Reference Data
Area Code Directory
Area Code 720 — Denver, Aurora, Fort Collins, Colorado

Area Code 720 — Denver, Aurora, Fort Collins, Colorado

Active

Data last updated: March 10, 2026

State
Colorado
Country
US
Timezone
America/Denver
Assigned
January 12, 2001
Exchanges (NXX)
785
Carriers
52
Rate Centers
12
Overlay
Yes — 303, 983

Top Carriers

Carrier OCN NXX Count
T-MOBILE USA, INC. 6529 132
QWEST CORPORATION 9636 103
NEW CINGULAR WIRELESS PCS, LLC 6010 91
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 74
BANDWIDTH.COM CLEC, LLC - CO 078F 55
ONVOY, LLC - CO 026D 53
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 51
LEVEL 3 COMMUNICATIONS, LLC - CO 6118 46
TELEPORT COMMUNICATIONS AMERICA, LLC - CO 7378 31
COMCAST IP PHONE, LLC 318J 21

Rate Centers

DENVER LONGMONT ALLNSPKLYN KEENESBURG HUDSON FORTLUPTON GEORGETOWN DEER TRAIL DECKERS STRASBURG BYERS BENNETT

Exchange Listings (NXX)

NPA-NXX Carrier Rate Center Type LATA Status
720-200 QWEST CORPORATION DENVER Landline 656 active
720-201 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-202 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-203 T-MOBILE USA, INC. DENVER Wireless 656 active
720-204 LEVEL 3 COMMUNICATIONS, LLC - CO LONGMONT Landline 656 active
720-205 T-MOBILE USA, INC. DENVER Wireless 656 active
720-206 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-207 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-208 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-209 T-MOBILE USA, INC. DENVER Wireless 656 active
720-210 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-212 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-213 PAETEC ITEL, LLC DENVER VoIP 656 active
720-214 PAETEC ITEL, LLC DENVER VoIP 656 active
720-215 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-216 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER Landline 656 active
720-217 T-MOBILE USA, INC. DENVER Wireless 656 active
720-218 T-MOBILE USA, INC. DENVER Wireless 656 active
720-219 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-220 T-MOBILE USA, INC. DENVER Wireless 656 active
720-221 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-222 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-223 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-224 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-225 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-226 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-227 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-230 XO COLORADO, LLC DENVER Landline 656 active
720-231 T-MOBILE USA, INC. DENVER Wireless 656 active
720-232 T-MOBILE USA, INC. DENVER Wireless 656 active
720-233 T-MOBILE USA, INC. DENVER Wireless 656 active
720-234 T-MOBILE USA, INC. DENVER Wireless 656 active
720-235 T-MOBILE USA, INC. DENVER Wireless 656 active
720-236 T-MOBILE USA, INC. DENVER Wireless 656 active
720-237 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-238 T-MOBILE USA, INC. DENVER Wireless 656 active
720-239 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER Landline 656 active
720-240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-241 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-242 QWEST CORPORATION DENVER Landline 656 active
720-243 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-244 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-245 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-246 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-247 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-248 ONVOY, LLC - CO DENVER Landline 656 active
720-249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-250 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-251 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-252 T-MOBILE USA, INC. DENVER Wireless 656 active
720-253 T-MOBILE USA, INC. DENVER Wireless 656 active
720-254 T-MOBILE USA, INC. DENVER Wireless 656 active
720-255 T-MOBILE USA, INC. DENVER Wireless 656 active
720-256 T-MOBILE USA, INC. DENVER Wireless 656 active
720-257 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-258 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER Landline 656 active
720-259 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-260 T-MOBILE USA, INC. DENVER Wireless 656 active
720-261 T-MOBILE USA, INC. DENVER Wireless 656 active
720-262 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-263 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-264 QWEST CORPORATION DENVER Landline 656 active
720-265 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-266 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-267 QWEST CORPORATION DENVER Landline 656 active
720-268 QWEST CORPORATION DENVER Landline 656 active
720-269 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-270 T-MOBILE USA, INC. DENVER Wireless 656 active
720-271 T-MOBILE USA, INC. DENVER Wireless 656 active
720-272 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-273 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-274 PAETEC ITEL, LLC DENVER VoIP 656 active
