Document:

<PAGE>

                                                                 Exhibit 10.9.1

                          AMERICAN CELLULAR CORPORATION

                                  July 5, 2000

VIA FAX (972) 733-6155

Ms. Lisa Guarnasci Nicol
Southwestern Bell Mobile Systems, Inc.
17330 Preston Road, Suite 100A
Dallas, TX 75252

     Re:  Intercarrier Roamer Service Agreement (IRSA) between Southwestern Bell
          Mobile Systems, Inc. and PriCellular Corporation d/b/a Cellular One
          (now American Cellular Wireless, LLC), dated June 16, 1997

Dear Lisa:

     This letter is to confirm that upon the transfer of the American Cellular
Corporation markets described in my earlier letter of June 14, 2000 to affiliate
status under the intercarrier agreement between Southwestern Bell Mobile
Systems, Inc. and Dobson Cellular Systems, Inc., the above described agreement
between Southwestern Bell Mobile Systems, Inc. and American Cellular Wireless,
LLC should be terminated.

     You have advised me that this change will be effective as of July 16, 2000.

     All of the presently agreed to rate schedules, including scheduled changes,
under the Southwestern Bell Mobile Systems, Inc. agreement with Dobson Cellular
Systems, Inc. shall be applicable to the American markets and Dobson markets.

         Please acknowledge Southwestern Bell Mobile Systems, Inc.'s concurrence
by signing below and return via fax at (405) 529-8462.

Respectfully,                           Acknowledged and Concurred:

                                        Southwestern Bell Mobile Systems, Inc.

/s/ Ronald L. Ripley
---------------------------
Ronald L. Ripley
Senior Corporate Counsel                By: /s/ Lisa Guarnacci
and Secretary of                           -------------------------------
American Cellular Corporation           Name: Lisa Guarnacci
                                             -----------------------------
                                        Title: Director - ICS
                                              ----------------------------
                                        Date: 7-5-00
                                             -----------------------------

RLR:sed

cc:  Ms. Tina Durant
     Ms. Trish Sweet

<PAGE>

                                  ATTACHMENT E
                         (Additions Denoted by Shading)

