Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
HOUSTON prefixes in area code 713
NANPA records 737 assigned NXX blocks to rate center HOUSTON in area code 713, 93.9% 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. 28 holders hold those blocks, the largest being SOUTHWESTERN BELL (452), SPOK, INC. (62), NEW CINGULAR WIRELESS PCS, LLC - IL (55). The earliest assignment on record here is 2001-01-18 and the most recent 2025-06-23. 299 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 281, 346, 417, 507 – overlay codes cover the same geography, so a rate center is served by all of them.
737 assigned blocks – 93.9% of 713
28 holders of record
299 of them pooled in 1,000-number lots
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 713-200 | Spok SPOK, INC. | – | no | yes |
| 713-201 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-202 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-203 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-204 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-205 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-206 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-207 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-208 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-209 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-210 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-212 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-213 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-214 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-215 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-216 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-217 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-218 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-219 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-220 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-221 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-222 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-223 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-224 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-225 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-226 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-227 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-228 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-229 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-230 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-231 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-232 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-233 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-235 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-236 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-237 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-238 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-239 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | 2011-08-01 | yes | yes |
| 713-240 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-241 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | no | yes |
| 713-242 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-243 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-244 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-245 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-247 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-248 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-249 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-250 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-251 | AT&T SOUTHWESTERN BELL | 2008-07-02 | yes | yes |
| 713-252 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-253 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-254 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-255 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-256 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-257 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-258 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2007-11-27 | yes | yes |
| 713-259 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-260 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-261 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2004-03-10 | yes | yes |
| 713-262 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-263 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-264 | AT&T SOUTHWESTERN BELL | 2001-04-19 | yes | yes |
| 713-265 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-266 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-267 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-268 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-269 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-270 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-271 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-272 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-273 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-274 | AT&T SOUTHWESTERN BELL | 2010-07-19 | yes | yes |
| 713-275 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-276 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-277 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-278 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-279 | Spok SPOK, INC. | – | no | yes |
| 713-283 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-284 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-285 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-286 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-287 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-288 | Spok SPOK, INC. | – | no | yes |
| 713-289 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-290 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-291 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-292 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-293 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-294 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-295 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-296 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-297 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-298 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-299 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-300 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | no | yes |
| 713-301 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-302 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-303 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-304 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-305 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-306 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-307 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-308 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-309 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-310 | Spok SPOK, INC. | – | no | yes |
| 713-312 | TELETOUCH COMMUNICATIONS, INC. | – | no | yes |
| 713-313 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-314 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-315 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-316 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-317 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 713-318 | Spok SPOK, INC. | – | no | yes |
| 713-319 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-320 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-321 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-322 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2013-05-20 | yes | yes |
| 713-324 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | – | no | yes |
| 713-325 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2014-01-21 | yes | yes |
| 713-326 | Spok SPOK, INC. | – | no | yes |
| 713-327 | Spok SPOK, INC. | – | no | yes |
| 713-328 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | yes | yes |
| 713-329 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-330 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-331 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | no | yes |
| 713-332 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | no | yes |
| 713-333 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-334 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-335 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-336 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-337 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-338 | AT&T SOUTHWESTERN BELL | 2010-04-05 | yes | yes |
| 713-339 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-341 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-342 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-343 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 713-344 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-345 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-346 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | no | yes |
| 713-347 | Onvoy ONVOY, LLC - TX | 2022-04-28 | yes | yes |
| 713-348 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-349 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-350 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-351 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | yes | yes |