720-275 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-276 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-277 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-278 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-279 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-280 T-MOBILE USA, INC. DENVER Wireless 656 active
720-281 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-282 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-283 QWEST CORPORATION DENVER Landline 656 active
720-284 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-285 XO COLORADO, LLC DENVER Landline 656 active
720-286 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER Landline 656 active
720-287 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-288 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-289 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-290 T-MOBILE USA, INC. DENVER Wireless 656 active
720-291 T-MOBILE USA, INC. DENVER Wireless 656 active
720-292 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-293 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-294 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-295 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-296 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-297 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-298 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-299 T-MOBILE USA, INC. DENVER Wireless 656 active
720-300 T-MOBILE USA, INC. DENVER Wireless 656 active
720-301 T-MOBILE USA, INC. DENVER Wireless 656 active
720-302 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-303 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-304 QWEST CORPORATION DENVER Landline 656 active
720-305 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-306 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-307 AT&T - LOCAL ALLNSPKLYN Landline 656 active
720-308 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-309 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-310 TELEPORT COMMUNICATIONS AMERICA, LLC - CO ALLNSPKLYN VoIP 656 active
720-312 T-MOBILE USA, INC. DENVER Wireless 656 active
720-313 T-MOBILE USA, INC. DENVER Wireless 656 active
720-314 T-MOBILE USA, INC. DENVER Wireless 656 active
720-315 ONVOY, LLC - CO DENVER Landline 656 active
720-316 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-317 T-MOBILE USA, INC. DENVER Wireless 656 active
720-318 T-MOBILE USA, INC. DENVER Wireless 656 active
720-319 T-MOBILE USA, INC. DENVER Wireless 656 active
720-320 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-321 QWEST CORPORATION DENVER Landline 656 active
720-322 QWEST CORPORATION DENVER Landline 656 active
720-323 T-MOBILE USA, INC. DENVER Wireless 656 active
720-324 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-325 T-MOBILE USA, INC. DENVER Wireless 656 active
720-326 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-327 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-328 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-329 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-330 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-331 T-MOBILE USA, INC. DENVER Wireless 656 active
720-332 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-333 T-MOBILE USA, INC. DENVER Wireless 656 active
720-334 T-MOBILE USA, INC. DENVER Wireless 656 active
720-335 T-MOBILE USA, INC. DENVER Wireless 656 active
720-336 BANDWIDTH.COM CLEC, LLC - CO KEENESBURG VoIP 656 active
720-337 QWEST CORPORATION DENVER Landline 656 active
720-338 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-339 T-MOBILE USA, INC. DENVER Wireless 656 active
720-340 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO LONGMONT Wireless 656 active
720-341 T-MOBILE USA, INC. DENVER Wireless 656 active
720-342 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-343 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-344 QWEST CORPORATION DENVER Landline 656 active
720-345 ZIPPYTECH INCORPORATED DENVER Landline 656 active
720-346 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-347 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-348 QWEST CORPORATION DENVER Landline 656 active
720-349 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-350 T-MOBILE USA, INC. DENVER Wireless 656 active
720-351 T-MOBILE USA, INC. DENVER Wireless 656 active
720-352 T-MOBILE USA, INC. DENVER Wireless 656 active
720-353 T-MOBILE USA, INC. DENVER Wireless 656 active
720-354 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-355 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-356 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-357 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-358 MCIMETRO ACCESS TRANSMISSION SERVICES LLC HUDSON Landline 656 active
720-359 QWEST CORPORATION DENVER Landline 656 active
720-360 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-361 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-362 QWEST CORPORATION DENVER Landline 656 active
720-363 METROPCS, INC. DENVER Wireless 656 active
