Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 713 prefixes
785 of the 786 possible NXX blocks are assigned in area code 713 (99.9% of capacity), spread across 19 rate centers and 29 holders. The largest holders are SOUTHWESTERN BELL (470 blocks, 59.9%), SPOK, INC. (62 blocks, 7.9%), NEW CINGULAR WIRELESS PCS, LLC - IL (55 blocks, 7.0%). Grouped by brand, AT&T accounts for 541 blocks; brand-attributable holders cover 98% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-01-18 to 2026-02-25, with 22 blocks handed out in 2001 alone. 338 blocks (43%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 47 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
785 assigned blocks of 786
19 rate centers
29 holders of record
43% in thousands-block pooling
Largest holders in 713
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 470 | 59.9% |
| SPOK, INC. | Spok | 62 | 7.9% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 55 | 7% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | Verizon | 38 | 4.8% |
| ONVOY, LLC - TX | Onvoy | 25 | 3.2% |
| AERIAL COMMUNICATIONS, INC. | T-Mobile | 24 | 3.1% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | Verizon | 19 | 2.4% |
| LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | Lumen | 19 | 2.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | AT&T | 13 | 1.7% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | Lumen | 11 | 1.4% |
| ONVOY SPECTRUM, LLC | Charter | 9 | 1.1% |
| BANDWIDTH.COM CLEC, LLC - TX | Bandwidth | 6 | 0.8% |
Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.
Rate centers with their own page
Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.
All 785 assigned blocks
One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.
| Prefix | Holder of record | Rate center | Assigned | Pooled | In service |
|---|---|---|---|---|---|
| 713-200 | Spok | HOUSTON | – | – | yes |
| 713-201 | Verizon | HOUSTON | – | – | yes |
| 713-202 | Verizon | HOUSTON | – | – | yes |
| 713-203 | Verizon | HOUSTON | – | – | yes |
| 713-204 | Verizon | HOUSTON | – | – | yes |
| 713-205 | Verizon | HOUSTON | – | – | yes |
| 713-206 | Verizon | HOUSTON | – | – | yes |
| 713-207 | AT&T | HOUSTON | – | – | yes |
| 713-208 | Verizon | HOUSTON | – | – | yes |
| 713-209 | AT&T | HOUSTON | – | – | yes |
| 713-210 | AT&T | HOUSTON | – | yes | yes |
| 713-212 | AT&T | HOUSTON | – | yes | yes |
| 713-213 | AT&T | HOUSTON | – | – | yes |
| 713-214 | AT&T | HOUSTON | – | – | yes |
| 713-215 | AT&T | HOUSTON | – | – | yes |
| 713-216 | AT&T | HOUSTON | – | – | yes |
| 713-217 | AT&T | HOUSTON | – | – | yes |
| 713-218 | AT&T | HOUSTON | – | – | yes |
| 713-219 | AT&T | HOUSTON | – | yes | yes |
| 713-220 | AT&T | HOUSTON | – | – | yes |
| 713-221 | AT&T | HOUSTON | – | yes | yes |
| 713-222 | AT&T | HOUSTON | – | – | yes |
| 713-223 | AT&T | HOUSTON | – | – | yes |
| 713-224 | AT&T | HOUSTON | – | – | yes |
| 713-225 | AT&T | HOUSTON | – | – | yes |
| 713-226 | AT&T | HOUSTON | – | yes | yes |
| 713-227 | AT&T | HOUSTON | – | – | yes |
| 713-228 | AT&T | HOUSTON | – | yes | yes |
| 713-229 | AT&T | HOUSTON | – | – | yes |
| 713-230 | AT&T | HOUSTON | – | yes | yes |
| 713-231 | T-Mobile | HOUSTON | – | yes | yes |
| 713-232 | AT&T | HOUSTON | – | yes | yes |
| 713-233 | AT&T | HOUSTON | – | – | yes |
| 713-234 | AT&T | SUGAR LAND | 2007-09-06 | yes | yes |
| 713-235 | AT&T | HOUSTON | – | yes | yes |
| 713-236 | AT&T | HOUSTON | – | – | yes |
| 713-237 | AT&T | HOUSTON | – | – | yes |
| 713-238 | AT&T | HOUSTON | – | – | yes |
| 713-239 | Lumen | HOUSTON | 2011-08-01 | yes | yes |
| 713-240 | T-Mobile | HOUSTON | – | – | yes |
| 713-241 | Verizon | HOUSTON | – | – | yes |
| 713-242 | AT&T | HOUSTON | – | yes | yes |
| 713-243 | AT&T | HOUSTON | – | – | yes |
| 713-244 | AT&T | HOUSTON | – | yes | yes |
| 713-245 | AT&T | HOUSTON | – | yes | yes |
| 713-246 | AT&T | DEER PARK | – | – | yes |
| 713-247 | AT&T | HOUSTON | – | yes | yes |
| 713-248 | Verizon | HOUSTON | – | – | yes |
| 713-249 | Verizon | HOUSTON | – | – | yes |
| 713-250 | AT&T | HOUSTON | – | yes | yes |
| 713-251 | AT&T | HOUSTON | 2008-07-02 | yes | yes |
| 713-252 | Verizon | HOUSTON | – | – | yes |
| 713-253 | Verizon | HOUSTON | – | – | yes |
| 713-254 | Verizon | HOUSTON | – | – | yes |
| 713-255 | Onvoy | HOUSTON | – | – | yes |
| 713-256 | T-Mobile | HOUSTON | – | yes | yes |
| 713-257 | AT&T | HOUSTON | – | yes | yes |
| 713-258 | Verizon | HOUSTON | 2007-11-27 | yes | yes |
| 713-259 | AT&T | HOUSTON | – | yes | yes |
| 713-260 | AT&T | HOUSTON | – | – | yes |
| 713-261 | T-Mobile | HOUSTON | 2004-03-10 | yes | yes |
| 713-262 | AT&T | HOUSTON | – | yes | yes |
| 713-263 | AT&T | HOUSTON | – | yes | yes |
| 713-264 | AT&T | HOUSTON | 2001-04-19 | yes | yes |
| 713-265 | AT&T | HOUSTON | – | yes | yes |
| 713-266 | AT&T | HOUSTON | – | – | yes |
| 713-267 | AT&T | HOUSTON | – | – | yes |
| 713-268 | AT&T | HOUSTON | – | – | yes |
| 713-269 | T-Mobile | HOUSTON | – | – | yes |
| 713-270 | AT&T | HOUSTON | – | – | yes |
| 713-271 | AT&T | HOUSTON | – | – | yes |
| 713-272 | AT&T | HOUSTON | – | – | yes |
| 713-273 | AT&T | HOUSTON | – | – | yes |
| 713-274 | AT&T | HOUSTON | 2010-07-19 | yes | yes |
| 713-275 | Onvoy | HOUSTON | – | – | yes |
| 713-276 | AT&T | HOUSTON | – | – | yes |
| 713-277 | AT&T | HOUSTON | – | yes | yes |
| 713-278 | AT&T | HOUSTON | – | – | yes |
| 713-279 | Spok | HOUSTON | – | – | yes |
| 713-280 | Verizon | HSTNSUBURB | – | yes | yes |
| 713-281 | Verizon | RICHMNRNBG | 2022-06-15 | yes | yes |
| 713-282 | T-Mobile | CLEVELAND | 2023-10-04 | yes | yes |
| 713-283 | AT&T | HOUSTON | – | yes | yes |
| 713-284 | AT&T | HOUSTON | – | – | yes |
| 713-285 | AT&T | HOUSTON | – | – | yes |
| 713-286 | AT&T | HOUSTON | – | – | yes |
| 713-287 | AT&T | HOUSTON | – | yes | yes |
| 713-288 | Spok | HOUSTON | – | – | yes |
| 713-289 | AT&T | HOUSTON | – | yes | yes |
| 713-290 | AT&T | HOUSTON | – | – | yes |
| 713-291 | T-Mobile | HOUSTON | – | – | yes |
| 713-292 | Verizon | HOUSTON | – | yes | yes |
| 713-293 | AT&T | HOUSTON | – | yes | yes |
| 713-294 | AT&T | HOUSTON | – | – | yes |
| 713-295 | AT&T | HOUSTON | – | yes | yes |
| 713-296 | AT&T | HOUSTON | – | yes | yes |
| 713-297 | AT&T | HOUSTON | – | yes | yes |
| 713-298 | T-Mobile | HOUSTON | – | – | yes |
| 713-299 | Verizon | HOUSTON | – | – | yes |
| 713-300 | Verizon | HOUSTON | – | – | yes |
| 713-301 | AT&T | HOUSTON | – | – | yes |
| 713-302 | AT&T | HOUSTON | – | – | yes |
| 713-303 | AT&T | HOUSTON | – | – | yes |
| 713-304 | AT&T | HOUSTON | – | – | yes |
| 713-305 | AT&T | HOUSTON | – | – | yes |
| 713-306 | AT&T | HOUSTON | – | – | yes |
| 713-307 | AT&T | HOUSTON | – | yes | yes |
| 713-308 | AT&T | HOUSTON | – | – | yes |
| 713-309 | AT&T | HOUSTON | – | yes | yes |
| 713-310 | Spok | HOUSTON | – | – | yes |
| 713-312 | TELETOUCH COMMUNICATIONS, INC. | HOUSTON | – | – | yes |
| 713-313 | AT&T | HOUSTON | – | – | yes |
| 713-314 | AT&T | HOUSTON | – | yes | yes |
| 713-315 | AT&T | HOUSTON | – | yes | yes |
| 713-316 | AT&T | HOUSTON | – | – | yes |
| 713-317 | American Messaging | HOUSTON | – | – | yes |
| 713-318 | Spok | HOUSTON | – | – | yes |
| 713-319 | AT&T | HOUSTON | – | yes | yes |
| 713-320 | T-Mobile | HOUSTON | – | yes | yes |
| 713-321 | AT&T | HOUSTON | – | yes | yes |
| 713-322 | Bandwidth | HOUSTON | 2013-05-20 | yes | yes |
| 713-323 | Verizon | HSTNSUBURB | 2007-08-22 | yes | yes |
| 713-324 | Lumen | HOUSTON | – | – | yes |
| 713-325 | AT&T | HOUSTON | 2014-01-21 | yes | yes |
| 713-326 | Spok | HOUSTON | – | – | yes |
| 713-327 | Spok | HOUSTON | – | – | yes |
| 713-328 | Lumen | HOUSTON | – | yes | yes |
| 713-329 | AT&T | HOUSTON | – | – | yes |
| 713-330 | AT&T | HOUSTON | – | yes | yes |
| 713-331 | Verizon | HOUSTON | – | – | yes |
| 713-332 | Verizon | HOUSTON | – | – | yes |
| 713-333 | Onvoy | HOUSTON | – | – | yes |
| 713-334 | AT&T | HOUSTON | – | – | yes |
| 713-335 | Lumen | HOUSTON | – | – | yes |
| 713-336 | AT&T | HOUSTON | – | yes | yes |
| 713-337 | Onvoy | HOUSTON | – | – | yes |
| 713-338 | AT&T | HOUSTON | 2010-04-05 | yes | yes |
| 713-339 | AT&T | HOUSTON | – | yes | yes |
