EXHIBIT 99.01

                             LETTER OF TRANSMITTAL
                                      for
                    12% Senior Subordinated Notes due 2007

                                      of
                       Hyperion Telecommunications, Inc.

                 Pursuant to the Exchange Offer in Respect of
        All of their Outstanding 12% Senior Subordinated Notes due 2007
                                      for
                  New 12% Senior Subordinated Notes due 2007

                Pursuant to the Prospectus dated        , 1999


 THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON
   , 1999, OR SUCH LATER DATE AND TIME TO WHICH THE EXCHANGE OFFER MAY BE
 EXTENDED (THE "EXPIRATION DATE"). TENDERS OF OLD NOTES MAY BE WITHDRAWN
 PRIOR TO THE EXPIRATION DATE.


           To: Bank of Montreal Trust Company (the "Exchange Agent")

By Registered or Certified Mail,          By Facsimile:
Hand or Overnight Courier:                Attention: Reorganization
Bank of Montreal Trust Company            Department:
Wall Street Plaza                         (212) 701-7636
88 Pine Street, 19th Floor
New York, NY 10005                        Confirm by Telephone:
Attention: Reorganization Department      (212) 701-7624

  Delivery of this Letter of Transmittal to an address, or transmission via
telegram, telex or facsimile, other than as set forth above will not
constitute a valid delivery. The instructions contained herein should be read
carefully before this Letter of Transmittal is completed.

  HOLDERS WHO WISH TO BE ELIGIBLE TO RECEIVE NEW NOTES FOR THEIR OLD NOTES
PURSUANT TO THE EXCHANGE OFFER MUST VALIDLY TENDER (AND NOT WITHDRAW) THEIR
OLD NOTES TO THE EXCHANGE AGENT PRIOR TO THE EXPIRATION DATE.

  By execution hereof, the undersigned acknowledges receipt of the Prospectus
(the "Prospectus"), dated        , 1999, of Hyperion Telecommunications, Inc.
(the "Issuer"), which, together with this Letter of Transmittal and the
Instructions hereto (the "Letter of Transmittal"), constitute the Issuer's
offer (the "Exchange Offer") to exchange $1,000 principal amount of its new
12% Senior Subordinated Notes due 2007 (the "New Notes") that have been
registered under the Securities Act of 1933, as amended (the "Securities
Act"), pursuant to a Registration Statement of which the Prospectus
constitutes a part, for each $1,000 principal amount of its outstanding 12%
Senior Subordinated Notes due 2007 originally issued on March 2, 1999 (the
"Old Notes"), upon the terms and subject to the conditions set forth in the
Prospectus.

  The Company has not entered into any arrangement or understanding with any
person to distribute the New Notes to be received in the Exchange Offer, is
acquiring the New Notes in its ordinary course of business and has no
arrangement or understanding with any person to participate in the
distribution of the New Notes to be received in the Exchange Offer.



  This Letter of Transmittal is to be used by Holders if: (i) certificates
representing Old Notes are to be physically delivered to the Exchange Agent
herewith by Holders; (ii) tender of Old Notes is to be made by book-entry
transfer to the Exchange Agent's account at The Depository Trust Company
("DTC") pursuant to the procedures set forth in the Prospectus under "The
Exchange Offer--Procedures for Tendering" by any financial institution that is
a participant in DTC and whose name appears on a security position listing as
the owner of Old Notes (such participants, acting on behalf of Holders (as
defined below), are referred to herein, together with such Holders, as "Acting
Holders"); or (iii) tender of Old Notes is to be made according to the
guaranteed delivery procedures set forth in the Prospectus under "The Exchange
Offer--Guaranteed Delivery Procedures." Delivery of documents to DTC does not
constitute delivery to the Exchange Agent.

  The term "Holder" with respect to the Exchange Offer means any person: (i)
in whose name Old Notes are registered on the books of the Issuer or any other
person who has obtained a properly completed bond power from the registered
Holder or (ii) whose Old Notes are held of record by DTC and who desires to
deliver such Old Notes by book entry transfer at DTC.

  The undersigned has completed, executed and delivered this Letter of
Transmittal to indicate the action the undersigned desires to take with
respect to the Exchange Offer. Holders who wish to tender their Old Notes must
complete this Letter of Transmittal in its entirety.

  All capitalized terms used herein and not defined herein shall have the
meaning ascribed to them in the Prospectus.

