Document:

[FORM OF FACE OF INITIAL SECURITY]

                           [Global Securities Legend]

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW YORK, TO
THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND
ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER
NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE,
BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH
SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE
LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE
INDENTURE REFERRED TO ON THE REVERSE HEREOF.

     [[FOR REGULATION S GLOBAL SECURITY ONLY] UNTIL 40 DAYS AFTER THE LATER OF
COMMENCEMENT OR COMPLETION OF THE OFFERING, AN OFFER OR SALE OF SECURITIES
WITHIN THE UNITED STATES BY A DEALER (AS DEFINED IN THE SECURITIES ACT) MAY
VIOLATE THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT IF SUCH OFFER OR
SALE IS MADE OTHERWISE THAN IN ACCORDANCE WITH RULE 144A THEREUNDER.]

              [Restricted Securities Legend for Securities Offered
                   Otherwise than in Reliance on Regulation S]

     THIS SECURITY (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A TRANSACTION
EXEMPT FROM REGISTRATION UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS
AMENDED (THE "SECURITIES ACT"), AND THIS SECURITY MAY NOT BE OFFERED, SOLD OR
OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE
EXEMPTION THEREFROM. EACH PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED THAT THE
SELLER OF THIS SECURITY MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF
SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.

     THE HOLDER OF THIS SECURITY AGREES FOR THE BENEFIT OF THE COMPANY THAT (A)
THIS SECURITY MAY BE OFFERED, RESOLD,

<PAGE>

                                                                               2

PLEDGED OR OTHERWISE TRANSFERRED, ONLY (I) TO THE COMPANY, (II) WITHIN THE
UNITED STATES TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED
INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (III) TO AN "ACCREDITED
INVESTOR" WITHIN THE MEANING OF RULE 501(A)(1),(2),(3) OR (7) UNDER THE
SECURITIES ACT THAT IS AN INSTITUTIONAL INVESTOR ACQUIRING THE SECURITIES FOR
ITS OWN ACCOUNT OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR,
IN EACH CASE IN A MINIMUM PRINCIPAL AMOUNT OF SECURITIES OF US$250,000, FOR
INVESTMENT PURPOSES AND NOT WITH A VIEW TO OR FOR OFFER OR SALE IN CONNECTION
WITH ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, (IV) OUTSIDE THE
UNITED STATES IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH RULE 904 UNDER THE
SECURITIES ACT, (V) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE
SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER (IF AVAILABLE) OR (VI) PURSUANT
TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH OF
CASES (I) THROUGH (VI) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY
STATE OF THE UNITED STATES, AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER
IS REQUIRED TO, NOTIFY ANY PURCHASER OF THIS SECURITY FROM IT OF THE RESALE
RESTRICTIONS REFERRED TO IN (A) ABOVE.

             [Restricted Securities Legend for Securities Offered in
                           Reliance on Regulation S.]

     THIS SECURITY (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A TRANSACTION
ORIGINALLY EXEMPT FROM REGISTRATION UNDER THE U.S. SECURITIES ACT OF 1933, AS
AMENDED (THE "SECURITIES ACT"), AND MAY NOT BE TRANSFERRED IN THE UNITED STATES
OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, ANY U.S. PERSON EXCEPT PURSUANT TO AN
AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND
ALL APPLICABLE STATE SECURITIES LAWS. TERMS USED ABOVE HAVE THE MEANINGS GIVEN
TO THEM IN REGULATION S UNDER THE SECURITIES ACT.

                 [Temporary Regulation S Global Security Legend]

     EXCEPT AS SET FORTH BELOW, BENEFICIAL OWNERSHIP INTERESTS IN THIS TEMPORARY
REGULATION S GLOBAL SECURITY WILL NOT BE EXCHANGEABLE FOR INTERESTS IN THE
PERMANENT REGULATION S GLOBAL SECURITY OR ANY OTHER SECURITY REPRESENTING AN
INTEREST IN THE SECURITIES REPRESENTED HEREBY WHICH DO NOT CONTAIN A LEGEND
CONTAINING RESTRICTIONS ON TRANSFER, UNTIL THE EXPIRATION OF THE "40-DAY
DISTRIBUTION COMPLIANCE PERIOD" (WITHIN THE MEANING OF RULE 903(b)(2) OF
REGULATION S UNDER THE SECURITIES ACT) AND THEN ONLY UPON CERTIFICATION IN FORM
REASONABLY SATISFACTORY TO THE TRUSTEE

<PAGE>

                                                                               3

THAT SUCH BENEFICIAL INTERESTS ARE OWNED EITHER BY NON-U.S. PERSONS OR U.S.
PERSONS WHO PURCHASED SUCH INTERESTS IN A TRANSACTION THAT DID NOT REQUIRE
REGISTRATION UNDER THE SECURITIES ACT. DURING SUCH 40-DAY DISTRIBUTION
COMPLIANCE PERIOD, BENEFICIAL OWNERSHIP INTERESTS IN THIS TEMPORARY REGULATION S
GLOBAL SECURITY MAY ONLY BE SOLD, PLEDGED OR TRANSFERRED (I) TO THE COMPANY,
(II) OUTSIDE THE UNITED STATES IN A TRANSACTION IN ACCORDANCE WITH RULE 904 OF
REGULATION S UNDER THE SECURITIES ACT, OR (III) PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN EACH OF CASES (I) THROUGH
(III) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE
UNITED STATES. HOLDERS OF INTERESTS IN THIS TEMPORARY REGULATION S GLOBAL
SECURITY WILL NOTIFY ANY PURCHASER OF THIS SECURITY OF THE RESALE RESTRICTIONS
REFERRED TO ABOVE, IF THEN APPLICABLE.

