Document:

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                  INTERCARRIER MULTI-STANDARD ROAMING AGREEMENT

         THIS AGREEMENT is effective as of the 25th day of January, 2002 by
CINGULAR WIRELESS LLC ("Cingular"), a limited liability company organized under
the laws of Delaware and acting under the authority and on behalf of its
Affiliates (collectively "Cingular Affiliates"); and by DOBSON' CELLULAR
SYSTEMS; INC. ("Dobson") on behalf of itself and its Affiliates (collectively
"Dobson Affiliates"). The parties will herein collectively be referred to as the
"Parties" or individually as a "Party." Each of the Parties either is, or
controls, a licensee or permittee of the Federal Communications Commission
("FCC") to offer Cellular Radiotelephone Service ("CRS") or Personal
Communications Service ("PCS"), as defined herein, under FCC regulations at 47
CFR Part 22 or Part 24. respectively.

                                    RECITALS

         WHEREAS, the Parties desire to make arrangements to facilitate the
provision of wireless roaming services by Cingular and Cingular Affiliates to
subscribers of Dobson or Dobson Affiliates ("Dobson Customers") who desire to
use Cingular and Cingular Affiliate systems and by Dobson and Dobson Affiliates
to subscribers of Cingular or Cingular Affiliates ("Cingular Customers') who
desire to use Dobson and Dobson Affiliate systems in accordance with the
Intercarrier Roaming Service Agreement, attached hereto as Exhibit 1, and the
PCS Roaming Agreement, attached hereto as Exhibit 2 (Exhibit 1 and Exhibit 2 are
hereby specifically incorporated herein); and

         WHEREAS, Cingular Affiliates and Dobson previously separately entered
into certain Intercarrier Roamer Service Agreements ("Roaming Agreements") with
each other for the

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provision of cellular radiotelephone service and/or personal communications
service to each other's subscribers; and

         WHEREAS, the Parties wish to amend and supersede those Roaming
Agreements and to define the wholesale service rates to be charged by Cingular
and the Cingular Affiliates to Dobson and the Dobson Affiliates and by Dobson
and the Dobson Affiliates to the Cingular and Cingular Affiliates for the
provision of roamer service to the other's subscribers;

         NOW, THEREFORE, in consideration of the promises herein set forth and
intending to be legally bound hereby, the Parties do hereby agree as follows:

         1. DEFINITIONS

                  (a) "Affiliate" means any entity that directly or indirectly,
         through one or more intermediaries, controls, is controlled by or is
         under common control with another entity. A Party's Affiliates also
         include any entities that control, are controlled by, or are under
         common control with; any other Affiliate of that Patty. For purposes of
         this Agreement, control shall be defined as (i) fifty percent (50%) or
         more ownership or beneficial interest of income and capital of such
         entity; or (ii) ownership of at least fifty percent (50%) of the voting
         power of voting equity; or (iii) sole or shared management by a general
         partner of the entity; or (iv) regardless of the percentage ownership
         interest held; the ability to otherwise direct management policies of
         such entity by contract or otherwise. Affiliate shall also mean Salmon
         PCS LCC ("Salmon") in which Cingular currently owns over a fifty
         percent (50%) equity interest but which company Cingular does not
         control. Dobson Affiliates shall also mean American Cellular
         Corporation and each of the majority owned subsidiaries or affiliates
         of American Cellular Corporation

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         ("American Cellular") so long as American Cellular is managed by Dobson
         without regard to any ownership of American Cellular by Dobson.

                  (b) "Agreement" means this Intercarrier Multistandard Roamer
         Service Agreement, including all exhibits attached hereto.

                  (c) "Cellular Radiotelephone Service" or "CRS" means a radio
         service in which common carriers are authorized by the FCC under 47 CFR
         Part 22 and licensed under 47 CFR Part 22, Subpart H to offer and to
         provide service for hire to the general public through a cellular
         system utilizing the channels and bandwidths assigned under 47 CFR Part
         22, Subpart H, Section 22.905.

                  (d) "GPRS" means General Packet Radio Service.

                  (e) "GSM Technology" means the Global System for Mobile
         Communications and GPRS.

                  (f) "GSM minute" means a minute of airtime registered on a
         Serving Carrier's GSM system.

                  (g) "Home Carrier" means a Party that is providing Wireless
         Service to its registered customers in a geographic area where it holds
         a license or permit for Wireless Service.

                  (h) "Personal Communications Service" or "PCS" means a radio
         service in which common carriers are authorized by the FCC and licensed
         under 47 CFR Part 24, Subpart F, as currently in effect to offer and to
         provide service for hire to the general public utilizing the following
         frequency bandwidths: 1850-1910 MHz and 1930-1990 MHz (Broadband PCS)
         and including GSM (the DCS 1900 protocol for the North

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         American System). PCS does not include Cellular Radiotelephone Service
         ("CRS") as herein defined.