<TABLE>
<CAPTION>
     SID                   CITY           STATE       MSA/RSA        MARKET OWNER
     ---                   ----           -----       -------        ------------
<S>                 <C>                   <C>         <C>            <C>
    1592                 Cheyenne           OK        RSA 5 & 7      Dobson Cellular Systems, Inc.
     341                   Enid             OK           MSA         Dobson Cellular Systems, Inc. d/b/a CellularOne
    1251                Leavenworth         KS          RSA 5        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1395                 Maryville          MO          RSA 1        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1401                  Cameron           MO          RSA 4        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1401                Linn County         MO          RSA 5        Dobson Cellular Systems. Inc. d/b/a CellularOne
    1707                 Brownwood          TX          RSA 9        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1709                 Corsicana          TX         RSA 10        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1721                 El Campo           TX         RSA 16        Dobson Cellular Systems. Inc. d/b/a CellularOne
    30337                Woodward           OK          RSA 2        Dobson Cellular Systems, Inc. d/b/a CellularOne
    30953                 Cameron           TX         RSA 10        Dobson Cellular Systems, Inc. d/b/a CellularOne
    30969              Marble Falls         TX         RSA 10        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1321                Deep Creek          MD          RSA 1        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1325                 Frederick          MD          RSA 3        Dobson Cellular Systems, Inc. d/b/a CellularOne
    26319              Eastern Shore        MD          RSA 2        Dobson Cellular Systems, Inc. d/b/a CellularOne
    30891               Hagerstown          MD           MSA         Dobson Cellular Systems, Inc. d/b/a CellularOne
    30893               Cumberland          MD           MSA         Dobson Cellular systems, Inc. d/b/a CellularOne
    30895                 Bedford           PA         RSA 10W       Dobson Cellular Systems, Inc. d/b/a CellularOne
    1559                 Sandusky           OH          RSA 2        Dobson Cellular Systems, Inc. d/b/a AirTouch
    1335               Traverse City        MI          RSA 3        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1349                   Caro             MI         RSA 10        Dobson Cellular Systems, Inc. d/b/a CellularOne
     89                 Youngstown          OH           MSA         Sygnet Communications, Inc. d/b/a CellularOne
    1509                 Jamestown          NY          RSA 3        Sygnet Communications, Inc. d/b/a CellularOne
    1611                 Meadville          PA          RSA 1        Sygnet Communications, Inc. d/b/a CellularOne
    1621                 Lawrence           PA          RSA 6        Sygnet Communications, Inc. d/b/a CellularOne
    1623                  Indiana           PA          RSA 7        Sygnet Communications, Inc. d/b/a CellularOne
    30067                  Erie             PA           MSA         Sygnet Communications, Inc. d/b/a CellularOne
    30303                 Butler            PA          RSA 6        Sygnet Communications, Inc. d/b/a CellularOne
    30395                 Sharon            PA           MSA         Sygnet Communications, Inc. d/b/a CellularOne
    30397                 Poland            OH           MSA         Sygnet Communications, Inc. d/b/a CellularOne
    30421             East Liverpool        OH         RSA 11        sygnet Communications, Inc. d/b/a CellularOne
    30471                 Clarion           PA          RSA 6        Sygnet Communications, Inc. d/b/a CellularOne
    30495                 Batavia           NY          RSA 3        Sygnet Communications, Inc. d/b/a CellularOne
    30497              Bath/Corning         NY          RSA 3        Sygnet CommunicatIons, Inc. d/b/a CellularOne
    30503                 Warren            PA          RSA 1        Sygnet Communications, Inc. d/b/a CellularOne
    30627                  Olean            NY          RSA 3        Sygnet Communications, Inc. d/b/a CellularOne
    1072              Imperial Valley       CA          RSA 7        Dobson Cellular Systems, Inc. d/b/a AirTouch
    1017                 Fairbanks          AK          RSA 1        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1023                  Kingman           AZ          RSA 1        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1065                  Merced            CA          RSA 4        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1971                  Juneau            AK          RSA 3        Dobson Cellular Systems, Inc. d/b/a CellularOne
    30247                 Madera            CA          RSA 4        Dobson Cellular Systems, Inc. d/b/a CellularOne
    30879               San Benito          CA          RSA 4        Dobson Cellular Systems, Inc. d/b/a CellularOne
    31045                  Sitka            AK          RSA 3        Dobson Cellular Systems, Inc. d/b/a CellularOne
    31047                Ketchikan          AK          RSA 3        Dobson Cellular Systems, Inc. d/b/a CellularOne
    1032                Casa Grande         AZ          RSA 5        Gila River Cellular General Partnership d/b/a AirTouch
    30017               Santa Cruz          CA           MSA         Santa Cruz Cellular TelephONE, Inc. d/b/a CellularOne

Managed Markets
---------------
 North Region
    1339                 Manistee           MI          RSA 5        Managed for Radiofone

</TABLE>

                                       1<PAGE>

                                                                  EXHIBIT 10.9.2

                         AMERICAN CELLULAR CORPORATION

June 14, 2000

Southwestern Bell Mobile Systems, Inc.
Attn: Ryan Gibson
17330 Preston Road, Suite 100A
Dallas, TX 75252

Re: Intercarrier Roamer Service Agreement (IRSA) between Southwestern Bell
Mobile Systems, Inc. and PriCellular Corporation d/b/a Cellular One (now
American Cellular Wireless, LLC), dated June 16, 1997.

Dear Ryan:

The purpose of this letter is to request that all American Cellular
Corporation's NPA/NXXs be loaded into Southwestern Bell Mobile Systems, Inc.'s
switch and billing tables to allow crossband roaming.

The effective date will be July 16, 2000.

American Cellular Corporation NPA/NXXs are:

See attached Technical Data Sheet.

All exchanges are to be routed to the Fraud Manager point code for validations
until such time as direct switch to switch validations can be implemented.

Please acknowledge Southwestern Bell Mobile Systems, Inc.'s concurrence by
signing below and returning via fax at 405/529-8462.

