Area Code 303 — CO
Area code 303 serves CO (M time zone) with 785 assigned prefixes. Received a call from a 303 number? Type the full number into the search box above to see its city, carrier, and community reports.
Prefixes in area code 303
| Prefix | City | State | Carrier |
|---|---|---|---|
| 303-200 | Denver | CO | TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
| 303-201 | Denver | CO | SPOK, INC. |
| 303-202 | Denver | CO | QWEST CORPORATION |
| 303-203 | Denver | CO | AMERICAN MESSAGING SERVICES, LLC |
| 303-204 | Denver | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
| 303-205 | Denver | CO | QWEST CORPORATION |
| 303-206 | Denver | CO | SPOK, INC. |
| 303-207 | Denver | CO | SPOK, INC. |
| 303-208 | Denver | CO | SPOK, INC. |
| 303-209 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-210 | Denver | CO | T-MOBILE USA, INC. |
| 303-212 | Denver | CO | AMERICAN MESSAGING SERVICES, LLC |
| 303-213 | Denver | CO | SPOK, INC. |
| 303-214 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-215 | Denver | CO | QWEST CORPORATION |
| 303-216 | Denver | CO | QWEST CORPORATION |
| 303-217 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-218 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-219 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-220 | Denver | CO | QWEST CORPORATION |
| 303-221 | Denver | CO | QWEST CORPORATION |
| 303-222 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-223 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-224 | Denver | CO | QWEST CORPORATION |
| 303-225 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-226 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-227 | Denver | CO | QWEST CORPORATION |
| 303-228 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-229 | Denver | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
| 303-230 | Denver | CO | SPOK, 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 | SPOK, INC. |
| 303-241 | Denver | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
| 303-242 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-243 | Denver | CO | N.E. COLORADO CELLULAR, INC. |
| 303-244 | Denver | CO | QWEST CORPORATION |
| 303-245 | Denver | CO | QWEST CORPORATION |
| 303-246 | Denver | CO | T-MOBILE USA, INC. |
| 303-247 | Denver | CO | QWEST CORPORATION |
| 303-248 | Denver | CO | TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
| 303-249 | Denver | CO | NEW CINGULAR WIRELESS PCS, LLC |
| 303-250 | Denver | CO | NEW CINGULAR WIRELESS PCS, LLC |
| 303-251 | Denver | CO | SPOK, INC. |
| 303-252 | Denver | CO | QWEST CORPORATION |
| 303-253 | Denver | CO | TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
| 303-254 | Denver | CO | QWEST CORPORATION |
| 303-255 | Denver | CO | QWEST CORPORATION |
| 303-256 | Denver | CO | TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
| 303-257 | Denver | CO | T-MOBILE USA, INC. |
| 303-258 | Denver | CO | QWEST CORPORATION |
| 303-259 | Denver | CO | AMERICAN MESSAGING SERVICES, LLC |
| 303-260 | Denver | CO | QWEST CORPORATION |
| 303-261 | Denver | CO | QWEST CORPORATION |
| 303-262 | Denver | CO | TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
| 303-263 | Denver | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
| 303-264 | Denver | CO | TELEPORT COMMUNICATIONS AMERICA, LLC - CO |
| 303-265 | Denver | CO | QWEST CORPORATION |
| 303-266 | Denver | CO | SPOK, INC. |
| 303-267 | Denver | CO | QWEST CORPORATION |
| 303-268 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - 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 | ONVOY, LLC - 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 | Denver | CO | QWEST CORPORATION |
| 303-284 | Denver | CO | COMCAST IP PHONE, LLC |
| 303-285 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - 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 |
| 303-300 | Denver | CO | QWEST CORPORATION |
| 303-301 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-302 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-303 | Denver | CO | HD CARRIER LLC |
| 303-304 | Fort Lupton | CO | NEW CINGULAR WIRELESS PCS, LLC |
| 303-305 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-306 | Denver | CO | QWEST CORPORATION |
| 303-307 | Denver | CO | QWEST CORPORATION |
| 303-308 | Denver | CO | QWEST CORPORATION |
| 303-309 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-310 | Denver | CO | AMERICAN MESSAGING SERVICES, LLC |
| 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 | Denver | 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 ACCESS TRANSMISSION SERVICES LLC |
| 303-324 | Denver | CO | NEW CINGULAR WIRELESS PCS, LLC |
| 303-325 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-326 | Denver | CO | QWEST CORPORATION |
| 303-327 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-328 | Denver | CO | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 303-329 | Denver | CO | QWEST CORPORATION |
| 303-330 | Denver | CO | ONVOY, LLC - 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 ACCESS TRANSMISSION SERVICES LLC |
| 303-335 | Denver | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
| 303-336 | Denver | CO | QWEST CORPORATION |
| 303-337 | Denver | CO | QWEST CORPORATION |
| 303-338 | Denver | CO | QWEST CORPORATION |
| 303-339 | Denver | CO | ONVOY, LLC - CO |
| 303-340 | Denver | CO | QWEST CORPORATION |
| 303-341 | Denver | CO | QWEST CORPORATION |
| 303-342 | Denver | CO | QWEST CORPORATION |
| 303-343 | Denver | CO | QWEST CORPORATION |
| 303-344 | Denver | CO | QWEST CORPORATION |
| 303-345 | Denver | CO | LEVEL 3 COMMUNICATIONS, LLC - CO |
| 303-346 | Denver | CO | QWEST CORPORATION |
| 303-347 | Denver | CO | QWEST CORPORATION |
| 303-348 | Denver | CO | QWEST CORPORATION |
| 303-349 | Denver | CO | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
| 303-350 | Denver | CO | NEW CINGULAR WIRELESS PCS, LLC |
| 303-351 | Deckers | CO | ONVOY, LLC - CO |
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