                  (i) "Preferred Roaming Provider " shall mean that the Serving
         Carrier is the preferred carrier for the Home Carrier's Users when its
         Users are roaming in a market served by the Serving Carrier and where
         the Home Carrier does not provide service. To accomplish this
         preference, the Serving Carrier will use commercially reasonable
         efforts to place the Home Carrier's SID's and/or SOC's in a preferred
         position within all of their customers' TDMA handsets.

                  (j) "Roamer" means a customer who seeks wireless service from
         a Serving Carrier.

                  (k) "Serving Carrier" means a Party who provides wireless
         service for customers of another Party in the geographic area where the
         Serving Carrier holds a license or permit for Wireless Service.

                  (l) "SID" means the System identification number, a five-digit
         code administrated by CIBERNET and broadcast by a carrier for a
         customer receiving service from that carrier.

                  (m) "SOC" shall mean System Operating Code.

                  (n) "TDMA" means Time Division Multiple Access.

                  (o) "TDMA minute" means a minute of airtime registered on a
         Serving Carrier's TDMA system.

                  (p) "Wireless Service" means either CRS or PCS as is
         appropriate or technically feasible in the context it is used.

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         2. TERM OF AGREEMENT

         The initial term of this Agreement commences on the effective date
shown above and continues through December 31, 2011.

         3. GSM DEVELOPMENT AND BUILD-OUT

         As soon as reasonably practical, Dobson agrees to deploy GSM Technology
on 80% of the cell sites in the Dobson and Dobson Affiliate markets listed in
Exhibit 3. Additionally, in Dobson or Dobson Affiliates markets which are
contiguous to Cingular and Cingular Affiliate markets, Dobson will use
commercially reasonable efforts to deploy GSM Technology simultaneous with
Cingular's deployment of GSM Technology in those contiguous markets. Cingular
will provide Dobson with six (b) months notice of projected market deployment
dates. Dobson further agrees that it will deploy GSM Technology in any of
Dobson's future markets added to this Agreement. Nothing in this Agreement
restricts either party or its Affiliates from the deployment of GSM technology
in current or future markets where the other party is a Home Carrier; provided
that prior to a non-controlled Cingular Affiliate (e.g., Salmon) overbuilding
GSM Technology in one of Cingular's top five roaming markets with Dobson,
Cingular will use its best efforts to facilitate good faith negotiations between
Dobson and such Affiliate to discuss a network-sharing, arrangement in such
market.

         4. BROADCAST SIDS

                  (a) Dobson will discontinue the use of SID 00035 in Texas RSA
         16 and any other markets for which the SID is in use no later than
         April 30, 2002.

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                  (b) For as long as Dobson continues the use of SID 00013 in
         the Eastern Shore of Maryland market, Dobson shall prefer all Cingular
         markets which broadcast SID 00013 over any other TDMA or AMPS provider
         in those areas served by SID 00013.

         5. PREFERRED TDMA ROAMING

                  (a) Cingular and Cingular Affiliates will use commercially
         reasonable efforts to program the handsets provided to the Cingular
         Customers such that Dobson and Dobson Affiliates are the Preferred
         Roaming Providers in all Dobson and Dobson Affiliates TDMA markets,
         except in those markets where Cingular or a Cingular Affiliate is
         either (i) a Home Carrier or (ii) has a pre-existing contractual
         arrangements to prefer providers other than Dobson or Dobson Affiliates
         in these markets.

                  (b) Dobson and Dobson Affiliates will use commercially
         reasonable efforts to program the handsets provided to the Dobson
         Customers such that Cingular and Cingular Affiliates are the Preferred
         Roaming Providers in all Cingular and Cingular Affiliates TDMA markets,
         except in those markets where (i) Dobson or a Dobson Affiliate is a
         Home Carrier, (ii) AT&T Wireless Services or its affiliates provide
         Wireless Service or (iii) American Cellular provides Wireless Service.

         6. PREFERRED GSM ROAMING

                  (a) Beginning the later of January 1, 2004 or when GSM
         Technology allows carriers to select a preferred carrier on a market by
         market basis, Cingular and Cingular Affiliates will use commercially
         reasonable efforts to program the handsets provided to its customers
         such that Dobson and Dobson Affiliates are the Preferred Roaming
         Providers in all Dobson and Dobson Affiliates GSM markets, except in
         those markets where Cingular or a Cingular Affiliate is a Home Carrier
         or pre-existing contractual

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         arrangements otherwise provide. This commitment shall be applicable to
         a particular Dobson and Dobson Affiliate market upon Dobson's
         deployment of GSM Technology in eighty percent (80%) of its cell sites
         in that market.