     AFTER THE EXPIRATION OF THE DISTRIBUTION COMPLIANCE PERIOD, BENEFICIAL
INTERESTS IN THIS TEMPORARY REGULATION S GLOBAL SECURITY MAY BE EXCHANGED FOR
INTERESTS IN A RULE 144A GLOBAL SECURITY ONLY IF (1) SUCH EXCHANGE OCCURS IN
CONNECTION WITH A TRANSFER OF THE SECURITIES IN COMPLIANCE WITH RULE 144A AND
(2) THE TRANSFEROR OF THE REGULATION S GLOBAL SECURITY FIRST DELIVERS TO THE
TRUSTEE A WRITTEN CERTIFICATE (IN THE FORM ATTACHED TO THIS CERTIFICATE) TO THE
EFFECT THAT THE REGULATION S GLOBAL SECURITY IS BEING TRANSFERRED (A) TO A
PERSON WHO THE TRANSFEROR REASONABLY BELIEVES TO BE A QUALIFIED INSTITUTIONAL
BUYER WITHIN THE MEANING OF RULE 144A, (B) TO A PERSON WHO IS PURCHASING FOR ITS
OWN ACCOUNT OR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION
MEETING THE REQUIREMENTS OF RULE 144A, AND (C) IN ACCORDANCE WITH ALL APPLICABLE
SECURITIES LAWS OF THE STATES OF THE UNITED STATES AND OTHER JURISDICTIONS.

     AFTER THE EXPIRATION OF THE DISTRIBUTION COMPLIANCE PERIOD, BENEFICIAL
INTERESTS IN THIS TEMPORARY REGULATION S GLOBAL SECURITY MAY BE EXCHANGED FOR
INTERESTS IN AN IAI GLOBAL SECURITY ONLY IF (1) SUCH EXCHANGE OCCURS IN
CONNECTION WITH A TRANSFER OF THE SECURITIES IN COMPLIANCE WITH AN EXEMPTION
UNDER THE SECURITIES ACT AND (2) THE TRANSFEROR OF THE REGULATION S GLOBAL
SECURITY FIRST DELIVERS TO THE TRUSTEE A WRITTEN CERTIFICATE (IN THE FORM
ATTACHED TO THIS CERTIFICATE) TO THE EFFECT THAT THE REGULATION S GLOBAL
SECURITY IS BEING TRANSFERRED (A) TO AN "ACCREDITED INVESTOR" WITHIN THE MEANING
OF RULE 501(a)(1),(2),(3) OR (7) UNDER THE SECURITIES ACT THAT IS AN
INSTITUTIONAL INVESTOR ACQUIRING THE SECURITIES FOR ITS OWN ACCOUNT OR FOR THE
ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, IN EACH CASE IN A MINIMUM
PRINCIPAL

<PAGE>

                                                                               4

AMOUNT OF SECURITIES OF US$250,000, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW
TO OR FOR OFFER OR SALE IN CONNECTION WITH ANY DISTRIBUTION IN VIOLATION OF THE
SECURITIES ACT AND (B) IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS OF THE
STATES OF THE UNITED STATES AND OTHER JURISDICTIONS.

     BENEFICIAL INTERESTS IN A RULE 144A GLOBAL SECURITY OR AN IAI GLOBAL
SECURITY MAY BE TRANSFERRED TO A PERSON WHO TAKES DELIVERY IN THE FORM OF AN
INTEREST IN THE REGULATION S GLOBAL SECURITY, WHETHER BEFORE OR AFTER THE
EXPIRATION OF THE 40-DAY DISTRIBUTION COMPLIANCE PERIOD, ONLY IF THE TRANSFEROR
FIRST DELIVERS TO THE TRUSTEE A WRITTEN CERTIFICATE (IN THE FORM ATTACHED TO
THIS CERTIFICATE) TO THE EFFECT THAT SUCH TRANSFER IS BEING MADE IN ACCORDANCE
WITH RULE 903 OR 904 OF REGULATION S OR RULE 144 (IF AVAILABLE).

                         [Definitive Securities Legend]

     IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR
AND TRANSFER AGENT SUCH CERTIFICATES AND OTHER INFORMATION AS SUCH TRANSFER
AGENT MAY REASONABLY REQUIRE TO CONFIRM THAT THE TRANSFER COMPLIES WITH THE
FOREGOING RESTRICTIONS.

<PAGE>

No.
                                                                             US$
                                                                       CUSIP No.
                                                                        ISIN No.

                            11% Senior Notes due 2013

     Axtel, S.A. de C.V., a Mexican corporation, promises to pay to Cede & Co.,
or registered assigns, the principal sum of                    United States
Dollars on December 15, 2013.

     Interest Payment Dates: June 15 and December 15.

     Record Dates: June 1 and December 1.

     Additional provisions of this Security are set forth on the other side of
this Security.

Dated:  December 16, 2003

                             SIGNATURE PAGE FOLLOWS

<PAGE>
                                                                               6

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

Dated:  December 16, 2003

                                    AXTEL, S.A. de C.V.
                                       By

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

                                       By

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

TRUSTEE'S CERTIFICATE OF
         AUTHENTICATION

The Bank of New York
  as Trustee, certifies
     that this is one of
     the Securities referred
     to in the Indenture.

  By

     ---------------------------------------------
       Authorized Signatory

<PAGE>

                                                                               7

                   [FORM OF REVERSE SIDE OF INITIAL SECURITY]

                            11% Senior Notes due 2013

1. Interest

     Axtel, S.A. de C.V., a Mexican corporation (such corporation, and its
successors and assigns under the Indenture hereinafter referred to, being herein
called the "Company"), promises to pay interest on the principal amount of this
Security at the rate per annum shown above; provided, however, that if a
Registration Default (as defined in the Registration Rights Agreement) occurs,
additional interest will accrue on this Security at a rate of 0.25% per annum
(increasing by an additional 0.25% per annum after each consecutive 90-day
period that occurs after the date on which such Registration default occurs up
to a maximum additional interest rate of 1.00%) from and including the date on
which any such Registration Default shall occur to but excluding the date on
which all Registration Defaults have been cured. The Company will pay interest
semiannually on June 15 and December 15 of each year, commencing June 15, 2004.
Interest on the Securities will accrue from the most recent date to which
interest has been paid or, if no interest has been paid, from December 16, 2003.
Interest will be computed on the basis of a 360-day year of twelve 30-day
months. The Company will pay interest on overdue principal at the rate borne by
this Security plus 1.0% per annum, and it will pay interest on overdue
installments of interest at the same rate to the extent lawful.

