated organization and any government, governmental department
         or agency or political subdivision thereof.

         (h) "REGISTRABLE SECURITIES" means (i) the Common Stock held by any
         Holder; (ii) any Common Stock or other securities issued or issuable
         pursuant to the conversion of, or with respect to, the Common Stock
         held by any Holder upon any stock split, stock dividend,
         recapitalization, or similar event; and (iii) securities issued in
         replacement or exchange of any of the securities issued in clauses (i)
         or (ii) above. A security shall cease to be a Registrable Security when
         (A) such security has been disposed of by a Holder pursuant to and in
         the manner described in an effective registration statement under the
         Securities Act or (B) such security has been sold or distributed by a
         Holder pursuant to Rule 144 or 145 under the Securities Act.

         (i) "REGISTRATION EXPENSES" means all expenses incident to the
         Company's performance of or compliance with this Agreement, including,
         without limitation, all registration, filing, listing and National
         Association of Securities Dealers, Inc. ("NASD") fees, all fees and
         expenses of complying with securities or blue sky laws, all word
         processing, duplicating and printing expenses, all messenger and
         delivery expenses, any transfer taxes, the fees and expenses of the
         Company's legal counsel and independent public accountants, including
         the expenses of any special audits or "cold comfort" letters required
         by or incident to such performance and compliance, fees and
         disbursements of one counsel for all or a majority of the Holders, and
         any fees and disbursements of underwriters customarily paid by issuers
         or sellers of securities; PROVIDED, HOWEVER, that Registration Expenses
         shall not include underwriting discounts and commissions.

         (j) "REQUISITE HOLDERS" means Holders holding Registrable Securities
         having a fair market value at the time of no less than $30,000,000.

         (k) "SECURITIES ACT" means the Securities Act of 1933, as amended, or
         any successor statute thereto, and the rules and regulations of the
         Commission promulgated thereunder, all as the same shall be in effect
         at the time.

2.       REGISTRATION.

         (a) RESALE AT CLOSING. The Company will use reasonable best efforts to
         have shares of Common Stock issued to the Holders at the Closing having
         an aggregate market value of approximately $175 million registered
         under the Securities Act for resale by the Holders in an underwritten
         offering (the "Initial Offering") pursuant to a registration statement
         (the "Initial Registration Statement") that has been declared effective
         by the Commission within 30 days following the Closing, which
         registration statement shall be kept effective by the Company until the
         earlier of such time as the Initial Offering is completed or the
         expiration of 60 days following the effectiveness of the Initial


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         Registration Statement. Each Holder shall be entitled to sell its PRO
         RATA share of the shares of Common Stock it receives in the Merger in
         the Initial Offering; PROVIDED, HOWEVER, that any Holder not wishing to
         sell some or all of its PRO RATA portion of shares may elect not to
         participate in the Initial Offering or may elect to sell in such
         offering less than its PRO RATA portion of shares by written notice
         delivered to the Company at least two business days prior to the
         Closing, in which case the aggregate number of shares permitted to be
         sold by all other participating Holders will be increased PRO RATA by
         the number of shares that would otherwise have been allotted to
         non-participating or partially participating Holders. Each Holder
         acknowledges and agrees that the Company may elect to include
         additional shares of Common Stock having an aggregate market value of
         approximately $165 million ($115 million for the Company's account and
         $50 million for the account of a third party) in the Initial
         Registration Statement and the Initial Offering, and may be required to
         include additional shares pursuant to registration rights agreements
         heretofore furnished to WNP. All shares offered in the Initial Offering
         shall be subject to the provisions of subdivision (g) below.

         (b) DEMAND REGISTRATION. At any time and from time to time after 180
         days following the commencement of the Initial Offering, upon written
         request by the Requisite Holders that the Company effect the
         registration under the Securities Act of all or part of the Registrable
         Securities (a "Demand Request"), the Company will use reasonable best
         efforts to register the Registrable Securities which the Company has
         been so requested to register by the Holders under the Securities Act
         for resale by the Holders in an underwritten offering (a "Subsequent
         Offering") pursuant to a registration statement (the "Subsequent
         Registration Statement") that has been declared effective by the
         Commission, which registration statement shall be kept effective by the
         Company until the earlier of such time as the Subsequent Offering is
         completed or the expiration of 60 days following the effectiveness of
         the Subsequent Registration Statement. The Company will use reasonable
         best efforts to have each Subsequent Registration Statement declared
         effective by the Commission within ninety (90) days after receipt of
         such request or within sixty (60) days after receipt of such request if
         the Company is qualified to file a registration statement on Commission
         Form S-3, S-2 or any successor or similar short-form registration
         statement (collectively, "Commission Form S-3"). Subject to subdivision
         (g), the Company may include in such Subsequent Registration Statement
         and Subsequent Offering other securities of the Company for sale, for
         the Company's account or for the account of any other person. Upon
         receipt of a Demand Request, the Company shall promptly give written
         notice of such request to all Holders, and all Holders shall be
         afforded the opportunity to participate in such request as follows:
         subject to subdivision (g), the Company will include in each Subsequent
         Registration Statement and Subsequent Offering such number of
         Registrable Securities of any Holder joining in such request as are
         specified in a written request by the Holder received by the Company
         within 20 days after receipt of such written notice from the Company.

