Area Codes > 303 > Central Office Codes
Exchange | Rate Center | State | Operating Company |
---|---|---|---|
303-501 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-502 | FORTLUPTON | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-503 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-504 | DENVER | CO | QWEST CORPORATION |
303-505 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-506 | FORTLUPTON | CO | BLUE LICENSES HOLDING, LLC |
303-507 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-508 | DENVER | CO | AMERICAN MESSAGING (AM), INC. |
303-509 | DENVER | CO | AMERICAN MESSAGING (AM), INC. |
303-510 | DENVER | CO | AMERICAN MESSAGING (AM), INC. |
303-511 | CO | ||
303-512 | DENVER | CO | QWEST CORPORATION |
303-513 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-514 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-515 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-516 | DENVER | CO | QWEST CORPORATION |
303-517 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-518 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-519 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-520 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-521 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-522 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-523 | DENVER | CO | T-MOBILE USA, INC. |
303-524 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-525 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-526 | DENVER | CO | QWEST CORPORATION |
303-527 | DENVER | CO | QWEST CORPORATION |
303-528 | DENVER | CO | AMERICAN MESSAGING (AM), INC. |
303-529 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-530 | DENVER | CO | QWEST CORPORATION |
303-531 | DENVER | CO | MCIMETRO, ATS, INC. |
303-532 | LONGMONT | CO | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO |
303-533 | DENVER | CO | QWEST CORPORATION |
303-534 | DENVER | CO | QWEST CORPORATION |
303-535 | CO | ||
303-536 | HUDSON | CO | QWEST CORPORATION |
303-537 | AURORA | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-538 | DENVER | CO | QWEST CORPORATION |
303-539 | DENVER | CO | XO COLORADO, LLC |
303-540 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-541 | DENVER | CO | QWEST CORPORATION |
303-542 | DENVER | CO | MCIMETRO, ATS, INC. |
303-543 | DENVER | CO | QWEST CORPORATION |
303-544 | DENVER | CO | QWEST CORPORATION |
303-545 | DENVER | CO | QWEST CORPORATION |
303-546 | DENVER | CO | QWEST CORPORATION |
303-547 | DENVER | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-548 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-549 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-550 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-551 | DENVER | CO | MCIMETRO, ATS, INC. |
303-552 | DENVER | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-553 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-554 | DENVER | CO | QWEST CORPORATION |
303-555 | DENVER | CO | QWEST CORPORATION |
303-556 | DENVER | CO | QWEST CORPORATION |
303-557 | AURORA | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-558 | BRIGHTON | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-559 | DENVER | CO | AMERICAN MESSAGING (AM), INC. |
303-560 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-561 | DENVER | CO | QWEST CORPORATION |
303-562 | DENVER | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-563 | DENVER | CO | ICG TELECOM GROUP - CO |
303-564 | DENVER | CO | T-MOBILE USA, INC. |
303-565 | DENVER | CO | MCIMETRO, ATS, INC. |
303-566 | DENVER | CO | MCIMETRO, ATS, INC. |
303-567 | DENVER | CO | QWEST CORPORATION |
303-568 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-569 | GEORGETOWN | CO | QWEST CORPORATION |
303-570 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-571 | DENVER | CO | QWEST CORPORATION |
303-572 | DENVER | CO | QWEST CORPORATION |
303-573 | DENVER | CO | QWEST CORPORATION |
303-574 | DENVER | CO | QWEST CORPORATION |
303-575 | DENVER | CO | QWEST CORPORATION |
303-576 | DENVER | CO | QWEST CORPORATION |
303-577 | AURORA | CO | ESCHELON TELECOM OF COLORADO, INC. - CO |
303-578 | KEENESBURG | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
303-579 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-580 | DENVER | CO | AMERICAN MESSAGING (AM), INC. |
303-581 | DENVER | CO | QWEST CORPORATION |
303-582 | DENVER | CO | QWEST CORPORATION |
303-583 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-584 | DENVER | CO | QWEST CORPORATION |
303-585 | DENVER | CO | QWEST CORPORATION |
303-586 | DENVER | CO | 4DVISION, LLC - CO |
303-587 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-588 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-589 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-590 | DENVER | CO | ICG TELECOM GROUP - CO |
303-591 | DENVER | CO | NEXTEL COMMUNICATIONS, INC. |
303-592 | DENVER | CO | QWEST CORPORATION |
303-593 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-594 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-595 | DENVER | CO | QWEST CORPORATION |
303-596 | DENVER | CO | SPRINT SPECTRUM L.P. |
303-597 | DENVERSLVN | CO | ESCHELON TELECOM OF COLORADO, INC. - CO |
303-598 | DENVER | CO | NEXTEL COMMUNICATIONS, INC. |
303-599 | DENVER | CO | ARCH WIRELESS HOLDINGS, INC. |
303-600 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |