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                             LETTER OF TRANSMITTAL

                            TIME WARNER TELECOM INC.
                               OFFER TO EXCHANGE

 ALL OUTSTANDING 10 1/8% SENIOR NOTES DUE 2011 ($400,000,000 PRINCIPAL AMOUNT)

                                      FOR

         10 1/8% SENIOR NOTES DUE 2011 ($400,000,000 PRINCIPAL AMOUNT)
          WHICH HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933

       THE EXCHANGE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M.,
         NEW YORK CITY TIME, ON --, 2001, UNLESS THE OFFER IS EXTENDED.

                         To:  -- (AS "EXCHANGE AGENT")


                                                              
By Registered or Certified Mail:                                    By Overnight Courier or By Hand:
               --                                                                  --
         Attention: --                                                       Attention: --
                           By Facsimile (for Eligible Institutions Only):
                                                 --

                                       Confirm by Telephone:
                                                 --


     DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR
TRANSMISSION OF INSTRUCTIONS VIA A FACSIMILE NUMBER OTHER THAN THE ONES LISTED
ABOVE WILL NOT CONSTITUTE A VALID DELIVERY. THE INSTRUCTIONS ACCOMPANYING THIS
LETTER OF TRANSMITTAL SHOULD BE READ CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL
IS COMPLETED.

     The undersigned hereby acknowledges receipt of the Prospectus dated --,
2001 (the "Prospectus"), of Time Warner Telecom Inc. ("Time Warner Telecom") and
this Letter of Transmittal, which together constitute Time Warner Telecom's
offer (the "Exchange Offer") to exchange each $1,000 principal amount of its
10 1/8% Senior Notes due 2011 (collectively, the "New Notes"), which have been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
pursuant to a Registration Statement of which the Prospectus is a part, for each
$1,000 principal amount of its outstanding 10 1/8% Senior Notes due 2011
(collectively, the "Old Notes"). The term "Expiration Date" shall mean 5:00
p.m., New York City time, on --, 2001, unless Time Warner Telecom, in its
reasonable judgment, extends the Exchange Offer, in which case the term shall
mean the latest date and time to which the Exchange Offer is extended.

     YOUR BANK OR BROKER CAN ASSIST YOU IN COMPLETING THIS FORM. THE
INSTRUCTIONS INCLUDED WITH THIS LETTER OF TRANSMITTAL MUST BE FOLLOWED.
QUESTIONS AND REQUESTS FOR ASSISTANCE OR FOR ADDITIONAL COPIES OF THE PROSPECTUS
AND THIS LETTER OF TRANSMITTAL MAY BE DIRECTED TO THE EXCHANGE AGENT.
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     List below the notes to which this Letter of Transmittal relates. If the
space indicated below is inadequate, the Certificate or Registration Numbers and
Principal Amounts should be listed on a separately signed schedule affixed
hereto.

          DESCRIPTION OF 10 1/8% SENIOR NOTES DUE 2011 TENDERED HEREBY
- --------------------------------------------------------------------------------



                                                                                    AGGREGATE
                                                                                    PRINCIPAL
                                                                 CERTIFICATE OR       AMOUNT         PRINCIPAL
                                                                  REGISTRATION    REPRESENTED BY       AMOUNT
NAME(S) AND ADDRESS(ES) OF REGISTERED OWNER(S) (PLEASE FILL IN)     NUMBERS*        OLD NOTES        TENDERED**
- -------------------------------------------------------------
                                                                                         

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

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

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

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

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

                                                                     Total
- -------------------------------------------------------------
   * Need not be completed by book-entry Holders.
  ** Unless otherwise indicated, the Holder will be deemed to have tendered the full aggregate principal amount
     represented by such Old Notes. All tenders must be in integral multiples of $1,000.


     This Letter of Transmittal is to be used (i) if certificates of Old Notes
are to be forwarded herewith or (ii) tender of the Old Notes is to be made
according to the guaranteed delivery procedures described in the Prospectus
under the caption "The Exchange Offer -- Guaranteed Delivery Procedures." See
Instruction 2. Delivery of documents to a book-entry transfer facility does not
constitute delivery to the Exchange Agent.

     The term "Holder" with respect to the Exchange Offer means any person in
whose name Old Notes are registered on the books of Time Warner Telecom or any
other person who has obtained a properly completed bond power from the
registered holder. 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 in its entirety.

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[ ]  CHECK HERE IF TENDERED OLD NOTES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER
     MADE TO AN ACCOUNT MAINTAINED BY THE EXCHANGE AGENT WITH THE DEPOSITORY
     TRUST COMPANY (THE "DEPOSITORY") AND COMPLETE THE FOLLOWING:

          NAME OF TENDERING INSTITUTION

          ACCOUNT NUMBER

          TRANSACTION CODE NUMBER

     Holders whose Old Notes are not immediately available or who cannot deliver
their Old Notes and all other documents required hereby to the Exchange Agent on
or prior to the Expiration Date must tender their Old Notes according to the
guaranteed delivery procedure set forth in the Prospectus under the caption "The
Exchange Offer -- Guaranteed Delivery Procedures." See Instruction 2.

[ ]  CHECK HERE IF TENDERED OLD NOTES ARE BEING DELIVERED PURSUANT TO A NOTICE
     OF GUARANTEED DELIVERY AND COMPLETE THE FOLLOWING:

          NAME OF REGISTERED HOLDER(S)

          NAME OF ELIGIBLE INSTITUTION THAT
        GUARANTEED DELIVERY

IF DELIVERY BY BOOK-ENTRY TRANSFER:

          ACCOUNT NUMBER

          TRANSACTION CODE NUMBER

[ ]  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

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              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY

LADIES AND GENTLEMEN:

     Upon the terms and subject to the conditions of the Exchange Offer, the
undersigned hereby tenders to Time Warner Telecom the principal amount of the
Old Notes indicated above. Subject to, and effective upon, the acceptance for
exchange of such Old Notes tendered hereby, the undersigned hereby exchanges,
assigns and transfers to, or upon the order of, Time Warner Telecom, all right,
title and interest in and to such Old Notes as are being tendered hereby,
including all rights to accrued and unpaid interest thereon as of the Expiration
Date. The undersigned hereby irrevocably constitutes and appoints the Exchange
Agent the true and lawful agent and attorney-in-fact of the undersigned (with
full knowledge that said Exchange Agent acts as the agent of Time Warner Telecom
in connection with the Exchange Offer) to cause the Old Notes to be assigned,
transferred and exchanged. The undersigned represents and warrants that it has
full power and authority to tender, exchange, assign and transfer the Old Notes
and to acquire New Notes issuable upon the exchange of such tendered Old Notes,
and that when the same are accepted for exchange, Time Warner Telecom will
acquire good and unencumbered title to the tendered Old Notes, free and clear of
all liens, restrictions, charges and encumbrances and not subject to any adverse
claim.

     The undersigned represents to Time Warner Telecom that (i) the New Notes
acquired pursuant to the Exchange Offer are being obtained in the ordinary
course of business of the person receiving such New Notes, whether or not such
person is the undersigned, and (ii) neither the undersigned nor any such other
person is engaged or intends to engage in, or has an arrangement or
understanding with any person to participate in, the distribution of such New
Notes. If the undersigned or the person receiving the New Notes covered hereby
is a broker-dealer that is receiving the New Notes for its own account in
exchange for Old Notes that were acquired as a result of market-making
activities or other trading activities, the undersigned acknowledges that it or
such other person will deliver a prospectus in connection with any resale of
such New Notes; however, by so acknowledging and by delivering a prospectus, the
undersigned will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act. The undersigned and any such other person
acknowledge that, if they are participating in the Exchange Offer for the
purpose of distributing the New Notes, (i) they must comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with the resale transaction and (ii) failure to comply with such
requirements in such instance could result in the undersigned or any such other
person incurring liability under the Securities Act for which such persons are
not indemnified by Time Warner Telecom. If the undersigned or the person
receiving the New Notes covered by this letter is an affiliate (as defined under
Rule 405 of the Securities Act) of Time Warner Telecom, the undersigned
represents to Time Warner Telecom that the undersigned understands and
acknowledges that such New Notes may not be offered for resale, resold or
otherwise transferred by the undersigned or such other person without
registration under the Securities Act or an exemption therefrom.

     The undersigned also warrants that it will, upon request, execute and
deliver any additional documents deemed by the Exchange Agent or Time Warner
Telecom to be necessary or desirable to complete the exchange, assignment and
transfer of tendered Old Notes or transfer ownership of such Old Notes on the
account books maintained by a book-entry transfer facility.

