Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
DENVER prefixes in area code 720
NANPA records 678 assigned NXX blocks to rate center DENVER in area code 720, 86.4% of the 785 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 45 holders hold those blocks, the largest being T-MOBILE USA, INC. (125), QWEST CORPORATION (98), NEW CINGULAR WIRELESS PCS, LLC (85). The earliest assignment on record here is 2001-01-12 and the most recent 2024-09-03. 548 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 223, 303, 319, 660 – overlay codes cover the same geography, so a rate center is served by all of them.
678 assigned blocks – 86.4% of 720
45 holders of record
548 of them pooled in 1,000-number lots
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 720-200 | Lumen QWEST CORPORATION | – | no | yes |
| 720-201 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-202 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2009-10-07 | yes | yes |
| 720-203 | T-Mobile T-MOBILE USA, INC. | 2001-01-29 | yes | yes |
| 720-205 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-206 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-207 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-208 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-209 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-210 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-212 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-213 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 720-214 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 720-215 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2009-10-12 | yes | yes |
| 720-216 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2001-01-29 | yes | yes |
| 720-217 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-218 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-219 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-220 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-221 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-222 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-223 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-224 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-225 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-226 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-227 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-228 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-229 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-230 | XO COLORADO, LLC | – | yes | yes |
| 720-231 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-232 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-233 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-234 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-235 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-236 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-237 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-09-28 | yes | yes |
| 720-238 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-239 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-240 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-241 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-242 | Lumen QWEST CORPORATION | 2008-10-09 | yes | yes |
| 720-243 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-06-30 | yes | yes |
| 720-244 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-245 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2011-11-21 | yes | yes |
| 720-246 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-247 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2004-05-20 | yes | yes |
| 720-248 | Onvoy ONVOY, LLC - CO | – | yes | yes |
| 720-249 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-250 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-251 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-252 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-253 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-254 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-255 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-256 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-257 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-258 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-259 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-260 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-261 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-262 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-263 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-264 | Lumen QWEST CORPORATION | – | no | yes |
| 720-265 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2004-05-03 | yes | yes |
| 720-266 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-267 | Lumen QWEST CORPORATION | – | no | yes |
| 720-268 | Lumen QWEST CORPORATION | – | no | yes |
| 720-269 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-270 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-271 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-272 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-01-18 | no | yes |
| 720-273 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-01-18 | no | yes |
| 720-274 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 720-275 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-02-22 | no | yes |
| 720-276 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-02-22 | no | yes |
| 720-277 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-278 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2001-01-25 | yes | yes |
| 720-279 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2001-01-25 | yes | yes |
| 720-280 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-281 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-282 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2001-01-25 | yes | yes |
| 720-283 | Lumen QWEST CORPORATION | – | no | yes |
| 720-284 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-285 | XO COLORADO, LLC | 2009-01-30 | yes | yes |
| 720-286 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2002-04-30 | yes | yes |
| 720-287 | Comcast COMCAST IP PHONE, LLC | 2010-04-30 | yes | yes |
| 720-288 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-02-26 | yes | yes |
| 720-289 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-07-25 | no | yes |