Respectfully,                           Acknowledged and Concurred:

                                        Southwestern Bell Mobile Systems, Inc.
/s/ Ronald L. Ripley                    By: /s/ Lisa Guarnaco
--------------------                        ----------------------------
Ronald L. Ripley                         Name: Lisa Guarnaco
Senior Corp. Counsel and                      --------------------------
Vice President                          Title: Director-ICS
                                               -------------------------
cc: Tina Durant                         Date: 7-6-00
    Trish Sweet                               --------------------------

<PAGE>

<TABLE>
<CAPTION>
                                                                                                                Page 1 of 3

                            AMERICAN CELLULAR WIRELESS, LLP TECHNICAL DATA SHEET FOR JUNE 9, 2000

STATE              SERVICE AREA       RSA    SID/BID   NPA/NXX     RANGE         MSCID        CLLI CODE      EXM          SPC
              --------------------------------------------------------------------------------------------------------------------
<S>                <C>                <C>    <C>       <C>       <C>         <C>             <C>           <C>        <C>
KENTUCKY           ALTON IL           MSA      245     618-626   0000-9999   00333-004-000   WAUSWITINTA   WAUTINT    227-187-224
              --------------------------------------------------------------------------------------------------------------------
                   BEREA KY           KY-6    1283     606-302   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   LIBERTY KY         KY-6    1283     606-303   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   LANCASTER KY       KY-6    1283     606-304   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   SOMERSET KY        KY-6    1283     606-305   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MT. VERNON KY      KY-6    1283     606-308   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   LONDON KY          KY-6    1283     606-309   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RICHMOND KY        KY-6    1283     606-314   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RICHMOND KY        KY-6    1283     606-308   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   STANFORD KY        KY-6    1283     606-510   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   DANVILLE KY        KY-6    1283     606-516   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RICHMOND KY        KY-6    1283     606-544   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   SOMERSET KY        KY-6    1283     606-872   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   SOMERSET KY        KY-6    1283     606-875   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   BEREA KY           KY-6    1283     606-302   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   LANCASTER KY       KY-6    1283     606-304   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RICHMOND KY        KY-6    1283     606-314   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RICHMOND KY        KY-6    1283     606-308   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   DANVILLE KY        KY-6    1283     606-516   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RICHMOND KY        KY-6    1283     606-544   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
              --------------------------------------------------------------------------------------------------------------------
NEW NPA/NXX        RADCLIFF KY        KY-4    30463    270-219   0000-9999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RADCLIFF KY        KY-4    30463    270-272   0000-1999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   RADCLIFF KY        KY-4    30463    270-352   0000-6999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   ELIZABETHTOWN KY   KY-4    30463    270-401   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   ELIZABETHTOWN KY   KY-4    30463    270-402   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   ELIZABETHTOWN KY   KY-4    30463    270-403   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   GREENSBURG KY      KY-4    30463    270-405   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   ELIZABETHTOWN KY   KY-4    30463    270-723   0000-9999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   BARDSTOWN KY       KY-4    30463    270-507   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   LAWRENCEBURG KY    KY-4    30463    270-604   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   LAWRENCEBURG KY    KY-4    30463    270-837   0000-9999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   TAYLORSVILLE KY    KY-4    30463    270-902   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   SPRINGFIELD KY     KY-4    30463    270-481   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   HARRODSBURG KY     KY-4    30463    270-613   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   SPRINGFIELD KY     KY-4    30463    270-481   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   HARRODSBURG KY     KY-4    30463    270-613   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