     The Exchange Offer is subject to certain conditions set forth in the
Prospectus under the caption "The Exchange Offer -- Conditions." The undersigned
recognizes that as a result of these conditions (which may be waived, in whole
or in part, by Time Warner Telecom), as more particularly set forth in the
Prospectus, Time Warner Telecom may not be required to exchange any of the Old
Notes tendered hereby and, in such event, the Old Notes not exchanged will be
returned to the undersigned at the address shown below the signature of the
undersigned.

     All authority herein conferred or agreed to be conferred shall survive the
death or incapacity of the undersigned and every obligation of the undersigned
hereunder shall be binding upon the heirs, personal representatives, successors
and assigns of the undersigned. Tendered Old Notes may be withdrawn at any time
prior to the Expiration Date.

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     Unless otherwise indicated in the box entitled "Special Registration
Instructions" or the box entitled "Special Delivery Instructions" in this Letter
of Transmittal, certificates for all New Notes delivered in exchange for
tendered Old Notes, and any Old Notes delivered herewith but not exchanged, will
be registered in the name of the undersigned and shall be delivered to the
undersigned at the address shown below the signature of the undersigned. If a
New Note is to be issued to a person other than the person(s) signing this
Letter of Transmittal, or if a New Note is to be mailed to someone other than
the person(s) signing this Letter of Transmittal or to the person(s) signing
this Letter of Transmittal at an address different than the address shown on
this Letter of Transmittal, the appropriate boxes of this Letter of Transmittal
should be completed. If Old Notes are surrendered by Holder(s) that have
completed either the box entitled "Special Registration Instructions" or the box
entitled "Special Delivery Instructions" in this Letter of Transmittal,
signature(s) on this Letter of Transmittal must be guaranteed by an Eligible
Institution (defined in Instruction 2).

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

                       SPECIAL REGISTRATION INSTRUCTIONS

To be completed ONLY if the New Notes are to be issued in the name of someone
other than the undersigned.
Name:
- ------------------------------------------------

Address:
- ----------------------------------------------

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

Book-Entry Transfer Facility Account:

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

Employer Identification or Social Security Number:

- ---------------------------------------------------------
                             (PLEASE PRINT OR TYPE)
          -----------------------------------------------------------
          -----------------------------------------------------------

                         SPECIAL DELIVERY INSTRUCTIONS

To be completed ONLY if the New Notes are to be sent to someone other than the
undersigned, or to the undersigned at an address other than that shown under
"Description of 10 1/8% Senior Notes due 2011 Tendered Hereby."

Name:
- ------------------------------------------------

Address:
- ----------------------------------------------

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

Employer Identification or Social Security Number:

- ---------------------------------------------------------
                             (PLEASE PRINT OR TYPE)
- -----------------------------------------------------------

- --------------------------------------------------------------------------------
                  REGISTERED HOLDER(S) OF OLD NOTES SIGN HERE
               (IN ADDITION, COMPLETE SUBSTITUTE FORM W-9 BELOW)

X
- --------------------------------------------------------------------------------

X
- --------------------------------------------------------------------------------

     Must be signed by registered holder(s) exactly as name(s) appear(s) on the
Old Notes or on a security position listing as the owner of the Old Notes or by
person(s) authorized to become registered holder(s) by properly completed bond
powers transmitted herewith. If signature is by attorney-in-fact, trustee,
executor, administrator, guardian, officer of a corporation or other person
acting in a fiduciary capacity, please provide the following information (please
print or type):


                                                

- -----------------------------------------------                  SIGNATURE GUARANTEE
        NAME AND CAPACITY (FULL TITLE)                    (IF REQUIRED--SEE INSTRUCTION 4)
- -----------------------------------------------    -----------------------------------------------
- -----------------------------------------------       (SIGNATURE OF REPRESENTATIVE OF SIGNATURE
- -----------------------------------------------                      GUARANTOR)
         ADDRESS (INCLUDING ZIP CODE)              -----------------------------------------------
- -----------------------------------------------                   (NAME AND TITLE)
       (AREA CODE AND TELEPHONE NUMBER)            -----------------------------------------------
- -----------------------------------------------                    (NAME OF PLAN)
  (TAXPAYER IDENTIFICATION OR SOCIAL SECURITY      -----------------------------------------------
                     NO.)                                 (AREA CODE AND TELEPHONE NUMBER)

                    Dated:                                             Dated:
   ------------------------------------------,       ------------------------------------------,
                      2001                                              2001


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

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                     PAYOR'S NAME: TIME WARNER TELECOM INC.