| 720-290 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-291 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-292 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-03-04 | yes | yes |
| 720-293 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-294 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-295 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-03-01 | yes | yes |
| 720-296 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-01-12 | no | yes |
| 720-297 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-01-12 | no | yes |
| 720-298 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-01-12 | no | yes |
| 720-299 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-300 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-301 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-302 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-303 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2024-02-13 | yes | yes |
| 720-304 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-305 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2001-01-29 | yes | yes |
| 720-306 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2001-01-29 | yes | yes |
| 720-308 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-08-14 | no | yes |
| 720-309 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-12-05 | no | yes |
| 720-312 | T-Mobile T-MOBILE USA, INC. | 2001-02-20 | yes | yes |
| 720-313 | T-Mobile T-MOBILE USA, INC. | 2001-02-20 | yes | yes |
| 720-314 | T-Mobile T-MOBILE USA, INC. | 2001-02-20 | yes | yes |
| 720-315 | Onvoy ONVOY, LLC - CO | 2009-10-14 | yes | yes |
| 720-316 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-05-24 | yes | yes |
| 720-317 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-318 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-319 | T-Mobile T-MOBILE USA, INC. | 2001-04-19 | yes | yes |
| 720-320 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-321 | Lumen QWEST CORPORATION | 2008-05-29 | yes | yes |
| 720-322 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-323 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-324 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 720-325 | T-Mobile T-MOBILE USA, INC. | 2010-08-06 | yes | yes |
| 720-326 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-06-13 | yes | yes |
| 720-327 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-10-18 | no | yes |
| 720-328 | Comcast COMCAST IP PHONE, LLC | 2009-10-20 | yes | yes |
| 720-329 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-10-18 | no | yes |
| 720-330 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-331 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-332 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-333 | T-Mobile T-MOBILE USA, INC. | 2001-05-14 | yes | yes |
| 720-334 | T-Mobile T-MOBILE USA, INC. | 2001-05-14 | yes | yes |
| 720-335 | T-Mobile T-MOBILE USA, INC. | 2001-05-14 | yes | yes |
| 720-337 | Lumen QWEST CORPORATION | 2009-02-18 | yes | yes |
| 720-338 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-11-19 | no | yes |
| 720-339 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-341 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-342 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2009-04-15 | yes | yes |
| 720-343 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2003-10-31 | yes | yes |
| 720-344 | Lumen QWEST CORPORATION | – | no | yes |
| 720-345 | ZIPPYTECH INCORPORATED | 2007-12-28 | yes | yes |
| 720-346 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-347 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2009-09-28 | yes | yes |
| 720-348 | Lumen QWEST CORPORATION | – | no | yes |
| 720-349 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2011-03-28 | yes | yes |
| 720-350 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-351 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-352 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-353 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-354 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2011-06-30 | yes | yes |
| 720-355 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2012-08-16 | yes | yes |
| 720-356 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-357 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2012-07-05 | yes | yes |
| 720-359 | Lumen QWEST CORPORATION | – | no | yes |
| 720-360 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2013-01-28 | yes | yes |
| 720-361 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2013-07-03 | yes | yes |
| 720-362 | Lumen QWEST CORPORATION | 2007-06-06 | yes | yes |
| 720-363 | T-Mobile METROPCS, INC. | – | yes | yes |
| 720-364 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-01-15 | no | yes |
| 720-365 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-01-15 | no | yes |
| 720-366 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-01-15 | no | yes |
| 720-367 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-368 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2004-04-30 | yes | yes |
| 720-369 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-03-14 | yes | yes |
| 720-370 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2013-01-04 | yes | yes |
| 720-371 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-372 | T-Mobile T-MOBILE USA, INC. | 2013-09-09 | yes | yes |
| 720-373 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-374 | Lumen QWEST CORPORATION | – | no | yes |
| 720-375 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2007-07-10 | yes | yes |
| 720-376 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2012-11-12 | yes | yes |
| 720-377 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-379 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-380 | T-Mobile T-MOBILE USA, INC. | 2013-02-01 | yes | yes |
| 720-381 | Comcast COMCAST IP PHONE, LLC | 2005-08-03 | yes | yes |
| 720-382 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 720-384 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-385 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-387 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2012-09-04 | yes | yes |
| 720-388 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2010-01-11 | yes | yes |
| 720-389 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2008-11-17 | yes | yes |
| 720-390 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-391 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2013-07-12 | yes | yes |
| 720-393 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2010-06-07 | yes | yes |
| 720-394 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-395 | AT&T AT&T - LOCAL | 2009-09-04 | yes | yes |
| 720-396 | AT&T AT&T - LOCAL | 2009-09-08 | yes | yes |
| 720-397 | AT&T AT&T - LOCAL | 2009-09-08 | yes | yes |
| 720-398 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-06-28 | yes | yes |
| 720-399 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2011-05-06 | yes | yes |
| 720-400 | T-Mobile T-MOBILE USA, INC. | 2010-10-28 | yes | yes |
| 720-401 | T-Mobile T-MOBILE USA, INC. | 2009-01-13 | yes | yes |
| 720-402 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2011-05-10 | yes | yes |
| 720-403 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2013-07-25 | yes | yes |
| 720-404 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-10-18 | no | yes |
| 720-405 | INTRADO COMMUNICATIONS, LLC | 2013-08-30 | yes | yes |
| 720-406 | Lumen QWEST CORPORATION | – | no | yes |
| 720-407 | Onvoy ONVOY, LLC - CO | – | yes | yes |
| 720-408 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2012-11-15 | yes | yes |
| 720-409 | Windstream PAETEC ITEL, LLC | 2011-11-22 | yes | yes |
| 720-410 | Comcast COMCAST IP PHONE, LLC | 2014-06-27 | yes | yes |
| 720-412 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-06-28 | yes | yes |
| 720-413 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2008-08-27 | yes | yes |
| 720-415 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2013-06-12 | yes | yes |
| 720-416 | T-Mobile METROPCS, INC. | 2014-06-30 | yes | yes |
| 720-417 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2014-08-18 | yes | yes |
| 720-418 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2014-03-12 | yes | yes |
| 720-419 | T-Mobile T-MOBILE USA, INC. | 2016-03-16 | yes | yes |
| 720-420 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2010-05-26 | yes | yes |
| 720-421 | T-Mobile T-MOBILE USA, INC. | 2009-03-20 | yes | yes |
| 720-422 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-09-26 | no | yes |
| 720-423 | Lumen QWEST CORPORATION | 2004-04-22 | yes | yes |
| 720-424 | Lumen QWEST CORPORATION | 2004-04-22 | yes | yes |
| 720-425 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2008-01-15 | yes | yes |
| 720-426 | Lumen QWEST CORPORATION | 2010-04-20 | yes | yes |
| 720-427 | T-Mobile T-MOBILE USA, INC. | 2002-02-04 | no | yes |
| 720-428 | Onvoy ONVOY, LLC - CO | 2011-12-12 | yes | yes |
| 720-429 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2008-07-02 | yes | yes |
| 720-430 | AT&T AT&T - LOCAL | 2012-06-28 | yes | yes |
| 720-431 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-09-22 | yes | yes |
| 720-432 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-02-26 | yes | yes |
| 720-433 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-434 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-435 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-436 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-437 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2011-02-08 | yes | yes |
| 720-439 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-04-21 | yes | yes |
| 720-440 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-05-12 | yes | yes |
| 720-441 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2011-05-18 | yes | yes |
| 720-443 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-10-07 | yes | yes |
| 720-444 | Lumen QWEST CORPORATION | – | no | yes |
| 720-445 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2010-09-15 | yes | yes |
| 720-446 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2011-02-23 | yes | yes |
| 720-447 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2008-02-22 | yes | yes |
| 720-448 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2008-04-09 | yes | yes |
| 720-449 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-450 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2014-01-08 | yes | yes |
| 720-451 | T-Mobile T-MOBILE USA, INC. | 2013-10-25 | yes | yes |
| 720-452 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2010-12-28 | yes | yes |
| 720-454 | Windstream PAETEC ITEL, LLC | 2010-08-11 | yes | yes |
| 720-455 | Lumen QWEST CORPORATION | 2010-07-02 | yes | yes |
| 720-456 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2013-07-23 | yes | yes |
| 720-457 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-458 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2010-09-27 | yes | yes |
| 720-459 | Onvoy ONVOY, LLC - CO | 2010-10-15 | yes | yes |
| 720-460 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2013-11-13 | yes | yes |
| 720-461 | T-Mobile METROPCS, INC. | 2015-12-22 | yes | yes |
| 720-462 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2016-11-23 | yes | yes |
| 720-464 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2011-04-21 | yes | yes |
| 720-465 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2012-01-03 | yes | yes |
| 720-467 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-01-10 | yes | yes |
| 720-468 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2001-12-17 | yes | yes |
| 720-469 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-09-23 | yes | yes |
| 720-470 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-471 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-06-12 | yes | yes |
| 720-472 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-473 | Onvoy ONVOY, LLC - CO | – | yes | yes |
| 720-474 | T-Mobile T-MOBILE USA, INC. | 2011-10-31 | yes | yes |
| 720-475 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-476 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-05-19 | yes | yes |
| 720-477 | Onvoy ONVOY, LLC - CO | 2011-08-09 | yes | yes |
| 720-478 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2013-05-08 | yes | yes |
| 720-479 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-480 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-481 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-08-15 | yes | yes |
| 720-482 | Lumen QWEST CORPORATION | – | no | yes |
| 720-483 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-08-04 | yes | yes |
| 720-484 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2011-07-18 | yes | yes |
| 720-485 | Comcast COMCAST IP PHONE, LLC | 2014-05-08 | yes | yes |
| 720-486 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-08-18 | yes | yes |
| 720-488 | Lumen QWEST CORPORATION | – | no | yes |
| 720-489 | Lumen QWEST CORPORATION | – | no | yes |
| 720-490 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-492 | T-Mobile T-MOBILE USA, INC. | 2014-08-25 | yes | yes |
| 720-493 | Lumen QWEST CORPORATION | – | no | yes |
| 720-495 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-09-28 | no | yes |
| 720-496 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2001-12-17 | yes | yes |
| 720-497 | Lumen QWEST CORPORATION | – | no | yes |
| 720-498 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2012-09-10 | yes | yes |
| 720-499 | T-Mobile T-MOBILE USA, INC. | 2011-08-09 | yes | yes |
| 720-500 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2014-10-07 | yes | yes |
| 720-501 | T-Mobile METROPCS, INC. | 2014-08-28 | yes | yes |
| 720-502 | Comcast COMCAST IP PHONE, LLC | 2012-11-15 | yes | yes |
| 720-503 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-10-02 | yes | yes |
| 720-504 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2013-05-24 | yes | yes |
| 720-505 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2011-01-11 | yes | yes |
| 720-506 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2001-12-17 | yes | yes |
| 720-507 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2014-10-30 | yes | yes |
| 720-508 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2012-06-26 | yes | yes |
| 720-509 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2010-04-02 | yes | yes |
| 720-510 | Comcast COMCAST IP PHONE, LLC | 2017-06-13 | yes | yes |
| 720-512 | Comcast COMCAST IP PHONE, LLC | 2016-05-09 | yes | yes |
| 720-513 | Onvoy ONVOY, LLC - CO | 2017-08-25 | yes | yes |
| 720-514 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-515 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-02-11 | yes | yes |
| 720-516 | Lumen QWEST CORPORATION | 2017-07-21 | yes | yes |
| 720-517 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-06-30 | yes | yes |
| 720-518 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2014-05-16 | yes | yes |
| 720-519 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-520 | Charter ONVOY SPECTRUM, LLC | 2016-05-13 | yes | yes |
| 720-521 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 720-522 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2010-11-19 | yes | yes |
| 720-523 | Lumen QWEST CORPORATION | 2010-05-24 | yes | yes |
| 720-524 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-525 | T-Mobile T-MOBILE USA, INC. | 2013-04-02 | yes | yes |
| 720-527 | TELIAX, INC. - CO | 2017-10-27 | yes | yes |
| 720-528 | Lumen QWEST CORPORATION | – | no | yes |
| 720-529 | Lumen QWEST CORPORATION | – | no | yes |
| 720-530 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-531 | Comcast COMCAST IP PHONE, LLC | 2016-08-16 | yes | yes |
| 720-532 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-533 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | no | yes |
| 720-535 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-536 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-537 | FASTTRACK COMMUNICATIONS, INC. - CO | 2014-10-22 | yes | yes |
| 720-539 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-07-08 | yes | yes |
| 720-540 | Lumen QWEST CORPORATION | – | no | yes |
| 720-541 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2012-09-28 | yes | yes |
| 720-542 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-543 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2016-10-14 | yes | yes |
| 720-544 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-545 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2009-06-12 | yes | yes |
| 720-546 | T-Mobile T-MOBILE USA, INC. | 2016-08-23 | yes | yes |
| 720-548 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-549 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-550 | Windstream PAETEC ITEL, LLC | 2013-06-25 | yes | yes |
| 720-551 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-04-01 | yes | yes |
| 720-553 | Lumen QWEST CORPORATION | 2012-06-22 | yes | yes |
| 720-554 | Lumen QWEST CORPORATION | – | no | yes |
| 720-556 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2011-05-10 | yes | yes |
| 720-557 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2013-06-12 | yes | yes |
| 720-558 | Lumen QWEST CORPORATION | 2002-03-13 | no | yes |
| 720-559 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | no | yes |
| 720-560 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-561 | Lumen QWEST CORPORATION | 2008-04-18 | yes | yes |
| 720-562 | Lumen QWEST CORPORATION | – | no | yes |
| 720-563 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-564 | Lumen QWEST CORPORATION | – | no | yes |
| 720-565 | Lumen QWEST CORPORATION | – | no | yes |
| 720-566 | Lumen QWEST CORPORATION | – | no | yes |
| 720-567 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | no | yes |
| 720-568 | Lumen QWEST CORPORATION | 2001-02-27 | yes | yes |
| 720-569 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2008-10-08 | yes | yes |
| 720-570 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-572 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2016-12-14 | yes | yes |
| 720-573 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2014-10-17 | yes | yes |
| 720-574 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2018-06-29 | yes | yes |
| 720-575 | Onvoy ONVOY, LLC - CO | 2014-11-11 | yes | yes |
| 720-576 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2016-11-09 | yes | yes |
| 720-577 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2014-07-03 | yes | yes |
| 720-578 | Lumen QWEST CORPORATION | – | no | yes |
| 720-579 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-581 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-582 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2015-11-12 | yes | yes |
| 720-583 | Onvoy ONVOY, LLC - CO | 2010-09-30 | yes | yes |
| 720-584 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-10-21 | yes | yes |
| 720-585 | T-Mobile T-MOBILE USA, INC. | 2012-11-02 | yes | yes |
| 720-586 | T-Mobile METROPCS, INC. | 2017-05-25 | yes | yes |
| 720-587 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-588 | NUSO, LLC | 2012-10-17 | yes | yes |
| 720-589 | T-Mobile T-MOBILE USA, INC. | 2013-04-30 | yes | yes |
| 720-590 | Onvoy ONVOY, LLC - CO | 2013-02-05 | yes | yes |
| 720-591 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2016-09-15 | yes | yes |
| 720-592 | T-Mobile T-MOBILE USA, INC. | 2016-12-08 | yes | yes |
| 720-593 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2014-04-02 | yes | yes |
| 720-594 | Onvoy ONVOY, LLC - CO | 2017-06-30 | yes | yes |
| 720-595 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2016-05-10 | yes | yes |
| 720-596 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-598 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2015-02-26 | yes | yes |
| 720-599 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2012-02-13 | yes | yes |
| 720-601 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-12-21 | yes | yes |
| 720-602 | T-Mobile T-MOBILE USA, INC. | 2017-07-31 | yes | yes |
| 720-603 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2017-09-01 | yes | yes |
| 720-604 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2022-12-16 | yes | yes |
| 720-605 | Onvoy ONVOY, LLC - CO | 2015-11-17 | yes | yes |
| 720-607 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-03-16 | yes | yes |
| 720-609 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-06-03 | yes | yes |
| 720-610 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2018-07-30 | yes | yes |
| 720-612 | T-Mobile T-MOBILE USA, INC. | 2011-07-22 | yes | yes |
| 720-614 | AIRESPRING, INC. | 2018-10-04 | yes | yes |
| 720-616 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2014-08-29 | yes | yes |
| 720-617 | Windstream PAETEC ITEL, LLC | 2019-04-18 | yes | yes |
| 720-618 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-07-10 | yes | yes |
| 720-620 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-03-27 | no | yes |
| 720-621 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-03-27 | no | yes |
| 720-622 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-623 | Onvoy ONVOY, LLC - CO | 2012-02-17 | yes | yes |
| 720-624 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-625 | Windstream PAETEC ITEL, LLC | 2011-09-20 | yes | yes |
| 720-626 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2011-01-11 | yes | yes |
| 720-627 | Lumen QWEST CORPORATION | 2012-03-06 | yes | yes |
| 720-628 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-03-04 | no | yes |
| 720-629 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-03-04 | no | yes |
| 720-630 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2013-10-23 | yes | yes |
| 720-631 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2017-04-03 | yes | yes |
| 720-632 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2018-01-11 | yes | yes |
| 720-633 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-12-28 | yes | yes |
| 720-634 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2012-11-16 | yes | yes |
| 720-635 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 720-636 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2013-11-13 | yes | yes |
| 720-637 | Onvoy ONVOY, LLC - CO | 2021-10-21 | yes | yes |
| 720-638 | Comcast COMCAST IP PHONE, LLC | 2013-01-17 | yes | yes |
| 720-639 | Onvoy ONVOY, LLC - CO | 2014-05-14 | yes | yes |
| 720-641 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-642 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2015-10-22 | yes | yes |
| 720-643 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2015-08-24 | yes | yes |
| 720-644 | Windstream PAETEC ITEL, LLC | 2011-04-01 | yes | yes |
| 720-645 | T-Mobile T-MOBILE USA, INC. | 2014-03-05 | yes | yes |
| 720-646 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-10-07 | yes | yes |
| 720-647 | Onvoy ONVOY, LLC - CO | 2019-05-20 | yes | yes |
| 720-648 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2011-05-10 | yes | yes |
| 720-650 | Onvoy ONVOY, LLC - CO | 2017-08-17 | yes | yes |
| 720-651 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2015-10-15 | yes | yes |
| 720-653 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2019-06-03 | yes | yes |
| 720-654 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-01-10 | yes | yes |
| 720-655 | T-Mobile T-MOBILE USA, INC. | 2021-08-30 | yes | yes |
| 720-656 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-10-07 | yes | yes |
| 720-657 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2019-02-25 | yes | yes |
| 720-658 | TELSTAR COMMUNICATIONS INC | 2010-03-26 | no | yes |
| 720-659 | Vonage VONAGE AMERICA LLC | 2022-07-15 | yes | yes |
| 720-660 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-04-08 | yes | yes |
| 720-661 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2018-12-24 | yes | yes |
| 720-662 | T-Mobile T-MOBILE USA, INC. | 2014-09-30 | yes | yes |
| 720-663 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2008-05-28 | yes | yes |
| 720-665 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-08-30 | yes | yes |
| 720-666 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2012-05-23 | yes | yes |
| 720-667 | Comcast COMCAST IP PHONE, LLC | 2017-11-21 | yes | yes |
| 720-668 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-10-16 | yes | yes |
| 720-670 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-671 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2019-04-25 | yes | yes |
| 720-672 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2019-09-30 | yes | yes |
| 720-673 | EXIANT COMMUNICATIONS LLC | 2019-08-23 | yes | yes |
| 720-674 | Comcast COMCAST IP PHONE, LLC | 2020-02-20 | yes | yes |
| 720-675 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-05-12 | yes | yes |
| 720-676 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2016-08-29 | yes | yes |
| 720-677 | Onvoy ONVOY, LLC - CO | 2019-06-20 | yes | yes |
| 720-678 | CSC WIRELESS, LLC | 2019-10-09 | yes | yes |
| 720-681 | T-Mobile T-MOBILE USA, INC. | 2019-04-09 | yes | yes |
| 720-682 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2018-10-22 | yes | yes |
