Information for Area Code: 520-xxx-xxxx - AZ - ARIZONA

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Information about Area Code 520

Area code 775 Area code 702 Area code 435 Area code 970 Area code 505 Area code 760 Area code 623 Area code 623 Area code 623 Area code 480 Area code 623 Area code 623 Area code 623 Area code 602 Area code 602 Area code 520 Area code 480 Area code 520 Area code 928 Area code 928

Map of Arizona area codes in blue (and border states) with 520 in redAbout this image

North American area code 520 is a state of Arizona telephone area code which was created in a split from area code 602 on March 19, 1995, for the rest of the state outside of the Greater Phoenix metropolitan area. 520 itself was split on June 23, 2001, creating area code 928, due mainly to population gains in Tucson, Yuma and Flagstaff. It was the third area code in the United States to have a number other than 0 or 1 as the second digit. (Area codes 334 and 360 went into effect on January 15, 1995.)

The map to the right is clickable; click on any U.S. area code to go to the page for that code.

Pima, Santa Cruz, Cochise, and most of Pinal County kept Area Code 520, while Yuma, La Paz, western Maricopa County, and everything north, including Flagstaff, switched to the new area code 928.

Counties served by this area code: Cochise, Maricopa, Pima, Pinal, and Santa Cruz.

Communities served by this area code: Tucson, Sierra Vista, Aguila, Ajo, Amado, Arivaca, Arizona City, Bapchule, Benson, Bisbee, Bowie, Casa Grande, Catalina, Cochise, Coolidge, Cortaro, Douglas, Dragoon, Elfrida, Elgin, Eloy, Florence, Fort Huachuca, Green Valley, Hereford, Huachuca City, Kearny, Lukeville, Mammoth, Marana, Maricopa, Mc Neal, Mount Lemmon, Naco, Nogales, Oracle, Patagonia, Pearce, Picacho, Pirtleville, Pomerene, Red Rock, Rillito, Rio Rico, Sacaton, Sahuarita, Saint David, San Manuel, San Simon, Sasabe, Sells, Sonoita, Stanfield, Superior, Tombstone, Topawa, Tubac, Tumacacori, Vail, Valley Farms, and Willcox.

State of Arizona area codes: 480, 520, 602, 623, 928
North: 480, 602, 928
West: 623, 928 area code 520 East: 505
South: Mexico, country code 52
State of New Mexico Area Codes: 505, (proposed) 575


See also


Exchanges for Area Code 520-xxx-xxxx:

Exchange 520-200
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-201
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-202
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-203
Tucson - XO ARIZONA, INC.

Exchange 520-204
Tucson - MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- AZ

Exchange 520-205
Tucson - QWEST CORPORATION

Exchange 520-206
Tucson - QWEST CORPORATION

Exchange 520-207
Tucson - COX ARIZONA TELECOM, INC.

Exchange 520-208
Phoenix - GLOBAL CROSSING LOCAL SERVCIES, INC.-AZ

Exchange 520-209
Tucson - QWEST CORPORATION

Exchange 520-211
-

Exchange 520-212
CASCABEL - MIDVALE TELEPHONE EXCHANGE, INC.

Exchange 520-215
SACATON - GILA RIVER TELECOMM, INC.

Exchange 520-216
Tucson - WESTERN WIRELESS CORPORATION-AZ

Exchange 520-218
Tucson - QWEST CORPORATION

Exchange 520-219
Tucson - QWEST CORPORATION

Exchange 520-220
Tucson - T-MOBILE USA, INC.

Exchange 520-221
Tucson - WESTERN WIRELESS CORPORATION-AZ

Exchange 520-223
Tucson - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-224
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-225
Tucson - QWEST CORPORATION

Exchange 520-226
Tucson - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-227
Tucson - SPRINT SPECTRUM L.P.- AZ

Exchange 520-228
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-229
Tucson - QWEST CORPORATION

Exchange 520-230
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-232
Tucson - QWEST CORPORATION

Exchange 520-233
- AT&T LOCAL

Exchange 520-234
Tucson - AT&T LOCAL

Exchange 520-235
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-236
Tucson - SPRINT SPECTRUM L.P.- AZ

Exchange 520-237
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-238
Tempe - T-MOBILE USA, INC.