720-364 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-365 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-366 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-367 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-368 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-369 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-370 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-371 T-MOBILE USA, INC. DENVER Wireless 656 active
720-372 T-MOBILE USA, INC. DENVER Wireless 656 active
720-373 T-MOBILE USA, INC. DENVER Wireless 656 active
720-374 QWEST CORPORATION DENVER Landline 656 active
720-375 COMMNET WIRELESS, LLC DENVER Wireless 656 active
720-376 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-377 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-378 NEW CINGULAR WIRELESS PCS, LLC LONGMONT Wireless 656 active
720-379 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-380 T-MOBILE USA, INC. DENVER Wireless 656 active
720-381 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-382 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-383 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO FORTLUPTON Wireless 656 active
720-384 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-385 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-386 BANDWIDTH.COM CLEC, LLC - CO GEORGETOWN VoIP 656 active
720-387 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-389 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-390 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-391 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DEER TRAIL Wireless 656 active
720-393 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-394 T-MOBILE USA, INC. DENVER Wireless 656 active
720-395 AT&T - LOCAL DENVER Landline 656 active
720-396 AT&T - LOCAL DENVER Landline 656 active
720-397 AT&T - LOCAL DENVER Landline 656 active
720-398 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-399 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-400 T-MOBILE USA, INC. DENVER Wireless 656 active
720-401 T-MOBILE USA, INC. DENVER Wireless 656 active
720-402 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-403 PEERLESS NETWORK OF COLORADO, LLC - CO DENVER Landline 656 active
720-404 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-405 INTRADO COMMUNICATIONS, LLC DENVER Landline 656 active
720-406 QWEST CORPORATION DENVER Landline 656 active
720-407 ONVOY, LLC - CO DENVER Landline 656 active
720-408 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-409 PAETEC ITEL, LLC DENVER VoIP 656 active
720-410 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-412 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-413 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-414 LEVEL 3 COMMUNICATIONS, LLC - CO ALLNSPKLYN Landline 656 active
720-415 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-416 METROPCS, INC. DENVER Wireless 656 active
720-417 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-418 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-419 T-MOBILE USA, INC. DENVER Wireless 656 active
720-420 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-421 T-MOBILE USA, INC. DENVER Wireless 656 active
720-422 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-423 QWEST CORPORATION DENVER Landline 656 active
720-424 QWEST CORPORATION DENVER Landline 656 active
720-425 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-426 QWEST CORPORATION DENVER Landline 656 active
720-427 T-MOBILE USA, INC. DENVER Wireless 656 active
720-428 ONVOY, LLC - CO DENVER Landline 656 active
720-429 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-430 AT&T - LOCAL DENVER Landline 656 active
720-431 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-432 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-433 QWEST CORPORATION DENVER Landline 656 active
720-434 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-435 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-436 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-437 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-438 ONVOY, LLC - CO LONGMONT Landline 656 active
720-439 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-440 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-441 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-442 BANDWIDTH.COM CLEC, LLC - CO LONGMONT VoIP 656 active
720-443 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-444 QWEST CORPORATION DENVER Landline 656 active
720-445 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-446 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-447 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-448 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-449 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-450 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-451 T-MOBILE USA, INC. DENVER Wireless 656 active
720-452 PEERLESS NETWORK OF COLORADO, LLC - CO DENVER Landline 656 active
720-453 T-MOBILE USA, INC. LONGMONT Wireless 656 active
720-454 PAETEC ITEL, LLC DENVER VoIP 656 active
