Area Codes > 520 > Central Office Codes
Exchange | Rate Center | State | Operating Company |
---|---|---|---|
520-331 | TUCSON | AZ | T-MOBILE USA, INC. |
520-337 | WILLCOX | AZ | LEVEL 3 COMMUNICATIONS, LLC - AZ |
520-342 | TUCSON | AZ | 360NETWORKS (USA) INC. - AZ |
520-343 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-344 | TUCSON | AZ | ESCHELON TELECOM OF ARIZONA, INC. - AZ |
520-349 | TUCSON | AZ | ALLTEL COMMUNICATIONS OF THE SOUTHWEST, LP - AZ |
520-350 | CASAGRANDE | AZ | GILA LOCAL EXCHANGE CARRIER, INC. - AZ |
520-351 | TUCSON | AZ | XSPEDIUS MANANGEMENT CO. SWITCHED SERVICES, LLC AZ |
520-352 | TUCSON | AZ | MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC |
520-356 | HAYDEN | AZ | QWEST CORPORATION |
520-357 | HAYDEN | AZ | QWEST CORPORATION |
520-358 | TUCSON | AZ | LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC. |
520-360 | TUCSON | AZ | BLUE LICENSES HOLDING, LLC |
520-361 | SANTA ROSA | AZ | TOHONO O'ODHAM UTILITY AUTHORITY |
520-362 | W SANSIMON | AZ | TOHONO O'ODHAM UTILITY AUTHORITY |
520-363 | HAYDEN | AZ | QWEST CORPORATION |
520-364 | DOUGLAS | AZ | QWEST CORPORATION |
520-366 | BISBEE | AZ | QWEST CORPORATION |
520-368 | DOUGLAS | AZ | QWEST CORPORATION |
520-370 | TUCSON | AZ | SPRINT SPECTRUM L.P. |
520-371 | CASAGRANDE | AZ | SPRINT SPECTRUM L.P. |
520-374 | CASAGRANDE | AZ | QWEST CORPORATION |
520-375 | NOGALES | AZ | QWEST CORPORATION |
520-377 | NOGALES | AZ | QWEST CORPORATION |
520-378 | SIERRAVIST | AZ | QWEST CORPORATION |
520-381 | CASAGRANDE | AZ | MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC |
520-382 | TUCSON | AZ | XSPEDIUS MANANGEMENT CO. SWITCHED SERVICES, LLC AZ |
520-383 | SELLS | AZ | TOHONO O'ODHAM UTILITY AUTHORITY |
520-384 | WILLCOX | AZ | QWEST CORPORATION |
520-385 | SAN MANUEL | AZ | QWEST CORPORATION |
520-387 | AJO | AZ | TABLE TOP TELEPHONE CO., INC. |
520-388 | TUCSON | AZ | QWEST CORPORATION |
520-390 | TUCSON | AZ | SPRINT SPECTRUM L.P. |
520-391 | CASAGRANDE | AZ | MOUNTAIN TELECOMMUNICATIONS, INC. - CLEC |
520-393 | TUCSON | AZ | QWEST CORPORATION |
520-394 | NOGALES | AZ | QWEST CORPORATION |
520-395 | TUCSON | AZ | COMCAST PHONE OF ARIZONA, LLC - AZ |
520-396 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-397 | NOGALES | AZ | QWEST CORPORATION |
520-398 | TUCSON | AZ | QWEST CORPORATION |
520-399 | TUCSON | AZ | QWEST CORPORATION |
520-400 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-401 | TUCSON | AZ | SPRINT SPECTRUM L.P. |
520-403 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-404 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-405 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-406 | TUCSON | AZ | LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC. |
520-407 | TUCSON | AZ | QWEST CORPORATION |
520-408 | TUCSON | AZ | QWEST CORPORATION |
520-409 | TUCSON | AZ | LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC. |
520-410 | TUCSON | AZ | QWEST CORPORATION |
520-411 | AZ | ||
520-413 | CASAGRANDE | AZ | LEVEL 3 COMMUNICATIONS, LLC - AZ |
520-414 | CASAGRANDE | AZ | LEVEL 3 COMMUNICATIONS, LLC - AZ |
520-417 | SIERRAVIST | AZ | QWEST CORPORATION |
520-418 | STOTONIC | AZ | GILA RIVER TELECOMM, INC. |
520-419 | TUCSON | AZ | ALLTEL COMMUNICATIONS OF THE SOUTHWEST, LP - AZ |
520-421 | CASAGRANDE | AZ | QWEST CORPORATION |
520-423 | CASAGRANDE | AZ | QWEST CORPORATION |
520-424 | CASAGRANDE | AZ | QWEST CORPORATION |
520-425 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-426 | CASAGRANDE | AZ | QWEST CORPORATION |
520-429 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-430 | MARCOPAVLG | AZ | GILA RIVER TELECOMM, INC. |
520-431 | CASAGRANDE | AZ | BLUE LICENSES HOLDING, LLC |
520-432 | BISBEE | AZ | QWEST CORPORATION |
520-434 | TUCSON | AZ | QWEST CORPORATION |
520-435 | AZ | ||
520-437 | TUCSON | AZ | XO ARIZONA, INC. |
520-439 | SIERRAVIST | AZ | QWEST CORPORATION |
520-440 | TUCSON | AZ | T-MOBILE USA, INC. |
520-443 | TUCSON | AZ | T-MOBILE USA, INC. |
520-444 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-445 | TUCSON | AZ | LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC. |
520-446 | TUCSON | AZ | QWEST CORPORATION |
520-449 | TUCSON | AZ | ALLTEL COMMUNICATIONS OF THE SOUTHWEST, LP - AZ |
520-450 | CASAGRANDE | AZ | T-MOBILE USA, INC. |
520-452 | SIERRAVIST | AZ | QWEST CORPORATION |
520-455 | NOGALES | AZ | QWEST CORPORATION |
520-456 | SIERRAVIST | AZ | QWEST CORPORATION |
520-457 | TOMBSTONE | AZ | QWEST CORPORATION |
520-458 | SIERRAVIST | AZ | QWEST CORPORATION |
520-459 | SIERRAVIST | AZ | QWEST CORPORATION |
520-461 | TUCSON | AZ | ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - AZ |
520-463 | WHITLOW | AZ | QWEST CORPORATION |
520-464 | CASAGRANDE | AZ | QWEST CORPORATION |
520-465 | TUCSON | AZ | BLUE LICENSES HOLDING, LLC |
520-466 | CASAGRANDE | AZ | QWEST CORPORATION |
520-468 | TUCSON | AZ | NEUTRAL TANDEM-ARIZONA, LLC - AZ |
520-469 | TUCSON | AZ | QWEST CORPORATION |
520-470 | NOGALES | AZ | SPRINT SPECTRUM L.P. |
520-471 | TUCSON | AZ | ALLTEL COMMUNICATIONS OF THE SOUTHWEST, LP - AZ |
520-481 | TUCSON | AZ | T-MOBILE USA, INC. |
520-483 | CASAGRANDE | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-487 | SAN MANUEL | AZ | QWEST CORPORATION |
520-488 | TUCSON | AZ | ALLTEL COMMUNICATIONS OF THE SOUTHWEST, LP - AZ |
520-489 | TUCSON | AZ | QWEST CORPORATION |
520-490 | TUCSON | AZ | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
520-491 | FLAGSTAFF | AZ | T-MOBILE USA, INC. |
520-494 | CASAGRANDE | AZ | QWEST CORPORATION |