         (c) INCIDENTAL REGISTRATION. For so long as Registrable Securities are
         outstanding, if the Company for itself or any of its security holders
         shall at any time or times after the date hereof determine to register
         under the Securities Act any shares of its capital stock or 


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         other securities (other than: (i) the registration of an offer, sale 
         or other disposition of securities solely to employees of, or other 
         persons providing services to, the Company, or any subsidiary 
         pursuant to an employee or similar benefit plan; or (ii) the 
         issuance of securities in a merger, acquisition or other transaction 
         of the type described in Rule 145 under the Securities Act or a 
         comparable or successor rule, registered on Form S-4 or similar or 
         successor forms), on each such occasion the Company will notify each 
         Holder of Registrable Securities of such determination at least 
         thirty (30) days prior to the filing of such registration statement, 
         and upon the request of any Holder given in writing within twenty 
         (20) days after the receipt of such notice, the Company will cause 
         any of the Registrable Securities specified by any such Holder to be 
         included in such registration statement to the extent such 
         registration is permissible under the Securities Act and subject to 
         the conditions of the Securities Act and subdivision (g) (an 
         "Incidental Registration").

         (d) REGISTRATION STATEMENT FORM. The Company shall, if permitted by
         law, effect any registration requested under Section 2 by the filing of
         a registration statement on Commission Form S-3.

         (e) EXPENSES. The Company shall pay all Registration Expenses incurred
         in connection with the Initial Registration Statement, any Subsequent
         Registration Statement and any Incidental Registration Statement. Those
         Holders of Registrable Securities participating in the Initial
         Offering, any Subsequent Offering and any Incidental Registration shall
         bear their respective PRO RATA share of any applicable underwriting
         discounts and commissions; such participating Holders agree that the
         proceeds received by them upon consummation of any such offering shall
         be net of any and all such discounts and commissions.

         (f) EFFECTIVE REGISTRATION STATEMENT. Neither the Initial Registration
         Statement, a Subsequent Registration Statement, nor an Incidental
         Registration requested pursuant to this Section 2 shall be deemed to
         have been effected until it has become effective with the Commission.
         Notwithstanding the foregoing, a registration statement will not be
         deemed to have been effected if: (i) after it has become effective with
         the Commission, such registration is interfered with by any stop order,
         injunction, or other order or requirement of the Commission or other
         governmental agency or any court proceeding for any reason other than a
         misrepresentation or omission by any Holder; or (ii) the conditions to
         consummation of the Initial Offering or any Subsequent Offering
         contained in the underwriting agreement entered into in connection with
         such registration are not satisfied, other than solely by reason of
         some act or omission by any Holder.

         (G) PRIORITY IN UNDERWRITTEN REGISTRATIONS. If a registration is an
         underwritten registration and the managing underwriters shall give
         written advice to the Company and the Persons requesting such
         registration that, in their opinion, market conditions dictate that no
         more than a specified maximum number of securities could successfully
         be included in such registration, then the maximum number of securities
         included in such registration statement shall be limited to such
         specified number, and the rights of the 


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         Holders to participate in such registration shall be subject to the 
         following cutback provisions:

                  (i) In the case of the Initial Offering, the securities
                  sought to be included in such offering by the Holders shall be
                  excluded on a PRO RATA basis with the securities sought to be
                  included in the Initial Offering by the Company and all other
                  Persons seeking inclusion of securities in such offering
                  (including pursuant to so-called piggyback registration
                  rights), based upon the Holder's, the Company's and the other
                  Persons' relative number of securities sought to be so
                  included until the aggregate market value of the securities
                  sought to be included in such offering by the Holders has been
                  reduced to approximately $125 million, after which any
                  additional securities required to be excluded from such
                  offering in order to comply with the advice of the managing
                  underwriter shall be securities that were to have been offered
                  for the Company's account until the offering includes no such
                  securities, after which the securities sought to be included
                  in such offering by the Holders shall be excluded on a PRO
                  rata basis with the securities sought to be included in the
                  Initial Offering by all other Persons seeking inclusion of
                  securities in such offering (including pursuant to so-called
                  piggyback registration rights), based upon the Holder's and
                  the other Persons' relative number of securities sought to be
                  so included;

                  (ii) In the case of any Subsequent Offering, (a) the
                  securities sought to be included in such offering by the
                  Company for its own account shall have priority for inclusion
                  over any Registrable Securities held by the Holders and (b)
                  Registrable Securities held by the Holders may be excluded on
                  a PRO RATA basis with all other Persons seeking inclusion of
                  securities in such offering pursuant to the exercise of
                  so-called piggyback registration rights, based upon such
                  Holder's and other Persons' relative number of securities
                  sought to be so included; and

                  (iii) If the registration is an Incidental Registration, (a)
                  the securities sought to be registered by the Company for its
                  own account shall have priority for inclusion, (b) the
                  securities sought to be registered for the account of other
                  Persons exercising demand registration rights shall have
                  priority for inclusion to the extent such rights require such
                  priority and (c) Registrable Securities held by the Holders
                  may be excluded on a PRO RATA basis with all other Persons
                  seeking inclusion of securities in such registration pursuant
                  to the exercise of so-called piggyback registration rights,
                  based upon such Holder's and other Persons' relative number of
                  securities sought to be so included.