2. Method of Payment

     The Company will pay interest on the Securities (except defaulted interest)
to the Persons who are registered holders of Securities at the close of business
on the June 1 or December 1 next preceding the interest payment date even if
Securities are canceled after the record date and on or before the interest
payment date. Holders must surrender Securities to a Paying Agent to collect
principal payments. The Company will pay principal and interest in money of the
United States that at the time of payment is legal tender for payment of public
and private debts. Payments in respect of the Securities represented by a Global
Security (including principal, premium and interest) will be made by wire
transfer of immediately available funds to the accounts specified by The
Depository Trust Company. The Company will make all payments in respect of a
certificated Security (including principal, premium and interest) by mailing a
check to the registered address of each Holder thereof; provided, however, that
payments on a certificated Security will be made by wire transfer to a U.S.
dollar account maintained by the payee with a bank in the United States if such
Holder elects payment by wire transfer by giving written notice to the Trustee
or the Paying Agent to such effect designating such account no later than 30
days immediately preceding the relevant due date for payment (or such other date
as the Trustee may accept in its discretion). Payments made, whether by wire
transfer or check, will be due and payable outside of Mexico.

<PAGE>

                                                                               8

3. Paying Agent and Registrar

     Initially, The Bank of New York, a New York banking corporation (the
"Trustee"), will act as Paying Agent and Registrar. The Company may appoint and
change any Paying Agent, Registrar or co-registrar without notice. The Company
or any of its domestically incorporated Wholly Owned Subsidiaries may act as
Paying Agent, Registrar or co-registrar.

4. Indenture

     The Company issued the Securities under an Indenture dated as of December
16, 2003 ("Indenture"), among the Company, the Subsidiary Guarantors and the
Trustee. The terms of the Securities include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.C. ss.ss. 77aaa-77bbbb) as in effect on the date of the Indenture (the
"Act"). Terms defined in the Indenture and not defined herein have the meanings
ascribed thereto in the Indenture. The Securities are subject to all such terms,
and Securityholders are referred to the Indenture and the Act for a statement of
those terms.

     The Securities are general unsecured obligations of the Company. The
Company shall be entitled, subject to its compliance with Section 4.03 of the
Indenture, to issue Additional Securities pursuant to Section 2.13 of the
Indenture. The Initial Securities issued on the Issue Date, any Additional
Securities and all Exchange Securities or Private Exchange Securities issued in
exchange therefor will be treated as a single class for all purposes under the
Indenture. The Indenture contains covenants that limit the ability of the
Company and its subsidiaries to incur additional indebtedness; pay dividends or
distributions on, or redeem or repurchase capital stock; make investments; issue
or sell capital stock of subsidiaries; engage in transactions with affiliates;
create liens on assets; transfer or sell assets; guarantee indebtedness;
restrict dividends or other payments of subsidiaries; consolidate, merge or
transfer all or substantially all of its assets and the assets of its
subsidiaries; and engage in sale/leaseback transactions. These covenants are
subject to important exceptions and qualifications.

5. Optional Redemption

     Except as set forth below, the Company shall not be entitled to redeem the
Securities.

     On and after December 15, 2008, the Company shall be entitled at its option
to redeem all or a portion of the Securities upon not less than 30 nor more than
60 days' notice, at the redemption prices (expressed in percentages of principal
amount on the redemption date), plus accrued interest to the redemption date
(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date),

<PAGE>
                                                                               1

     if redeemed during the 12-month period commencing on December 15 of the
years set forth below:

--------------------------------------------- ------------------------
                                                    Redemption
Period                                                 Price

--------------------------------------------- ------------------------
2008                                                 105.500%
--------------------------------------------- ------------------------
2009                                                 103.667%
--------------------------------------------- ------------------------
2010                                                 101.833%
--------------------------------------------- ------------------------
2011 and thereafter                                  100.000%
--------------------------------------------- ------------------------

     In addition, prior to December 15, 2006, the Company shall be entitled at
its option on one or more occasions to redeem Securities (which includes
Additional Securities, if any) in an aggregate principal amount not to exceed
35% of the aggregate principal amount of the Securities (which includes
Additional Securities, if any) originally issued at a redemption price
(expressed as a percentage of principal amount) of 111%, plus accrued and unpaid
interest to the redemption date, with the net cash proceeds from one or more
Equity Offerings; provided, however, that (1) at least 65% of such aggregate
principal amount of Securities (which includes Additional Securities, if any)
remains outstanding immediately after the occurrence of each such redemption
(other than Securities held, directly or indirectly, by the Company or its
Affiliates); and (2) each such redemption occurs within 60 days after the date
of the related Public Equity Offering.

6. Redemption for Changes in Withholding Taxes

     The Company shall be entitled to redeem the Securities in whole, but not in
part, upon giving not less than 30 nor more than 60 days' prior notice mailed by
first class mail to each Holder's registered address, at 100% of their principal
amount, plus accrued and unpaid interest to the redemption date (subject to the
right of Holders of record on the relevant record date to receive interest due
on the relevant interest payment date) and including Additional Amounts payable
in respect of such payment, if (i) the Company certifies to the Trustee
immediately prior to the giving of such notice that as a result of any change in
or amendment to the laws, regulations, general rules or treaties of any Relevant
Taxing Jurisdiction, or any change in the application or official interpretation
of such laws, regulations, general rules or treaties, which change or amendment
became effective after the Issue Date, the Company has become or will become
obligated to pay Additional Amounts with respect to the Securities in excess of
the Additional Amounts that would be payable were payments of interest or
discounts deemed to be interest on the Securities subject to a 10% withholding
tax ("Excessive Additional Amounts") and (ii) such obligations cannot be avoided
by the Company taking reasonable measures available to it; provided, however,
that (a) no such notice of redemption will be given earlier than 60 days prior
to the earliest date on which the Company would be obligated to pay such
Excessive Additional Amounts and (b) at the time such notice is given, the
Company's obligation to pay such Additional Amounts (including any Excessive
Additional Amounts) remains in effect. Prior to giving of any notice of
redemption described in this paragraph, the Company will deliver to the Trustee

<PAGE>

                                                                               2

an Officers' Certificate stating that the Company is entitled to effect such
redemption in accordance with the terms set forth in this Security and setting
forth in reasonable detail a statement of the facts relating thereto (together
with a written Opinion of Counsel to the effect that the Company has become
obligated to pay such Excessive Additional Amounts as a result of a change or
amendment described above and that the Company cannot avoid payment of such
Excessive Additional Amounts by taking reasonable measures available to it and
that all governmental approvals necessary for the Company to effect such
redemption have been obtained and are in full force and effect or specifying any
such necessary approvals that as of the date of such opinion have not been
obtained).