                  (b) Dobson and Dobson Affiliates will use commercially
         reasonable efforts to program the handsets provided to its customers
         such that Cingular and Cingular Affiliates are the Preferred Roaming
         Providers in all Cingular and Cingular Affiliates GSM markets, except
         in those markets where (i) Dobson or a Dobson Affiliate is a Home
         Carrier, (ii) AT&T Wireless or its affiliates provide Wireless Service,
         or (iii) American Cellular provides Wireless Service.

         7. RATES

         The Parties agree to charge one another the following rates for the
roaming service provided under the attached Intercarrier Roamer Service
Agreement (Exhibit 1) to the other's customers:

                  (a) FEBRUARY 16, 2002 THROUGH DECEMBER 31, 2008

                  Effective February 16. 2002, the Parties shall apply the TDMA
         airtime and domestic toll rates set forth in this section for all
         Dobson Customers traveling to Cingular and Cingular Affiliate markets.

                           (i) The standard airtime rate is */minute.

                           (ii) The standard domestic toll rate is */minute.

                  (b) FEBRUARY 16, 2002 THROUGH DECEMBER 15, 2002

         Effective February 16, 2002, the Parties shall apply the TDMA airtime
and domestic toll rates set forth in this section when all Cingular Customers
traveling to the Dobson and Dobson

----------
* Confidential information has been omitted and filed separately with the
  Securities and Exchange Commission.

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Affiliate markets except for Eastern Shore, MD, and TX RSA 16 which are
addressed below in Section 7(e).

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

The parties agree that if the aggregate number of TDMA roaming minutes charged
for Cingular Customers using the Dobson or Dobson Affiliate market systems
between December 16, 2001 and December 15, 2002 equals or exceeds *  minutes.
then Dobson shall rebate Cingular the sum of * as a rebate for the year 2002.
After the usage level of minutes is reached, the Cingular  Customers TDMA
roaming rate under this Agreement for the balance of 2002 shall  be:

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

         (c) DECEMBER 16, 2002 THROUGH DECEMBER 15, 2003

         Effective December 16, 2002, the Parties shall apply the TDMA airtime
and domestic toll rates set forth in this section when all Cingular Customers
traveling to the Dobson and Dobson Affiliate markets except for Eastern Shore,
MD, and TX RSA 16 which are addressed below in Section 7(e).

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

         The parties agree that if the aggregate number of TDMA roaming minutes
charged for Cingular Customers using the Dobson or Dobson Affiliate market
systems between December 16, 2002 and December 15, 2003 equals or exceeds *
minutes, then Dobson shall rebate Cingular the sum of * as a rebate for the year
2003. After the usage level

----------

*    Confidential information has been omitted and filed separately with the
     Securities and Exchange Commission.

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of * minutes is reached, the Cingular Customers TDMA roaming rate
under this Agreement for the balance of 2003 shall be:

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

         (d) DECEMBER 16, 2003 THOUGH DECEMBER 15, 2008

         Effective December 16, 2003, the Parties shall apply the TDMA airtime
and domestic toll rates set forth in this section when all Cingular Customers
traveling to the Dobson and Dobson Affiliate markets except for Eastern Shore,
MD, and TX RSA 16 which are addressed below in Section 7(e).

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

         (e) CINGULAR ROAMING INTO EASTERN SHORE MD (SID 26319) AND TX 16 (SID
01721)

         Effective February 16, 2002 through June 15, 2003, the Parties shall
apply the TDMA airtime and domestic toll rates set forth in this section when
all Cingular Customers traveling to these markets shall be:

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

         Effective June 16, 2003 through December 15, 2003, the Parties shall
apply the TDMA airtime and domestic toll rates set forth in this section when
all Cingular Customers traveling to these markets shall be:

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

----------

* Confidential information has been omitted and filed separately with the
  Securities and Exchange Commission.

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                  Effective December 16, 2003 through December 31, 2008, the
         Parties shall apply the TDMA airtime and domestic toll rates set forth
         in this section when all Cingular Customers traveling to these markets
         shall be:

                  (i) The standard airtime rate is */minute.

                  (ii) The standard domestic toll rate is */minute.

The Parties will negotiate in good faith to agree upon rates by September 30,
2008 for the time period December 31, 2008 through December 31, 2011. If the
Parties are unable to reach agreement by September 30, 2008, this Agreement will
expire on December 31, 2008.

         (h) SHORT MESSAGE-SERVICE SMS)- FEBRUARY 16, 2002 THROUGH SEPTEMBER 16,
2002

                  Effective February 16, 2002, the parties agree to begin
         offering Mobile Terminated and Mobile Originated SMS Service. If either
         party develops the capability and desires to begin billing for SMS any
         time after September 16, 2002, it may notify the other party of its
         desire and the Parties agree to negotiate in good faith to agree upon a
         reciprocal rate for SMS. A default rate of * per message shall apply if
         the parties cannot agree upon an alternate rate.