| 720-685 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-686 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2010-10-14 | yes | yes |
| 720-687 | T-Mobile T-MOBILE USA, INC. | 2019-11-19 | yes | yes |
| 720-688 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-07-15 | yes | yes |
| 720-689 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2011-04-04 | yes | yes |
| 720-690 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-03-27 | no | yes |
| 720-691 | T-Mobile T-MOBILE USA, INC. | 2019-06-25 | yes | yes |
| 720-692 | T-Mobile METROPCS, INC. | 2015-05-27 | yes | yes |
| 720-693 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-01-11 | yes | yes |
| 720-694 | T-Mobile T-MOBILE USA, INC. | 2020-03-24 | yes | yes |
| 720-695 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2014-08-12 | yes | yes |
| 720-696 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2015-06-01 | yes | yes |
| 720-697 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2015-11-09 | yes | yes |
| 720-699 | Onvoy ONVOY, LLC - CO | 2014-11-11 | yes | yes |
| 720-701 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2019-04-16 | yes | yes |
| 720-703 | NUSO, LLC | 2020-06-19 | yes | yes |
| 720-704 | T-Mobile T-MOBILE USA, INC. | 2020-03-31 | yes | yes |
| 720-705 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-10-02 | yes | yes |
| 720-706 | Onvoy ONVOY, LLC - CO | 2020-07-13 | yes | yes |
| 720-707 | Onvoy ONVOY, LLC - CO | 2014-11-21 | yes | yes |
| 720-708 | TELIAX, INC. - CO | 2011-08-12 | yes | yes |
| 720-709 | Windstream PAETEC ITEL, LLC | 2014-08-21 | yes | yes |
| 720-710 | Onvoy ONVOY, LLC - CO | 2016-09-07 | yes | yes |
| 720-716 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2020-03-25 | yes | yes |
| 720-717 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-03-03 | yes | yes |
| 720-719 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2024-04-03 | yes | yes |
| 720-720 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2024-09-03 | yes | yes |
| 720-721 | THE VOICE APPLICATION NETWORK, LLC | – | yes | yes |
| 720-722 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2010-05-21 | yes | yes |
| 720-723 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2013-02-04 | yes | yes |
| 720-724 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2013-04-02 | yes | yes |
| 720-725 | T-Mobile T-MOBILE USA, INC. | 2015-06-10 | yes | yes |
| 720-726 | Comcast COMCAST IP PHONE, LLC | 2013-10-29 | yes | yes |
| 720-728 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2015-12-16 | yes | yes |
| 720-730 | Onvoy ONVOY, LLC - CO | 2018-09-20 | yes | yes |
| 720-732 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-733 | Lumen QWEST CORPORATION | – | no | yes |
| 720-734 | Onvoy ONVOY, LLC - CO | 2020-05-11 | yes | yes |
| 720-736 | Onvoy ONVOY, LLC - CO | 2021-01-21 | yes | yes |
| 720-737 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2012-12-13 | yes | yes |
| 720-738 | Onvoy ONVOY, LLC - CO | 2019-04-29 | yes | yes |
| 720-739 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2014-04-29 | yes | yes |
| 720-742 | T-Mobile T-MOBILE USA, INC. | 2020-09-11 | yes | yes |
| 720-744 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-746 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-747 | Lumen QWEST CORPORATION | – | no | yes |
| 720-748 | Lumen QWEST CORPORATION | – | no | yes |
| 720-749 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2015-09-25 | yes | yes |
| 720-750 | T-Mobile T-MOBILE USA, INC. | 2019-01-28 | yes | yes |
| 720-751 | T-Mobile T-MOBILE USA, INC. | 2020-01-09 | yes | yes |
| 720-752 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2020-08-17 | yes | yes |
| 720-754 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2010-03-30 | yes | yes |
| 720-755 | T-Mobile T-MOBILE USA, INC. | 2015-09-01 | yes | yes |
| 720-756 | T-Mobile T-MOBILE USA, INC. | 2020-11-24 | yes | yes |
| 720-757 | T-Mobile T-MOBILE USA, INC. | 2014-09-30 | yes | yes |
| 720-758 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2016-12-20 | yes | yes |
| 720-760 | Twilio TWILIO INTERNATIONAL, INC. | 2020-10-15 | yes | yes |
| 720-761 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-762 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2019-07-18 | yes | yes |
| 720-763 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-11-05 | yes | yes |
| 720-765 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-09-29 | yes | yes |
| 720-766 | FRACTEL, LLC | 2019-01-25 | yes | yes |
| 720-767 | T-Mobile T-MOBILE USA, INC. | 2014-07-14 | yes | yes |
| 720-768 | COMMIO, LLC | 2017-11-14 | yes | yes |
| 720-769 | Vonage VONAGE AMERICA LLC | 2020-09-03 | yes | yes |
| 720-771 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-772 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2014-10-15 | yes | yes |
| 720-773 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2015-02-09 | yes | yes |
| 720-774 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-06-04 | yes | yes |
| 720-775 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-10-14 | yes | yes |
| 720-777 | Lumen QWEST CORPORATION | 2006-02-09 | yes | yes |
| 720-778 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2014-09-30 | yes | yes |
| 720-779 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2019-06-12 | yes | yes |
| 720-780 | Onvoy ONVOY, LLC - CO | 2019-12-16 | yes | yes |
| 720-783 | Onvoy ONVOY, LLC - CO | 2022-11-16 | yes | yes |
| 720-785 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-786 | T-Mobile T-MOBILE USA, INC. | 2022-08-12 | yes | yes |
| 720-787 | T-Mobile METROPCS, INC. | 2016-08-23 | yes | yes |
| 720-788 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-01-06 | yes | yes |
| 720-789 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2011-08-05 | yes | yes |
| 720-792 | Onvoy ONVOY, LLC - CO | 2020-11-09 | yes | yes |
| 720-793 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2018-11-13 | yes | yes |
| 720-795 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2017-06-21 | yes | yes |
| 720-798 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2020-04-21 | yes | yes |
| 720-799 | Onvoy ONVOY, LLC - CO | 2015-03-13 | yes | yes |
| 720-800 | Onvoy ONVOY, LLC - CO | 2012-11-08 | yes | yes |
| 720-803 | T-Mobile T-MOBILE USA, INC. | 2021-01-14 | yes | yes |