| 713-340 | AT&T | HSTNSUBURB | – | yes | yes |
| 713-341 | Lumen | HOUSTON | – | – | yes |
| 713-342 | AT&T | HOUSTON | – | – | yes |
| 713-343 | Windstream | HOUSTON | – | – | yes |
| 713-344 | Verizon | HOUSTON | – | yes | yes |
| 713-345 | Verizon | HOUSTON | – | yes | yes |
| 713-346 | Verizon | HOUSTON | – | – | yes |
| 713-347 | Onvoy | HOUSTON | 2022-04-28 | yes | yes |
| 713-348 | AT&T | HOUSTON | – | yes | yes |
| 713-349 | AT&T | HOUSTON | – | yes | yes |
| 713-350 | AT&T | HOUSTON | – | – | yes |
| 713-351 | Lumen | HOUSTON | – | yes | yes |
| 713-352 | Bandwidth | APOLLO | 2013-05-21 | yes | yes |
| 713-353 | AT&T | HOUSTON | – | – | yes |
| 713-354 | Verizon | HOUSTON | – | yes | yes |
| 713-355 | AT&T | HOUSTON | – | yes | yes |
| 713-356 | AT&T | HOUSTON | – | – | yes |
| 713-357 | Verizon | HOUSTON | – | yes | yes |
| 713-358 | Lumen | HOUSTON | – | – | yes |
| 713-359 | AT&T | HOUSTON | – | yes | yes |
| 713-360 | Windstream | HOUSTON | 2011-09-12 | yes | yes |
| 713-361 | AT&T | HOUSTON | – | – | yes |
| 713-362 | Lumen | HOUSTON | 2001-12-14 | – | yes |
| 713-363 | AT&T | HOUSTON | – | yes | yes |
| 713-364 | Bandwidth | HOUSTON | 2006-07-25 | yes | yes |
| 713-365 | AT&T | HOUSTON | – | – | yes |
| 713-366 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | HOUSTON | – | yes | yes |
| 713-367 | Bandwidth | HOUSTON | 2006-09-18 | yes | yes |
| 713-368 | AT&T | HOUSTON | – | – | yes |
| 713-369 | Verizon | HOUSTON | – | – | yes |
| 713-370 | Onvoy | HOUSTON | 2008-08-20 | yes | yes |
| 713-371 | AT&T | HOUSTON | – | yes | yes |
| 713-372 | AT&T | HOUSTON | 2007-03-12 | yes | yes |
| 713-373 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | HOUSTON | – | yes | yes |
| 713-374 | AT&T | HOUSTON | – | yes | yes |
| 713-375 | Lumen | HOUSTON | – | – | yes |
| 713-376 | AT&T | HOUSTON | – | – | yes |
| 713-377 | AT&T | SPRING | – | yes | yes |
| 713-378 | AT&T | HOUSTON | – | yes | yes |
| 713-379 | Onvoy | APOLLO | 2022-05-04 | yes | yes |
| 713-380 | Lumen | HOUSTON | 2013-08-19 | yes | yes |
| 713-381 | AT&T | HOUSTON | 2006-03-01 | yes | yes |
| 713-382 | T-Mobile | HOUSTON | – | yes | yes |
| 713-383 | AT&T | HOUSTON | – | yes | yes |
| 713-384 | AT&T | HOUSTON | – | yes | yes |
| 713-385 | T-Mobile | HOUSTON | – | yes | yes |
| 713-386 | AT&T | HOUSTON | – | yes | yes |
| 713-387 | AT&T | HOUSTON | – | yes | yes |
| 713-388 | AT&T | HOUSTON | – | yes | yes |
| 713-389 | AT&T | SPRING | 2008-04-15 | yes | yes |
| 713-390 | AT&T | HOUSTON | – | – | yes |
| 713-391 | AT&T | HOUSTON | – | yes | yes |
| 713-392 | AT&T | HOUSTON | – | – | yes |
| 713-393 | AT&T | HOUSTON | – | yes | yes |
| 713-394 | AT&T | HOUSTON | – | – | yes |