  The instructions included with this Letter of Transmittal must be followed.
Questions and requests for assistance or for additional copies of the
Prospectus, this Letter of Transmittal and the Notice of Guaranteed Delivery
may be directed to the Exchange Agent. See Instruction 9 herein.

  HOLDERS WHO WISH TO ACCEPT THE EXCHANGE OFFER AND TENDER THEIR OLD NOTES
MUST COMPLETE THIS LETTER OF TRANSMITTAL IN ITS ENTIRETY.

  List below the Old Notes to which this Letter of Transmittal relates. If the
space provided below is inadequate, list the certificate numbers and principal
amounts on a separately executed schedule and affix the schedule to this
Letter of Transmittal. Tenders of Old Notes will be accepted only in principal
amounts equal to $1,000 or integral multiples thereof.

                           DESCRIPTION OF OLD NOTES
- -------------------------------------------------------------------------------


Name(s) and
Address(es)
    of
 Holder(s)       Certificate          Aggregate
  (Please        Number(s)*        Principal Amount
fill in, if  (Attach signed list       Tendered
  blank)        if necessary)    (if less than all)**
- -----------------------------------------------------
                           
                 --------------    --------------
                 --------------    --------------
                 --------------    --------------
                 --------------    --------------
                 --------------    --------------
                 --------------    --------------
                 --------------    --------------
                 --------------    --------------
- -----------------------------------------------------
TOTAL PRINCIPAL AMOUNT OF OLD NOTES TENDERED
- -----------------------------------------------------


  * Need not be completed by Holders tendering by book-entry transfer.
 ** Need not be completed by Holders who wish to tender with respect to all
    Old Notes listed. See Instruction 2.

                                       2


[_]CHECK HERE IF TENDERED OLD NOTES ARE BEING DELIVERED BY DTC TO THE EXCHANGE
   AGENT'S ACCOUNT AT DTC AND COMPLETE THE FOLLOWING:

  Name of Tendering Institution: _____________________________________________

  DTC Book-Entry Account No.: ________________________________________________

  Transaction Code No.: ______________________________________________________

  If Holders desire to tender Old Notes pursuant to the Exchange Offer and (i)
certificates representing such Old Notes are not lost but are not immediately
available, (ii) time will not permit this Letter of Transmittal, certificates
representing such Old Notes or other required documents to reach the Exchange
Agent prior to the Expiration Date or (iii) the procedures for book-entry
transfer cannot be completed prior to the Expiration Date, such Holders may
effect a tender of such Old Notes in accordance with the guaranteed delivery
procedures set forth in the Prospectus under "The Exchange Offer--Guaranteed
Delivery Procedures."
- -------------------------------------------------------------------------------

[_]CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
   COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS
   THERETO.

  Name(s) of Holder(s) of Old Notes: _________________________________________

  Window Ticket No. (if any): ________________________________________________

  Date of Execution of Notice of Guaranteed Delivery: ________________________

  Name of Eligible Institution that Guaranteed Delivery: _____________________

  DTC Book-Entry Account No.: ________________________________________________

  If Delivered by Book-Entry Transfer, Name of Tendering Institution: ________

  Transaction Code No.: ______________________________________________________
- -------------------------------------------------------------------------------

[_]CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
   COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS
   THERETO.

  Name: ______________________________________________________________________

  Address: ___________________________________________________________________

              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY


                                       3


Ladies and Gentlemen:

  Subject to the terms of the Exchange Offer, the undersigned hereby tenders
to the Issuer the principal amount of Old Notes indicated above. Subject to
and effective upon the acceptance for exchange of the principal amount of Old
Notes tendered in accordance with this Letter of Transmittal, the undersigned
sells, assigns and transfers to, or upon the order of, the Issuer all right,
title and interest in and to the Old Notes tendered hereby. The undersigned
hereby irrevocably constitutes and appoints the Exchange Agent as its agent
and attorney-in-fact (with full knowledge that the Exchange Agent also acts as
the agent of the Issuer and as Trustee under the Indenture for the Old Notes
and the New Notes) with respect to the tendered Old Notes with full power of
substitution to (i) deliver certificates for such Old Notes to the Issuer, or
transfer ownership of such Old Notes on the account books maintained by DTC,
together, in either such case, with all accompanying evidences of transfer and
authenticity to, or upon the order of, the Issuer and (ii) present such Old
Notes for transfer on the books of the Issuer and receive all benefits and
otherwise exercise all rights of beneficial ownership of such Old Notes, all
in accordance with the terms of the Exchange Offer. The power of attorney
granted in this paragraph shall be deemed irrevocable and coupled with an
interest.