              --------------------------------------------------------------------------------------------------------------------
                   VANCEBURG KY       KY-8    30785    606-202   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MT. OLIVET KY      KY-8    30785    606-202   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MOREHEAD KY        KY-8    30785    606-207   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   FLEMINGSBURG KY    KY-8    30785    606-209   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   OWINGSVILLE KY     KY-8    30785    606-210   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   BROOKSVILLE KY     KY-8    30785    606-217   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   WASHINGTON KY      KY-8    30785    606-301   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MT. STERLING KY    KY-8    30785    606-404   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   CARLISLE KY        KY-8    30785    606-405   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MAYSVILLE KY       KY-8    30785    606-407   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MT. STERLING KY    KY-8    30785    606-404   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   CARLISLE KY        KY-8    30785    606-405   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
              --------------------------------------------------------------------------------------------------------------------
                   COLUMBIA KY        KY-5    30787    270-250   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   BURKESVILLE KY     KY-5    30787    270-406   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   TOMPKINSVILLE KY   KY-5    30787    270-407   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MUNFORDVILLE KY    KY-5    30787    270-528   0000-0999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MUNFORDVILLE KY    KY-5    30787    270-528   0000-3999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
NEW NPA/NXX RANGE  GLASGOW KY         KY-5    30787    270-537   0000-0999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   GLASGOW KY         KY-5    30787    270-576   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   ALBANY KY          KY-5    30787    270-306   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   MONTICELLO KY      KY-5    30787    270-307   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
                   WHITLEY CITY KY    KY-5    30787    270-310   0000-8999   01283-001-000   RCMDKY25CM1   RICTINT    227-097-249
----------------------------------------------------------------------------------------------------------------------------------
   MICHIGAN        MARQUETTE MI       MI-1    30931    906-360   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   MARQUETTE MI       MI-1    30931    906-361   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   MARQUETTE MI       MI-1    30931    906-362   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   IRONWOOD MI        MI-1    30931    906-364   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   BERGLAND MI        MI-1    30931    906-365   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   WATERSMEET MI      MI-1    30931    906-366   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   IRON RIVER MI      MI-1    30931    906-367   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   POWERS MI          MI-1    30931    906-368   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   CALUMET MI         MI-1    30931    906-369   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   HOUGHTON MI        MI-1    30931    906-370   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   CHAMPION MI        MI-1    30931    906-371   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   BIG BAY MI         MI-1    30931    906-373   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   STEPHENSON MI      MI-1    30931    906-374   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   ONTONAGON MI       MI-1    30931    906-390   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   BLUE CROSSING MI   MI-1    30931    906-391   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   MARINESCO MI       MI-1    30931    906-392   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   FELCH MI           MI-1    30931    906-393   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   FENCE RIVER MI     MI-1    30931    906-394   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   BARAGA MI          MI-1    30931    906-395   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   FELCH MI           MI-1    30931    906-396   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   FELCH MI           MI-1    30931    906-397   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
                   MARQUETTE MI       MI-1    30931    906-779   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT    227-187-224
----------------------------------------------------------------------------------------------------------------------------------