7. Notice of Redemption

     Notice of redemption will be mailed at least 30 days but not more than 60
days before the redemption date to each Holder of Securities to be redeemed at
his registered address. Securities in denominations larger than US$1,000
principal amount may be redeemed in part but only in whole multiples of
US$1,000. If money sufficient to pay the redemption price of and accrued
interest on all Securities (or portions thereof) to be redeemed on the
redemption date is deposited with the Paying Agent on or before the redemption
date and certain other conditions are satisfied, on and after such date interest
ceases to accrue on such Securities (or such portions thereof) called for
redemption.

8. Put Provisions

     Upon a Change of Control, any Holder of Securities will have the right to
cause the Company to purchase all or any part of the Securities of such Holder
at a purchase price equal to 101% of the principal amount of the Securities to
be purchased plus accrued interest to the date of purchase (subject to the right
of Holders of record on the relevant record date to receive interest due on the
related interest payment date) as provided in, and subject to the terms of, the
Indenture.

9. Guaranty

     The payment by the Company of the principal of, and premium and interest
on, the Securities is fully and unconditionally guaranteed on a joint and
several senior basis by each of the Subsidiary Guarantors to the extent set
forth in the Indenture.

10. Denominations; Transfer; Exchange

     The Securities are in registered form without coupons in denominations of
US$1,000 principal amount and whole multiples of US$1,000. A Holder may transfer
or exchange Securities in accordance with the Indenture. The Registrar may
require a Holder, among other things, to furnish appropriate endorsements or
transfer documents and to pay any taxes and fees required by law or permitted by
the Indenture. The Registrar need not register the transfer of or exchange any
Securities selected for redemption (except, in the case of a Security to be
redeemed in part, the portion of the Security not to be redeemed) or any
Securities for a period of 15 days before a selection of Securities to be
redeemed or 15 days before an interest payment date.

<PAGE>

                                                                               3

11. Persons Deemed Owners

     The registered Holder of this Security may be treated as the owner of it
for all purposes.

12. Unclaimed Money

     If money for the payment of principal or interest remains unclaimed for two
years, the Trustee or Paying Agent shall pay the money back to the Company at
its request unless an abandoned property law designates another Person. After
any such payment, Holders entitled to the money must look only to the Company
and not to the Trustee for payment.

13. Discharge and Defeasance

     Subject to certain conditions, the Company at any time shall be entitled to
terminate some or all of its obligations under the Securities and the Indenture
if the Company deposits with the Trustee money or U.S. Government Obligations
for the payment of principal and interest on the Securities to redemption or
maturity, as the case may be.

14. Amendment, Waiver

     Subject to certain exceptions set forth in the Indenture, (a) the Indenture
and the Securities may be amended with the written consent of the Holders of at
least a majority in principal amount outstanding of the Securities and (b) any
default or noncompliance with any provision may be waived with the written
consent of the Holders of a majority in principal amount outstanding of the
Securities. Subject to certain exceptions set forth in the Indenture, without
the consent of any Securityholder, the Company, the Subsidiary Guarantors and
the Trustee shall be entitled to amend the Indenture or the Securities to cure
any ambiguity, omission, defect or inconsistency, or to comply with Article 5 of
the Indenture, or to provide for uncertificated Securities in addition to or in
place of certificated Securities, or to add guarantees with respect to the
Securities, including Subsidiary Guaranties, or to secure the Securities, or to
add additional covenants or surrender rights and powers conferred on the Company
or the Subsidiary Guarantors, or to comply with any request of the SEC in
connection with qualifying the Indenture under the Act, or to make any change
that does not adversely affect the rights of any Securityholder.

15. Defaults and Remedies

     Under the Indenture, Events of Default include (a) default for 30 days in
payment of interest on the Securities; (b) default in payment of principal on
the Securities at maturity, upon redemption pursuant to paragraph 5 or 6 of the
Securities, upon acceleration or otherwise, or failure by the Company to redeem
or purchase Securities when required; (c) failure by the Company or any
Subsidiary Guarantor to comply with other agreements in the Indenture or the
Securities, in certain cases subject to notice and lapse of time; (d) certain
accelerations (including failure to pay within any grace period

<PAGE>

                                                                               4

after final maturity) of other Indebtedness of the Company if the amount
accelerated (or so unpaid) exceeds US$10 million; (e) certain events of
bankruptcy or insolvency with respect to the Company and the Significant
Subsidiaries; (f) certain judgments or decrees for the payment of money in
excess of US$10 million; and (g) certain defaults with respect to Subsidiary
Guaranties. If an Event of Default occurs and is continuing, the Trustee or the
Holders of at least 25% in principal amount of the Securities may declare all
the Securities to be due and payable immediately. Certain events of bankruptcy
or insolvency are Events of Default which will result in the Securities being
due and payable immediately upon the occurrence of such Events of Default.

     Securityholders may not enforce the Indenture or the Securities except as
provided in the Indenture. The Trustee may refuse to enforce the Indenture or
the Securities unless it receives indemnity or security satisfactory to it.
Subject to certain limitations, Holders of a majority in principal amount of the
Securities may direct the Trustee in its exercise of any trust or power. The
Trustee may withhold from Securityholders notice of any continuing Default
(except a Default in payment of principal or interest) if it determines that
withholding notice is in the interest of the Holders.

16. Trustee Dealings with the Company

     Subject to certain limitations imposed by the Act, the Trustee under the
Indenture, in its individual or any other capacity, may become the owner or
pledgee of Securities and may otherwise deal with and collect obligations owed
to it by the Company or its Affiliates and may otherwise deal with the Company
or its Affiliates with the same rights it would have if it were not Trustee.

17. No Recourse Against Others

     A director, officer, employee or stockholder, as such, of the Company or
the Trustee shall not have any liability for any obligations of the Company
under the Securities or the Indenture or for any claim based on, in respect of
or by reason of such obligations or their creation. By accepting a Security,
each Securityholder waives and releases all such liability. The waiver and
release are part of the consideration for the issue of the Securities.