Exchange 520-239
Tucson - AT&T LOCAL

Exchange 520-240
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-241
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-243
Tucson - QWEST CORPORATION

Exchange 520-244
Tucson - NETWORK SERVICES LLC

Exchange 520-245
- T-MOBILE USA, INC.

Exchange 520-247
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-248
Tucson - T-MOBILE USA, INC.

Exchange 520-249
Tucson - SPRINT SPECTRUM L.P.- AZ

Exchange 520-250
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-251
Phoenix - NEXTEL COMMUNICATIONS

Exchange 520-252
Phoenix - SPRINT SPECTRUM L.P.

Exchange 520-253
Tucson - ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-254
Tucson - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-255
Tucson - ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-256
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-258
Tucson - QWEST CORPORATION

Exchange 520-259
TUCSON - NORTH COUNTY COMMUNICATIONS CORP.

Exchange 520-260
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-264
Tucson - AT&T LOCAL

Exchange 520-265
Tucson - NEXTEL COMMUNICATIONS

Exchange 520-266
Tucson - NEXTEL COMMUNICATIONS

Exchange 520-267
TUCSON - NORTH COUNTY COMMUNICATIONS CORP.

Exchange 520-269
Tucson -

Exchange 520-270
- T-MOBILE USA, INC.

Exchange 520-271
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-272
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-275
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-280
Phoenix - SPRINT SPECTRUM L.P.

Exchange 520-281
NOGALES - QWEST CORPORATION

Exchange 520-285
NOGALES - QWEST CORPORATION

Exchange 520-287
NOGALES - QWEST CORPORATION

Exchange 520-289
Tucson -

Exchange 520-290
Tucson - QWEST CORPORATION

Exchange 520-291
Tucson - QWEST CORPORATION

Exchange 520-292
Tucson - QWEST CORPORATION

Exchange 520-293
Tucson - QWEST CORPORATION

Exchange 520-294
Tucson - QWEST CORPORATION

Exchange 520-295
Tucson - QWEST CORPORATION

Exchange 520-296
Tucson - QWEST CORPORATION

Exchange 520-297
Tucson - QWEST CORPORATION

Exchange 520-298
Tucson - QWEST CORPORATION

Exchange 520-299
Tucson - QWEST CORPORATION

Exchange 520-300
Tucson -

Exchange 520-301
Tucson -

Exchange 520-302
Tucson -

Exchange 520-304
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-307
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-309
Tucson -

Exchange 520-310
Phoenix - SPRINT SPECTRUM L.P.- AZ

Exchange 520-311
-

Exchange 520-312
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-313
Tucson - T-MOBILE USA, INC.

Exchange 520-315
SACATON - GILA RIVER TELECOMM, INC.

Exchange 520-316
Casa Grande - QWEST CORPORATION

Exchange 520-318
Tucson - QWEST CORPORATION

Exchange 520-319
Tucson - QWEST CORPORATION

Exchange 520-320
Tucson - QWEST CORPORATION

Exchange 520-321
Tucson - QWEST CORPORATION

Exchange 520-322
Tucson - QWEST CORPORATION

Exchange 520-323
Tucson - QWEST CORPORATION

Exchange 520-324
Tucson - QWEST CORPORATION

Exchange 520-325
Tucson - QWEST CORPORATION

Exchange 520-326
Tucson - QWEST CORPORATION

Exchange 520-327
Tucson - QWEST CORPORATION

Exchange 520-331
- T-MOBILE USA, INC.

Exchange 520-342
-

Exchange 520-343
Tucson -

Exchange 520-344
-

Exchange 520-349
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-351
TUCSON -

Exchange 520-352
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-356
HAYDEN - QWEST CORPORATION

Exchange 520-357
DUDDLEYVILLE - QWEST CORPORATION

Exchange 520-358
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-360
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-361
Sells -

Exchange 520-362
SANTA ROSA -

Exchange 520-363
Kearny - QWEST CORPORATION

Exchange 520-364
Douglas - QWEST CORPORATION

Exchange 520-366
PALOMINAS - QWEST CORPORATION

Exchange 520-370
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-371
Phoenix - SPRINT SPECTRUM L.P.