720-455 QWEST CORPORATION DENVER Landline 656 active
720-456 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-457 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-458 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-459 ONVOY, LLC - CO DENVER Landline 656 active
720-460 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-461 METROPCS, INC. DENVER Wireless 656 active
720-462 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-463 ONVOY, LLC - CO DECKERS Landline 656 active
720-464 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-465 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-466 NEW CINGULAR WIRELESS PCS, LLC FORTLUPTON Wireless 656 active
720-467 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-468 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-469 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-470 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-471 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-472 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-473 ONVOY, LLC - CO DENVER Landline 656 active
720-474 T-MOBILE USA, INC. DENVER Wireless 656 active
720-475 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-476 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-477 ONVOY, LLC - CO DENVER Landline 656 active
720-478 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-479 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER Landline 656 active
720-480 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-481 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-482 QWEST CORPORATION DENVER Landline 656 active
720-483 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-484 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-485 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-486 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-487 TELNYX LLC LONGMONT VoIP 656 active
720-488 QWEST CORPORATION DENVER Landline 656 active
720-489 QWEST CORPORATION DENVER Landline 656 active
720-490 T-MOBILE USA, INC. DENVER Wireless 656 active
720-491 NEW CINGULAR WIRELESS PCS, LLC LONGMONT Wireless 656 active
720-492 T-MOBILE USA, INC. DENVER Wireless 656 active
720-493 QWEST CORPORATION DENVER Landline 656 active
720-494 QWEST CORPORATION LONGMONT Landline 656 active
720-495 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-496 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-497 QWEST CORPORATION DENVER Landline 656 active
720-498 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-499 T-MOBILE USA, INC. DENVER Wireless 656 active
720-500 PEERLESS NETWORK OF COLORADO, LLC - CO DENVER Landline 656 active
720-501 METROPCS, INC. DENVER Wireless 656 active
720-502 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-503 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-504 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-505 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-506 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-507 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-508 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-509 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-510 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-512 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-513 ONVOY, LLC - CO DENVER Landline 656 active
720-514 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER Landline 656 active
720-515 BANDWIDTH.COM CLEC, LLC - CO DENVER VoIP 656 active
720-516 QWEST CORPORATION DENVER Landline 656 active
720-517 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-518 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-519 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-520 ONVOY SPECTRUM, LLC DENVER Wireless 656 active
720-521 AMERICAN MESSAGING SERVICES, LLC DENVER Landline 656 active
720-522 MCIMETRO ACCESS TRANSMISSION SERVICES LLC DENVER Landline 656 active
720-523 QWEST CORPORATION DENVER Landline 656 active
720-524 QWEST CORPORATION DENVER Landline 656 active
720-525 T-MOBILE USA, INC. DENVER Wireless 656 active
720-526 NEW CINGULAR WIRELESS PCS, LLC LONGMONT Wireless 656 active
720-527 TELIAX, INC. - CO DENVER Landline 656 active
720-528 QWEST CORPORATION DENVER Landline 656 active
720-529 QWEST CORPORATION DENVER Landline 656 active
720-530 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-531 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-532 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-533 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-534 VONAGE AMERICA LLC LONGMONT VoIP 656 active
720-535 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-536 QWEST CORPORATION DENVER Landline 656 active
720-537 FASTTRACK COMMUNICATIONS, INC. - CO DENVER Landline 656 active
720-538 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO FORTLUPTON Wireless 656 active
720-539 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-540 QWEST CORPORATION DENVER Landline 656 active
720-541 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-542 QWEST CORPORATION DENVER Landline 656 active