     THIS SUBSTITUTE FORM W-9 MUST BE COMPLETED AND SIGNED. Please provide your
social security number or other taxpayer identification number on the following
Substitute Form W-9 and certify therein that you are subject to backup
withholding.


                                                                                       
SUBSTITUTE                             PART I -- PLEASE PROVIDE YOUR TIN      ----------------------------------
FORM   W-9                             IN THE BOX AT THE RIGHT AND                  Social Security Number
DEPARTMENT OF THE TREASURY             CERTIFY BY SIGNING AND DATING                          OR
INTERNAL REVENUE SERVICE               BELOW. For all accounts, enter TIN     ----------------------------------
                                       in the box at right. (For most           Employer Identification Number
                                       individuals, this is your social
                                       security number. If you do not              (If awaiting TIN, write
                                       have a number, see enclosed                      "Applied For")
                                       Guidelines for Certification of
                                       Taxpayer Identification Number on
                                       Substitute Form W-9.) Certify by
                                       signing and dating below.
PAYER'S REQUEST FOR TAXPAYER           PART II -- For Payees exempt from backup withholding, see the enclosed
IDENTIFICATION NUMBER (TIN)            Guidelines for Certification of Taxpayer Identification Number on Substitute
                                       Form W-9 and complete as instructed therein.
- ----------------------------------------------------------------------------------------------



                                  
CERTIFICATION -- Under penalties of perjury, I certify that:
(1) The number shown on this form is my correct Taxpayer Identification Number or 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 ("IRS") Center or Social Security Administration Office or (b) I
    intend to mail or deliver an application in the near future; and
(2) I am not subject to backup withholding either because (a) I am exempt from backup withholding, (b) I have not been
    notified by the IRS that I am subject to backup withholding as a result of failure to report all interest or
    dividends, or (c) the IRS has notified me that I am no longer subject to backup withholding.
CERTIFICATE INSTRUCTIONS -- You must cross out item (2) above if you have been notified by the IRS that you are subject
to backup withholding because of underreporting interest or dividends on your tax return. However, if after being
notified by the IRS that you were subject to backup withholding you received another notification from the IRS that you
are no longer subject to backup withholding, do not cross out item (2). (Also see instructions in the enclosed
Guidelines.)
- -------------------------------------------------------------------------------------------------------------------------
 The IRS does not require your consent to any provision of this document other than the certifications required to avoid
 backup withholding.
- -------------------------------------------------------------------------------------------------------------------------
 Signature -------------------- Date ---------- , 2001
- -------------------------------------------------------------------------------------------------------------------------


NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
      OF 31% OF ANY PAYMENTS MADE TO YOU ON ACCOUNT OF THE NEW NOTES. PLEASE
      REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER
      IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.

    YOU MUST COMPLETE THE FOLLOWING CERTIFICATION IF YOU WROTE "APPLIED FOR"
                  INSTEAD OF A TIN IN THE 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 Administration 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 payment, 31%
of all reportable payments made to me will be withheld until I provide a number,
but will be refunded if I provide a certified taxpayer identification number
within 60 days.


                                                 

        ---------------------------------                   ---------------------------------
                    Signature                                             Date:


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                                  INSTRUCTIONS

                         FORMING PART OF THE TERMS AND
                        CONDITIONS OF THE EXCHANGE OFFER

     1. DELIVERY OF THIS LETTER OF TRANSMITTAL AND CERTIFICATES.  All physically
delivered Old Notes or confirmation of any book-entry transfer to the Exchange
Agent's account at a book-entry transfer facility of Old Notes tendered by
book-entry transfer, as well as a properly completed and duly executed copy of
this Letter of Transmittal or facsimile thereof, and any other documents
required by this Letter of Transmittal, must be received by the Exchange Agent
at its address set forth herein on or prior to expiration of the Exchange Offer
(the "Expiration Date"). The method of delivery of this Letter of Transmittal,
the Old Notes and any other required documents 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. If such delivery is by
mail, it is suggested that registered mail with return receipt requested,
properly insured, be used.

     No alternative, conditional, irregular or contingent tenders will be
accepted. All tendering Holders, by execution of this Letter of Transmittal (or
facsimile thereof), shall waive any right to receive notice of the acceptance of
the Old Notes for exchange.

     Delivery to an address other than as set forth herein, or instructions via
a facsimile number other than the ones set forth herein, will not constitute a
valid delivery.

     2. GUARANTEED DELIVERY PROCEDURES.  Holders who wish to tender their Old
Notes, but whose Old Notes are not immediately available and thus cannot deliver
their Old Notes, the Letter of Transmittal or any other required documents to
the Exchange Agent (or comply with the procedures for book-entry transfer) prior
to the Expiration Date, may effect a tender if:

          (a) the tender is made through 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 correspondent
     in the United States or an "eligible guarantor institution" within the
     meaning of Rule 17Ad-15 under the Exchange Act (an "Eligible Institution");

          (b) prior to the Expiration Date, the Exchange Agent receives from
     such 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, the registration
     number(s) 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 New York Stock Exchange trading days after the Expiration Date, the
     Letter of Transmittal (or facsimile thereof), together with the Old Notes
     (or a confirmation of book-entry transfer of such Old Notes into the
     Exchange Agent's account at the Depository) and any other documents
     required by the Letter of Transmittal, will be deposited by the Eligible
     Institution with the Exchange Agent; and

          (c) such properly completed and executed Letter of Transmittal (or
     facsimile thereof) as well as all tendered Old Notes in proper form for
     transfer (or a confirmation of book-entry transfer of such Old Notes into
     the Exchange Agent's account at the Depository) and all other documents
     required by the Letter of Transmittal, are received by the Exchange Agent
     within three New York Stock Exchange trading days after the Expiration
     Date.

     Upon request to the Exchange Agent, a Notice of Guaranteed Delivery will be
sent to Holders who wish to tender their Old Notes according to the guaranteed
delivery procedures set forth above. Any Holder who wishes to tender Old Notes
pursuant to the guaranteed delivery procedures described above must ensure that
the Exchange Agent receives the Notice of Guaranteed Delivery relating to such
Old Notes prior to the Expiration Date. Failure to comply with the guaranteed
delivery procedures outlined above will not, of itself, affect the validity or
effect a revocation of any Letter of Transmittal form properly completed and
executed by a Holder who attempted to use the guaranteed delivery procedures.

     3. PARTIAL TENDERS; WITHDRAWALS.  If less than the entire principal amount
of Old Notes evidenced by a submitted certificate is tendered, the tendering
Holder should fill in the principal amount tendered in the column entitled
"Principal Amount Tendered" in the box entitled "Description of 10 1/8% Senior
Notes due

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2011 Tendered Hereby." A newly issued Old Note for the principal amount of Old
Notes submitted but not tendered will be sent to such Holder as soon as
practicable after the Expiration Date. All Old Notes delivered to the Exchange
Agent will be deemed to have been tendered in full unless otherwise indicated.

     Old Notes tendered pursuant to the Exchange Offer may be withdrawn at any
time prior to the Expiration Date, after which tenders of Old Notes are
irrevocable. To be effective, a written, telegraphic or facsimile transmission
notice of withdrawal must be timely received by the Exchange Agent. Any such
notice of withdrawal must (i) specify the name of the person having deposited
the Old Notes to be withdrawn (the "Depositor"), (ii) identify the Old Notes to
be withdrawn (including the registration number(s) and principal amount of such
Old Notes, or, in the case of Old Notes transferred by book-entry transfer, the
name and number of the account at the Depository to be credited), (iii) be
signed by the Holder in the same manner as the original signature on this Letter
of Transmittal (including any required signature guarantees) or be accompanied
by documents of transfer sufficient to have the Trustee with respect to the Old
Notes register the transfer of such Old Notes into the name of the person
withdrawing the tender and (iv) specify the name in which any such Old Notes are
to be registered, if different from that of the Depositor. All questions as to
the validity, form and eligibility (including time of receipt) of such notices
will be determined by Time Warner Telecom, whose determination shall be final
and binding on all parties. Any Old Notes so withdrawn will be deemed not to
have been validly tendered for purposes of the Exchange Offer and no New Notes
will be issued with respect thereto unless the Old Notes so withdrawn are
validly retendered. Any Old Notes which have been tendered but which are not
accepted for exchange will be returned to the Holder thereof without cost to
such Holder as soon as practicable after withdrawal, rejection of tender or
termination of Exchange Offer.