<CAPTION>

STATE              SERVICE AREA           CUST. SVC.        ROAMER PORT
--------------------------------------------------------------------------
<S>                <C>                  <C>               <C>
KENTUCKY           ALTON IL             (715) 355-7776    (818) 626-7626
--------------------------------------------------------------------------
                   BEREA KY             (859) 625-7600    (859) 544-7626
                   LIBERTY KY           (859) 625-7600    (859) 544-7626
                   LANCASTER KY         (859) 625-7600    (859) 544-7626
                   SOMERSET KY          (859) 625-7600    (859) 544-7626
                   MT. VERNON KY        (859) 625-7600    (859) 544-7626
                   LONDON KY            (859) 625-7600    (859) 544-7626
                   RICHMOND KY          (859) 625-7600    (859) 544-7626
                   RICHMOND KY          (859) 625-7600    (859) 544-7626
                   STANFORD KY          (859) 625-7600    (859) 544-7626
                   DANVILLE KY          (859) 625-7600    (859) 544-7626
                   RICHMOND KY          (859) 625-7600    (859) 544-7626
                   SOMERSET KY          (859) 625-7600    (859) 544-7626
                   SOMERSET KY          (859) 625-7600    (859) 544-7626
                   BEREA KY             (859) 625-7600    (859) 544-7626
                   LANCASTER KY         (859) 625-7600    (859) 544-7626
                   RICHMOND KY          (859) 625-7600    (859) 544-7626
                   RICHMOND KY          (859) 625-7600    (859) 544-7626
                   DANVILLE KY          (859) 625-7600    (859) 544-7626
                   RICHMOND KY          (859) 625-7600    (859) 544-7626
              ------------------------------------------------------------
NEW NPA/NXX        RADCLIFF KY          (859) 625-7600    (270) 723-7626
                   RADCLIFF KY          (859) 625-7600    (270) 723-7626
                   RADCLIFF KY          (859) 625-7600    (270) 723-7626
                   ELIZABETHTOWN KY     (859) 625-7600    (270) 723-7626
                   ELIZABETHTOWN KY     (859) 625-7600    (270) 723-7626
                   ELIZABETHTOWN KY     (859) 625-7600    (270) 723-7626
                   GREENSBURG KY        (859) 625-7600    (270) 723-7626
                   ELIZABETHTOWN KY     (859) 625-7600    (270) 723-7626
                   BARDSTOWN KY         (859) 625-7600    (270) 723-7626
                   LAWRENCEBURG KY      (859) 625-7600    (270) 723-7626
                   LAWRENCEBURG KY      (859) 625-7600    (270) 723-7626
                   TAYLORSVILLE KY      (859) 625-7600    (270) 723-7626
                   SPRINGFIELD KY       (859) 625-7600    (270) 723-7626
                   HARRODSBURG KY       (859) 625-7600    (270) 723-7626
                   SPRINGFIELD KY       (859) 625-7600    (270) 723-7626
                   HARRODSBURG KY       (859) 625-7600    (270) 723-7626
              ------------------------------------------------------------
                   VANCEBURG KY         (859) 625-7600    (859) 544-7626
                   MT. OLIVET KY        (859) 625-7600    (859) 544-7626
                   MOREHEAD KY          (859) 625-7600    (859) 544-7626
                   FLEMINGSBURG KY      (859) 625-7600    (859) 544-7626
                   OWINGSVILLE KY       (859) 625-7600    (859) 544-7626
                   BROOKSVILLE KY       (859) 625-7600    (859) 544-7626
                   WASHINGTON KY        (859) 625-7600    (859) 544-7626
                   MT. STERLING KY      (859) 625-7600    (859) 544-7626
                   CARLISLE KY          (859) 625-7600    (859) 544-7626
                   MAYSVILLE KY         (859) 625-7600    (859) 544-7626
                   MT. STERLING KY      (859) 625-7600    (859) 544-7626
                   CARLISLE KY          (859) 625-7600    (859) 544-7626
              ------------------------------------------------------------
                   COLUMBIA KY          (859) 625-7600    (502) 576-7626
                   BURKESVILLE KY       (859) 625-7600    (270) 723-7626
                   TOMPKINSVILLE KY     (859) 625-7600    (270) 723-7626
                   MUNFORDVILLE KY      (859) 625-7600    (270) 723-7626
                   MUNFORDVILLE KY      (859) 625-7600    (270) 723-7626
NEW NPA/NXX RANGE  GLASGOW KY           (859) 625-7600    (502) 576-7626
                   GLASGOW KY           (859) 625-7600    (502) 576-7626
                   ALBANY KY            (859) 625-7600    (270) 723-7626
                   MONTICELLO KY        (859) 625-7600    (502) 576-7626
                   WHITLEY CITY KY      (859) 625-7600    (270) 723-7626
--------------------------------------------------------------------------
   MICHIGAN        MARQUETTE MI         (800) 491-9999    (906) 360-7626
                   MARQUETTE MI         (800) 491-9999    (906) 360-7626
                   MARQUETTE MI         (800) 491-9999    (906) 360-7626
                   IRONWOOD MI          (800) 491-9999    (906) 360-7626
                   BERGLAND MI          (800) 491-9999    (906) 360-7626
                   WATERSMEET MI        (800) 491-9999    (906) 360-7626
                   IRON RIVER MI        (800) 491-9999    (906) 360-7626
                   POWERS MI            (800) 491-9999    (906) 360-7626
                   CALUMET MI           (800) 491-9999    (906) 360-7626
                   HOUGHTON MI          (800) 491-9999    (906) 360-7626
                   CHAMPION MI          (800) 491-9999    (906) 360-7626
                   BIG BAY MI           (800) 491-9999    (906) 360-7626
                   STEPHENSON MI        (800) 491-9999    (906) 360-7626
                   ONTONAGON MI         (800) 491-9999    (906) 360-7626
                   BLUE CROSSING MI     (800) 491-9999    (906) 360-7626
                   MARINESCO MI         (800) 491-9999    (906) 360-7626
                   FELCH MI             (800) 491-9999    (906) 360-7626
                   FENCE RIVER MI       (800) 491-9999    (906) 360-7626
                   BARAGA MI            (800) 491-9999    (906) 360-7626
                   FELCH MI             (800) 491-9999    (906) 360-7626
                   FELCH MI             (800) 491-9999    (906) 360-7626
                   MARQUETTE MI         (800) 491-9999    (906) 360-7626
</TABLE>