         (h) BLACKOUT AND POSTPONEMENT. Notwithstanding anything in paragraphs
         (a), (b), and (c) of this Section 2, the Company shall have the right
         (i) to delay any registration of Registrable Securities requested
         pursuant to paragraph (a), (b) or (c) of this Section 2 or (ii) upon
         written notice to the Holders, to prohibit the Holders from selling
         Registrable Securities under the Initial Registration Statement, any
         Subsequent Registration Statement, or any Incidental Registration, in
         any case for up to 120 days if such 


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         registration or sale, as applicable, would, in the judgment of the 
         Company as reflected in an officer's certificate delivered to the 
         Holders, require disclosures that would not be in the Company's best 
         interest to make at such time, as applicable; PROVIDED, HOWEVER, 
         that (i) the Initial Registration Statement and the Initial Offering 
         shall not be delayed or blacked-out for more than 120 days in the 
         aggregate and (ii) registrations other than the Initial Registration 
         Statement shall not be delayed and/or sale prohibitions relating to 
         offerings other than the Initial Offering shall not be in effect 
         pursuant to the provisions of this paragraph (h) for more than 270 
         days during any period of 365 days. The time period during which any 
         sale prohibition relating to the Initial Registration Statement or a 
         Subsequent Registration Statement is in effect under this Section 
         2(h) shall be added to the time period for which the Initial 
         Registration Statement or a Subsequent Registration Statement, as 
         the case may be, is otherwise required to remain effective under 
         this Agreement.

3.       REGISTRATION PROCEDURES.

         (a) If and whenever the Company is required to effect the registration
         of any Registrable Securities under the Securities Act as provided in
         Section 2, the Company, as expeditiously as possible and subject to the
         terms and conditions of Section 2, will:

                  (i) prepare and file with the Commission the requisite
                  registration statement to effect such registration and use its
                  best efforts to cause such registration to become and remain
                  effective;

                  (ii) permit any Holder which, in the reasonable judgment of
                  the Holder, might be deemed to be an underwriter or a
                  controlling person of the Company, to participate in the
                  preparation of such registration statement and to require the
                  insertion therein of material, furnished to the Company in
                  writing, which in the reasonable judgment of such Holder and
                  its counsel should be included and which is not reasonably
                  objected to by the Company and its counsel;

                  (iii) prepare and file with the Commission such amendments
                  and supplements to such registration statement and the
                  prospectus used in connection therewith as may be necessary to
                  keep such registration statement effective and to comply with
                  the provisions of the Securities Act with respect to the
                  disposition of all securities covered by such registration
                  statement until the earlier of such time as all of such
                  securities have been disposed of in accordance with the
                  intended methods of disposition by the seller or sellers
                  thereof set forth in such registration statement or the
                  expiration of 60 days after such registration statement
                  becomes effective (in the case of the Initial Registration
                  Statement or a Subsequent Registration Statement);

                  (iv) furnish to the Holders such number of conformed copies
                  of such registration statement and of each such amendment and
                  supplement thereto (in each case including all exhibits), such
                  number of copies of the prospectus contained in such
                  registration statement (including each preliminary prospectus


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                  and any summary prospectus) and any other prospectus filed
                  under Rule 424 under the Securities Act, in conformity with
                  the requirements of the Securities Act, and such other
                  documents, as the purchaser or any Holder of Registrable
                  Securities to be sold under such registration statement may
                  reasonably request in order to facilitate the distribution of
                  such Registrable Securities;

                  (v) use its best efforts to register or qualify all
                  Registrable Securities covered by such registration statement
                  under such other United States state securities or blue sky
                  laws of such jurisdictions as any Holder of Registrable
                  Securities to be sold under registration statement shall
                  reasonably request, to keep such registration or qualification
                  in effect for so long as such registration remains in effect,
                  and take any other action which may be customary in similar
                  offerings to enable the Holder of Registrable Securities to be
                  sold under such registration statement to consummate the
                  disposition in such jurisdictions of the securities owned by
                  such Holder, except that the Company shall not for any such
                  purpose be required to (a) qualify generally to do business as
                  a foreign corporation in any jurisdiction wherein it would not
                  but for the requirements of this subdivision (v) be obligated
                  to be so qualified, or (b) subject itself to taxation in any
                  such jurisdiction.