Exchange 520-374
Casa Grande - QWEST CORPORATION

Exchange 520-375
NOGALES - QWEST CORPORATION

Exchange 520-377
NOGALES - QWEST CORPORATION

Exchange 520-378
Sierra Vista - QWEST CORPORATION

Exchange 520-381
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-382
TUCSON - XSPEDIUS MANANGEMENT CO. SWITCHED SERVICES, LLC AZ

Exchange 520-383
SELLS -

Exchange 520-384
Willcox - QWEST CORPORATION

Exchange 520-385
SAN MANUEL - QWEST CORPORATION

Exchange 520-387
Ajo - TABLE TOP TELEPHONE CO., INC.

Exchange 520-388
Tucson - QWEST CORPORATION

Exchange 520-390
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-391
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-393
Green Valley - QWEST CORPORATION

Exchange 520-394
PATAGONIA - QWEST CORPORATION

Exchange 520-395
-

Exchange 520-396
Tucson -

Exchange 520-397
NOGALES - QWEST CORPORATION

Exchange 520-398
TUBAC - QWEST CORPORATION

Exchange 520-399
Green Valley - QWEST CORPORATION

Exchange 520-400
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-401
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-403
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-404
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-405
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-406
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-407
Tucson - QWEST CORPORATION

Exchange 520-408
Tucson - QWEST CORPORATION

Exchange 520-409
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-410
Tucson - QWEST CORPORATION

Exchange 520-411
-

Exchange 520-413
Phoenix - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-414
Phoenix - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-417
SIERRA VISTA - QWEST CORPORATION

Exchange 520-418
SACATON - GILA RIVER TELECOMM, INC.

Exchange 520-419
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-420
Phoenix - SPRINT SPECTRUM L.P.- AZ

Exchange 520-421
Casa Grande - QWEST CORPORATION

Exchange 520-423
Casa Grande - QWEST CORPORATION

Exchange 520-424
STANFIELD - QWEST CORPORATION

Exchange 520-425
Tucson -

Exchange 520-426
Casa Grande - QWEST CORPORATION

Exchange 520-429
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-430
LAVEEN - GILA RIVER TELECOMM, INC.

Exchange 520-431
Phoenix - AT&T WIRELESS SERVICES, INC.

Exchange 520-432
Bisbee - QWEST CORPORATION

Exchange 520-434
Tucson - QWEST CORPORATION

Exchange 520-435
-

Exchange 520-437
Tucson -

Exchange 520-439
SIERRA VISTA - QWEST CORPORATION

Exchange 520-440
- T-MOBILE USA, INC.

Exchange 520-443
Tucson -

Exchange 520-444
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-446
Tucson - QWEST CORPORATION

Exchange 520-449
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-450
Tempe - T-MOBILE USA, INC.

Exchange 520-451
Phoenix - SPRINT SPECTRUM L.P.- AZ

Exchange 520-452
SIERRA VISTA - QWEST CORPORATION

Exchange 520-455
PATAGONIA - QWEST CORPORATION

Exchange 520-456
SIERRA VISTA - QWEST CORPORATION

Exchange 520-457
TOMBSTONE - QWEST CORPORATION

Exchange 520-458
SIERRA VISTA - QWEST CORPORATION

Exchange 520-459
SIERRA VISTA - QWEST CORPORATION

Exchange 520-461
Tucson - ELECTRIC LIGHTWAVE, INC. - ARIZONA

Exchange 520-463
WHITLOW - QWEST CORPORATION

Exchange 520-464
ELOY - QWEST CORPORATION

Exchange 520-465
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-466
ARIZONA CITY - QWEST CORPORATION

Exchange 520-469
Tucson - QWEST CORPORATION

Exchange 520-470
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-471
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-481
- T-MOBILE USA, INC.

Exchange 520-483
Gilbert - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-487
MAMMOTH - QWEST CORPORATION

Exchange 520-488
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-489
Tucson - QWEST CORPORATION

Exchange 520-490
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-491
Tempe - T-MOBILE USA, INC.