18. Authentication

     This Security shall not be valid until an authorized signatory of the
Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Security.

19. Abbreviations

     Customary abbreviations may be used in the name of a Securityholder or an
assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the
entireties), JT TEN (=joint tenants with rights of survivorship and not as
tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors
Act).

<PAGE>

                                                                               5

20. CUSIP Numbers

     Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures the Company has caused CUSIP numbers to be
printed on the Securities and has directed the Trustee to use CUSIP numbers in
notices of redemption as a convenience to Securityholders. No representation is
made as to the accuracy of such numbers either as printed on the Securities or
as contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

21.      Holders' Compliance with Registration Rights Agreement.

     Each Holder of a Security, by acceptance hereof, acknowledges and agrees to
the provisions of the Registration Rights Agreement, including the obligations
of the Holders with respect to a registration and the indemnification of the
Company to the extent provided therein.

22. Governing Law.

     THIS SECURITY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE
LAWS OF THE STATE OF NEW YORK.

     The Company will furnish to any Securityholder upon written request and
without charge to the Security holder a copy of the Indenture which has in it
the text of this Security in larger type. Requests may be made to:

Axtel, S.A. de C.V.
Blvd. Diaz Ordaz km. 3.33 No. L-1
Col. Unidad San Pedro
San Pedro Garza Garcia, N.L.
Mexico, CP  66215
Telephone:  +52 (81) 8114-0000
Facsimile:  +52(81) 8114-1771
Attention:  Chief Financial Officer

<PAGE>

--------------------------------------------------------------------------------
                                 ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to

         (Print or type assignee's name, address and zip code)

         (Insert assignee's soc. sec. or tax I.D. No.)

and irrevocably appoint                           agent to transfer this
Security on the books of the Company.  The agent may substitute another to act
for him.

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

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

Sign exactly as your name appears on the other side of this Security.

In connection with any transfer of any of the Securities evidenced by this
certificate occurring prior to the expiration of the period referred to in Rule
144(k) under the Securities Act after the later of the date of original issuance
of such Securities and the last date, if any, on which such Securities were
owned by the Company or any Affiliate of the Company, the undersigned confirms
that such Securities are being transferred in accordance with its terms:

CHECK ONE BOX BELOW

(1)      |_| to the Company; or

(2)      |_| pursuant to an effective registration statement
             under the Securities Act of 1933; or

(3)      |_| inside the United States to a "qualified
             institutional buyer" (as defined in Rule 144A under
             the Securities Act of 1933) that purchases for its
             own account or for the account of a qualified
             institutional buyer to whom notice is given that such
             transfer is being made in reliance on Rule 144A, in
             each case pursuant to and in compliance with Rule
             144A under the Securities Act of 1933; or

(4)      |_| outside the United States in an offshore
             transaction within the meaning of Regulation S under
             the Securities Act in compliance with Rule 904 under
             the Securities Act of 1933;

<PAGE>
                                                                               7

(5)      |_| pursuant to the exemption from registration provided by Rule 144
             under the Securities Act of 1933; or

(6)      |_| to an institutional "accredited investor" (as
             defined in Rule 501(a)(1), (2), (3) or (7) under the
             Securities Act of 1933) that has furnished to the
             Trustee a signed letter containing certain
             representations and agreements.

Unless one of the boxes is checked, the Trustee will refuse to register any of
the Securities evidenced by this certificate in the name of any person other
than the registered holder thereof; provided, however, that if box (4), (5) or
(6) is checked, the Trustee shall be entitled to require, prior to registering
any such transfer of the Securities, such legal opinions, certifications and
other information as the Company has reasonably requested to confirm that such
transfer is being made pursuant to an exemption from, or in a transaction not
subject to, the registration requirements of the Securities Act of 1933.

                               Signature
                                        ----------------------------------------

Signature Guarantee:

                               ----------------------------   ------------------
                               Signature must be guaranteed   Signature

     Signatures must be guaranteed by an "eligible guarantor institution"
meeting the requirements of the Registrar, which requirements include membership
or participation in the Security Transfer Agent Medallion Program ("STAMP") or
such other "signature guarantee program" as may be determined by the Registrar
in addition to, or in substitution for, STAMP, all in accordance with the
Securities Exchange Act of 1934, as amended.

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

<PAGE>

                                                                               8

              TO BE COMPLETED BY PURCHASER IF (3) ABOVE IS CHECKED.

     The undersigned represents and warrants that it is purchasing this Security
for its own account or an account with respect to which it exercises sole
investment discretion and that it and any such account is a "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act of
1933, and is aware that the sale to it is being made in reliance on Rule 144A
and acknowledges that it has received such information regarding the Company as
the undersigned has requested pursuant to Rule 144A or has determined not to
request such information and that it is aware that the transferor is relying
upon the undersigned's foregoing representations in order to claim the exemption
from registration provided by Rule 144A.

Dated:
      ----------------------------------

                                            ---------------------------------
                                              Notice:      To be executed by
                                                           an executive officer

<PAGE>

                                                                               9
                      [TO BE ATTACHED TO GLOBAL SECURITIES]

              SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

               The following increases or decreases in this Global
                            Security have been made:

<TABLE>
<CAPTION>

<S>                     <C>                    <C>                    <C>                    <C>
Date of                  Amount of decrease     Amount of increase     Principal amount of    Signature of
Exchange                 in Principal  amount   in Principal amount    this Global Security   authorized officer
                         of this Global         of this Global         following such         of Trustee or
                         Security               Security               decrease or increase   Securities Custodian
</TABLE>

<PAGE>

                                                                            10
                       OPTION OF HOLDER TO ELECT PURCHASE

     If you want to elect to have this Security purchased by the Company
pursuant to Section 4.06 or 4.10 of the Indenture, check the box:

                            /   /

     If you want to elect to have only part of this Security purchased by the
Company pursuant to Section 4.06 or 4.10 of the Indenture, state the amount in
principal amount: US$

Dated:                      Your Signature:
      --------------                       -------------------------------------
                                           (Sign exactly as your name
                                            appears on the other side of
                                            this Security.)