                  (vi) use its best efforts to cause all Registrable Securities
                  covered by such registration statement to be registered with
                  or approved by such other United States state governmental
                  agencies or authorities as may be necessary to enable the
                  Holder of Registrable Securities to be sold under such
                  registration statement to consummate the intended disposition
                  of such Registrable Securities;

                  (vii) in the event of the issuance of any stop order
                  suspending the effectiveness of the registration statement, or
                  of any order suspending or preventing the use of any related
                  prospectus or suspending the qualification of any Registrable
                  Securities included in such registration statement for sale in
                  any jurisdiction, the Company shall use its best efforts
                  promptly to obtain the withdrawal of such order;

                  (viii) furnish to the Holders of Registrable Securities to be
                  sold under such registration statement an opinion, dated the
                  effective date of the registration statement, of the
                  independent counsel representing the Company for the purposes
                  of such registration, addressed to the underwriters, if any,
                  and to the Holders making such request, stating that such
                  registration statement has become effective under the
                  Securities Act and that (i) to the best knowledge of such
                  counsel, no stop order suspending the effectiveness thereof
                  has been issued and no proceedings for that purpose have been
                  instituted or are pending or contemplated under the Securities
                  Act; (ii) the registration statement, the related prospectus,
                  and each amendment or supplement thereto, comply as to form in
                  all material respects with the requirements of the Securities
                  Act and the applicable rules and regulations of the Commission
                  thereunder (except that such counsel need express 


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                  no opinion as to financial statements and related schedules 
                  and other projected financial or statistical data contained 
                  therein); (iii) the descriptions in the registration 
                  statement or the prospectus, or any amendment or supplement 
                  thereto, of all legal and governmental matters and 
                  contracts and other legal documents or instruments are 
                  accurate and fairly present the information required to be 
                  shown; and (v) such counsel does not know of any legal or 
                  governmental proceedings, pending or contemplated, required 
                  to be described in the registration statement or 
                  prospectus, or any amendment or supplement thereto, which 
                  are not described as required nor of any contracts or 
                  documents or instruments of a character required to be 
                  described in the registration statement or prospectus, or 
                  any amendment or supplement thereto or to be filed as 
                  exhibits to the registration statement which are not 
                  described and filed as required. Such counsel shall also 
                  opine that, in the course of assisting the Company in 
                  preparing the Registration Statement, nothing has come to 
                  their attention that would cause them to believe that the 
                  Registration Statement (excluding the financial and 
                  statistical information contained therein) contains any 
                  untrue statement of a material fact or omits a material 
                  fact necessary to make the statements therein, in light of 
                  the circumstances under which they were made not misleading.

                  (ix) furnish to the Holders of Registrable Securities to be
                  sold under the Registration Statement a letter, dated the
                  effective date of the registration statement, from the
                  independent certified public accountants of the Company,
                  addressed to the underwriters, if any, and to the Holders
                  making such request, stating that they are independent
                  certified public accountants within the meaning of the
                  Securities Act and that in the opinion of such accountants,
                  the financial statements and other financial data of the
                  Company included in the registration statement or the
                  prospectus, or any amendment or supplement thereto, comply as
                  to form in all material respects with the applicable
                  accounting requirements of the Securities Act. Such letter
                  from the independent certified public accountants shall
                  additionally cover such other financial matters (including
                  information as to the period ending not more than five
                  business days prior to the date of such letter) with respect
                  to the registration in respect of which such letter is being
                  given as the Holders may reasonably request.

                  (x) immediately notify the Holders of Registrable Securities
                  included in such registration statement at any time when a
                  prospectus relating thereto is required to be delivered under
                  the Securities Act, of the happening of any event as a result
                  of which the prospectus included in such registration
                  statement, as then in effect, includes an untrue statement of
                  material fact or omits to state any material fact required to
                  be stated therein or necessary to make the statements therein
                  not misleading in the light of the circumstances under which
                  they were made, and at the request of the Holders promptly
                  prepare and furnish to the Holders a reasonable number of
                  copies of a supplement to or an amendment of such prospectus
                  as may be necessary so that, as thereafter delivered to the
                  purchasers of such securities, such prospectus shall not
                  include an untrue statement of a material 


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                  fact or omit to state a material fact required to be stated 
                  therein or necessary to make the statements therein not 
                  misleading in the light of the circumstances under which 
                  they were made;

                  (xi) otherwise use all reasonable best efforts to comply with
                  all applicable rules and regulations of the Commission, and
                  make available to its security holders, as soon as reasonably
                  practicable, an earnings statement covering the period of at
                  least twelve months, but not more than eighteen months,
                  beginning with the first full calendar month after the
                  effective date of such registration statement, which earnings
                  statement shall satisfy the provisions of Section 11(a) of the
                  Securities Act and Rule 158 thereunder, and not file any
                  amendment or supplement to such registration statement or
                  prospectus to which any Holder shall have reasonably objected
                  in writing on the grounds that such amendment or supplement
                  does not comply in all material respects with the requirements
                  of the Securities Act or of the rules or regulations
                  thereunder, having been furnished with a copy thereof at least
                  two business days prior to the filing thereof to the extent
                  reasonably possible;

                  (xii) provide a transfer agent for all Registrable Securities
                  covered by such registration statement not later than the
                  effective date of such registration statement;

                  (xiii) use all reasonable best efforts to cause to be quoted
                  or listed all Registrable Securities covered by such
                  registration statement on NASDAQ and any securities exchange
                  on which any of the Registrable Securities are then quoted or
                  listed;

                  (xiv) confer with the Stockholders' Representative as to
                  mutually beneficial and appropriate time to schedule the
                  Initial Offering and the first Subsequent Offering and make
                  available the Company's management to participate in roadshow
                  presentations and conference calls with respect to such
                  offerings; and

                  (xv) confer with the Stockholders' Representative as to
                  mutually beneficial and appropriate time to schedule any other
                  underwritten offerings of Company Common Stock that will
                  include Registrable Securities and use all reasonable best
                  efforts to work with the Stockholders' Representative to
                  schedule such offerings so that the Company's management will
                  be able to participate in roadshow presentations and
                  conference calls with respect to any additional Subsequent
                  Offerings in excess of $100 million, the availability of its
                  senior management, however, being subject to conflicting
                  business necessities.