Exchange 520-494
ARIZONA CITY - QWEST CORPORATION

Exchange 520-495
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-498
Tucson - QWEST CORPORATION

Exchange 520-507
Tucson - VALLEY TELECOMMUNICATIONS COMPANY

Exchange 520-508
Tucson - VALLEY TELECOMMUNICATIONS COMPANY

Exchange 520-509
Phoenix - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-510
Phoenix - ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-511
-

Exchange 520-512
Tucson - QWEST CORPORATION

Exchange 520-513
Tucson - QWEST CORPORATION

Exchange 520-514
Tucson - QWEST CORPORATION

Exchange 520-515
SIERRA VISTA - QWEST CORPORATION

Exchange 520-516
Tucson - QWEST CORPORATION

Exchange 520-518
Phoenix - ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-519
Tucson - QWEST CORPORATION

Exchange 520-529
Tucson - QWEST CORPORATION

Exchange 520-531
Tucson - QWEST CORPORATION

Exchange 520-533
SIERRA VISTA - QWEST CORPORATION

Exchange 520-538
SIERRA VISTA - QWEST CORPORATION

Exchange 520-540
Tucson - NETWORK SERVICES LLC (TSR)

Exchange 520-544
Tucson - QWEST CORPORATION

Exchange 520-545
TUCSON - XSPEDIUS MANANGEMENT CO. SWITCHED SERVICES, LLC AZ

Exchange 520-546
Tucson - QWEST CORPORATION

Exchange 520-547
TUCSON - XSPEDIUS MANANGEMENT CO. SWITCHED SERVICES, LLC AZ

Exchange 520-548
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-549
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-550
KOMATKE - GILA RIVER TELECOMM, INC.

Exchange 520-551
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-553
Phoenix - NETWORK SERVICES LLC

Exchange 520-555
Phoenix - QWEST CORPORATION

Exchange 520-557
Tucson - NETWORK SERVICES LLC (TSR)

Exchange 520-558
PORTAL - VALLEY TELEPHONE COOPERATIVE, INC.

Exchange 520-559
Tucson - ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-560
Phoenix - ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-561
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-562
SACATON - GILA RIVER TELECOMM, INC.

Exchange 520-566
Tucson - QWEST CORPORATION

Exchange 520-568
MARICOPA - QWEST CORPORATION

Exchange 520-570
Tucson - QWEST CORPORATION

Exchange 520-571
Tucson - QWEST CORPORATION

Exchange 520-572
Tucson - QWEST CORPORATION

Exchange 520-573
Tucson - QWEST CORPORATION

Exchange 520-574
Tucson - QWEST CORPORATION

Exchange 520-575
Tucson - QWEST CORPORATION

Exchange 520-576
TUCSON - QWEST CORPORATION

Exchange 520-577
Tucson - QWEST CORPORATION

Exchange 520-578
TUCSON - QWEST CORPORATION

Exchange 520-579
Tucson - QWEST CORPORATION

Exchange 520-582
Phoenix - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-584
Tucson - QWEST CORPORATION

Exchange 520-586
BENSON - QWEST CORPORATION

Exchange 520-590
Tucson - NETWORK SERVICES LLC (TSR)

Exchange 520-591
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-594
Tucson - QWEST CORPORATION

Exchange 520-601
Show Low - WAYNE MARKIS DBA HANDY PAGE

Exchange 520-603
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-604
NOGALES - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-609
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-610
Gilbert - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-611
-

Exchange 520-615
Tucson - QWEST CORPORATION

Exchange 520-616
Marana - QWEST CORPORATION

Exchange 520-617
Tucson - QWEST CORPORATION

Exchange 520-618
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-619
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-620
Tucson - QWEST CORPORATION

Exchange 520-621
Tucson - QWEST CORPORATION

Exchange 520-622
Tucson - QWEST CORPORATION

Exchange 520-623
Tucson - QWEST CORPORATION

Exchange 520-624
Tucson - QWEST CORPORATION

Exchange 520-625
Green Valley - QWEST CORPORATION

Exchange 520-626
Tucson - QWEST CORPORATION

Exchange 520-628
Tucson - QWEST CORPORATION

Exchange 520-629
Tucson - QWEST CORPORATION

Exchange 520-630
Tucson - NETWORK SERVICES LLC (TSR)

Exchange 520-631
Tucson - NEXTEL COMMUNICATIONS

Exchange 520-642
ELFRIDA - COPPER VALLEY TELEPHONE, INC.