  The undersigned hereby represents and warrants that he or she has full power
and authority to tender, sell, assign and transfer the Old Notes tendered
hereby and that the Issuer will acquire good and unencumbered title thereto,
free and clear of all liens, restrictions, charges and encumbrances and not
subject to any adverse claim when the same are acquired by the Issuer. The
undersigned also acknowledges that this Exchange Offer is being made in
reliance upon an interpretation by the staff of the Securities and Exchange
Commission that the New Notes issued in exchange for the Old Notes pursuant to
the Exchange Offer may be offered for resale, resold and otherwise transferred
by the holders thereof (other than any such holder that is an "affiliate" of
the Issuer within the meaning of Rule 405 under the Securities Act) without
compliance with the registration and prospectus delivery provisions of the
Securities Act, provided that such New Notes are acquired in the ordinary
course of such holders' business and such holders have no arrangement with any
person to participate in the distribution of such New Notes. The undersigned
acknowledges that if he or she is participating in the Exchange Offer for the
purpose of distributing the New Notes, the undersigned must comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with a secondary resale transaction. If the undersigned is not a
broker-dealer, the undersigned represents that it is not engaged in, and does
not intend to engage in, a distribution of the New Notes. If the undersigned
is a broker-dealer that will receive New Notes for its own account in exchange
for Old Notes and the undersigned represents that such Old Notes were acquired
as a result of market-making activities or other trading activities and
acknowledges that it will deliver a prospectus in connection with any resale
of such New Notes, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.

  The undersigned represents that (i) the New Notes acquired pursuant to the
Exchange Offer are being obtained in the ordinary course of such Holder's
business, (ii) such Holder has no arrangements with any person to participate
in the distribution of such New Notes and (iii) such Holder is not an
"affiliate," as defined under Rule 405 of the Securities Act, of the Issuer
or, if such Holder is an affiliate, that such Holder will comply with the
registration and prospectus delivery requirements of the Securities Act to the
extent applicable.

  The undersigned will, upon request, execute and deliver any additional
documents deemed by the Exchange Agent or the Issuer to be necessary or
desirable to complete the assignment and transfer of the Old Notes tendered
hereby.

  For purposes of the Exchange Offer, the Issuer shall be deemed to have
accepted validly tendered Old Notes when, as and if the Issuer has given oral
or written notice thereof to the Exchange Agent. If any tendered Old Notes are
not accepted for exchange pursuant to the Exchange Offer for any reason,
certificates for any such unaccepted Old Notes will be terminated (except as
noted below with respect to tenders through DTC), without expense, to the
undersigned at the address shown below or at a different address shown below
or at a different address as may be indicated under "Special Issuance
Instructions" as soon as practicable following the Expiration Date.

                                       4


  All authority conferred or agreed to be conferred by this Letter of
Transmittal shall survive the death, incapacity or dissolution of the
undersigned and every obligation under this Letter of Transmittal shall be
binding upon the undersigned's heirs, personal representatives, successors and
assigns.

  The undersigned understands that tenders of Old Notes pursuant to the
procedures described under the caption "The Exchange Offer--Procedures for
Tendering" in the Prospectus and in the instructions hereto will constitute a
binding agreement between the undersigned and the Issuer upon the terms and
subject to the conditions of the Exchange Offer.

  Unless otherwise indicated under "Special Issuance Instructions," please
issue the certificates representing the New Notes issued in exchange for the
Old Notes accepted for exchange and return any Old Notes not tendered or not
exchanged, in the name(s) of the undersigned (or in such event in the case of
Old Notes tendered by DTC, by credit to the account at DTC). Similarly, unless
otherwise indicated under "Special Delivery Instructions," please send the
certificates representing the New Notes issued in exchange for the Old Notes
accepted for exchange and any certificates for Old Notes not tendered or not
exchanged (and accompanying documents, as appropriate) to the undersigned at
the address shown below the undersigned's signatures, unless, in either event,
tender is being made through DTC. In the event that both "Special Issuance
Instructions" and "Special Delivery Instructions" are completed, please issue
the certificates representing the New Notes issued in exchange for the Old
Notes accepted for exchange and return any Old Notes not tendered or not
exchanged in the name(s) of, and send said certificates to, the person(s) so
indicated. The undersigned recognizes that the Issuer has no obligation
pursuant to the "Special Issuance Instructions" and "Special Delivery
Instructions" to transfer any Old Notes from the name of the registered
holder(s) thereof if the Issuer does not accept for exchange any of the Old
Notes so tendered.