<PAGE>

<TABLE>
<CAPTION>
<S><C>

                                                                                                                         Page 3 of 3

                              AMERICAN CELLULAR WIRELESS, LLP TECHNICAL DATA SHEET FOR JUNE 9, 2000
  STATE         SERVICE AREA     RSA   SID/BID   NPA/NXX     RANGE         MSCID        CLLI CODE      EXM         SPC
------------------------------------------------------------------------------------------------------------------------
  Wisconsin     EAU CLAIRE WI      MSA    30927    715-558   5000-6999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                EAU CLAIRE WI      MSA    30927    715-558   8000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                EAU CLAIRE WI      MSA    30927    715-559   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                EAU CLAIRE WI      MSA    30927    715-586   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                EAU CLAIRE WI      MSA    30927    715-828   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                EAU CLAIRE WI      MSA    30927    715-829   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                ------------------------------------------------------------------------------------------------------------
                RICE LAKE WI      WI-1    30945    715-205   0000-9999   0333-04-000     WAUSWIT1NTA   WAUT1NT   227-187-224
                RICE LAKE WI      WI-1    30945    715-295   0000-9999   0333-04-000     WAUSWIT1NTA   WAUT1NT   227-187-224
                ------------------------------------------------------------------------------------------------------------
                RHINELANDER WI    WI-3    30935    715-360   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-367   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-550   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-610   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-612   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-614   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-616   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RHINELANDER WI    WI-3    30935    715-617   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                ------------------------------------------------------------------------------------------------------------
                MARINETTE WI      WI-4N   26337    715-587   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                ------------------------------------------------------------------------------------------------------------
                CLINTONVILLE      WI-4S   26339    715-580   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                SHAWANO WI        WI-4S   26339    715-584   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                OCONTO WI         WI-4S   26339    920-618   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                OCONTO WI         WI-4S   26339    920-664   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                ------------------------------------------------------------------------------------------------------------
                DURAND WI          WI-5   26363    715-279   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RIVER FALLS WI     WI-5   26363    715-426   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                MENOMONIE WI       WI-5   26363    715-505   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                MENOMONIE WI       WI-5   26363    715-556   0000-4999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                MENOMONIE WI       WI-5   26363    715-556   7000-7999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                RIVER FALLS WI     WI-5   26363    715-821   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                ------------------------------------------------------------------------------------------------------------
                WAUSAU WI         WI-6N   30929    715-551   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                WAUSAU WI         WI-6N   30929    715-571   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                WAUSAU WI         WI-6N   30929    715-574   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                WAUSAU WI         WI-6N   30929    715-813   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
                WAUSAU WI         WI-6N   30929    715-615   0000-9999   00333-004-000   WAUSWIT1NTA   WAUT1NT   227-187-224
----------------------------------------------------------------------------------------------------------------------------
West Virginia   ROANOKE WV         WV-2   26137    304-299   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
                ROANOKE WV         WV-2   26137    304-871   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
                ------------------------------------------------------------------------------------------------------------
                MORGANTOWN WV      WV-3    1793    304-203   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
                MORGANTOWN WV      WV-3    1793    304-218   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
                MORGANTOWN WV      WV-3    1793    304-276   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
                MORGANTOWN WV      WV-3    1793    304-282   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
                MORGANTOWN WV      WV-3    1793    304-641   0000-9999   01793-001-000   MORGWVT1NTI   MORT1NT   227-187-223
----------------------------------------------------------------------------------------------------------------------------