                  (i) GSM RATES-FEBRUARY 16, 2002 THROUGH DECEMBER 31, 2008

                   Effective February 16, 2002, the Parties shall apply the
          airtime and domestic toll rates set forth in thus section when the
          minute being served is a GSM minute, as defined in the Agreement.

                           (i) The standard airtime rate is */minute.

                           (ii) The standard domestic toll rate is */minute.

----------

* Confidential information has been omitted and filed separately with the
  Securities and Exchange Commission.

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                  (k) GPRS

                   Effective February 16, 2002, the Parties shall apply the
          standard rate of * per kilobyte for GPRS service. The Parties agree to
          revisit the rate structure for GPRS service on or before December 16,
          2002 for the purpose of determining the GPRS rate for the remainder of
          the term of this Agreement.

                  (l) This Agreement does not set the International Toll rates
         that the Parties will charge one another.

                  (m) The rates specified herein can only be modified by mutual
         written agreement of the Parties hereto.

         8. TERMS AND CONDITIONS OF TDMA ROAMING

         Roaming between Cingular (or Cingular Affiliates) and Dobson (or Dobson
Affiliates) in their respective TDMA markets will be governed by the terms and
conditions set forth in Exhibit 1 entitled Intercarrier Roaming Service
Agreement. In the event of a conflict between the terms of Exhibit 1 and this
Agreement with respect to the terms and conditions for TDMA roaming, the terms
of Exhibit 1 shall control.

         9. TERMS AND CONDITIONS OF GSM ROAMING

         Roaming between Cingular (or Cingular Affiliates) and Dobson (or Dobson
Affiliates) in their respective GSM markets will be governed by the terms and
conditions set forth in Exhibit 2, entitled PCS Roaming Agreement. In the event
of a conflict between the terms of Exhibit 2 and this Agreement with respect to
the terms and conditions for GSM roaming, the terms of Exhibit 2 shall control.

----------

* Confidential information has been omitted and filed separately with the
  Securities and Exchange Commission.

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         10. ADDITION OR DELETION OF MARKETS. At any time, and from time to
time, either Party, upon proper written notice, may add additional Wireless
Service market(s) controlled, directly or indirectly, by a Party or its
Affiliate, provided that such markets are located within the United States,
including its territories or possessions, and are subject to the FCC's licensing
and regulatory rules. The procedure for addition or deletion of a market shall
be in accordance with the procedure outlined in Section 1.3 of Exhibit 1.

         11. DISPUTE RESOLUTION

         Disputes arising under this Agreement shall be governed by the dispute
resolution process set forth in Section 6 of Exhibit 1.

         12. DEFAULT

         A Party will be in default under this Agreement upon the occurrence of
any of the following events:

                  (a) Said Party's violation of any term of the Agreement
         (including the industry net settlement procedures, now administered by
         CIBERNET, incorporated herein by reference), if such violation shall
         continue for forty-five (45) days after written notice thereof;

                  (b) Said Parry's voluntary liquidation or dissolution;

                  (c) A final order by the FCC revoking or denying renewal of
         the wireless license granted to said Party;

                  (d) Said Party (i) files pursuant to a statute of the United
         States or of any state, a petition for bankruptcy or insolvency or for
         reorganization or for the appointment of a receiver or trustee of all
         or a portion of said Party's property, (ii) has filed against it

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         pursuant to a statute of the United States or of any state, a petition
         for bankruptcy or insolvency or for reorganization or for the
         appointment of a receiver or trustee of all or a portion of said
         Party's property, provided that within sixty (60) days after the filing
         of any such petition said Party fails to obtain a discharge hereof, or
         (iii) makes assignment for the benefit of creditors or petitions for or
         voluntarily enters into an arrangement of such nature, and provided
         that such filing, petition or appointment is still continuing.

                  (e) Violation of the obligations regarding Confidential
         Information contained in Exhibits l and 2.

         13. ENTIRE AGREEMENT

         The Agreement constitutes the full and complete agreement of the
Parties. Unless otherwise stated in this Agreement, any prior written or oral
agreements among the Parties with respect to this subject matter shall be
superseded and of no force and effect. This Agreement may not be modified or
otherwise amended except by the written consent of both Parties. Waiver of any
breach of any provision of the Agreement must be in writing signed by the
waiving Party and such waiver shall not be deemed to be a waiver of any
preceding or succeeding breach of the same or any other provision. The failure
of a Party to insist upon strict performance of a covenant or an obligation
under this Agreement shall not be a waiver of a Party's right to demand strict
compliance therewith in the future.

         14. PARAGRAPH HEADINGS

         The headings in the Agreement are inserted for convenience and
identification only and are not intended to describe, interpret, define or limit
the scope, extent or intent of the Agreement or any provision hereof.

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         15. ORIGINAL COUNTERPARTS

         This Agreement may be executed in counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same
Agreement.