                                       5


                               PLEASE SIGN HERE
       (TO BE COMPLETED BY ALL TENDERING HOLDERS OF OLD NOTES REGARDLESS
         OF WHETHER OLD NOTES ARE BEING PHYSICALLY DELIVERED HEREWITH)

  This Letter of Transmittal must be signed by the Holder(s) of Old Notes
exactly as their name(s) appear(s) on certificate(s) for Old Notes or, if
tendered by a participant in DTC, exactly as such participant's name appears
on a security position listing as the owner of Old Notes, or by person(s)
authorized to become registered Holder(s) by endorsements and documents
transmitted with this Letter of Transmittal. If signature is by a trustee,
executor, administrator, guardian, attorney-in-fact, officer or other person
acting in a fiduciary or representative capacity, such person must set forth
his or her full title below under "Capacity" and submit evidence satisfactory
to the Issuer of such person's authority to so act. See Instruction 3 herein.

If the signature appearing below is not of the registered Holder(s) of the Old
Notes, then the registered Holder(s) must sign a valid proxy.


 X __________________________________     Date: ______________________________


 X __________________________________     Date: ______________________________


     Signature(s) of Holder(s) or
         Authorized Signatory



 Name(s): ___________________________     Address: ___________________________


 ____________________________________     ____________________________________
            (Please Print)                        (Including Zip Code)

 Capacity: __________________________     Area Code and Telephone No.: _______

 Social Security No.: _______________

                SIGNATURE GUARANTEE (See Instruction 3 herein)
       Certain Signatures Must be Guaranteed by an Eligible Institution

 _____________________________________________________________________________
            (Name of Eligible Institution Guaranteeing Signatures)

 _____________________________________________________________________________
              (Address (including zip code) and Telephone Number
                        (including area code) of Firm)

 _____________________________________________________________________________
                            (Authorized Signatures)

 _____________________________________________________________________________
                                (Printed Name)

 _____________________________________________________________________________
                                    (Title)

 Date: ______________________________

                                       6


    SPECIAL ISSUANCE INSTRUCTIONS
   (See Instruction 3 and 4 herein)

   To be completed ONLY if
 certificates for Old Notes in a
 principal amount not tendered are
 to be issued in the name of, or the
 New Notes issued pursuant to the
 Exchange Offer are to be issued to
 the order of, someone other than
 the person or persons whose
 signature(s) appear(s) within this
 Letter of Transmittal or issued to
 an address different from that
 shown in the box entitled
 "Description of Old Notes" within
 this Letter of Transmittal, or if
 Old Notes tendered by book-entry
 transfer that are not accepted for
 purchase are to be credited to an
 account maintained at DTC.

 Name: ______________________________
            (Please Print)

 Address: ___________________________
            (Please Print)

 Zip Code: __________________________

 ____________________________________
      Taxpayer Identification or
        Social Security Number

    SPECIAL DELIVERY INSTRUCTIONS
  (See instructions 3 and 4 herein)

   To be completed ONLY if
 certificates for Old Notes in a
 principal amount not tendered or
 not accepted for purchase or the
 New Notes issued pursuant to the
 Exchange Offer are to be sent to
 someone other than the person or
 persons whose signature(s)
 appear(s) within this Letter of
 Transmittal or to an address
 different from that shown in the
 box entitled "Description of Old
 Notes" within this Letter of
 Transmittal.

 Name: ______________________________
            (Please Print)

 Address: ___________________________
            (Please Print)

 Zip Code: __________________________


                                       7


                    TO BE COMPLETED BY ALL TENDERING HOLDERS
                              (SEE INSTRUCTION 5)

                PAYOR'S NAME: HYPERION TELECOMMUNICATIONS, INC.