| 713-395 | Lumen | HOUSTON | – | – | yes |
| 713-396 | Lumen | HOUSTON | – | yes | yes |
| 713-397 | AT&T | HOUSTON | – | – | yes |
| 713-398 | T-Mobile | HOUSTON | – | yes | yes |
| 713-399 | Charter | HOUSTON | 2022-05-04 | yes | yes |
| 713-400 | Onvoy | HOUSTON | – | – | yes |
| 713-401 | Verizon | HOUSTON | – | yes | yes |
| 713-402 | AT&T | HOUSTON | – | yes | yes |
| 713-403 | AT&T | HOUSTON | – | – | yes |
| 713-404 | Spok | HOUSTON | – | – | yes |
| 713-405 | AT&T | HOUSTON | – | yes | yes |
| 713-406 | Spok | HOUSTON | – | – | yes |
| 713-407 | AT&T | HOUSTON | – | – | yes |
| 713-408 | AT&T | HOUSTON | – | yes | yes |
| 713-409 | AT&T | HOUSTON | – | – | yes |
| 713-410 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-412 | AT&T | HOUSTON | – | – | yes |
| 713-413 | AT&T | HOUSTON | – | yes | yes |
| 713-414 | AT&T | HOUSTON | – | – | yes |
| 713-415 | Spok | HOUSTON | – | – | yes |
| 713-416 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-417 | AT&T | HOUSTON | – | – | yes |
| 713-418 | AT&T | HOUSTON | – | yes | yes |
| 713-419 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-420 | AT&T | HOUSTON | – | yes | yes |
| 713-421 | TELETOUCH COMMUNICATIONS, INC. | HOUSTON | – | – | yes |
| 713-422 | AT&T | HOUSTON | – | yes | yes |
| 713-423 | Verizon | HOUSTON | – | yes | yes |
| 713-424 | Onvoy | BAYTOWN | 2022-05-04 | yes | yes |
| 713-425 | Verizon | HOUSTON | – | yes | yes |
| 713-426 | AT&T | HOUSTON | – | – | yes |
| 713-427 | AT&T | HOUSTON | – | yes | yes |
| 713-428 | AT&T | HOUSTON | – | yes | yes |
| 713-429 | Lumen | HOUSTON | 2005-03-14 | yes | yes |
| 713-430 | AT&T | HOUSTON | – | yes | yes |
| 713-431 | AT&T | HOUSTON | – | yes | yes |
| 713-432 | AT&T | HOUSTON | – | yes | yes |
| 713-433 | AT&T | HOUSTON | – | – | yes |
| 713-434 | AT&T | HOUSTON | – | yes | yes |
| 713-435 | AT&T | HOUSTON | – | yes | yes |
| 713-436 | AT&T | HSTNSUBURB | – | – | yes |
| 713-437 | AT&T | HOUSTON | – | yes | yes |
| 713-438 | AT&T | HOUSTON | – | yes | yes |
| 713-439 | AT&T | HOUSTON | – | – | yes |
| 713-440 | AT&T | HOUSTON | – | yes | yes |
| 713-441 | Lumen | HOUSTON | – | – | yes |
| 713-442 | AT&T | HOUSTON | – | – | yes |
| 713-443 | T-Mobile | HOUSTON | – | yes | yes |
| 713-444 | AT&T | HOUSTON | – | – | yes |
| 713-445 | AT&T | HOUSTON | 2001-12-11 | yes | yes |
| 713-446 | T-Mobile | HOUSTON | – | yes | yes |
| 713-447 | AT&T | HOUSTON | – | – | yes |
| 713-448 | AT&T | HOUSTON | – | yes | yes |
| 713-449 | AT&T | HOUSTON | – | – | yes |
| 713-450 | AT&T | HOUSTON | – | – | yes |
| 713-451 | AT&T | HOUSTON | – | – | yes |
| 713-452 | Lumen | HOUSTON | 2008-04-29 | yes | yes |
| 713-453 | AT&T | HOUSTON | – | yes | yes |