         (b) As a condition to the Company's obligation under this Section with
         respect to any Holder, the Company may require such Holder of
         Registrable Securities to be sold under such registration statement, at
         the Company's expense, to furnish the Company with such information and
         undertakings as it may reasonably request regarding such Holder and the


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         distribution of such securities as the Company may from time to time
         reasonably request in writing.

         (c) Each Holder, by execution of this Agreement, agrees (A) that upon
         receipt of any notice of the Company of the happening of any event of
         the kind described in subdivision (a)(x) of this Section 3, such Holder
         will forthwith discontinue its disposition of Registrable Securities
         pursuant to the registration statement relating to such Registrable
         Securities until the receipt by such Holder of the copies of the
         supplemented or amended prospectus contemplated by subdivision (a)(x)
         of this Section 3 and, if so directed by the Company, will deliver to
         the Company all copies (other than permanent file copies), then in
         possession of the Holders of the prospectus relating to such
         Registrable Securities current at the time of receipt of such notice
         and (B) that it will immediately notify the Company, at any time when a
         prospectus relating to the registration of such Registrable Securities
         is required to be delivered under the Securities Act, of the happening
         of any event as a result of which information previously furnished in
         writing by such Holder to the Company for inclusion in such prospectus
         contains an untrue statement of a material fact or omits to state any
         material fact required to be stated therein or necessary to make the
         statements therein not misleading in the light of the circumstances
         under which they were made. In the event the Company or any such Holder
         shall give any such notice, the period referred to in subdivision
         (a)(iii) of this Section 3 shall be extended by a number of days equal
         to the number of days during the period from and including the giving
         of notice pursuant to subdivision (a)(x) of this Section 3 to and
         including the date when such Holder shall have received the copies of
         the supplemented or amended prospectus contemplated by subdivision
         (a)(x) of this Section 3.

4.       UNDERWRITTEN OFFERINGS.

         (a) UNDERWRITTEN OFFERING. In connection with any underwritten
         offering pursuant to a registration under Section 2, the Company will
         enter into an underwriting agreement with the underwriters for such
         offering, such agreement to be in form and substance reasonably
         satisfactory to all Holders requesting such registration and such
         underwriters in their reasonable judgment and to contain such
         representations and warranties by the Company and such other terms as
         are customarily contained in agreements of that type, including,
         without limitation, indemnities to the effect and to the extent
         provided in Section 6. Each such Holder shall be a party to such
         underwriting agreement and may, at its option, require that any or all
         of the representations and warranties by, and the other agreements on
         the part of, the Company to and for the benefit of such underwriters
         shall also be made to and for the benefit of each such Holder and that
         any or all of the conditions precedent to the obligations of such
         underwriters under such underwriting agreement be conditions precedent
         to the obligations of each such Holder. No Holder shall be required to
         make any representations or warranties to or agreements with the
         Company or the underwriters other than representations, warranties or
         agreements regarding such Holder and its intended method of
         distribution and any other representation required by law.


                                      - 10 -



         (b) SELECTION OF UNDERWRITERS. The Company shall select its customary
         underwriter or, alternatively, an underwriting firm of national
         reputation, with expertise in comparable offerings by companies engaged
         in businesses similar to that of the Company that is reasonably
         satisfactory to the Stockholders' Representative, for the Initial
         Offering, any Subsequent Offering and any underwritten offering
         pursuant to an Incidental Registration.

         (c) HOLDBACK AGREEMENTS. Each Holder agrees, if required by the
         managing underwriter in any offering, not to effect any public sale or
         distribution of Registrable Securities (other than sales pursuant to
         the Initial Registration Statement), any sale or distribution thereof
         pursuant to Rule 144 or 145 under the Securities Act, or any short sale
         thereof or any transaction or series of transactions having a
         substantially similar economic effect during the period beginning, in
         the case of the Initial Registration Statement, on the date hereof and
         ,in the case of each Subsequent and Incidental Registration, beginning
         seven days prior to the effective date of such registration statement,
         and ending on the date 180 days after the Initial Registration
         Statement, any Subsequent Registration Statement or any Incidental
         Registration Statement shall have been declared effective, PROVIDED
         that in the event the Initial Registration Statement shall not have
         been declared effective within 30 days following the Closing Date and a
         majority-in-interest of the Holders participating in the Initial
         Offering shall have voted to be released, in whole or in part, from
         such restrictions, all of the Holders shall be released, in whole or in
         part, as so determined, from such restrictions with respect to the
         Initial Offering. In addition, if (i) the gross proceeds to the Holders
         in the Initial Offering are less than $150 million and a
         majority-in-interest of the Holders participating in such offering vote
         to be released, in whole or in part, from the restrictions contained in
         the preceding sentence or (ii) the gross proceeds to the Holders in any
         Subsequent Offering are less than $30 million and a
         majority-in-interest of all Holders of Registrable Securities vote to
         be released, in whole or in part, from the restrictions contained in
         the preceding sentence then all Holders shall be released from the
         restrictions contained in the preceding sentence with respect to such
         offering, in whole or in part, as so determined.