<CAPTION>

  STATE           CUST. SVC.       ROAMER PORT
-----------------------------------------------
  Wisconsin     (715) 831-1900   (715) 828-7626
                (715) 831-1900   (715) 828-7626
                (715) 831-1900   (715) 828-7626
                (715) 831-1900   (715) 828-7626
                (715) 831-1900   (715) 828-7626
                (715) 831-1900   (715) 828-7626
                -------------------------------
                (715) 831-1900   (715) 296-7626
                (715) 831-1900   (715) 296-7626
                -------------------------------
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                (715) 355-7776   (715) 367-7626
                -------------------------------
                (800) 491-9999   (906) 360-7626
                -------------------------------
                (715) 355-7776   (715) 571-7626
                (715) 355-7776   (715) 584-7626
                (715) 355-7776   (920) 664-7626
                (715) 355-7776   (920) 664-7626
                -------------------------------
                (715) 831-1900   (715) 571-7626
                (715) 831-1900   (715) 571-7626
                (715) 831-1900   (715) 571-7626
                (715) 831-1900   (715) 571-7626
                (715) 831-1900   (715) 571-7626
                (715) 831-1900   (715) 571-7626
                -------------------------------
                (715) 335-7776   (715) 571-7626
                (715) 335-7776   (715) 571-7626
                (715) 335-7776   (715) 571-7626
                (715) 335-7776   (715) 571-7626
                (715) 335-7776   (715) 571-7626
-----------------------------------------------
West Virginia   (304) 599-5444   (304) 282-7626
                (304) 599-5444   (304) 282-7626
                -------------------------------
                (304) 599-5444   (304) 282-7626
                (304) 599-5444   (304) 282-7626
                (304) 599-5444   (304) 282-7626
                (304) 599-5444   (304) 282-7626
                (304) 599-5444   (304) 282-7626
-----------------------------------------------

                * SHARED LINE RANGES   American Cellular is responsible for the full 10k except where noted with
                                       a "*". These line ranges are shared. Please see information on shares line
                                       ranges below. Contact information follows.

                ----------------------------------------------------------------------                 ---------------------
                   423/625         0000-1999       American Cellular          26435                    RATES**
                   423/625         2000-6999       U.S. Cellular              30918
                   423/625         7000-9999       American Cellular          26435                    $3.00/day
                ----------------------------------------------------------------------                 $0.99/min
                   423/636         0000-2999       American Cellular          26435                    ---------------------
                   423/636         3000-6999       360 Communications         1896
                   423/636         7000-9999       American Cellular          26435
                ----------------------------------------------------------------------                 -----------------------------
                   270/272         0000-1999       American Cellular          30463                    DIALING INSTRUCTIONS:
                   270/272         2000-9999       Bluegrass Cellular         30528                    Local:   10 Digits
                ----------------------------------------------------------------------                 Toll:  1 + 10 Digits
                   270/352         0000-6999       American Cellular          30463                    Home:  1 + 10 Digits
                   270/352         7000-9999       Bluegrass Cellular         30528                    ACC DOES NOT allow direct
                ----------------------------------------------------------------------                 international dialing
                   270/528         0000-0999       American Cellular          30787                    -----------------------------
                   270/528         1000-1999       Bluegrass Cellular         30530
                   270/528         2000-3999       American Cellular          30787                    -----------------------------
                   270/528         4000-9999       Bluegrass Cellular         30530                    We use Systems Link FraudTec
                ----------------------------------------------------------------------                 for fraud visibility.
                   270/537         0000-0999       American Cellular          30787                    ASSUME NEGATIVE:
                   270/537         1000-9999       Bluegrass Cellular         30530
                ----------------------------------------------------------------------
                   845/258         0000-8999       Bell Atlantic Nynex        486                      We assume negative if our
                   845/258         9000-9999       American Cellular          26335                    switches are unable to
                ----------------------------------------------------------------------                 validate.
                   845/988         0000-2999       American Cellular          26335                    CALL VALIDATION:
                   845/988         3000-3999       American Cellular          26343                    NACN & XLI
                   845/988         4000-7999       Bell Atlantic Nynex        486                      -----------------------------
                   845/988         8000-8999       American Cellular          26343
                   845/988         9000-9999       Bell Atlantic Nynex        486
                ----------------------------------------------------------------------

</TABLE>

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00024-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00024-of-00352.parquet"}]]