720-543 PEERLESS NETWORK OF COLORADO, LLC - CO DENVER Landline 656 active
720-544 QWEST CORPORATION DENVER Landline 656 active
720-545 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-546 T-MOBILE USA, INC. DENVER Wireless 656 active
720-547 BANDWIDTH.COM CLEC, LLC - CO KEENESBURG VoIP 656 active
720-548 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-549 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-550 PAETEC ITEL, LLC DENVER VoIP 656 active
720-551 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
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720-919 T-MOBILE USA, INC. DENVER Wireless 656 active
720-920 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-921 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-922 QWEST CORPORATION DENVER Landline 656 active
720-923 ADVANCED TELECOM SOLUTIONS, LLC DENVER VoIP 656 active
720-924 QWEST CORPORATION DECKERS Landline 656 active
720-925 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-926 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-927 BANDWIDTH.COM CLEC, LLC - CO LONGMONT VoIP 656 active
720-928 BANDWIDTH.COM CLEC, LLC - CO FORTLUPTON VoIP 656 active
720-929 QWEST CORPORATION DENVER Landline 656 active
720-930 RCLEC, INC. DENVER VoIP 656 active
720-931 QWEST CORPORATION DENVER Landline 656 active
720-932 QWEST CORPORATION DENVER Landline 656 active
720-933 T-MOBILE USA, INC. DENVER Wireless 656 active
720-934 T-MOBILE USA, INC. DENVER Wireless 656 active
720-935 T-MOBILE USA, INC. DENVER Wireless 656 active
720-936 T-MOBILE USA, INC. DENVER Wireless 656 active
720-937 T-MOBILE USA, INC. DENVER Wireless 656 active
720-938 T-MOBILE USA, INC. DENVER Wireless 656 active
720-939 T-MOBILE USA, INC. DENVER Wireless 656 active
720-940 T-MOBILE USA, INC. DENVER Wireless 656 active
720-941 QWEST CORPORATION DENVER Landline 656 active
720-942 QWEST CORPORATION DENVER Landline 656 active
720-943 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-944 QWEST CORPORATION DENVER Landline 656 active
720-945 QWEST CORPORATION DENVER Landline 656 active
720-946 QWEST CORPORATION DENVER Landline 656 active
720-947 QWEST CORPORATION DENVER Landline 656 active
720-948 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-949 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-951 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-952 VONAGE AMERICA LLC DECKERS VoIP 656 active
720-953 T-MOBILE USA, INC. DENVER Wireless 656 active
720-954 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO FORTLUPTON Wireless 656 active
720-955 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO DENVER Wireless 656 active
720-956 QWEST CORPORATION DENVER Landline 656 active
720-957 T-MOBILE USA, INC. DENVER Wireless 656 active
720-960 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-961 LEVEL 3 COMMUNICATIONS, LLC - CO DENVER Landline 656 active
720-962 QWEST CORPORATION DENVER Landline 656 active
720-963 QWEST CORPORATION DENVER Landline 656 active
720-964 T-MOBILE USA, INC. LONGMONT Wireless 656 active
720-965 T-MOBILE USA, INC. DENVER Wireless 656 active
720-966 NEW CINGULAR WIRELESS PCS, LLC FORTLUPTON Wireless 656 active
720-967 LEAP TELECOM, LLC DENVER VoIP 656 active
720-968 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-969 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-970 BANDWIDTH.COM CLEC, LLC - CO LONGMONT VoIP 656 active
720-971 T-MOBILE USA, INC. DENVER Wireless 656 active
720-972 QWEST CORPORATION DENVER Landline 656 active
720-973 HADLO TECHNOLOGIES, LLC DENVER VoIP 656 active
720-974 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-975 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM DENVER Landline 656 active
720-977 QWEST CORPORATION DENVER Landline 656 active
720-978 NUSO, LLC DENVER VoIP 656 active
720-979 T-MOBILE USA, INC. DENVER Wireless 656 active
720-980 T-MOBILE USA, INC. DENVER Wireless 656 active
720-981 QWEST CORPORATION DENVER Landline 656 active
720-982 T-MOBILE USA, INC. DENVER Wireless 656 active
720-983 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-984 T-MOBILE USA, INC. DENVER Wireless 656 active
720-985 T-MOBILE USA, INC. DENVER Wireless 656 active
720-986 BANDWIDTH.COM CLEC, LLC - CO LONGMONT VoIP 656 active
720-987 T-MOBILE USA, INC. DENVER Wireless 656 active
720-988 T-MOBILE USA, INC. DENVER Wireless 656 active
720-989 T-MOBILE USA, INC. DENVER Wireless 656 active
720-990 LEVEL 3 TELECOM OF COLORADO, LLC - CO DENVER Landline 656 active
720-991 COMMIO, LLC DECKERS VoIP 656 active
720-992 TELEPORT COMMUNICATIONS AMERICA, LLC - CO DENVER VoIP 656 active
720-993 NEW CINGULAR WIRELESS PCS, LLC DENVER Wireless 656 active
720-994 T-MOBILE USA, INC. DENVER Wireless 656 active
720-995 EON TELECOM, INC. DENVER VoIP 656 active
720-996 COMMIO, LLC DENVER VoIP 656 active
720-997 COMCAST IP PHONE, LLC BENNETT VoIP 656 active
720-998 COMCAST IP PHONE, LLC DENVER VoIP 656 active
720-999 T-MOBILE USA, INC. DENVER Wireless 656 active

Area code 720 shares its geographic region with the following overlay area codes:

303 983