         16. CONTROLLING LAW

         Disputes concerning service provided under thus Agreement shall be
construed in accordance with the internal laws of the state of Delaware.

         17. SUCCESSOR AND ASSIGNS

         This Agreement shall be binding upon and shall inure to the benefit of
the Parties, their Affiliates and their respective successor and permitted
assigns. No Party or Affiliate may assign their rights herein without the
written consent of the Party (or non-Affiliated Party as the case may be), such
consent not to be unreasonably withheld.

         18. EXHIBITS

         Dobson and Cingular will negotiate in good faith between signing and
April 30, 2002 to finalize Exhibit 1 and Exhibit 2 referred to in the Agreement.

         IN WITNESS WHEREOF, the Parties have caused this Agreement to be
executed by their duly authorized representatives:

DOBSON CELLULAR SYSTEMS, INC.               CINGULAR WIRELESS LLC

Date:  1-25-02                              Date:  1-25-02
      --------------------------------            ------------------------------

Signature:  /s/ Everett Dobson              Signature:  /s/ Frank Boyer
           ---------------------------                 -------------------------

Name:  Everett Dobson                       Name:  Frank Boyer
      --------------------------------            ------------------------------

Title:  Chairman and CEO                    Title:  Vice President-Supply Chain
       -------------------------------             -----------------------------

                                       14<PAGE>
                                                                  EXHIBIT 10.4.3

                       THIRD AMENDMENT TO CREDIT AGREEMENT

         THIS THIRD AMENDMENT TO CREDIT AGREEMENT (this "AMENDMENT") is entered
into as of September 27, 2001, among AMERICAN CELLULAR CORPORATION (SUCCESSOR BY
MERGER TO ACC ACQUISITION CO.), a Delaware corporation ("BORROWER"), Required
Lenders under the Credit Agreement (hereinafter defined), BANK OF AMERICA, N.A.,
in its capacity as Administrative Agent for the Lenders under the Credit
Agreement ("ADMINISTRATIVE AGENT"), and Guarantors under the Credit Agreement
(hereinafter defined).

         Reference is made to the Credit Agreement, dated as of February 25,
2000 (as amended, modified, supplemented, or restated from time to time, the
"CREDIT AGREEMENT"), among Borrower, as Borrower, Administrative Agent, CIBC
World Markets Corp. and Barclays Bank PLC, as Co-Documentation Agents, Lehman
Commercial Paper Inc. and TD Securities (USA) Inc., as Co-Syndication Agents,
and certain Managing Agents, Co-Agents, and Lenders party thereto.

         Unless otherwise defined in this Amendment, capitalized terms used
herein shall have the meaning set forth in the Credit Agreement. Unless
otherwise indicated, all Section references herein are to Sections of the Credit
Agreement and all Paragraph references herein are to Paragraphs in this
Amendment.

                                    RECITALS

         A. Borrower has requested the consent of Required Lenders to the sale
of the Tennessee 4 RSA (the "TENNESSEE 4 DIVESTITURE"), so long as the Net Cash
Proceeds therefrom are immediately used to make a mandatory prepayment pursuant
to the terms of the Credit Agreement.

         B. Borrower has requested modification to certain financial covenants
for the third quarter and fourth quarter of 2001 and certain amendments to the
definition of Interest Expense to reflect the Tennessee 4 Divestiture.

         C. The Lenders party hereto are willing to grant and agree to such
amendments, but only upon the conditions, among other things, that Borrower,
Guarantors, and Required Lenders shall have executed and delivered this
Amendment and shall have agreed to the terms and conditions of this Amendment.

         NOW, THEREFORE, in consideration of these premises and other valuable
consideration, the receipt and adequacy of which are hereby acknowledged, the
parties hereto agree, as follows:

PARAGRAPH 1.      AMENDMENTS.

         1.1       DEFINITIONS.

         (a) The definition of Interest Expense is amended to exclude the
interest incurred on the amount of Principal Debt permanently prepaid with the
Net Cash Proceeds of the Tennessee 4 Divestiture by adding the following as a
proviso thereto:

         "; provided further that, in determining the Interest Expense for the
         Companies (i) for the fiscal quarter during which the Tennessee 4
         Divestiture was consummated (the "DIVESTITURE CONSUMMATION QUARTER"),
         such amount shall be reduced by an amount

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         equal to (x) the Principal Debt permanently prepaid with the Net Cash
         Proceeds from the Tennessee 4 Divestiture multiplied by (y) the
         weighted average of the interest rates in effect for the Principal Debt
         on the date the Tennessee 4 Divestiture was consummated (such
         calculation being referred to herein as the "REDUCTION AMOUNT"), (ii)
         for the first fiscal quarter immediately following the Divestiture
         Consummation Quarter, such amount shall be reduced by an amount equal
         to the Reduction Amount multiplied by 3/4, (iii) for the second fiscal
         quarter immediately following the Divestiture Consummation Quarter,
         such amount shall be reduced by an amount equal to the Reduction Amount
         multiplied by 1/2, and (iv) for the third fiscal quarter immediately
         following the Divestiture Consummation Quarter, such amount shall be
         reduced by an amount equal to the Reduction Amount multiplied by 1/4."

