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Area Codes > 303 > Central Office Codes

Exchange Rate Center State Operating Company
303-200 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-201 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-202 DENVER CO QWEST CORPORATION
303-203 DENVER CO AMERICAN MESSAGING (AM), INC.
303-204 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-205 DENVER CO QWEST CORPORATION
303-206 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-207 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-208 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-209 DENVER CO MCIMETRO, ATS, INC.
303-210 DENVER CO NEXTEL COMMUNICATIONS, INC.
303-211 CO
303-212 DENVER CO CONTACT PAGING OF COLORADO, INC.
303-213 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-214 AURORA CO MCIMETRO, ATS, INC.
303-215 DENVER CO QWEST CORPORATION
303-216 DENVER CO QWEST CORPORATION
303-217 DENVER CO MCIMETRO, ATS, INC.
303-218 DENVER CO MCIMETRO, ATS, INC.
303-219 BRIGHTON CO MCIMETRO, ATS, INC.
303-220 DENVER CO QWEST CORPORATION
303-221 DENVER CO QWEST CORPORATION
303-222 DENVER CO MCIMETRO, ATS, INC.
303-223 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-224 DENVER CO QWEST CORPORATION
303-225 DENVER CO GLOBAL CROSSING LOCAL SERVICES, INC.-CO
303-226 DENVER CO ICG TELECOM GROUP - CO
303-227 DENVER CO QWEST CORPORATION
303-228 DENVER CO ICG TELECOM GROUP - CO
303-229 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-230 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-231 DENVER CO QWEST CORPORATION
303-232 DENVER CO QWEST CORPORATION
303-233 DENVER CO QWEST CORPORATION
303-234 DENVER CO QWEST CORPORATION
303-235 DENVER CO QWEST CORPORATION
303-236 DENVER CO QWEST CORPORATION
303-237 DENVER CO QWEST CORPORATION
303-238 DENVER CO QWEST CORPORATION
303-239 DENVER CO QWEST CORPORATION
303-240 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-241 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-242 DENVER CO MCIMETRO, ATS, INC.
303-243 DENVER CO CELLULAR ONE OF NE COLORADO
303-244 DENVER CO QWEST CORPORATION
303-245 DENVER CO QWEST CORPORATION
303-246 DENVER CO SPRINT SPECTRUM L.P.
303-247 DENVER CO QWEST CORPORATION
303-248 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-249 DENVER CO BLUE LICENSES HOLDING, LLC
303-250 DENVER CO BLUE LICENSES HOLDING, LLC
303-251 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-252 DENVER CO QWEST CORPORATION
303-253 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-254 DENVER CO QWEST CORPORATION
303-255 DENVER CO QWEST CORPORATION
303-256 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-257 DENVER CO SPRINT SPECTRUM L.P.
303-258 DENVER CO QWEST CORPORATION
303-259 DENVER CO AMERICAN MESSAGING (AM), INC.
303-260 DENVER CO QWEST CORPORATION
303-261 AURORA CO QWEST CORPORATION
303-262 DENVER CO AT&T LOCAL
303-263 DENVER CO CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO
303-264 DENVER CO TELEPORT COMMUNICATIONS GROUP - CO
303-265 DENVER CO QWEST CORPORATION
303-266 DENVER CO ARCH WIRELESS HOLDINGS, INC.
303-267 DENVER CO QWEST CORPORATION
303-268 DENVER CO ICG TELECOM GROUP - CO
303-269 DENVER CO QWEST CORPORATION
303-270 DENVER CO QWEST CORPORATION
303-271 DENVER CO QWEST CORPORATION
303-272 DENVER CO QWEST CORPORATION
303-273 DENVER CO QWEST CORPORATION
303-274 DENVER CO QWEST CORPORATION
303-275 DENVER CO QWEST CORPORATION
303-276 DENVER CO CONVERGENT COMMUNICATIONS, INC. - CO
303-277 DENVER CO QWEST CORPORATION
303-278 DENVER CO QWEST CORPORATION
303-279 DENVER CO QWEST CORPORATION
303-280 DENVER CO QWEST CORPORATION
303-281 DENVER CO QWEST CORPORATION
303-282 DENVER CO QWEST CORPORATION
303-283 DENVERSLVN CO QWEST CORPORATION
303-284 DENVER CO MEDIAONE TELECOMM CORP., DBA AT&T BROADBAND
303-285 DENVER CO ICG TELECOM GROUP - CO
303-286 DENVER CO QWEST CORPORATION
303-287 DENVER CO QWEST CORPORATION
303-288 DENVER CO QWEST CORPORATION
303-289 DENVER CO QWEST CORPORATION
303-290 DENVER CO QWEST CORPORATION
303-291 DENVER CO QWEST CORPORATION
303-292 DENVER CO QWEST CORPORATION
303-293 DENVER CO QWEST CORPORATION
303-294 DENVER CO QWEST CORPORATION
303-295 DENVER CO QWEST CORPORATION
303-296 DENVER CO QWEST CORPORATION
303-297 DENVER CO QWEST CORPORATION
303-298 DENVER CO QWEST CORPORATION
303-299 DENVER CO QWEST CORPORATION