Signature Guarantee:
                     -----------------------------------------------------------
                                         (Signature must be guaranteed)

     Signatures must be guaranteed by an "eligible guarantor institution"
meeting the requirements of the Registrar, which requirements include membership
or participation in the Security Transfer Agent Medallion Program ("STAMP") or
such other "signature guarantee program" as may be determined by the Registrar
in addition to, or in substitution for, STAMP, all in accordance with the
Securities Exchange Act of 1934, as amended.[FORM OF FACE OF EXCHANGE SECURITY]

                           [Global Securities Legend]

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW YORK, TO
THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND
ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER
NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE,
BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH
SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE
LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE
INDENTURE REFERRED TO ON THE REVERSE HEREOF.

<PAGE>
                                                                               2

No.                                                                          US$
                                                                       CUSIP No.
                                                                        ISIN No.

                            11% Senior Notes due 2013

     Axtel, S.A. de C.V., a Mexican corporation, promises to pay to Cede & Co.,
or registered assigns, the principal sum                of United States
Dollars on December 15, 2013.

     Interest Payment Dates: June 15 and December 15.

     Record Dates: June 1 and December 1.

     Additional provisions of this Security are set forth on the other side of
this Security.

Dated:  December 16, 2003

                             SIGNATURE PAGE FOLLOWS

<PAGE>

                                                                               3

     IN WITNESS WHEREOF, the company has caused this instrument to be duly
executed.

Date:  December 16, 2003

                                   AXTEL, S.A. de C.V.
                                        By

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

                                        By

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

TRUSTEE'S CERTIFICATE OF
         AUTHENTICATION

THE BANK OF NEW YORK
     as Trustee, certifies
           that this is one of
           the Securities referred
           to in the Indenture.
     by

           ---------------------------------------------
           Authorized Signatory

<PAGE>
                                                                               4

                    FORM OF REVERSE SIDE OF EXCHANGE SECURITY
                          OR PRIVATE EXCHANGE SECURITY

                            11% Senior Notes Due 2013

1. Interest

     Axtel, S.A. de C.V., a Mexican corporation (such corporation, and its
successors and assigns under the Indenture hereinafter referred to, being herein
called the "Company"), promises to pay interest on the principal amount of this
Security at the rate per annum shown above; provided, however, that if a
Registration Default (as defined in the Registration Rights Agreement) occurs,
additional interest will accrue on this Security at a rate of 0.25% per annum
(increasing by an additional 0.25% per annum after each consecutive 90-day
period that occurs after the date on which such Registration default occurs up
to a maximum additional interest rate of 1.00%) from and including the date on
which any such Registration Default shall occur to but excluding the date on
which all Registration Defaults have been cured. The Company will pay interest
semiannually on June 15 and December 15 of each year, commencing June 15, 2004.
Interest on the Securities will accrue from the most recent date to which
interest has been paid or, if no interest has been paid, from December 16, 2003.
Interest will be computed on the basis of a 360-day year of twelve 30-day
months. The Company will pay interest on overdue principal at the rate borne by
this Security plus 1.0% per annum, and it will pay interest on overdue
installments of interest at the same rate to the extent lawful.

2. Method of Payment

     The Company will pay interest on the Securities (except defaulted interest)
to the Persons who are registered holders of Securities at the close of business
on the June `1 or December 1 next preceding the interest payment date even if
Securities are canceled after the record date and on or before the interest
payment date. Holders must surrender Securities to a Paying Agent to collect
principal payments. The Company will pay principal and interest in money of the
United States that at the time of payment is legal tender for payment of public
and private debts. Payments in respect of the Securities represented by a Global
Security (including principal, premium and interest) will be made by wire
transfer of immediately available funds to the accounts specified by The
Depository Trust Company. The Company will make all payments in respect of a
certificated Security (including principal, premium and interest) by mailing a
check to the registered address of each Holder thereof; provided, however, that
payments on a certificated Security will be made by wire transfer to a U.S.
dollar account maintained by the payee with a bank in the United States if such
Holder elects payment by wire transfer by giving written notice to the Trustee
or the Paying Agent to such effect designating such account no later than 30
days immediately preceding the relevant due date for payment (or such other date
as the Trustee may accept in its discretion). Payments made, whether by wire
transfer or check, will be due and payable outside of Mexico.

<PAGE>

                                                                               5

3. Paying Agent and Registrar

     Initially, The Bank of New York, a New York banking corporation (the
"Trustee"), will act as Paying Agent and Registrar. The Company may appoint and
change any Paying Agent, Registrar or co-registrar without notice. The Company
or any of its domestically incorporated Wholly Owned Subsidiaries may act as
Paying Agent, Registrar or co-registrar.

4. Indenture

     The Company issued the Securities under an Indenture dated as of December
16, 2003 ("Indenture"), among the Company, the Subsidiary Guarantors and the
Trustee. The terms of the Securities include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.C. ss.ss. 77aaa-77bbbb) as in effect on the date of the Indenture (the
"Act"). Terms defined in the Indenture and not defined herein have the meanings
ascribed thereto in the Indenture. The Securities are subject to all such terms,
and Securityholders are referred to the Indenture and the Act for a statement of
those terms.

     The Securities are general unsecured obligations of the Company. The
Company shall be entitled, subject to its compliance with Section 4.03 of the
Indenture, to issue Additional Securities pursuant to Section 2.13 of the
Indenture. The Initial Securities issued on the Issue Date, any Additional
Securities and all Exchange Securities or Private Exchange Securities issued in
exchange therefor will be treated as a single class for all purposes under the
Indenture. The Indenture contains covenants that limit the ability of the
Company and its subsidiaries to incur additional indebtedness; pay dividends or
distributions on, or redeem or repurchase capital stock; make investments; issue
or sell capital stock of subsidiaries; engage in transactions with affiliates;
create liens on assets; transfer or sell assets; guarantee indebtedness;
restrict dividends or other payments of subsidiaries; consolidate, merge or
transfer all or substantially all of its assets and the assets of its
subsidiaries; and engage in sale/leaseback transactions. These covenants are
subject to important exceptions and qualifications.

5. Optional Redemption

     Except as set forth below, the Company shall not be entitled to redeem the
Securities.