         (b) The definition of "Net Cash Proceeds" is amended to include the
Tennessee 4 Divestiture by inserting the phrase "the Tennessee 4 Divestiture,"
immediately prior to the phrase "the Tower Sale-Leaseback".

         (c) The definition of "Significant Sale" is amended to exclude the
Tennessee 4 Divestiture as a Significant Sale by amending the parenthetical
phrase in the third line of such definition to read as follows:

         "(other than the Laredo Joint Venture Sale, the Tennessee 4
         Divestiture, any Intercompany Acquisition, and any sale, lease,
         transfer, or other disposition contemplated by SECTIONS 9.23(a) through
         (e) or contemplated by SECTION 9.24)"

         (d) The following definition of "Tennessee 4 Divestiture" shall be
alphabetically inserted in SECTION 1.1 to read as follows:

         "TENNESSEE 4 DIVESTITURE means the sale of assets relating to the
         Tennessee 4 RSA on terms reasonably acceptable to Administrative Agent
         and which otherwise satisfies the requirements of SECTION 9.23(j)."

         1.2 MANDATORY PREPAYMENTS. SECTION 3.3(b)(iv) is amended in its
entirety to read as follows:

                  "(iv) Tennessee 4 Divestiture. Immediately upon the receipt by
                  any Company of any Net Cash Proceeds from the consummation of
                  the Tennessee 4 Divestiture, the Principal Debt shall be
                  prepaid (and the Revolver Commitment reduced to the extent
                  required in this SECTION 3.3(b)), in the order and manner
                  specified herein, by an amount equal to 100% of such Net Cash
                  Proceeds received from the Tennessee 4 Divestiture."

         1.3 SALE OF ASSETS. SECTION 9.23 is amended by (a) deleting the word
"and" after CLAUSE (i) thereof, (b) relettering existing CLAUSE (j) as CLAUSE
(k), (c) deleting the reference to "clause (j)" in CLAUSE (x) of the proviso to
such Section and substituting therefor "clause (k)", and (d) adding the
following CLAUSE (j) immediately after CLAUSE (i):

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                  "(j) the Tennessee 4 Divestiture, so long as (i) no Default or
                  Potential Default exists or arises as a result therefrom, (ii)
                  the assets sold pursuant to the Tennessee 4 Divestiture are
                  sold for fair value for cash or Cash Equivalents and not by
                  way of deferred payment, (iii) a copy of the sale agreement
                  relating to the Tennessee 4 Divestiture has been delivered to
                  Administrative Agent not less than 30 days prior to the
                  closing thereof and the terms thereof are reasonably
                  acceptable to Administrative Agent, and (iv) the mandatory
                  prepayment required by SECTION 3.3(b)(iv) is made; and".

         1.4     FINANCIAL COVENANTS.

         (a) The Debt Service Coverage Ratio covenant set forth in SECTION
9.30(b) for the period on and after September 30, 2001, to and including
December 30, 2001, is amended by replacing 1.10 to 1.00 with 1.075 to 1.00.

         (b) The Total Leverage Ratio covenant set forth in SECTION 9.30(f), is
amended as follows: (i) for the period on and after September 30, 2001, to and
including December 30, 2001, replace 9.85 to 1.00 with 10.50 to 1.00 and (ii)
for the period on and after December 31, 2001, to and including March 30, 2002,
replace 9.25 to 1.00 with 10.10 to 1.00.

PARAGRAPH 2. AMENDMENT FEES. On the Effective Date (hereinafter defined),
Borrower shall pay (a) to Administrative Agent (for the ratable benefit of the
Revolver Lenders consenting to this Amendment on or prior to September 27, 2001,
the "CONSENTING REVOLVER LENDERS"), an amendment fee in an amount equal to 0.15%
of the aggregate Committed Sums under the Revolver Facility of each Consenting
Revolver Lender as of the Effective Date and (b) to Administrative Agent (for
the ratable benefit of the Term Loan A Lenders, the Term Loan B Lenders, and the
Term Loan C Lenders consenting to this Amendment on or prior to September 27,
2001, the "CONSENTING TERM LOAN LENDERS"), an amendment fee in an amount equal
to 0.15% of the portion of the Term Loan Principal Debt owed to the Consenting
Term Loan Lenders as of the Effective Date. The failure of Borrower to comply
with the provisions of this PARAGRAPH 2 shall constitute a payment Default
entitling Lenders to exercise their respective Rights under the Loan Documents.