| 713-353 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | no | yes |
| 713-354 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-355 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-356 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-357 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-358 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-359 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-360 | Windstream PAETEC ITEL, LLC | 2011-09-12 | yes | yes |
| 713-361 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-362 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2001-12-14 | no | yes |
| 713-363 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-364 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2006-07-25 | yes | yes |
| 713-365 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-366 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | yes | yes |
| 713-367 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2006-09-18 | yes | yes |
| 713-368 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-369 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | no | yes |
| 713-370 | Onvoy ONVOY, LLC - TX | 2008-08-20 | yes | yes |
| 713-371 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-372 | AT&T SOUTHWESTERN BELL | 2007-03-12 | yes | yes |
| 713-373 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | yes | yes |
| 713-374 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-375 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-376 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-378 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-380 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2013-08-19 | yes | yes |
| 713-381 | AT&T SOUTHWESTERN BELL | 2006-03-01 | yes | yes |
| 713-382 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-383 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-384 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-385 | T-Mobile METROPCS, INC. | – | yes | yes |
| 713-386 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-387 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-388 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-390 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-391 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-392 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-393 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-394 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-395 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-396 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | yes | yes |
| 713-397 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-398 | T-Mobile METROPCS, INC. | – | yes | yes |
| 713-399 | Charter ONVOY SPECTRUM, LLC | 2022-05-04 | yes | yes |
| 713-400 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-401 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-402 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-403 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-404 | Spok SPOK, INC. | – | no | yes |
| 713-405 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-406 | Spok SPOK, INC. | – | no | yes |
| 713-407 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-408 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 713-409 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-410 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-412 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-413 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-414 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-415 | Spok SPOK, INC. | – | no | yes |
| 713-416 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-417 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-418 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-419 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-420 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-421 | TELETOUCH COMMUNICATIONS, INC. | – | no | yes |
| 713-422 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-423 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-425 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-426 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-427 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-428 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-429 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | 2005-03-14 | yes | yes |
| 713-430 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-431 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | yes | yes |
| 713-432 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-433 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-434 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-435 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-437 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-438 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-439 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-440 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-441 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-442 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-443 | T-Mobile METROPCS, INC. | – | yes | yes |
| 713-444 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-445 | AT&T SOUTHWESTERN BELL | 2001-12-11 | yes | yes |
| 713-446 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-447 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-448 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-449 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-450 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-451 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-452 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2008-04-29 | yes | yes |
| 713-453 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-454 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-455 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-456 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-457 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-458 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-459 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-460 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-461 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-462 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-463 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-464 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-465 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-467 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-468 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-469 | AT&T SOUTHWESTERN BELL | 2008-09-05 | yes | yes |
| 713-470 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-471 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-472 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-473 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-475 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-476 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-477 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-478 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-479 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-480 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-481 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | – | yes | yes |
| 713-483 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-484 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-485 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2008-12-10 | yes | yes |
| 713-486 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2008-07-22 | yes | yes |
| 713-487 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2009-10-22 | yes | yes |
| 713-488 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-489 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2008-11-21 | yes | yes |
| 713-490 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 713-491 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-492 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-01-18 | yes | yes |
| 713-493 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | – | yes | yes |
| 713-494 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-495 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-496 | Onvoy ONVOY, LLC - TX | – | yes | yes |
| 713-497 | AT&T SOUTHWESTERN BELL | 2002-03-07 | yes | yes |
| 713-498 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-499 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-500 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-501 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-502 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-503 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-504 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-505 | AT&T AT&T ENTERPRISES, LLC | – | yes | yes |
| 713-506 | Spok SPOK, INC. | – | no | yes |
| 713-507 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-508 | Spok SPOK, INC. | – | no | yes |
| 713-509 | Spok SPOK, INC. | – | no | yes |
| 713-512 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-513 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-514 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-515 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-516 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-517 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2005-07-27 | yes | yes |