| 720-805 | VoIP Innovations VOIP INNOVATIONS, LLC | 2018-08-15 | yes | yes |
| 720-807 | Onvoy ONVOY, LLC - CO | 2020-08-27 | yes | yes |
| 720-808 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2010-10-20 | yes | yes |
| 720-809 | T-Mobile METROPCS, INC. | 2014-08-22 | yes | yes |
| 720-810 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-812 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2020-03-24 | yes | yes |
| 720-813 | IP HORIZON LLC | 2021-03-05 | yes | yes |
| 720-819 | T-Mobile T-MOBILE USA, INC. | 2018-03-09 | yes | yes |
| 720-820 | WIDE VOICE, LLC - CO | 2015-09-28 | yes | yes |
| 720-822 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2014-05-12 | yes | yes |
| 720-823 | Onvoy ONVOY, LLC - CO | 2021-01-08 | yes | yes |
| 720-825 | HD CARRIER LLC | – | yes | yes |
| 720-826 | Comcast COMCAST IP PHONE, LLC | 2019-07-30 | yes | yes |
| 720-827 | T-Mobile T-MOBILE USA, INC. | 2018-03-22 | yes | yes |
| 720-828 | T-Mobile T-MOBILE USA, INC. | 2018-11-12 | yes | yes |
| 720-829 | T-Mobile METROPCS, INC. | 2014-07-29 | yes | yes |
| 720-830 | HD CARRIER LLC | 2018-12-03 | yes | yes |
| 720-831 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2021-10-25 | yes | yes |
| 720-833 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-834 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | no | yes |
| 720-835 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2015-09-25 | yes | yes |
| 720-836 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-837 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-838 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-839 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-840 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-841 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-842 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-843 | Charter ONVOY SPECTRUM, LLC | 2021-10-21 | yes | yes |
| 720-844 | LEAP TELECOM, LLC | 2021-01-25 | yes | yes |
| 720-845 | T-Mobile T-MOBILE USA, INC. | 2017-08-30 | yes | yes |
| 720-847 | Lumen QWEST CORPORATION | 2003-11-05 | yes | yes |
| 720-848 | Lumen QWEST CORPORATION | – | no | yes |
| 720-849 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-850 | FIVE9, INC. | 2021-05-27 | yes | yes |
| 720-851 | Lumen QWEST CORPORATION | – | no | yes |
| 720-852 | Lumen QWEST CORPORATION | – | no | yes |
| 720-854 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-855 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-857 | Lumen QWEST CORPORATION | – | no | yes |
| 720-858 | Lumen QWEST CORPORATION | – | no | yes |
| 720-859 | Lumen QWEST CORPORATION | – | no | yes |
| 720-860 | Charter ONVOY SPECTRUM, LLC | 2022-08-12 | yes | yes |
| 720-862 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-863 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 720-865 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | no | yes |
| 720-866 | TERRA NOVA TELECOM INC. | 2019-02-22 | yes | yes |
| 720-869 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2021-10-25 | yes | yes |
| 720-870 | Lumen QWEST CORPORATION | – | no | yes |
| 720-872 | Lumen QWEST CORPORATION | – | no | yes |
| 720-873 | Lumen QWEST CORPORATION | – | no | yes |
| 720-874 | Lumen QWEST CORPORATION | – | no | yes |
| 720-875 | Lumen QWEST CORPORATION | – | no | yes |
| 720-876 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-877 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-878 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 720-879 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-880 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-881 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | – | yes | yes |
| 720-882 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 720-883 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-884 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-885 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-02-04 | yes | yes |
| 720-886 | Lumen QWEST CORPORATION | – | no | yes |
| 720-887 | Lumen QWEST CORPORATION | – | no | yes |
| 720-888 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | no | yes |
| 720-889 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 720-890 | Lumen QWEST CORPORATION | – | no | yes |
| 720-891 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | 2001-12-17 | yes | yes |
| 720-892 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | 2018-03-20 | yes | yes |
| 720-895 | Lumen QWEST CORPORATION | – | no | yes |
| 720-896 | T-Mobile T-MOBILE USA, INC. | 2021-11-12 | yes | yes |
| 720-897 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-898 | Lumen QWEST CORPORATION | – | no | yes |
| 720-900 | Peerless PEERLESS NETWORK OF COLORADO, LLC - CO | 2014-10-07 | yes | yes |
| 720-901 | Telnyx TELNYX LLC | 2021-11-17 | yes | yes |
| 720-902 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2019-05-01 | yes | yes |
| 720-903 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-904 | Lumen QWEST CORPORATION | – | no | yes |
| 720-905 | FIVE9, INC. | 2022-01-26 | yes | yes |
| 720-907 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-908 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2017-05-15 | yes | yes |
| 720-909 | Bandwidth BANDWIDTH.COM CLEC, LLC - CO | – | yes | yes |
| 720-910 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2022-03-25 | yes | yes |
| 720-912 | Onvoy ONVOY, LLC - CO | 2020-10-05 | yes | yes |
| 720-913 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | no | yes |
| 720-916 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2022-07-06 | yes | yes |
| 720-917 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-919 | T-Mobile T-MOBILE USA, INC. | 2016-08-23 | yes | yes |
| 720-920 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-921 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-922 | Lumen QWEST CORPORATION | – | no | yes |
| 720-923 | ADVANCED TELECOM SOLUTIONS, LLC | 2018-08-22 | yes | yes |
| 720-925 | Comcast COMCAST IP PHONE, LLC | 2015-12-18 | yes | yes |
| 720-926 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2018-06-14 | yes | yes |
| 720-929 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-930 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2015-08-27 | yes | yes |
| 720-931 | Lumen QWEST CORPORATION | – | no | yes |
| 720-932 | Lumen QWEST CORPORATION | – | no | yes |