Exchange 520-647
VAIL - QWEST CORPORATION

Exchange 520-648
Green Valley - QWEST CORPORATION

Exchange 520-661
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-662
Tucson - QWEST CORPORATION

Exchange 520-663
Tucson - QWEST CORPORATION

Exchange 520-664
Tucson - QWEST CORPORATION

Exchange 520-665
MARANA - QWEST CORPORATION

Exchange 520-668
Tucson - KMC TELECOM V, INC. - AZ

Exchange 520-670
Tucson - QWEST CORPORATION

Exchange 520-676
-

Exchange 520-678
Tucson - VALLEY TELECOMMUNICATIONS COMPANY

Exchange 520-682
Marana - QWEST CORPORATION

Exchange 520-686
Tucson - VALLEY TELECOMMUNICATIONS COMPANY

Exchange 520-689
Superior - QWEST CORPORATION

Exchange 520-690
Tucson - QWEST CORPORATION

Exchange 520-694
Tucson - QWEST CORPORATION

Exchange 520-695
Tucson - QWEST CORPORATION

Exchange 520-696
Tucson - QWEST CORPORATION

Exchange 520-700
-

Exchange 520-701
Tempe -

Exchange 520-702
Tempe -

Exchange 520-703
Tucson - NETWORK SERVICES LLC (TSR)

Exchange 520-705
Gilbert - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-706
Tempe -

Exchange 520-709
Gilbert - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-711
-

Exchange 520-712
Tucson - QWEST CORPORATION

Exchange 520-720
SAINT DAVID - QWEST CORPORATION

Exchange 520-721
Tucson - QWEST CORPORATION

Exchange 520-722
Tucson - QWEST CORPORATION

Exchange 520-723
Coolidge - QWEST CORPORATION

Exchange 520-726
-

Exchange 520-727
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-730
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-731
Tucson - QWEST CORPORATION

Exchange 520-732
Tucson - VALLEY TELECOMMUNICATIONS COMPANY

Exchange 520-733
Tucson - QWEST CORPORATION

Exchange 520-740
Tucson - QWEST CORPORATION

Exchange 520-741
Tucson - QWEST CORPORATION

Exchange 520-742
Tucson - QWEST CORPORATION

Exchange 520-743
TUCSON - QWEST CORPORATION

Exchange 520-744
Tucson - QWEST CORPORATION

Exchange 520-745
Tucson - QWEST CORPORATION

Exchange 520-746
Tucson - QWEST CORPORATION

Exchange 520-747
Tucson - QWEST CORPORATION

Exchange 520-748
Tucson - QWEST CORPORATION

Exchange 520-749
Tucson - QWEST CORPORATION

Exchange 520-750
Tucson - QWEST CORPORATION

Exchange 520-751
Tucson - QWEST CORPORATION

Exchange 520-760
Tucson - QWEST CORPORATION

Exchange 520-761
NOGALES - QWEST CORPORATION

Exchange 520-762
VAIL - QWEST CORPORATION

Exchange 520-766
Willcox - VALLEY CONNECTIONS, L.L.C. - AZ

Exchange 520-767
- RURAL NETWORK SERVICES, INC. - ID

Exchange 520-770
Tucson - QWEST CORPORATION

Exchange 520-777
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-780
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-784
Tucson - QWEST CORPORATION

Exchange 520-786
Tucson - NETWORK SERVICES LLC

Exchange 520-790
Tucson - QWEST CORPORATION

Exchange 520-791
Tucson - QWEST CORPORATION

Exchange 520-792
Tucson - QWEST CORPORATION

Exchange 520-793
Tucson - QWEST CORPORATION

Exchange 520-794
Tucson - QWEST CORPORATION

Exchange 520-795
Tucson - QWEST CORPORATION

Exchange 520-796
Chandler - GILA RIVER TELECOMM, INC.

Exchange 520-797
Tucson - QWEST CORPORATION

Exchange 520-798
Tucson - QWEST CORPORATION

Exchange 520-799
Tucson - QWEST CORPORATION

Exchange 520-803
Sierra Vista - QWEST CORPORATION

Exchange 520-805
Douglas - QWEST CORPORATION

Exchange 520-806
Tucson - QWEST CORPORATION

Exchange 520-807
Tucson - QWEST CORPORATION

Exchange 520-808
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-811
-

Exchange 520-816
Tucson - NETWORK SERVICES LLC (TSR)

Exchange 520-818
Tucson - QWEST CORPORATION

Exchange 520-820
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-822
TUCSON - QWEST CORPORATION

Exchange 520-823
SASABE - ARIZONA TELEPHONE CO.

Exchange 520-824
SUNIZONA - VALLEY TELEPHONE COOPERATIVE, INC.

Exchange 520-825
Tucson - QWEST CORPORATION

Exchange 520-826
PEARCE - VALLEY TELEPHONE COOPERATIVE, INC.