| 713-518 | WESTEL, INC. - TX | 2006-06-19 | yes | yes |
| 713-520 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-521 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-522 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-523 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-524 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-525 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-526 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-527 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-528 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-529 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-530 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-532 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-533 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-534 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-535 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-536 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-537 | AT&T SOUTHWESTERN BELL | 2002-06-17 | no | yes |
| 713-539 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-540 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-541 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-542 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-543 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-544 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-545 | T-Mobile METROPCS, INC. | – | yes | yes |
| 713-546 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-547 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-548 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-549 | Spok SPOK, INC. | – | no | yes |
| 713-550 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | yes | yes |
| 713-551 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-552 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-553 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 713-554 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | – | no | yes |
| 713-556 | AT&T SOUTHWESTERN BELL | 2006-02-07 | yes | yes |
| 713-557 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-558 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-559 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | – | no | yes |
| 713-560 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-561 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-562 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-563 | AT&T SOUTHWESTERN BELL | 2002-05-15 | no | yes |
| 713-566 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-567 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-568 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | – | yes | yes |
| 713-569 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-571 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-572 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-574 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | 2004-08-12 | yes | yes |
| 713-576 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | yes | yes |
| 713-577 | AT&T AT&T - LOCAL | – | yes | yes |
| 713-578 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-579 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-580 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | – | no | yes |
| 713-581 | Onvoy ONVOY, LLC - TX | – | yes | yes |
| 713-582 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-583 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2004-12-13 | yes | yes |
| 713-584 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-585 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-586 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-587 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-588 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-589 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-590 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | no | yes |
| 713-591 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 713-592 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-593 | Spok SPOK, INC. | – | no | yes |
| 713-594 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-595 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | no | yes |
| 713-596 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-597 | Onvoy ONVOY, LLC - TX | 2014-01-22 | yes | yes |
| 713-598 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-599 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-600 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-601 | Spok SPOK, INC. | – | no | yes |
| 713-602 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-603 | Spok SPOK, INC. | – | no | yes |
| 713-604 | Spok SPOK, INC. | – | no | yes |
| 713-605 | Spok SPOK, INC. | – | no | yes |
| 713-606 | Spok SPOK, INC. | – | no | yes |
| 713-607 | Spok SPOK, INC. | – | no | yes |
| 713-608 | Spok SPOK, INC. | – | no | yes |
| 713-609 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-610 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-612 | TELETOUCH COMMUNICATIONS, INC. | – | no | yes |
| 713-613 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-614 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-615 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-616 | Spok SPOK, INC. | – | no | yes |
| 713-617 | Spok SPOK, INC. | – | no | yes |
| 713-618 | Spok SPOK, INC. | – | no | yes |
| 713-619 | Spok SPOK, INC. | – | no | yes |
| 713-620 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-621 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-622 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-623 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-624 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-625 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-626 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-627 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-628 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-629 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-630 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-631 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-632 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-633 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-634 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-635 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-636 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-637 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-638 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-639 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-640 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-641 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-642 | Spok SPOK, INC. | – | no | yes |
| 713-643 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-644 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-645 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-646 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-647 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-648 | Spok SPOK, INC. | – | no | yes |
| 713-649 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-650 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-651 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-652 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-653 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-654 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-655 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-656 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-657 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-658 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-659 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-660 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-661 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-662 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-663 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-664 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-665 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-666 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-667 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-668 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-669 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-670 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-671 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-672 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-673 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-674 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-675 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-676 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-677 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-678 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-679 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-680 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-681 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-682 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-683 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-684 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-685 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-686 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-687 | Spok SPOK, INC. | – | no | yes |