PARAGRAPH 3. CONDITIONS. This Amendment shall be effective on the date (the
"EFFECTIVE DATE") upon which (i) the representations and warranties in this
Amendment are true and correct; (ii) Administrative Agent receives counterparts
of this Amendment executed by Borrower, each Guarantor, and Required Lenders;
and (iii) Administrative Agent has received payment from Borrower of the
amendment fees required to be paid to Consenting Revolver Lenders, Consenting
Term Loan Lenders, and Administrative Agent on the Effective Date pursuant to
PARAGRAPH 2 hereof.

PARAGRAPH 4. ACKNOWLEDGMENT AND RATIFICATION. As a material inducement to
Administrative Agent and the Lenders to execute and deliver this Amendment,
Borrower and each Guarantor (i) consent to the agreements in this Amendment and
(ii) agree and acknowledge that the execution, delivery, and performance of this
Amendment shall in no way release, diminish, impair, reduce, or otherwise affect
the respective obligations of Borrower or Guarantors under their respective
Collateral Documents, which Collateral Documents shall remain in full force and
effect, and all Liens, guaranties, and Rights thereunder are hereby ratified and
confirmed.

PARAGRAPH 5. REPRESENTATIONS. As a material inducement to Administrative Agent
and Lenders to execute and deliver this Amendment, Borrower, Parent, and each
other Guarantor represent and warrant to such parties (with the knowledge and
intent that the Lenders and Administrative Agent are relying upon the same in
entering into this Amendment) that as of the Effective Date (as the case may be)
and as of the date of execution of this Amendment: (a) all representations and
warranties in the Loan Documents are true and correct in all material respects
as though made on the date hereof, except to the extent that (i) any of them
speak to a different specific date or (ii) the facts on which any of them were

                                       3
<PAGE>

based have been changed by transactions permitted by the Loan Documents; (b) no
Default or Potential Default exists; and (c) this Amendment has been duly
authorized and approved by all necessary corporate and limited liability company
action and requires the consent of no other Person, and upon execution and
delivery, this Amendment shall be binding and enforceable against Borrower,
Parent, and each other Guarantor in accordance with its terms.

PARAGRAPH 6. EXPENSES. Borrower shall pay all costs, fees, and expenses paid or
incurred by Administrative Agent incident to this Amendment, including, without
limitation, the reasonable fees and expenses of Administrative Agent's counsel
in connection with the negotiation, preparation, delivery, and execution of this
Amendment and any related documents.

PARAGRAPH 7. MISCELLANEOUS.

         7.1 This Amendment is a "Loan Document" referred to in the Credit
Agreement, and the provisions of SECTIONS 13 of the Credit Agreement are
incorporated herein by reference. Unless stated otherwise (a) the singular
number includes the plural and vice versa and words of any gender include each
other gender, in each case, as appropriate, (b) headings and captions may not be
construed in interpreting provisions, (c) this Amendment must be construed, and
its performance enforced, under New York law, and (d) this Amendment may be
executed in any number of counterparts with the same effect as if all
signatories had signed the same document, and all of those counterparts must be
construed together to constitute the same document.

         7.2 The Loan Documents shall remain unchanged and in full force and
effect, except as provided in this Amendment, and are hereby ratified and
confirmed. On and after the Effective Date, all references to the "Credit
Agreement" shall be to the Credit Agreement as herein amended. The execution,
delivery, and effectiveness of this Amendment shall not, except as expressly
provided herein, operate as a waiver of any Rights of Lenders under any Loan
Document, nor constitute a waiver under any of the Loan Documents.

PARAGRAPH 8. ENTIRETIES. THIS AMENDMENT REPRESENTS THE FINAL AGREEMENT BETWEEN
THE PARTIES ABOUT THE SUBJECT MATTER OF THIS AMENDMENT AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE
PARTIES.

PARAGRAPH 9. PARTIES. This Amendment binds and inures to Borrower, Parent,
Administrative Agent, Lenders, Guarantors, and their respective successors and
assigns.

         The parties hereto have executed this Amendment in multiple
counterparts as of the date set forth above, but effective as of Effective Date.

                     [REMAINDER OF PAGE INTENTIONALLY BLANK.
                            SIGNATURE PAGES FOLLOW.]

                                       4
<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                    AMERICAN CELLULAR CORPORATION (SUCCESSOR BY
                                    MERGER TO ACC ACQUISITION CO.), as Borrower

                                    By:   /s/ Richard Sewell
                                       ----------------------------------------
                                       Name:  Richard Sewell
                                            -----------------------------------
                                       Title: Asst. Treasurer
                                             ----------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                    ACC ACQUISITION , LLC, Parent, by its
                                    Members, as Guarantor

                                    AT&T WIRELESS SERVICES JV CO.

