Area Codes > 303 > Central Office Codes
Exchange | Rate Center | State | Operating Company |
---|---|---|---|
303-300 | DENVER | CO | QWEST CORPORATION |
303-301 | DENVER | CO | ICG TELECOM GROUP - CO |
303-302 | DENVER | CO | XO COLORADO, LLC |
303-304 | FORTLUPTON | CO | BLUE LICENSES HOLDING, LLC |
303-305 | DENVER | CO | MCIMETRO, ATS, INC. |
303-306 | DENVERSLVN | CO | QWEST CORPORATION |
303-307 | DENVER | CO | QWEST CORPORATION |
303-308 | DENVER | CO | QWEST CORPORATION |
303-309 | DENVERSLVN | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-310 | DENVER | CO | CONTACT PAGING OF COLORADO, INC. |
303-311 | CO | ||
303-312 | DENVER | CO | QWEST CORPORATION |
303-313 | DENVER | CO | QWEST CORPORATION |
303-314 | DENVER | CO | QWEST CORPORATION |
303-315 | DENVER | CO | QWEST CORPORATION |
303-316 | DENVER | CO | QWEST CORPORATION |
303-317 | AURORA | CO | QWEST CORPORATION |
303-318 | DENVER | CO | QWEST CORPORATION |
303-319 | DENVER | CO | ELBERT COUNTY WIRELESS, LLC |
303-320 | DENVER | CO | QWEST CORPORATION |
303-321 | DENVER | CO | QWEST CORPORATION |
303-322 | DENVER | CO | QWEST CORPORATION |
303-323 | DENVER | CO | MCIMETRO, ATS, INC. |
303-324 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-325 | DENVER | CO | ICG TELECOM GROUP - CO |
303-326 | AURORA | CO | QWEST CORPORATION |
303-327 | DENVER | CO | ICG TELECOM GROUP - CO |
303-328 | DENVER | CO | MCIMETRO, ATS, INC. |
303-329 | DENVER | CO | QWEST CORPORATION |
303-330 | DENVER | CO | 360NETWORKS (USA) INC. - CO |
303-331 | DENVER | CO | QWEST CORPORATION |
303-332 | DENVER | CO | T-MOBILE USA, INC. |
303-333 | DENVER | CO | QWEST CORPORATION |
303-334 | DENVER | CO | MCIMETRO, ATS, INC. |
303-335 | DENVER | CO | WINSTAR COMMUNICATIONS, LLC - CO |
303-336 | DENVER | CO | QWEST CORPORATION |
303-337 | DENVERSLVN | CO | QWEST CORPORATION |
303-338 | DENVERSLVN | CO | QWEST CORPORATION |
303-339 | DENVER | CO | CBEYOND COMMUNICATIONS, LLC-CO |
303-340 | AURORA | CO | QWEST CORPORATION |
303-341 | AURORA | CO | QWEST CORPORATION |
303-342 | AURORA | CO | QWEST CORPORATION |
303-343 | AURORA | CO | QWEST CORPORATION |
303-344 | AURORA | CO | QWEST CORPORATION |
303-345 | DENVER | CO | ICG TELECOM GROUP - CO |
303-346 | DENVER | CO | QWEST CORPORATION |
303-347 | DENVER | CO | QWEST CORPORATION |
303-348 | AURORA | CO | QWEST CORPORATION |
303-349 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-350 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-351 | DECKERS | CO | 360NETWORKS (USA) INC. - CO |
303-352 | DENVER | CO | QWEST CORPORATION |
303-353 | DENVERSLVN | CO | COMCAST PHONE OF COLORADO, LLC - CO |
303-354 | DENVER | CO | MCIMETRO, ATS, INC. |
303-355 | DENVER | CO | QWEST CORPORATION |
303-356 | DENVER | CO | NEXTEL COMMUNICATIONS, INC. |
303-357 | DENVER | CO | MCIMETRO, ATS, INC. |
303-358 | DENVER | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
303-359 | DENVER | CO | T-MOBILE USA, INC. |
303-360 | AURORA | CO | QWEST CORPORATION |
303-361 | AURORA | CO | QWEST CORPORATION |
303-362 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-363 | AURORA | CO | QWEST CORPORATION |
303-364 | AURORA | CO | QWEST CORPORATION |
303-365 | AURORA | CO | QWEST CORPORATION |
303-366 | AURORA | CO | QWEST CORPORATION |
303-367 | AURORA | CO | QWEST CORPORATION |
303-368 | DENVERSLVN | CO | QWEST CORPORATION |
303-369 | DENVERSLVN | CO | QWEST CORPORATION |
303-370 | DENVER | CO | QWEST CORPORATION |
303-371 | DENVER | CO | QWEST CORPORATION |
303-372 | DENVER | CO | QWEST CORPORATION |
303-373 | DENVER | CO | QWEST CORPORATION |
303-374 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-375 | DENVER | CO | QWEST CORPORATION |
303-376 | DENVER | CO | ICG TELECOM GROUP - CO |
303-377 | DENVER | CO | QWEST CORPORATION |
303-378 | DENVER | CO | BLUE LICENSES HOLDING, LLC |
303-379 | DENVER | CO | TELEPORT COMMUNICATIONS GROUP - CO |
303-380 | DENVER | CO | QWEST CORPORATION |
303-381 | DENVER | CO | ICG TELECOM GROUP - CO |
303-382 | DENVER | CO | QWEST CORPORATION |
303-383 | DENVER | CO | QWEST CORPORATION |
303-384 | DENVER | CO | QWEST CORPORATION |
303-385 | DENVER | CO | ICG TELECOM GROUP - CO |
303-386 | DENVER | CO | ICG TELECOM GROUP - CO |
303-387 | DENVER | CO | TIME WARNER TELECOM OF COLORADO LLC-CO |
303-388 | DENVER | CO | QWEST CORPORATION |
303-389 | DENVER | CO | QWEST CORPORATION |
303-390 | DENVER | CO | MCIMETRO, ATS, INC. |
303-391 | DENVER | CO | QWEST CORPORATION |
303-392 | DENVER | CO | CONTACT PAGING OF COLORADO, INC. |
303-393 | DENVER | CO | QWEST CORPORATION |
303-394 | DENVER | CO | QWEST CORPORATION |
303-395 | DENVER | CO | GLOBAL CROSSING LOCAL SERVICES, INC.-CO |
303-396 | DENVER | CO | LIVE WIRE NETWORKS, INC. - CO |
303-397 | DENVER | CO | QWEST CORPORATION |
303-398 | DENVER | CO | QWEST CORPORATION |
303-399 | DENVER | CO | QWEST CORPORATION |
303-400 | DENVER | CO | QWEST CORPORATION |