     On and after December 15, 2008, the Company shall be entitled at its option
to redeem all or a portion of the Securities upon not less than 30 nor more than
60 days' notice, at the redemption prices (expressed in percentages of principal
amount, on the redemption date) plus accrued interest to the redemption date
(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date),

<PAGE>
                                                                               6

     if redeemed during the 12-month period commencing on December 15 of the
years set forth below:

--------------------------------------------------- --------------------
                                                        Redemption
Period                                                     Price
--------------------------------------------------- --------------------
2008                                                    105.500%
--------------------------------------------------- --------------------
2009                                                103.667%
--------------------------------------------------- --------------------
20010                                               101.833%
--------------------------------------------------- --------------------
20011 and thereafter                                100.000%
--------------------------------------------------- --------------------

     In addition, prior to December 15, 2006, the Company shall be entitled at
its option on one or more occasions to redeem Securities (which includes
Additional Securities, if any) in an aggregate principal amount not to exceed
35% of the aggregate principal amount of the Securities (which includes
Additional Securities, if any) originally issued at a redemption price
(expressed as a percentage of principal amount) of 111%, plus accrued and unpaid
interest to the redemption date, with the net cash proceeds from one or more
Equity Offerings; provided, however, that (1) at least 65% of such aggregate
principal amount of Securities (which includes Additional Securities, if any)
remains outstanding immediately after the occurrence of each such redemption
(other than Securities held, directly or indirectly, by the Company or its
Affiliates); and (2) each such redemption occurs within 60 days after the date
of the related Public Equity Offering.

6. Redemption for Changes in Withholding Taxes

     The Company shall be entitled to redeem the Securities in whole, but not in
part, upon giving not less than 30 nor more than 60 days' prior notice mailed by
first class mail to each Holder's registered address, at 100% of their principal
amount, plus accrued and unpaid interest to the redemption date (subject to the
right of Holders of record on the relevant record date to receive interest due
on the relevant interest payment date) and including Additional Amounts payable
in respect of such payment, if (i) the Company certifies to the Trustee
immediately prior to the giving of such notice that as a result of any change in
or amendment to the laws, regulations, general rules or treaties of any Relevant
Taxing Jurisdiction, or any change in the application or official interpretation
of such laws, regulations, general rules or treaties, which change or amendment
became effective after the Issue Date, the Company has become or will become
obligated to pay Additional Amounts with respect to the Securities in excess of
the Additional Amounts that would be payable were payments of interest or
discounts deemed to be interest on the Securities subject to a 10% withholding
tax ("Excessive Additional Amounts") and (ii) such obligations cannot be avoided
by the Company taking reasonable measures available to it; provided, however,
that (a) no such notice of redemption will be given earlier than 60 days prior
to the earliest date on which the Company would be obligated to pay such
Excessive Additional Amounts and (b) at the time such notice is given, the
Company's obligation to pay such Additional Amounts (including any Excessive
Additional Amounts) remains in effect. Prior to giving of any notice of
redemption described in this paragraph, the Company will deliver to the Trustee
an Officers'

<PAGE>

                                                                               7

Certificate stating that the Company is entitled to effect such redemption in
accordance with the terms set forth in this Security and setting forth in
reasonable detail a statement of the facts relating thereto (together with a
written Opinion of Counsel to the effect that the Company has become obligated
to pay such Excessive Additional Amounts as a result of a change or amendment
described above and that the Company cannot avoid payment of such Excessive
Additional Amounts by taking reasonable measures available to it and that all
governmental approvals necessary for the Company to effect such redemption have
been obtained and are in full force and effect or specifying any such necessary
approvals that as of the date of such opinion have not been obtained).

7. Notice of Redemption

     Notice of redemption will be mailed at least 30 days but not more than 60
days before the redemption date to each Holder of Securities to be redeemed at
his registered address. Securities in denominations larger than US$1,000
principal amount may be redeemed in part but only in whole multiples of
US$1,000. If money sufficient to pay the redemption price of and accrued
interest on all Securities (or portions thereof) to be redeemed on the
redemption date is deposited with the Paying Agent on or before the redemption
date and certain other conditions are satisfied, on and after such date interest
ceases to accrue on such Securities (or such portions thereof) called for
redemption.

8. Put Provisions

     Upon a Change of Control, any Holder of Securities will have the right to
cause the Company to purchase all or any part of the Securities of such Holder
at a purchase price equal to 101% of the principal amount of the Securities to
be purchased plus accrued interest to the date of purchase (subject to the right
of Holders of record on the relevant record date to receive interest due on the
related interest payment date) as provided in, and subject to the terms of, the
Indenture.

9. Guaranty

     The payment by the Company of the principal of, and premium and interest
on, the Securities is fully and unconditionally guaranteed on a joint and
several senior basis by each of the Subsidiary Guarantors to the extent set
forth in the Indenture.

10. Denominations; Transfer; Exchange

     The Securities are in registered form without coupons in denominations of
US$1,000 principal amount and whole multiples of US$1,000. A Holder may transfer
or exchange Securities in accordance with the Indenture. The Registrar may
require a Holder, among other things, to furnish appropriate endorsements or
transfer documents and to pay any taxes and fees required by law or permitted by
the Indenture. The Registrar need not register the transfer of or exchange any
Securities selected for redemption (except, in the case of a Security to be
redeemed in part, the portion of the Security not to be redeemed) or any
Securities for a period of 15 days before a selection of Securities to be
redeemed or 15 days before an interest payment date.

<PAGE>

                                                                               8

11. Persons Deemed Owners

     The registered Holder of this Security may be treated as the owner of it
for all purposes.

12. Unclaimed Money

     If money for the payment of principal or interest remains unclaimed for two
years, the Trustee or Paying Agent shall pay the money back to the Company at
its request unless an abandoned property law designates another Person. After
any such payment, Holders entitled to the money must look only to the Company
and not to the Trustee for payment.

13. Discharge and Defeasance

     Subject to certain conditions, the Company at any time shall be entitled to
terminate some or all of its obligations under the Securities and the Indenture
if the Company deposits with the Trustee money or U.S. Government Obligations
for the payment of principal and interest on the Securities to redemption or
maturity, as the case may be.