                                    By:    /s/
                                       ----------------------------------------
                                       Name:
                                            -----------------------------------
                                       Title:
                                             ----------------------------------

                                    DOBSON JV COMPANY

                                    By:    /s/ Richard Sewell
                                       ----------------------------------------
                                       Name:   Richard Sewell
                                            -----------------------------------
                                       Title:  Asst. Treasurer
                                             ----------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                   GUARANTOR:

                                   ACC OF KENTUCKY LLC
                                   ACC KENTUCKY LICENSE LLC
                                   ACC OF MICHIGAN CORPORATION
                                   ACC MICHIGAN LICENSE LLC
                                   ACC OF MINNESOTA CORPORATION
                                   ACC MINNESOTA LICENSE LLC
                                   ACC NEW YORK LICENSE I LLC
                                   ACC NEW YORK LICENSE II LLC
                                   ACC NEW YORK LICENSE III LLC
                                   ACC OF OHIO CORPORATION
                                   ACC OHIO LICENSE LLC
                                   ACC OF PENNSYLVANIA LLC
                                   ACC PENNSYLVANIA LICENSE LLC
                                   ACC OF TENNESSEE LLC
                                   ACC TENNESSEE LICENSE LLC
                                   ACC OF WAUSAU CORPORATION
                                   ACC WAUSAU LICENSE LLC
                                   ACC OF WEST VIRGINIA CORPORATION
                                   ACC WEST VIRGINIA LICENSE LLC
                                   ACC OF WISCONSIN LLC
                                   ACC WISCONSIN LICENSE LLC
                                   ALEXANDRA CELLULAR CORPORATION
                                   ALTON CELLTELCO CELLULAR CORPORATION
                                   ALTON CELLTELCO PARTNERSHIP
                                   AMERICAN CELLULAR WIRELESS LLC
                                   CELLULAR INFORMATION SYSTEMS OF LAREDO, INC.
                                   CHILL CELLULAR CORPORATION
                                   DUTCHESS COUNTY CELLULAR TELEPHONE
                                     COMPANY, INC.
                                   PCPCS CORPORATION

                                   By:    /s/ Richard Sewell
                                      ----------------------------------------
                                      Name:   Richard Sewell
                                           -----------------------------------
                                      Title:  Asst. Treasurer
                                            ----------------------------------
                                            (for all of the above-referenced
                                             Guarantors)

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                   BANK OF AMERICA, N.A., as Administrative
                                   Agent and a Lender

                                   By:   /s/
                                       ----------------------------------------
                                       Name:
                                            -----------------------------------
                                       Title:
                                              ---------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                                                               ,
                                   --------------------------------------------
                                   as a Lender

                                   By:       /s/
                                       ----------------------------------------
                                       Name:
                                            -----------------------------------
                                       Title:
                                             ----------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                                                               ,
                                   --------------------------------------------
                                   as a Lender

                                   By:        /s/
                                       ----------------------------------------
                                       Name:
                                            -----------------------------------
                                       Title:
                                             ----------------------------------

                                   By:        /s/
                                       ----------------------------------------
                                       Name:
                                            -----------------------------------
                                       Title:
                                             ----------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT
<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                                                               ,
                                   --------------------------------------------
                                   as a Lender

                                   By:          /s/                            ,
                                       ----------------------------------------
                                       its
                                          -------------------------------------

                                       By:      /s/
                                           ------------------------------------
                                           Name:
                                                -------------------------------
                                           Title:
                                                 ------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                                                               ,
                                   --------------------------------------------
                                   as a Lender

                                   By:            /s/                          ,
                                       ----------------------------------------
                                       its
                                          -------------------------------------

                                       By:        /s/
                                           ------------------------------------
                                           Name:
                                                -------------------------------
                                           Title:
                                                 ------------------------------

                                       By:        /s/
                                           ------------------------------------
                                           Name:
                                                -------------------------------
                                           Title:
                                                 ------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

                                                                               ,
                                   --------------------------------------------
                                   as a Lender

                                   By:            /s/                          ,
                                       ----------------------------------------
                                       as
                                         --------------------------------------

                                       By:        /s/
                                           ------------------------------------
                                           Name:
                                                -------------------------------
                                           Title:
                                                 ------------------------------

                        SIGNATURE PAGE TO THIRD AMENDMENT

<PAGE>

Signature Page to that certain Third Amendment to Credit Agreement dated as of
the date first stated above, among American Cellular Corporation (successor by
merger to ACC Acquisition Co.), as Borrower, Bank of America, N.A., as
Administrative Agent, Required Lenders, and Guarantors.

--------------------------------------------,
as a Lender

By:                                         ,
    ----------------------------------------
    as
      --------------------------------------

    By:         /s/
        ------------------------------------
        Name:
             -------------------------------
        Title:
              ------------------------------

    By:         /s/
        ------------------------------------
        Name:
             -------------------------------
        Title:
              ------------------------------

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