| 713-688 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-689 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-690 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-691 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-692 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-693 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-694 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-695 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-696 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-697 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-698 | Spok SPOK, INC. | – | no | yes |
| 713-699 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-701 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-702 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-703 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-704 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-705 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-706 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-707 | Spok SPOK, INC. | – | no | yes |
| 713-708 | Spok SPOK, INC. | – | no | yes |
| 713-709 | Spok SPOK, INC. | – | no | yes |
| 713-710 | Spok SPOK, INC. | – | no | yes |
| 713-712 | Spok SPOK, INC. | – | no | yes |
| 713-713 | USFON, INC. - TX | 2023-01-06 | yes | yes |
| 713-714 | Comcast COMCAST IP PHONE, LLC | 2011-05-27 | yes | yes |
| 713-715 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-716 | Spok SPOK, INC. | – | no | yes |
| 713-717 | Spok SPOK, INC. | – | no | yes |
| 713-718 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-719 | Spok SPOK, INC. | – | no | yes |
| 713-720 | Spok SPOK, INC. | – | no | yes |
| 713-721 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-722 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-723 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-724 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-725 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-726 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-728 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-729 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-730 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-731 | AT&T SOUTHWESTERN BELL | 2001-04-19 | yes | yes |
| 713-732 | AT&T SOUTHWESTERN BELL | 2001-04-19 | yes | yes |
| 713-733 | AT&T SOUTHWESTERN BELL | 2001-04-19 | no | yes |
| 713-734 | AT&T SOUTHWESTERN BELL | 2001-04-19 | no | yes |
| 713-735 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-736 | Spok SPOK, INC. | – | no | yes |
| 713-737 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-738 | AT&T SOUTHWESTERN BELL | 2001-04-19 | no | yes |
| 713-739 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-740 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-741 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-742 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-743 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-744 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-745 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-746 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-747 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-748 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-749 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-750 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-751 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-752 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-753 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-754 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-755 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-756 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-757 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-758 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-759 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-760 | Spok SPOK, INC. | – | no | yes |
| 713-761 | Spok SPOK, INC. | – | no | yes |
| 713-762 | Spok SPOK, INC. | – | no | yes |
| 713-763 | Spok SPOK, INC. | – | no | yes |
| 713-764 | Spok SPOK, INC. | – | no | yes |
| 713-765 | Spok SPOK, INC. | – | no | yes |
| 713-766 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2013-08-27 | yes | yes |
| 713-767 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-768 | Spok SPOK, INC. | – | no | yes |
| 713-770 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-771 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-772 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-773 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-774 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-775 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-776 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-777 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-778 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-779 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-780 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-781 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-782 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-783 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-784 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-785 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-786 | Spok SPOK, INC. | – | no | yes |
| 713-787 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-788 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-789 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-790 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-791 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-792 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-793 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-794 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-795 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-796 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-797 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-798 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-799 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-800 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-801 | Spok SPOK, INC. | – | no | yes |
| 713-802 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-803 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-804 | Onvoy ONVOY, LLC - TX | 2018-12-13 | yes | yes |
| 713-805 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-806 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-807 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-808 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-809 | Spok SPOK, INC. | – | no | yes |
| 713-812 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-813 | Spok SPOK, INC. | – | no | yes |
| 713-814 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | 2017-09-22 | yes | yes |
| 713-815 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2012-09-26 | yes | yes |
| 713-816 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-817 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-818 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-819 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-820 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-821 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | no | yes |
| 713-822 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-823 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-824 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-825 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-826 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-827 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-828 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-829 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-830 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | no | yes |
| 713-831 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-832 | Onvoy ONVOY, LLC - TX | 2022-07-19 | yes | yes |
| 713-833 | Spok SPOK, INC. | – | no | yes |
| 713-834 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-835 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | – | yes | yes |
| 713-836 | AT&T SOUTHWESTERN BELL | 2010-12-16 | yes | yes |
| 713-837 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-838 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-839 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-840 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-841 | Spok SPOK, INC. | – | no | yes |
| 713-842 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-843 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-844 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-845 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-846 | Spok SPOK, INC. | – | no | yes |
| 713-847 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-848 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2006-08-02 | yes | yes |
| 713-850 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-851 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-852 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-853 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-854 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-855 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2005-04-18 | yes | yes |