5.       PREPARATION, REASONABLE INVESTIGATION.

                  In connection with the preparation and filing of each
         registration statement under the Securities Act, the Company will give
         the Stockholders' Representative, the underwriters, if any, and their
         respective counsel and accountants, drafts and final copies of such
         registration statement, each prospectus included therein or filed with
         the Commission and each amendment thereof or supplement thereto, at
         least 5 business days prior to the filing thereof with the Commission,
         and will give each of them such access to its books and records and
         such opportunities to discuss the business of the Company with its
         officers and the independent public accountants who have certified its
         financial statements as shall be necessary, in the opinion of such
         Holders' and such underwriters' respective counsel, to conduct a
         reasonable investigation within the meaning of the 


                                      - 11 -



         Securities Act.

6.       INDEMNIFICATION AND CONTRIBUTION.

         (a) INDEMNIFICATION BY THE COMPANY. In the event of any registration
         under the Securities Act pursuant to Section 2 of any Registrable
         Securities covered by such registration, the Company will, and hereby
         does, indemnify and hold harmless each Holder of Registrable Securities
         to be sold under such registration statement, each such Holder's legal
         counsel, each other person who participates as an underwriter in the
         offering or sale of such securities (if so required by such underwriter
         as a condition to including the Registrable Securities of the Holders
         in such registration) and each other person, if any, who controls any
         such Holder or any such underwriter within the meaning of the
         Securities Act (collectively, the "Indemnified Parties"), against any
         losses, claims, damages or liabilities, joint or several, to which the
         Holders or underwriter or controlling person may become subject under
         the Securities Act or otherwise, insofar as such losses, claims,
         damages or liabilities (or actions or proceedings, whether commenced or
         threatened, in respect thereof) arise out of or are based upon any
         untrue statement or alleged untrue statement of any material fact
         contained in any registration statement under which such securities
         were registered under the Securities Act, any preliminary prospectus,
         final prospectus or summary prospectus contained therein or any
         document incorporated therein by reference, or any amendment or
         supplement thereto, or 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, or arise out of any
         violation by the Company of any rule or regulation promulgated under
         the Securities Act or state securities law applicable to the Company
         and relating to action or inaction required of the Company in
         connection with any such registration, and the Company will reimburse
         the Indemnified Parties for any legal or any other expenses reasonably
         incurred by them in connection with investigating or defending any such
         loss, claim, liability, action or proceeding; PROVIDED, HOWEVER, that
         the Company shall not be liable to any Indemnified Party in any such
         case to the extent that any such loss, claim, damage, liability (or
         action or proceeding in respect thereof) or expense arises out of or is
         based upon any untrue statement or alleged untrue statement or omission
         or alleged omission made in such registration statement, any such
         preliminary prospectus, final prospectus, summary prospectus, amendment
         or supplement in reliance upon and in conformity with written
         information furnished to the Company by such Indemnified Party
         specifically for use therein.

         (b) INDEMNIFICATION BY THE HOLDERS. The Company may require, as a
         condition to including any Registrable Securities of any Holder in any
         registration statement filed pursuant to Section 2, that the Company
         shall have received an undertaking reasonably satisfactory to it from
         such Holder to indemnify and hold harmless (in the same manner and to
         the same extent as set forth in subdivision (a) of this Section 6) the
         Company, each director of the Company, each officer of the Company and
         each other person, if any, who controls the Company within the meaning
         of the Securities Act, with respect to any 


                                      - 12 -



         statement or alleged statement in or omission or alleged omission 
         from such registration statement, any preliminary prospectus, final 
         prospectus or summary prospectus contained therein, or any amendment 
         or supplement thereto, if, and only if, and only to the extent that, 
         such statement or alleged statement or omission or alleged omission 
         was made in reliance upon and in conformity with information 
         furnished in writing to the Company directly by such Holder 
         specifically for use therein; provided, however, that the obligation 
         of any Holder hereunder shall be limited to an amount equal to the 
         net proceeds received by such Holder upon the sale of Registrable 
         Securities sold in the offering covered by such registration.

