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Area Codes > 303 > Central Office Codes

Exchange Rate Center State Operating Company
303-401 DENVER CO QWEST CORPORATION
303-402 DENVER CO QWEST CORPORATION
303-403 DENVER CO QWEST CORPORATION
303-404 DENVER CO QWEST CORPORATION
303-405 DENVER CO QWEST CORPORATION
303-406 DENVER CO ICG TELECOM GROUP - CO
303-407 DENVER CO WINSTAR COMMUNICATIONS, LLC - CO
303-408 DENVER CO BLUE LICENSES HOLDING, LLC
303-409 DENVER CO ICG TELECOM GROUP - CO
303-410 DENVER CO QWEST CORPORATION
303-411 CO
303-412 DENVER CO QWEST CORPORATION
303-413 DENVER CO QWEST CORPORATION
303-414 DENVER CO ICG TELECOM GROUP - CO
303-415 DENVER CO QWEST CORPORATION
303-416 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-417 DENVER CO QWEST CORPORATION
303-418 AURORA CO ICG TELECOM GROUP - CO
303-419 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-420 DENVER CO QWEST CORPORATION
303-421 DENVER CO QWEST CORPORATION
303-422 DENVER CO QWEST CORPORATION
303-423 DENVER CO QWEST CORPORATION
303-424 DENVER CO QWEST CORPORATION
303-425 DENVER CO QWEST CORPORATION
303-426 DENVER CO QWEST CORPORATION
303-427 DENVER CO QWEST CORPORATION
303-428 DENVER CO QWEST CORPORATION
303-429 DENVER CO QWEST CORPORATION
303-430 DENVER CO QWEST CORPORATION
303-431 DENVER CO QWEST CORPORATION
303-432 DENVER CO QWEST CORPORATION
303-433 DENVER CO QWEST CORPORATION
303-434 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-435 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-436 DENVER CO QWEST CORPORATION
303-437 DENVER CO SPRINT SPECTRUM L.P.
303-438 DENVER CO QWEST CORPORATION
303-439 DENVER CO QWEST CORPORATION
303-440 DENVER CO QWEST CORPORATION
303-441 DENVER CO QWEST CORPORATION
303-442 DENVER CO QWEST CORPORATION
303-443 DENVER CO QWEST CORPORATION
303-444 DENVER CO QWEST CORPORATION
303-445 DENVER CO QWEST CORPORATION
303-446 DENVER CO QWEST CORPORATION
303-447 DENVER CO QWEST CORPORATION
303-448 DENVER CO QWEST CORPORATION
303-449 DENVER CO QWEST CORPORATION
303-450 DENVER CO QWEST CORPORATION
303-451 DENVER CO QWEST CORPORATION
303-452 DENVER CO QWEST CORPORATION
303-453 DENVER CO QWEST CORPORATION
303-454 DENVER CO QWEST CORPORATION
303-455 DENVER CO QWEST CORPORATION
303-456 DENVER CO QWEST CORPORATION
303-457 DENVER CO QWEST CORPORATION
303-458 DENVER CO QWEST CORPORATION
303-459 DENVER CO QWEST CORPORATION
303-460 DENVER CO QWEST CORPORATION
303-461 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-462 DENVER CO QWEST CORPORATION
303-463 DENVER CO QWEST CORPORATION
303-464 DENVER CO QWEST CORPORATION
303-465 DENVER CO QWEST CORPORATION
303-466 DENVER CO QWEST CORPORATION
303-467 DENVER CO QWEST CORPORATION
303-468 DENVER CO CBEYOND COMMUNICATIONS, LLC-CO
303-469 DENVER CO QWEST CORPORATION
303-470 DENVER CO QWEST CORPORATION
303-471 DENVER CO QWEST CORPORATION
303-472 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-473 DENVER CO QWEST CORPORATION
303-474 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-475 DENVER CO BLUE LICENSES HOLDING, LLC
303-476 DENVER CO MCIMETRO, ATS, INC.
303-477 DENVER CO QWEST CORPORATION
303-478 DENVER CO BLUE LICENSES HOLDING, LLC
303-479 BRIGHTON CO TELEPORT COMMUNICATIONS GROUP - CO
303-480 DENVER CO QWEST CORPORATION
303-481 DENVERSLVN CO MCIMETRO, ATS, INC.
303-482 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-483 DENVER CO ICG TELECOM GROUP - CO
303-484 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-485 LONGMONT CO QWEST CORPORATION
303-486 DENVER CO QWEST CORPORATION
303-487 DENVER CO QWEST CORPORATION
303-488 DENVER CO QWEST CORPORATION
303-489 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-490 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-491 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-492 DENVER CO QWEST CORPORATION
303-493 DENVER CO ICG TELECOM GROUP - CO
303-494 DENVER CO QWEST CORPORATION
303-495 DENVER CO MCIMETRO, ATS, INC.
303-496 DENVER CO XO COLORADO, LLC
303-497 DENVER CO QWEST CORPORATION
303-498 BRIGHTON CO COMCAST PHONE OF COLORADO, LLC - CO
303-499 DENVER CO QWEST CORPORATION
303-500 HUDSON CO COMMPARTNERS, LLC - CO