| 713-857 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-858 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-859 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-860 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | no | yes |
| 713-861 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-862 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-863 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-864 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-865 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-866 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-867 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-868 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-869 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-870 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-871 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-872 | RICE TELECOM CORPORATION | 2025-06-23 | yes | yes |
| 713-873 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-874 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-875 | T-Mobile METROPCS, INC. | – | yes | yes |
| 713-876 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 713-877 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-878 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-880 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-881 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-882 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-883 | Spok SPOK, INC. | – | no | yes |
| 713-884 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-885 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-888 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-889 | AT&T SOUTHWESTERN BELL | 2004-10-07 | no | yes |
| 713-890 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-891 | Spok SPOK, INC. | – | no | yes |
| 713-892 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-894 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-895 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-898 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-899 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-900 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | – | yes | yes |
| 713-901 | Spok SPOK, INC. | – | no | yes |
| 713-904 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2011-09-23 | yes | yes |
| 713-905 | Spok SPOK, INC. | – | no | yes |
| 713-906 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-907 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | no | yes |
| 713-908 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 713-910 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-914 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-915 | Spok SPOK, INC. | – | no | yes |
| 713-916 | Spok SPOK, INC. | – | no | yes |
| 713-917 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-918 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-920 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-921 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-922 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | no | yes |
| 713-923 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-924 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-925 | Charter ONVOY SPECTRUM, LLC | 2022-07-15 | yes | yes |
| 713-926 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-927 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 713-928 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-929 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | 2005-08-19 | yes | yes |
| 713-930 | Onvoy ONVOY, LLC - TX | 2020-12-08 | yes | yes |
| 713-931 | Onvoy ONVOY, LLC - TX | 2007-05-04 | yes | yes |
| 713-932 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-933 | Onvoy ONVOY, LLC - TX | – | yes | yes |
| 713-934 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-935 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-936 | Onvoy ONVOY, LLC - TX | 2007-09-19 | yes | yes |
| 713-939 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-940 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-941 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-942 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-943 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-944 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-945 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-946 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-947 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-948 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-951 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-952 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-953 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-954 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-955 | Peerless PEERLESS NETWORK OF TEXAS, LLC - TX | 2011-04-14 | yes | yes |
| 713-956 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-957 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-960 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-961 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-962 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-05-08 | no | yes |
| 713-963 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-964 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-965 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-966 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-967 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-968 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-969 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 713-970 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-971 | Spok SPOK, INC. | – | no | yes |
| 713-972 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-973 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-974 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-975 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-977 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-978 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-979 | Onvoy ONVOY, LLC - TX | – | yes | yes |
| 713-980 | Onvoy ONVOY, LLC - TX | – | no | yes |
| 713-981 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-982 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-984 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-985 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-986 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | no | yes |
| 713-987 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-988 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-989 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-990 | Spok SPOK, INC. | – | no | yes |
| 713-991 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-993 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 713-994 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-995 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-996 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 713-997 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2011-09-07 | 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 |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 452 | 61.3% |
| SPOK, INC. | Spok | 62 | 8.4% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 55 | 7.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | Verizon | 35 | 4.7% |
| AERIAL COMMUNICATIONS, INC. | T-Mobile | 21 | 2.8% |
| ONVOY, LLC - TX | Onvoy | 20 | 2.7% |
| LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | Lumen | 18 | 2.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | Verizon | 17 | 2.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | AT&T | 11 | 1.5% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | Lumen | 9 | 1.2% |
| METROPCS, INC. | T-Mobile | 5 | 0.7% |
| BANDWIDTH.COM CLEC, LLC - TX | Bandwidth | 4 | 0.5% |
| TELETOUCH COMMUNICATIONS, INC. | – | 3 | 0.4% |
| GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | 3 | 0.4% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 3 | 0.4% |
| MATRIX TELECOM, LLC. S/I/I TNCI - TX | – | 3 | 0.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 0.3% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 2 | 0.3% |
| PAETEC ITEL, LLC | Windstream | 2 | 0.3% |
| ONVOY SPECTRUM, LLC | Charter | 2 | 0.3% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 0.1% |
| WESTEL, INC. - TX | – | 1 | 0.1% |
| AT&T - LOCAL | AT&T | 1 | 0.1% |
| USFON, INC. - TX | – | 1 | 0.1% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 0.1% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 0.1% |
| RICE TELECOM CORPORATION | – | 1 | 0.1% |
| PEERLESS NETWORK OF TEXAS, LLC - TX | Peerless | 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 HOUSTON in area code 713?
737 blocks: 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 212 and 725 more, all listed in the table above.
Which carriers have numbers in HOUSTON?
SOUTHWESTERN BELL (452 blocks), SPOK, INC. (62 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (55 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (35 blocks), AERIAL COMMUNICATIONS, INC. (21 blocks), ONVOY, LLC - TX (20 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is HOUSTON 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.