         (c) NOTICES OF CLAIMS, ETC. Promptly after receipt by an Indemnified
         Party of notice of the commencement of any action or proceeding
         involving a claim referred to in the preceding subdivisions of this
         Section 6, such Indemnified Party will, if a claim in respect thereof
         is to be made against a party required to provide indemnification (an
         "Indemnifying Party"), give written notice to the latter of the
         commencement of such action, PROVIDED, HOWEVER, that the failure of any
         Indemnified Party to give notice as provided herein shall not relieve
         the Indemnifying Party of its obligation under the preceding
         subdivisions of this Section 6, except to the extent that the
         Indemnifying Party is actually prejudiced by such failure to give
         notice. In case any such action is brought against an Indemnified
         Party, unless in such Indemnified Party's reasonable judgment a
         conflict of interest between such Indemnified and indemnifying parties
         may exist in respect of such claim, the Indemnifying Party shall be
         entitled to participate in and to assume the defense thereof, jointly
         with any other Indemnifying Party similarly notified to the extent that
         it may wish, with counsel reasonably satisfactory to such Indemnified
         Party, and after notice from the Indemnifying Party to such Indemnified
         Party of its election so to assume the defense thereof, the
         Indemnifying Party shall not be liable to such Indemnified Party for
         any legal or other expenses subsequently incurred by the latter in
         connection with the defense thereof other than reasonable costs of
         investigation. No Indemnifying Party shall consent to entry of any
         judgment or enter into any settlement without the consent of the
         Indemnified Party which does not include as an unconditional term
         thereof the giving by the claimant or plaintiff to such Indemnified
         Party of a release from all liability in respect to such claim or
         litigation.

         (d) OTHER INDEMNIFICATION. Indemnification substantially equivalent to
         that specified in the preceding subdivisions of this Section 6 (with
         appropriate modifications) shall be given by the Company and each
         Holder of Registrable Securities included in any registration statement
         with respect to any required registration or other qualification of
         securities under any Federal or state law or regulation of any
         governmental authority, other than the Securities Act.

         (e) INDEMNIFICATION PAYMENT. The indemnification required by this
         Section 6 shall be made by periodic payments of the amount thereof
         during the course of the investigation or defense, as and when bills
         are received or expense, loss, damage or liability is incurred.


                                      - 13 -



         (f) SURVIVAL OF OBLIGATIONS. The obligations of the Company and of the
         Holders under this Section 6 shall survive the completion of any
         offering of Registrable Securities under this Agreement.

         (g) CONTRIBUTION. If the indemnification provided for in this Section
         6 is unavailable or insufficient to hold harmless an Indemnified Party,
         then each Indemnifying Party shall contribute to the amount paid or
         payable to such Indemnified Party as a result of the losses, claims,
         damages or liabilities referred to in this Section 6 an amount or
         additional amount, as the case may be, in such proportion as is
         appropriate to reflect the relative fault of the Indemnifying Party or
         parties on the one hand and the Indemnified Party on the other in
         connection with the statements or omissions which resulted in such
         losses, claims, demands or liabilities as well as any other relevant
         equitable considerations. The relative fault 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
         Indemnifying Party or parties on the one hand or the Indemnified Party
         on the other and the parties' relative, intent, knowledge, access to
         information and opportunity to correct or prevent such untrue statement
         or omission. The amount paid to an Indemnified Party as a result of the
         losses, claims, damages or liabilities referred to in the first
         sentence of this Section 6(g) shall be deemed to include any legal or
         other expenses reasonably incurred by such Indemnified Party in
         connection with investigating or defending any action or claim which is
         the subject of this Section 6. 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.

7.       COVENANTS RELATING TO RULE 145.

                  With a view to making available the benefits of certain rules
         and regulations of the Commission which may at any time permit the sale
         of securities of the Company to the public without registration after
         such time as a public market exists for the Common Stock of the
         Company, the Company agrees:

         (a) to make and keep public information available, as those terms are
         understood and defined in Rule 144 under the Securities Act, at all
         times after the date of the Closing;

         (b) to use all reasonable best efforts to then file with the
         Commission in a timely manner all reports and other documents required
         of the Company under the Securities Act and the Exchange Act, as
         amended; and

         (c) so long as a Holder owns any Registrable Securities, to furnish to
         the Holder forthwith upon request a written statement by the Company as
         to its compliance with the reporting requirements of said Rule 144 and
         of the Securities Act and the Exchange Act, a copy of the most recent
         annual or quarterly report of the Company, and such other reports and
         documents of the Company as a Holder 


                                      - 14 -



         may reasonably request in availing itself of any rule or regulation 
         of the Commission allowing a Holder to sell any such securities 
         without registration.

8.       OTHER REGISTRATION RIGHTS.

                   The Company represents and warrants that it has not granted
         any registration rights to any Person other than as described pursuant
         to the Merger Agreement. The Company shall not grant to any Person any
         registration rights inconsistent with any of those contained herein, so
         long as any of the registration rights under this Agreement remain in
         effect.

9.       MISCELLANEOUS.

         (a) SPECIFIC PERFORMANCE. The parties hereto acknowledge that there
         may be no adequate remedy at law if any party fails to perform any of
         its obligations hereunder and that each party may be irreparably harmed
         by any such failure, and accordingly agree that each party, in addition
         to any other remedy to which it may be entitled at law or in equity,
         shall be entitled to compel specific performance of the obligations of
         any other party under this Agreement in accordance with the terms and
         conditions of this Agreement.

         (b) NOTICES. All demands, requests, notices and other communications
         required or permitted to be given under this Agreement shall be in
         writing and shall be deemed to have been duly given if delivered
         personally or sent by United States first class mail, postage prepaid,
         and to the parties hereto at the following address or at such other
         address as any party hereto shall hereafter specify by notice to the
         other party hereto:

                   (i)     if to the Company, addressed to:

                           NEXTLINK Communications, Inc.
                           Bellevue, WA 98004
                           Attention: General Counsel
                           Facsimile No.: 425-519-8997

                  and

                           NEXTLINK Communications, Inc.
                           1730 Rhode Island Avenue, N.W.
                           Washington, D.C. 20036
                           Attention: Corporate Counsel
                           Facsimile No.: 202-721-0995

                  with a copy to:

                           Willkie Farr & Gallagher
                           787 Seventh Avenue
                           New York, New York 10019-6099


                                      - 15 -



                           Attention:  Bruce R. Kraus, Esq.
                           Facsimile No.: 212-728-8111

                  (ii)     if to the Stockholders' Representative, addressed to:

                           Thomas H. Jones
                           WNP Communications, Inc.
                           400 Balbion Drive
                           Earlysville, Virginia 22936-9680
                           Facsimile No.: 804-964-1021

                  (iii)    if to the Holders, addressed to them at the addresses
                           they have provided to the Company.

                           with a copy to:

                           Edwards & Angell, LLP
                           101 Federal Street
                           Boston, MA 02110
                           Attention:  Stephen O. Meredith, Esq.
                           Facsimile No.:  617-439-4170

     Except as otherwise provided herein, all such demands, requests, notices
and other communications shall be deemed to have been received on the date of
personal delivery thereof or on the third business day after the mailing
thereof.

         (c) GOVERNING LAW. This Agreement shall be governed by and construed
         in accordance with the internal laws of the State of New York, without
         regard to conflicts of law principles thereof.

         (d) HEADINGS. The descriptive headings of the several sections and
         paragraphs of this Agreement are inserted for convenience only, and do
         not constitute a part of this Agreement and shall not affect in any way
         the meaning or interpretation of this Agreement.

         (e) ENTIRE AGREEMENT; AMENDMENTS. This Agreement and the other
         writings referred to herein or delivered pursuant hereto which form a
         part hereof contain the entire understanding of the parties with
         respect to its subject matter. This Agreement supersedes all prior
         agreements and understandings between the parties with respect to its
         subject matter. Each Holder and the Stockholders' Representative agree
         that Section 9.14 of the Merger Agreement is hereby incorporated by
         reference into this Agreement, with the effect that all rights, duties
         and obligations of the Stockholders' Representative under said section
         are rights, duties and obligations of the Stockholders' Representative
         hereunder. This Agreement may be amended and the observance of any term
         of this Agreement may be waived (either generally or in a particular
         instance and either 


                                      - 16 -



         retroactively or prospectively) only by a written instrument duly 
         executed by the Company and the Stockholders' Representative on 
         behalf of the Holders. Each Holder of any Registrable Securities at 
         the time or thereafter outstanding shall be bound by an amendment or 
         waiver authorized by this Section 9(e), whether or not any such 
         Registrable Securities shall have been marked to indicate such 
         consent.

         (f) ASSIGNABILITY. This Agreement and all of the provisions hereof
         will be assigned, without the consent of the Company, by any Holder to,
         and shall inure to the benefit of, any purchaser, transferee or
         assignee of any Registrable Security to the extent of the securities so
         transferred or assigned, provided that the seller, transferor or
         assignor does not affirmatively restrict in writing the transfer or
         assignment of rights hereunder with respect to such securities.
         However, the Company shall not be required to recognize any such
         purchaser, transferee or assignee as a Holder under this Agreement
         unless and until either (i) such person becomes the holder of record of
         Series A Common Stock or (ii) the Company receives written notice of
         such purchase, transfer or assignment and a written agreement by the
         purchaser, assignee or transferee to be bound by the provisions of this
         Agreement.

         (g) COUNTERPARTS. This Agreement may be executed in two or more
         counterparts, each of which shall be deemed an original, but all of
         which together shall constitute one and the same instrument.

         (h) STOCK SPLITS, ETC. If the Company at any time subdivides (by any
         stock split, stock dividend, recapitalization or otherwise) its
         outstanding shares of Common Stock into a greater number of shares or
         if the outstanding shares of Common Stock shall be combined (by reverse
         stock split or otherwise) into a smaller number of shares, all numbers,
         percentages, computations and the like in this Agreement shall be
         deemed modified as necessary to give appropriate effect to such
         subdivision or combination.


                                      - 17 -



     IN WITNESS WHEREOF, the parties have executed this Registration Rights
Agreement as of the date first written above.

                                       NEXTLINK COMMUNICATIONS, INC.
  
                                       BY: /S/ MARGARET MARINO
                                          --------------------------------------
                                       NAME:  MARGARET MARINO
                                       TITLE: VICE PRESIDENT


                                       THOMAS H. JONES,
                                       AS STOCKHOLDERS' REPRESENTATIVE
                                       BY: /S/ THOMAS H. JONES
                                          --------------------------------------


                                      - 18 -