14. Amendment; Waiver

     Subject to certain exceptions set forth in the Indenture, (1) the Indenture
and the Securities may be amended with the written consent of the Holders of at
least a majority in principal amount outstanding of the Securities and (2) any
default or noncompliance with any provision may be waived with the written
consent of the Holders of a majority in principal amount outstanding of the
Securities. Subject to certain exceptions set forth in the Indenture, without
the consent of any Securityholder, the Company, the Subsidiary Guarantors and
the Trustee shall be entitled to amend the Indenture or the Securities to cure
any ambiguity, omission, defect or inconsistency, or to comply with Article 5 of
the Indenture, or to provide for uncertificated Securities in addition to or in
place of certificated Securities, or to add guarantees with respect to the
Securities, including Subsidiary Guaranties, or to secure the Securities, or to
add additional covenants or surrender rights and powers conferred on the Company
or the Subsidiary Guarantors, or to comply with any request of the SEC in
connection with qualifying the Indenture under the Act, or to make certain
changes in the subordination provisions, or to make any change that does not
adversely affect the rights of any Securityholder.

15. Defaults and Remedies

     Under the Indenture, Events of Default include (a) default for 30 days in
payment of interest on the Securities; (b) default in payment of principal on
the Securities at maturity, upon redemption pursuant to paragraph 5 or 6 of the
Securities, upon acceleration or otherwise, or failure by the Company to redeem
or purchase Securities when required; (c) failure by the Company or any
Subsidiary Guarantor to comply with other agreements in the Indenture or the
Securities, in certain cases subject to notice and lapse of time; (d) certain
accelerations (including failure to pay within any grace period

<PAGE>

                                                                               9

after final maturity) of other Indebtedness of the Company if the amount
accelerated (or so unpaid) exceeds US$10 million; (e) certain events of
bankruptcy or insolvency with respect to the Company and the Significant
Subsidiaries; (f) certain judgments or decrees for the payment of money in
excess of US$10 million; and (g) certain defaults with respect to Subsidiary
Guaranties. If an Event of Default occurs and is continuing, the Trustee or the
Holders of at least 25% in principal amount of the Securities may declare all
the Securities to be due and payable immediately. Certain events of bankruptcy
or insolvency are Events of Default which will result in the Securities being
due and payable immediately upon the occurrence of such Events of Default.

     Securityholders may not enforce the Indenture or the Securities except as
provided in the Indenture. The Trustee may refuse to enforce the Indenture or
the Securities unless it receives indemnity or security satisfactory to it.
Subject to certain limitations, Holders of a majority in principal amount of the
Securities may direct the Trustee in its exercise of any trust or power. The
Trustee may withhold from Securityholders notice of any continuing Default
(except a Default in payment of principal or interest) if it determines that
withholding notice is in the interest of the Holders.

16. Trustee Dealings with the Company

         Subject to certain limitations imposed by the Act, the Trustee under
the Indenture, in its individual or any other capacity, may become the owner or
pledgee of Securities and may otherwise deal with and collect obligations owed
to it by the Company or its Affiliates and may otherwise deal with the Company
or its Affiliates with the same rights it would have if it were not Trustee.

17. No Recourse Against Others

     A director, officer, employee or stockholder, as such, of the Company or
the Trustee shall not have any liability for any obligations of the Company
under the Securities or the Indenture or for any claim based on, in respect of
or by reason of such obligations or their creation. By accepting a Security,
each Securityholder waives and releases all such liability. The waiver and
release are part of the consideration for the issue of the Securities.

18. Authentication

     This Security shall not be valid until an authorized signatory of the
Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Security.

19. Abbreviations

     Customary abbreviations may be used in the name of a Securityholder or an
assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the
entireties), JT TEN (=joint tenants with rights of survivorship and not as
tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors
Act).

<PAGE>

                                                                              10

20. CUSIP Numbers

     Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures the Company has caused CUSIP numbers to be
printed on the Securities and has directed the Trustee to use CUSIP numbers in
notices of redemption as a convenience to Securityholders. No representation is
made as to the accuracy of such numbers either as printed on the Securities or
as contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

21. Holders' Compliance with Registration Rights Agreement

     Each Holder of a Security, by acceptance hereof, acknowledges and agrees to
the provisions of the Registration Rights Agreement, including the obligations
of the Holders with respect to a registration and the indemnification of the
Company to the extent provided therein.

22. Governing Law

     THIS SECURITY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE
LAWS OF THE STATE OF NEW YORK.

     The Company will furnish to any Securityholder upon written request and
without charge to the Security holder a copy of the Indenture which has in it
the text of this Security in larger type. Requests may be made to:

Axtel, S.A. de C.V.
Blvd. Diaz Ordaz km. 3.33 No. L-1
Col. Unidad San Pedro
San Pedro Garza Garcia, N.L.
Mexico, CP  66215
Telephone:  +52 (81) 8114-0000
Facsimile:  +52(81) 8114-1771
Attention:  Chief Financial Officer

<PAGE>

                                                                              11

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

                                 ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to

         (Print or type assignee's name, address and zip code)

         (Insert assignee's soc. sec. or tax I.D. No.)

and irrevocably appoint                   agent to transfer this Security on the
books of the Company.  The agent may substitute another to act for him.

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

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

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

--------------------------------------------------------------------------------
Sign exactly as your name appears on the other side of this Security.

<PAGE>

                                                                              12
                       OPTION OF HOLDER TO ELECT PURCHASE

     If you want to elect to have this Security purchased by the Company
pursuant to Section 4.06 or 4.10 of the Indenture, check the box:

     If you want to elect to have only part of this Security purchased by the
Company pursuant to Section 4.06 or 4.10 of the Indenture, state the amount in
principal amount: US$

Dated:                          Your Signature:
      -----------------------                    -------------------------------
                                                 (Sign exactly as your name
                                                  appears on the other
                                                  side of this Security.)

Signature Guarantee:
                     -----------------------------------------------------------
                                         (Signature must be guaranteed)

Signatures must be guaranteed by an "eligible guarantor institution" meeting the
requirements of the Registrar, which requirements include membership or
participation in the Security Transfer Agent Medallion Program ("STAMP") or such
other "signature guarantee program" as may be determined by the Registrar in
addition to, or in substitution for, STAMP, all in accordance with the
Securities Exchange Act of 1934, as amended.

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