 SUBSTITUTE                Part 1--PLEASE PROVIDE YOUR      TIN:------------
 Form W-9                  TIN IN THE BOX AT RIGHT AND        Social security
 Department of             CERTIFY BY SIGNING AND DATING           number
 the Treasury              BELOW.                           OR
 Internal
 Revenue Service

                                                             ------------------
                                                                  Employer
                                                               identification
                                                                   number

                          -----------------------------------------------------

 Payer's Request for       Part 2--Tin Applied For [_]
 Taxpayer Identification   Payor's Request for Taxpayer Identification Number
 Number (TIN)                 ("TIN") and Certification

                           (1) the number shown on this form is my correct
                               Taxpayer Identification Number (or I am
                               waiting for a number to be issued to me).
                           (2) I am not subject to backup withholding either
                               because: (a) I am exempt from backup
                               withholding, or (b) I have not been notified
                               by the Internal Revenue Service (the "IRS")
                               that I am subject to backup withholding as a
                               result of a failure to report all interest or
                               dividends, or (c) the IRS has notified me that
                               I am no longer subject to backup withholding,
                               and
                           (3) any other information provided on this form is
                               true and correct.
                          -----------------------------------------------------
                           You must cross out item (2) of the above
                           certification if you have been notified by the IRS
                           that you are subject to backup withholding because
                           of underreporting of interest or dividends on your
                           tax return and you have not been notified by the
                           IRS that you are no longer subject to backup
                           withholding.

                           SIGNATURE _________________  DATE _________________


YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU CHECKED THE BOX IN PART 2 OF
                              SUBSTITUTE FORM W-9


            CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

   I certify under penalties of perjury that a Taxpayer Identification
 Number has not been issued to me, and either (a) I have mailed or
 delivered an application to receive a Taxpayer Identification Number to
 the appropriate Internal Revenue Service Center or Social Security
 Administrative Office or (b) I intend to mail or deliver an application in
 the near future. I understand that if I do not provide a Taxpayer
 Identification Number by the time of the exchange, 31 percent of all
 reportable payments made to me thereafter will be withheld until I provide
 a number.

 -------------------------------------    -----------------------------------
               Signature                                  Date


                                       8


                                 INSTRUCTIONS

        Forming Part of the Terms and Conditions of the Exchange Offer

  1. Delivery of this Letter of Transmittal and Old Notes. The certificates
for the tendered Old Notes (or a confirmation of a book-entry into the
Exchange Agent's account at DTC of all Old Notes delivered electronically), as
well as a properly completed and duly executed copy of this Letter of
Transmittal or facsimile hereof and any other documents required by this
Letter of Transmittal must be received by the Exchange Agent at its address
set forth herein prior to 5:00 p.m., New York City time, on the Expiration
Date. The method of delivery of the tendered Old Notes, this Letter of
Transmittal and all other required documents to the Exchange Agent is at the
election and risk of the Holder and, except as otherwise provided below, the
delivery will be deemed made only when actually received by the Exchange
Agent. Instead of delivery by mail, it is recommended that the Holder use an
overnight or hand delivery service. In all cases, sufficient time should be
allowed to assume timely delivery. No Letter of Transmittal or Old Notes
should be sent to the Issuer.

  Holders who wish to tender their Old Notes and (i) whose Old Notes are not
immediately available or (ii) who cannot deliver their Old Notes, this Letter
of Transmittal or any other documents required hereby to the Exchange Agent
prior to the Expiration Date must tender their Old Notes and follow the
guaranteed delivery procedures set forth in the Prospectus. Pursuant to such
procedures: (i) such tender must be made by or through an Eligible
Institution; (ii) prior to the Expiration Date, the Exchange Agent must have
received from the Eligible Institution a properly completed and duly executed
Notice of Guaranteed Delivery (by facsimile transmission, mail or hand
delivery) setting forth the name and address of the Holder of the Old Notes,
the certificate number or numbers of such Old Notes and the principal amount
of Old Notes tendered, stating that the tender is being made thereby and
guaranteeing that, within three business days after the Expiration Date, this
Letter of Transmittal (or facsimile thereof) together with the certificate(s)
representing the Old Notes (or a confirmation of electronic delivery of book-
entry delivery into the Exchange Agent's account at DTC) and any of the
required documents will be deposited by the Eligible Institution with the
Exchange Agent; and (iii) such properly completed and executed Letter of
Transmittal (or facsimile hereof), as well as all other documents required by
this Letter of Transmittal and the certificate(s) representing all tendered
Old Notes in proper form for transfer (or a confirmation of electronic mail
delivery of book-entry delivery into the Exchange Agent's account at DTC),
must be received by the Exchange Agent within three business days after the
Expiration Date, all as provided in the Prospectus under the caption
"Guaranteed Delivery Procedures." Any Holder of Old Notes who wishes to tender
his Old Notes pursuant to the guaranteed delivery procedures described above
must ensure that the Exchange Agent receives the Notice of Guaranteed Delivery
prior to 5:00 p.m., New York City time, on the Expiration Date.