| 720-933 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-934 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-935 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-936 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-937 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-938 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-939 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 720-940 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-941 | Lumen QWEST CORPORATION | – | no | yes |
| 720-942 | Lumen QWEST CORPORATION | – | no | yes |
| 720-943 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-944 | Lumen QWEST CORPORATION | – | no | yes |
| 720-945 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-946 | Lumen QWEST CORPORATION | – | no | yes |
| 720-947 | Lumen QWEST CORPORATION | – | yes | yes |
| 720-948 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2022-06-22 | yes | yes |
| 720-949 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | – | yes | yes |
| 720-951 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | – | yes | yes |
| 720-953 | T-Mobile T-MOBILE USA, INC. | 2022-07-21 | yes | yes |
| 720-955 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 2015-07-09 | yes | yes |
| 720-956 | Lumen QWEST CORPORATION | – | no | yes |
| 720-957 | T-Mobile T-MOBILE USA, INC. | 2022-01-27 | yes | yes |
| 720-960 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-08-17 | yes | yes |
| 720-961 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CO | – | yes | yes |
| 720-962 | Lumen QWEST CORPORATION | – | no | yes |
| 720-963 | Lumen QWEST CORPORATION | – | no | yes |
| 720-965 | T-Mobile T-MOBILE USA, INC. | 2013-06-07 | yes | yes |
| 720-967 | LEAP TELECOM, LLC | 2022-09-21 | yes | yes |
| 720-968 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-08-17 | yes | yes |
| 720-969 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-10-18 | yes | yes |
| 720-971 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-972 | Lumen QWEST CORPORATION | 2002-04-23 | no | yes |
| 720-973 | HADLO TECHNOLOGIES, LLC | 2023-03-06 | yes | yes |
| 720-974 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 720-975 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 720-977 | Lumen QWEST CORPORATION | – | no | yes |
| 720-978 | NUSO, LLC | 2022-11-15 | yes | yes |
| 720-979 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-980 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-981 | Lumen QWEST CORPORATION | – | no | yes |
| 720-982 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-983 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2023-05-25 | yes | yes |
| 720-984 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-985 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-987 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-988 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-989 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 720-990 | Lumen LEVEL 3 TELECOM OF COLORADO, LLC - CO | 2015-07-21 | yes | yes |
| 720-992 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 2018-01-11 | yes | yes |
| 720-993 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2022-10-18 | yes | yes |
| 720-994 | T-Mobile T-MOBILE USA, INC. | 2022-11-23 | yes | yes |
| 720-995 | EON TELECOM, INC. | 2022-12-28 | yes | yes |
| 720-996 | COMMIO, LLC | 2017-03-15 | yes | yes |
| 720-998 | Comcast COMCAST IP PHONE, LLC | 2006-12-01 | yes | yes |
| 720-999 | T-Mobile T-MOBILE USA, INC. | 2008-07-22 | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| T-MOBILE USA, INC. | T-Mobile | 125 | 18.4% |
| QWEST CORPORATION | Lumen | 98 | 14.5% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 85 | 12.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | Verizon | 63 | 9.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 49 | 7.2% |
| LEVEL 3 COMMUNICATIONS, LLC - CO | Lumen | 42 | 6.2% |
| ONVOY, LLC - CO | Onvoy | 35 | 5.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CO | AT&T | 30 | 4.4% |
| BANDWIDTH.COM CLEC, LLC - CO | Bandwidth | 29 | 4.3% |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | Allstream | 17 | 2.5% |
| COMCAST IP PHONE, LLC | Comcast | 17 | 2.5% |
| LEVEL 3 TELECOM OF COLORADO, LLC - CO | Lumen | 15 | 2.2% |
| PAETEC ITEL, LLC | Windstream | 10 | 1.5% |
| METROPCS, INC. | T-Mobile | 9 | 1.3% |
| PEERLESS NETWORK OF COLORADO, LLC - CO | Peerless | 7 | 1% |
| AT&T - LOCAL | AT&T | 4 | 0.6% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 4 | 0.6% |
| ONVOY SPECTRUM, LLC | Charter | 3 | 0.4% |
| NUSO, LLC | – | 3 | 0.4% |
| XO COLORADO, LLC | – | 2 | 0.3% |
| TELIAX, INC. - CO | – | 2 | 0.3% |
| VONAGE AMERICA LLC | Vonage | 2 | 0.3% |
| COMMIO, LLC | – | 2 | 0.3% |
| HD CARRIER LLC | – | 2 | 0.3% |
| LEAP TELECOM, LLC | – | 2 | 0.3% |
| FIVE9, INC. | – | 2 | 0.3% |
| ZIPPYTECH INCORPORATED | – | 1 | 0.1% |
| INTRADO COMMUNICATIONS, LLC | – | 1 | 0.1% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 1 | 0.1% |
| FASTTRACK COMMUNICATIONS, INC. - CO | – | 1 | 0.1% |
| AIRESPRING, INC. | – | 1 | 0.1% |
| TELSTAR COMMUNICATIONS INC | – | 1 | 0.1% |
| EXIANT COMMUNICATIONS LLC | – | 1 | 0.1% |
| CSC WIRELESS, LLC | – | 1 | 0.1% |
| THE VOICE APPLICATION NETWORK, LLC | – | 1 | 0.1% |
| TWILIO INTERNATIONAL, INC. | Twilio | 1 | 0.1% |
| FRACTEL, LLC | – | 1 | 0.1% |
| VOIP INNOVATIONS, LLC | VoIP Innovations | 1 | 0.1% |
| IP HORIZON LLC | – | 1 | 0.1% |
| WIDE VOICE, LLC - CO | – | 1 | 0.1% |
| TERRA NOVA TELECOM INC. | – | 1 | 0.1% |
| TELNYX LLC | Telnyx | 1 | 0.1% |
| ADVANCED TELECOM SOLUTIONS, LLC | – | 1 | 0.1% |
| HADLO TECHNOLOGIES, LLC | – | 1 | 0.1% |
| EON TELECOM, INC. | – | 1 | 0.1% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to DENVER in area code 720?
678 blocks: 200, 201, 202, 203, 205, 206, 207, 208, 209, 210, 212, 213 and 666 more, all listed in the table above.
Which carriers have numbers in DENVER?
T-MOBILE USA, INC. (125 blocks), QWEST CORPORATION (98 blocks), NEW CINGULAR WIRELESS PCS, LLC (85 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO (63 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (49 blocks), LEVEL 3 COMMUNICATIONS, LLC - CO (42 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is DENVER a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.