Exchange 520-827
Gilbert - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-829
Tucson - LEVEL 3 COMMUNICATIONS, LLC - AZ

Exchange 520-831
Tempe - T-MOBILE USA, INC.

Exchange 520-834
Tucson - SBC TELECOM, INC. - AZ

Exchange 520-836
Casa Grande - QWEST CORPORATION

Exchange 520-837
Tucson - TELEPORT COMMUNICATIONS GROUP - PHOENIX

Exchange 520-838
Tucson - QWEST CORPORATION

Exchange 520-839
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-840
Gilbert - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-841
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-842
Tucson - PAC - WEST TELECOMM, INC. - AZ

Exchange 520-843
Tucson - PAC - WEST TELECOMM, INC. - AZ

Exchange 520-844
Tucson - PAC - WEST TELECOMM, INC. - AZ

Exchange 520-845
SAN SIMON - VALLEY TELEPHONE COOPERATIVE, INC.

Exchange 520-847
BOWIE - VALLEY TELEPHONE COOPERATIVE, INC.

Exchange 520-850
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-860
NOGALES - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-861
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-866
FLORENCE - QWEST CORPORATION

Exchange 520-867
Tucson - LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.

Exchange 520-868
FLORENCE - QWEST CORPORATION

Exchange 520-869
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-870
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-872
Tucson - QWEST CORPORATION

Exchange 520-873
Tucson - QWEST CORPORATION

Exchange 520-874
Tucson - QWEST CORPORATION

Exchange 520-876
Casa Grande - QWEST CORPORATION

Exchange 520-877
Tucson - QWEST CORPORATION

Exchange 520-878
Tucson - QWEST CORPORATION

Exchange 520-879
Tucson - QWEST CORPORATION

Exchange 520-880
Tucson - QWEST CORPORATION

Exchange 520-881
Tucson - QWEST CORPORATION

Exchange 520-882
Tucson - QWEST CORPORATION

Exchange 520-883
TUCSON - QWEST CORPORATION

Exchange 520-884
Tucson - QWEST CORPORATION

Exchange 520-885
Tucson - QWEST CORPORATION

Exchange 520-886
Tucson - QWEST CORPORATION

Exchange 520-887
Tucson - QWEST CORPORATION

Exchange 520-888
Tucson - QWEST CORPORATION

Exchange 520-889
Tucson - QWEST CORPORATION

Exchange 520-891
- T-MOBILE USA, INC.

Exchange 520-895
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-896
ORACLE - QWEST CORPORATION

Exchange 520-898
ELOY - MIDVALE TELEPHONE EXCHANGE, INC.

Exchange 520-901
Tucson - TIME WARNER TELECOM OF ARIZONA, LLC-AZ

Exchange 520-903
Tucson - QWEST CORPORATION

Exchange 520-904
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-906
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-907
Tucson - AT&T WIRELESS SERVICES, INC.

Exchange 520-908
TUCSON - QWEST CORPORATION

Exchange 520-909
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-911
-

Exchange 520-917
- BROOKS FIBER COMMUNICATIONS - TUSCON, INC.

Exchange 520-918
- BROOKS FIBER COMMUNICATIONS - TUSCON, INC.

Exchange 520-921
Tempe - T-MOBILE USA, INC.

Exchange 520-924
- MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-930
Tucson - ARCH WIRELESS HOLDINGS, INC.

Exchange 520-931
Tucson - ARCH WIRELESS HOLDINGS, INC.

Exchange 520-932
Tucson - ARCH WIRELESS HOLDINGS, INC.

Exchange 520-934
Tucson - ARCH WIRELESS HOLDINGS, INC.

Exchange 520-940
Tucson - NEXTEL COMMUNICATIONS

Exchange 520-950
-

Exchange 520-954
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-955
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ

Exchange 520-958
-

Exchange 520-959
-

Exchange 520-971
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-975
Tucson - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-976
-

Exchange 520-977
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-979
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-980
Tucson - NEXTEL COMMUNICATIONS

Exchange 520-981
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-982
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-987
NOGALES - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-988
NOGALES - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ

Exchange 520-989
Scottsdale - MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC

Exchange 520-990
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-991
Tucson - SPRINT SPECTRUM L.P.

Exchange 520-993
- ALLTEL COMMUNICATIONS OF THE SOUTHWEST LP AZ