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Area Codes > 720 > Central Office Codes

Exchange Rate Center State Operating Company
720-313 DENVER CO SPRINT SPECTRUM L.P.
720-314 DENVER CO SPRINT SPECTRUM L.P.
720-317 DENVER CO SPRINT SPECTRUM L.P.
720-318 DENVER CO SPRINT SPECTRUM L.P.
720-319 DENVER CO SPRINT SPECTRUM L.P.
720-320 DENVER CO BLUE LICENSES HOLDING, LLC
720-321 DENVER CO QWEST CORPORATION
720-322 DENVER CO QWEST CORPORATION
720-323 DENVER CO T-MOBILE USA, INC.
720-324 AURORA CO SBC LONG DISTANCE, LLC DBA AT&T LONG DISTANCE - CO
720-327 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-329 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-330 DENVER CO ICG TELECOM GROUP - CO
720-331 DENVER CO SPRINT SPECTRUM L.P.
720-332 DENVER CO QWEST CORPORATION
720-333 DENVER CO SPRINT SPECTRUM L.P.
720-334 DENVER CO SPRINT SPECTRUM L.P.
720-335 DENVER CO SPRINT SPECTRUM L.P.
720-336 DENVER CO QWEST CORPORATION
720-338 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-339 DENVER CO SPRINT SPECTRUM L.P.
720-341 DENVER CO T-MOBILE USA, INC.
720-343 AURORA CO ICG TELECOM GROUP - CO
720-344 DENVER CO QWEST CORPORATION
720-345 DENVER CO ZIPPYTECH INCORPORATED
720-346 DENVER CO WINSTAR COMMUNICATIONS, LLC - CO
720-348 DENVER CO QWEST CORPORATION
720-350 DENVER CO SPRINT SPECTRUM L.P.
720-351 DENVER CO SPRINT SPECTRUM L.P.
720-352 DENVER CO T-MOBILE USA, INC.
720-353 DENVER CO SPRINT SPECTRUM L.P.
720-356 DENVER CO AT&T LOCAL
720-359 DENVER CO QWEST CORPORATION
720-362 DENVER CO QWEST CORPORATION
720-363 DENVER CO SPRINT SPECTRUM L.P.
720-364 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-365 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-366 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-367 AURORA CO XO COLORADO, LLC
720-368 AURORA CO XO COLORADO, LLC
720-371 DENVER CO SPRINT SPECTRUM L.P.
720-373 DENVER CO SPRINT SPECTRUM L.P.
720-374 DENVER CO QWEST CORPORATION
720-375 DENVER CO COMMNET WIRELESS, INC.
720-377 DENVER CO ALLEGIANCE TELECOM OF COLORADO, INC.
720-379 DENVER CO ICG TELECOM GROUP - CO
720-381 DENVER CO COMCAST PHONE OF COLORADO, LLC - CO
720-382 DENVER CO ESCHELON TELECOM OF COLORADO, INC. - CO
720-384 DENVER CO XO COLORADO, LLC
720-385 DENVER CO XO COLORADO, LLC
720-394 DENVER CO T-MOBILE USA, INC.
720-404 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-406 DENVER CO QWEST CORPORATION
720-407 DENVER CO SBC LONG DISTANCE, LLC DBA AT&T LONG DISTANCE - CO
720-411 CO
720-422 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-423 DENVER CO QWEST CORPORATION
720-424 DENVER CO QWEST CORPORATION
720-425 DENVER CO QWEST COMMUNICATIONS CORPORATION
720-427 AURORA CO T-MOBILE USA, INC.
720-434 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-435 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-436 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-438 LONGMONT CO 360NETWORKS (USA) INC. - CO
720-444 DENVER CO QWEST CORPORATION
720-447 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-448 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-449 DENVERSLVN CO ALLEGIANCE TELECOM OF COLORADO, INC.
720-457 DENVER CO QWEST CORPORATION
720-462 DENVER CO QWEST CORPORATION
720-468 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO
720-470 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
720-472 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
720-473 DENVER CO AFFINITY TELECOM, INC. DBA C-COM - CO
720-475 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
720-479 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
720-480 DENVER CO BLUE LICENSES HOLDING, LLC
720-482 DENVER CO QWEST CORPORATION
720-488 DENVER CO QWEST CORPORATION
720-489 DENVER CO QWEST CORPORATION
720-490 DENVER CO NEXTEL COMMUNICATIONS, INC.
720-493 DENVER CO QWEST CORPORATION
720-494 LONGMONT CO QWEST CORPORATION
720-495 DENVER CO LEAP WIRELESS INTL, INC. DBA CRICKET COMM, INC.
720-496 DENVER CO LEVEL 3 COMMUNICATIONS, LLC - CO
720-497 DENVER CO QWEST CORPORATION
720-506 DENVERSLVN CO LEVEL 3 COMMUNICATIONS, LLC - CO
720-511 CO
720-514 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
720-519 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
720-521 DENVERSLVN CO AMERICAN MESSAGING (AM), INC.
720-524 DENVER CO QWEST CORPORATION
720-528 DENVER CO QWEST CORPORATION
720-529 DENVER CO QWEST CORPORATION
720-530 DENVER CO BLUE LICENSES HOLDING, LLC
720-532 AURORA CO TELEPORT COMMUNICATIONS GROUP - CO
720-533 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
720-535 DENVERSLVN CO TELEPORT COMMUNICATIONS GROUP - CO
720-536 DENVER CO QWEST CORPORATION
720-540 DENVER CO QWEST CORPORATION