  All questions as to the validity, form, eligibility (including time of
receipt), acceptance and withdrawal of tendered Old Notes will be determined
by the Issuer in its sole discretion, which determination will be final and
binding. The Issuer reserves the absolute right to reject any and all Old
Notes not properly tendered or any Old Notes the Issuer's acceptance of which
would, in the opinion of counsel for the Issuer, be unlawful. The Issuer also
reserves the right to waive any irregularities or conditions of tender as to
particular Old Notes. The Issuer's interpretation of the terms and conditions
of the Exchange Offer (including the instructions in this Letter of
Transmittal) will be final and binding on all parties. Unless waived, any
defects or irregularities in connection with tenders of Old Notes must be
cured within such time as the Issuer shall determine. Neither the Issuer, the
Exchange Agent nor any other person shall be under any duty to give
notification of defects or irregularities with respect to tenders of Old
Notes, nor shall any of them incur any liability for failure to give such
notification. Tenders of Old Notes will not be deemed to have been made until
such defects or irregularities have been cured or waived. Any Old Notes
received by the Exchange Agent that are not properly tendered and as to which
the defects or irregularities have not been cured or waived will be returned
without cost by the Exchange Agent to the tendering Holders of Old Notes,
unless otherwise provided in this Letter of Transmittal, as soon as
practicable following the Expiration Date.

  2. Partial Tenders. Tenders of Old Notes will be accepted in all
denominations of $1,000 and integral multiples in excess thereof. If less than
the entire principal amount of any Old Notes is tendered, the tendering

                                       9


Holders should fill in the principal amount tendered in the third column of
the chart entitled "Description of Old Notes." The entire principal amount of
Old Notes delivered to the Exchange Agent will be deemed to have been tendered
unless otherwise indicated. If the entire principal amount of all Old Notes is
not tendered, Old Notes for the principal amount of Old Notes delivered to the
Exchange Agent will be deemed to have been tendered unless otherwise
indicated. If the entire principal amount of all Old Notes is not tendered,
Old Notes for the principal amount of Old Notes not tendered and a certificate
or certificates representing New Notes issued in exchange of any Old Notes
accepted will be sent to the Holder at his or her registered address, unless a
different address is provided in the appropriate box on this Letter of
Transmittal or unless tender is made through DTC, promptly after the Old Notes
are accepted for exchange.

  3. Signatures on the Letter of Transmittal; Bond Powers and Endorsements;
Guarantee of Signatures. If this Letter of Transmittal (or facsimile hereof)
is signed by the registered Holder(s) of the Old Notes tendered hereby, the
signature must correspond with the name(s) as written on the face of the Old
Notes without alteration, enlargement or any change whatsoever.

  If this Letter of Transmittal (or facsimile hereof) is signed by the
registered Holder(s) of Old Notes tendered and the certificate(s) for New
Notes issued in exchange thereof is to be issued (or any untendered principal
amount of Old Notes is to be reissued) to the registered Holder, such Holder
need not and should not endorse any tendered Old Note, nor provide a separate
bond power. In any other case, such Holder must either properly endorse the
Old Notes tendered or transmit a properly completed separate bond power with
this Letter of Transmittal, with the signatures on the endorsement or bond
power guaranteed by an Eligible Institution.

  If this Letter of Transmittal (or facsimile hereof) or any Old Notes or bond
powers are signed by trustees, executors, administrators, guardians,
attorneys-in-fact, or officers of corporations or others acting in a fiduciary
or representative capacity, such persons should so indicate when signing, and
unless waived by the Issuer, evidence satisfactory to the Issuer of their
authority so to act must be submitted with this Letter of Transmittal.

  Endorsements on Old Notes or signatures on bond powers required by this
Instruction 3 must be guaranteed by an Eligible Institution.

  Signatures on this Letter of Transmittal (or facsimile hereof) must be
guaranteed by an Eligible Institution unless the Old Notes tendered pursuant
thereto are tendered (i) by a registered Holder (including any participant in
DTC whose name appears on a security position listing as the owner of Old
Notes) who has not completed the box set forth herein entitled "Special
Issuance Instructions" or the box entitled "Special Delivery Instructions" or
(ii) for the account of an Eligible Institution.