     4. SIGNATURE ON THIS LETTER OF TRANSMITTAL; WRITTEN INSTRUMENTS AND
ENDORSEMENTS; GUARANTEE OF SIGNATURES.  If this Letter of Transmittal 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 certificates without
alteration or enlargement or any change whatsoever. If this Letter of
Transmittal is signed by a participant in the Depository, the signature must
correspond with the name as it appears on the security position listing as the
owner of the Old Notes.

     If any of the Old Notes tendered hereby are owned of record by two or more
joint owners, all such owners must sign this Letter of Transmittal.

     If a number of Old Notes registered in different names are tendered, it
will be necessary to complete, sign and submit as many separate copies of this
Letter of Transmittal as there are different registrations of Old Notes.

     Signatures of this Letter of Transmittal or a notice of withdrawal, as the
case may be, must be guaranteed by an Eligible Institution unless the Old Notes
tendered hereby are tendered (i) by a registered Holder who has not completed
the box entitled "Special Registration Instructions" or "Special Delivery
Instructions" on the Letter of Transmittal or (ii) for the account of an
Eligible Institution.

     If this Letter of Transmittal is signed by the registered Holder or Holders
of Old Notes (which term, for the purposes described herein, shall include a
participant in the Depository whose name appears on a security listing as the
owner of the Old Notes) listed and tendered hereby, no endorsements of the
tendered Old Notes or separate written instruments of transfer or exchange are
required. In any other case, the registered Holder (or acting Holder) must
either properly endorse the Old Notes or transmit properly completed bond powers
with this Letter of Transmittal (in either case, executed exactly as the name(s)
of the registered Holder(s) appear(s) on the Old Notes, and, with respect to a
participant in the Depository whose name appears on a security position listing
as the owner of Old Notes, exactly as the name of the participant appears on
such security position listing), with the signature on the Old Notes or bond
power guaranteed by an Eligible Institution (except where the Old Notes are
tendered for the account of an Eligible Institution).

     If this Letter of Transmittal, any certificates or separate written
instruments of transfer or exchange are signed by trustees, executors,
administrators, guardians, attorneys-in-fact, officers of corporations or others
acting in a fiduciary or representative capacity, such persons should so
indicate when signing, and, unless waived by Time Warner Telecom, proper
evidence satisfactory to Time Warner Telecom of their authority so to act must
be submitted.

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     5. SPECIAL REGISTRATION AND DELIVERY INSTRUCTIONS.  Tendering Holders
should indicate, in the applicable box, the name and address (or account at the
Depository) in which the New Notes or substitute Old Notes for principal amounts
not tendered or not accepted for exchange are to be issued (or deposited), if
different from the names and addresses or accounts of the person signing this
Letter of Transmittal. In the case of issuance in a different name, the employer
identification number or social security number of the person named must also be
indicated and the tendering Holder should complete the applicable box.

     If no instructions are given, the New Notes (and any Old Notes not tendered
or not accepted) will be issued in the name of and sent to the acting Holder of
the Old Notes or deposited at such Holder's account at the Depository.

     6. TRANSFER TAXES.  Time Warner Telecom shall pay all transfer taxes, if
any, applicable to the transfer and exchange of Old Notes to it or its order
pursuant to the Exchange Offer. If a transfer tax is imposed for any reason
other than the transfer and exchange of Old Notes to Time Warner Telecom or its
order pursuant to the Exchange Offer, 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
exception therefrom is not submitted herewith, the amount of such transfer taxes
will be collected from the tendering Holder by the Exchange Agent.

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

     7. WAIVER OF CONDITIONS.  Time Warner Telecom reserves the right, in its
reasonable judgment, to waive, in whole or in part, any of the conditions to the
Exchange Offer set forth in the Prospectus.

     8. MUTILATED, LOST, STOLEN OR DESTROYED OLD NOTES.  Any Holder whose Old
Notes have been mutilated, lost, stolen or destroyed should contact the Exchange
Agent at the address indicated above for further instructions.

     9. REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES.  Questions relating to the
procedure for tendering, as well as requests for additional copies of the
Prospectus and this Letter of Transmittal, may be directed to the Exchange Agent
at the address and telephone number(s) set forth above. In addition, all
questions relating to the Exchange Offer, as well as requests for assistance or
additional copies of the Prospectus and this Letter of Transmittal, may be
directed to Time Warner Telecom, 10475 Park Meadows Drive, Littleton, Colorado
80124, Attention: Corporate Secretary; telephone (303) 566-1000.

     10. VALIDITY AND FORM.  All questions as to the validity, form, eligibility
(including time of receipt), acceptance of tendered Old Notes and withdrawal of
tendered Old Notes will be determined by Time Warner Telecom in its sole
discretion, which determination will be final and binding. Time Warner Telecom
reserves the absolute right to reject any and all Old Notes not properly
tendered or any Old Notes Time Warner Telecom's acceptance of which would, in
the opinion of counsel for Time Warner Telecom, be unlawful. Time Warner Telecom
also reserves the right, in its reasonable judgment, to waive any defects,
irregularities or conditions of tender as to particular Old Notes. Time Warner
Telecom'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 Time
Warner Telecom shall determine. Although Time Warner Telecom intends to notify
Holders of defects or irregularities with respect to tenders of Old Notes,
neither Time Warner Telecom, the Exchange Agent nor any other person shall 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 by the Exchange Agent to the tendering Holder
as soon as practicable following the Expiration Date.

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                           IMPORTANT TAX INFORMATION

     Under federal income tax law, a Holder tendering Old Notes is required to
provide the Exchange Agent with Holder's correct TIN on Substitute Form W-9
above. If such Holder is an individual, the TIN is the Holder's social security
number. The Certificate of Awaiting Taxpayer Identification Number should be
completed if the tendering Holder has not been issued a TIN and has applied for
a number or intends to apply for a number in the near future. If the Exchange
Agent is not provided with the correct TIN, the Holder may be subject to a $50
penalty imposed by the IRS. In addition, payments that are made to such Holder
with respect to tendered Old Notes may be subject to backup withholding.

     Certain Holders (including, among others, all domestic corporations and
certain foreign individuals and foreign entities) are not subject to these
backup withholding and reporting requirements. Such a Holder who satisfies one
or more of the conditions set forth in Part 2 of the Substitute Form W-9 should
execute the certification following such Part 2. In order for a foreign Holder
of qualify as an exempt recipient, that Holder must submit to the Exchange Agent
a properly completed IRS Form W-9, signed under penalties of perjury, attesting
to that Holder's exempt status. Such forms can be obtained from the Exchange
Agent.

     If backup withholding applies, the Exchange Agent is required to withhold
31% of any amounts otherwise payable to the Holder. Backup withholding is not an
additional tax. Rather, the tax liability of persons 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.

     PURPOSE OF SUBSTITUTE FORM W-9.  To prevent backup withholding on payments
that are made to a Holder with respect to Old Notes tendered for exchange, the
Holder is required to notify the Exchange Agent of his or her correct TIN by
completing the form herein certifying that the TIN provided on Substitute Form
W-9 is correct (or that such Holder is awaiting a TIN) and that (i) such Holder
is exempt, (ii) such Holder has not been notified by the IRS that he or she is
subject to backup withholding as a result of failure to report all interest or
dividends or (iii) the IRS has notified such Holder that he or she is no longer
subject to backup withholding.

     WHAT NUMBER TO GIVE THE EXCHANGE AGENT.  Each Holder is required to give
the Exchange Agent the social security number or employer identification number
of the record Holder(s) of the Old Notes. If Old Notes are in more than one name
or are not in the name of the actual Holder, consult the instructions on IRS
Form W-9, which may be obtained from the Exchange Agent, for additional guidance
on which number to report.

     CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER.  If the tendering
Holder has not been issued a TIN and has applied for a number or intends to
apply for a number in the near future, write "Applied For" in the space for the
TIN on Substitute Form W-9, sign and date the form and the Certificate of
Awaiting Taxpayer Identification Number and return them to the Exchange Agent.
If such certificate is completed and the Exchange Agent is not provided with the
TIN within 60 days, the Exchange Agent will withhold 31% of all payments made
thereafter until a TIN is provided to the Exchange Agent.

     IMPORTANT:  This Letter of Transmittal or a facsimile thereof (together
with Old Notes or confirmation of book-entry transfer and all other required
documents) or a Notice of Guaranteed Delivery must be received by the Exchange
Agent on or prior to the Expiration Date.

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