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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