  4. Special Issuance and Delivery Instructions. Tendering Holders should
indicate, in the applicable spaces, the name and address to which New Notes or
substitute Old Notes for principal amounts not tendered or not accepted for
exchange are to be issued or sent, if different from the name and address of
the person signing this Letter of Transmittal (or in the case of tender of the
Old Notes through DTC, if different from DTC). In the case of issuance in a
different name, the taxpayer identification or social security number of the
person named must also be indicated.

  5. Tax Identification Number. Under the federal income tax laws, payments
that may be made by the Company on account of New Notes issued pursuant to the
Exchange Offer may be subject to backup withholding at the rate of 31%. In
order to avoid such backup withholding, each tendering holder should complete
and sign the Substitute Form W-9 included in this Letter of Transmittal and
either (a) provide the correct taxpayer identification number ("TIN") and
certify, under penalties of perjury, that the TIN provided is correct and that
(i) the holder has not been notified by the Internal Revenue Service (the
"IRS") that the holder is subject to backup withholding as a result of failure
to report all interest or dividends or (ii) the IRS has notified the holder
that the holder is no longer subject to backup withholding; or (b) provide an
adequate basis for exemption. If the tendering holder has not been issued a
TIN and has applied for one, or intends to apply for one in the near future,
such holder should write "Applied For" in the space provided for the TIN in
Part I of the Substitute Form W-9,

                                      10


sign and date the Substitute Form W-9 and sign the Certificate of Payee
Awaiting Taxpayer Identification Number. If "Applied For" is written in Part
I, the Company (or the Transfer Agent with respect to the New Notes or a
broker or custodian) may still withhold 31% of the amount of any payments made
on account of the New Notes until the holder furnishes the Company or the
Transfer Agent with respect to the New Notes, broker or custodian with its
TIN. In general, if a holder is an individual, the taxpayer identification
number is the Social Security number of such individual. If the Exchange Agent
or the Company is not provided with the correct TIN, the holder may be subject
to a $50 penalty imposed by the IRS. Certain holders (including, among others,
all corporations and certain foreign individuals) are not subject to these
backup withholding and reporting requirements. In order for a foreign
individual to qualify as an exempt recipient, such holder must submit a
statement (generally, IRS Form W-8), signed under penalties of perjury,
attesting to that individual's exempt status. Such statements can be obtained
from the Exchange Agent.

  Failure to complete the Substitute Form W-9 will not, by itself, cause Old
Notes to be deemed invalidly tendered, but may require the Company or the
Transfer Agent with respect to the New Notes, broker or custodian to withhold
31% of the amount of any payments made on account of the New Notes. Backup
withholding is not an additional federal income tax. Rather, the federal
income tax liability of a person subject to backup withholding will be reduced
by the amount of tax withheld. If withholding results in an overpayment of
taxes, a refund may be obtained from the IRS.

  6. Transfer Taxes. The Issuer will pay all transfer taxes, if any,
applicable to the exchange of Old Notes pursuant to the Exchange Offer. If,
however, certificates representing New Notes or Old Notes for principal
amounts not tendered or accepted for exchange are to be delivered to, or are
to be registered or issued in the name of, any person other than the
registered Holder of the Old Notes tendered hereby, or if tendered Old Notes
are registered in the name of any person other than the person signing this
Letter of Transmittal, or if a transfer tax is imposed for any reason other
than the exchange of Old Notes pursuant to the Exchange Offer, then the amount
of any such transfer taxes (whether imposed on the registered Holder or any
other person) will be payable by the tendering Holder. If satisfactory
evidence of payment of such taxes or exemption therefrom is not submitted with
this Letter of Transmittal, the amount of such transfer taxes will be billed
directly to such tendering Holder.

  Except as provided in this Instruction 6, it will not be necessary for
transfer tax stamps to be affixed to the Old Notes listed in this Letter of
Transmittal.

  7. Waiver of Conditions. The Issuer reserves the absolute right to amend,
waive or modify specified conditions in the Exchange Offer in the case of any
Old Notes tendered.

  8. Mutilated, Lost, Stolen or Destroyed Old Notes. Any tendering Holder
whose Old Notes have been mutilated, lost, stolen or destroyed should contact
the Exchange Agent at the address indicated herein for further instruction.

  9. Requests for Assistance or Additional Copies. Questions and requests for
assistance and requests for additional copies of the Prospectus or this Letter
of Transmittal may be directed to the Exchange Agent at the address specified
in the Prospectus. Holders may also contact their broker, dealer, commercial
bank, trust company or other nominee for assistance concerning the Exchange
Offer.


                                      11


                         Notice of Guaranteed Delivery
                                 for Tender of
                    12% Senior Subordinated Notes due 2007
                               (the "Old Notes")
                                      of
                       HYPERION TELECOMMUNICATIONS, INC.

  This form, or one substantially equivalent hereto, must be used to tender
Old Notes pursuant to the Exchange Offer described in the Prospectus dated
       , 1999 (the "Prospectus") of Hyperion Telecommunications, Inc. (the
"Company"), if a holder of Old Notes cannot deliver a Letter of Transmittal to
the Exchange Agent listed below (the "Exchange Agent") or cannot either
deliver the Old Notes to be tendered or complete the procedure for book-entry
transfer prior to 5:00 P.M., New York City time, on        , 1999 or such
later date and time to which the Exchange Offer may be extended (the
"Expiration Date"). This form, or one substantially equivalent hereto, must be
delivered by hand or sent by facsimile transmission or mail to the Exchange
Agent, and must be received by the Exchange Agent on or prior to the
Expiration Date. See "The Exchange Offer--Procedures for Tendering" in the
Prospectus. Capitalized terms used herein and not defined herein shall have
the meanings ascribed thereto in the Prospectus.

              To: Bank of Montreal Trust Company, Exchange Agent

                    By Mail, by Hand or Overnight Delivery:

                        Bank of Montreal Trust Company
                               Wall Street Plaza
                          88 Pine Street, 19th Floor
                              New York, NY 10005
                        Attn: Reorganization Department

                                 By Facsimile:
                     Attention: Reorganization Department
                                (212) 701-7636

                             Confirm by Telephone:
                                (212) 701-7624

  Delivery of this instrument to an address other than as set forth above or
transmission of instructions via facsimile other than as set forth above does
not constitute a valid delivery.


Ladies and Gentlemen:

  The undersigned hereby represents that he or she is the holder of the Old
Notes indicated below and that the Letter of Transmittal cannot be delivered
to the Exchange Agent and/or either the certificates representing such Old
Notes cannot be delivered to the Exchange Agent or the procedure for book-
entry transfer cannot be completed prior to the Expiration Date. The
undersigned hereby tenders the Old Notes indicated below pursuant to the
guaranteed delivery procedures set forth in the Prospectus and the Letter of
Transmittal, receipt of which is hereby acknowledged.

Name(s) of Tender Holder(s): __________________________________________________

_______________________________________________________________________________
                             Please Print or Type

_______________________________________________________________________________
                                   Signature

Address(es): __________________________________________________________________

   ____________________________________________________________________________

Telephone Number(s): __________________________________________________________

Name(s) in which Old Notes are registered: ____________________________________

_______________________________________________________________________________


 Certificate No(s). (if applicable)*          Principal Amount Transferred
- -------------------------------------------------------------------------------

 ____________________________________     ____________________________________

 ____________________________________     ____________________________________

 ____________________________________     ____________________________________

 ____________________________________     ____________________________________

 ____________________________________     ____________________________________

*Need not be completed by book-entry holders.

                                       2



        GUARANTEE OF DELIVERY (Not to be used for signature guarantee)

   The undersigned, a member firm of a registered national securities
 exchange or of the National Association of Securities Dealers, Inc., a
 commercial bank or trust company having an office or a correspondent in the
 United States or an "eligible guarantor institution" within the meaning of
 Rule 17Ad-15 under the Securities Exchange Act of 1934, as amended, hereby
 guarantees that the undersigned will deliver to the Exchange Agent the
 certificates representing the Old Notes being tendered hereby in proper form
 for transfer (or a confirmation of book-entry transfer of such Old Notes,
 into the Exchange Agent's account at the book-entry transfer facility) with
 delivery of a properly completed and duly executed Letter of Transmittal (or
 facsimile thereof), with any required signature guarantees and any other
 required documents, all within three business days after the Expiration
 Date.

 Name of Firm _______________________     ____________________________________
                                                  Authorized Signature


 Address ____________________________     Name ______________________________
                                                  Please Print or Type

 ____________________________________     Title _____________________________
               Zip Code

 Telephone No. _____________________      Dated _____________________________

  The institution that completes this form must communicate the guarantee to
the Exchange Agent and must deliver the certificates representing any Old
Notes (or a confirmation of book-entry transfer of such Old Notes into the
Exchange Agent's account at the book-entry transfer facility) and the Letter
of Transmittal to the Exchange Agent within the time period shown herein.
Failure to do so could result in a financial loss to such institution.

                                       3