| 713-454 | AT&T | HOUSTON | – | yes | yes |
| 713-455 | AT&T | HOUSTON | – | – | yes |
| 713-456 | AT&T | HOUSTON | – | yes | yes |
| 713-457 | Lumen | HOUSTON | – | – | yes |
| 713-458 | AT&T | HOUSTON | – | yes | yes |
| 713-459 | T-Mobile | HOUSTON | – | – | yes |
| 713-460 | AT&T | HOUSTON | – | – | yes |
| 713-461 | AT&T | HOUSTON | – | – | yes |
| 713-462 | AT&T | HOUSTON | – | yes | yes |
| 713-463 | AT&T | HOUSTON | – | – | yes |
| 713-464 | AT&T | HOUSTON | – | – | yes |
| 713-465 | AT&T | HOUSTON | – | – | yes |
| 713-466 | AT&T | HSTNSUBURB | – | – | yes |
| 713-467 | AT&T | HOUSTON | – | – | yes |
| 713-468 | AT&T | HOUSTON | – | – | yes |
| 713-469 | AT&T | HOUSTON | 2008-09-05 | yes | yes |
| 713-470 | Verizon | HOUSTON | – | yes | yes |
| 713-471 | AT&T | HOUSTON | – | – | yes |
| 713-472 | AT&T | HOUSTON | – | yes | yes |
| 713-473 | AT&T | HOUSTON | – | – | yes |
| 713-474 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | HSTNSUBURB | – | yes | yes |
| 713-475 | AT&T | HOUSTON | – | – | yes |
| 713-476 | AT&T | HOUSTON | – | yes | yes |
| 713-477 | AT&T | HOUSTON | – | – | yes |
| 713-478 | T-Mobile | HOUSTON | – | – | yes |
| 713-479 | AT&T | HOUSTON | – | – | yes |
| 713-480 | T-Mobile | HOUSTON | – | – | yes |
| 713-481 | Lumen | HOUSTON | – | yes | yes |
| 713-482 | Lumen | HSTNSUBURB | – | yes | yes |
| 713-483 | AT&T | HOUSTON | – | yes | yes |
| 713-484 | AT&T | HOUSTON | – | yes | yes |
| 713-485 | Verizon | HOUSTON | 2008-12-10 | yes | yes |
| 713-486 | Lumen | HOUSTON | 2008-07-22 | yes | yes |
| 713-487 | TPx | HOUSTON | 2009-10-22 | yes | yes |
| 713-488 | AT&T | HOUSTON | – | – | yes |
| 713-489 | Bandwidth | HOUSTON | 2008-11-21 | yes | yes |
| 713-490 | Verizon | HOUSTON | – | – | yes |
| 713-491 | AT&T | HOUSTON | – | yes | yes |
| 713-492 | AT&T | HOUSTON | 2001-01-18 | yes | yes |
| 713-493 | Lumen | HOUSTON | – | yes | yes |
| 713-494 | AT&T | HOUSTON | – | – | yes |
| 713-495 | AT&T | HOUSTON | – | – | yes |
| 713-496 | Onvoy | HOUSTON | – | yes | yes |
| 713-497 | AT&T | HOUSTON | 2002-03-07 | yes | yes |
| 713-498 | T-Mobile | HOUSTON | – | – | yes |
| 713-499 | AT&T | HOUSTON | – | yes | yes |
| 713-500 | AT&T | HOUSTON | – | – | yes |
| 713-501 | AT&T | HOUSTON | – | – | yes |
| 713-502 | AT&T | HOUSTON | – | – | yes |
| 713-503 | AT&T | HOUSTON | – | – | yes |
| 713-504 | AT&T | HOUSTON | – | – | yes |
| 713-505 | AT&T | HOUSTON | – | yes | yes |
| 713-506 | Spok | HOUSTON | – | – | yes |
| 713-507 | AT&T | HOUSTON | – | – | yes |
| 713-508 | Spok | HOUSTON | – | – | yes |
| 713-509 | Spok | HOUSTON | – | – | yes |
| 713-510 | AT&T | HSTNSUBURB | – | yes | yes |
| 713-512 | AT&T | HOUSTON | – | yes | yes |
| 713-513 | AT&T | HOUSTON | – | yes | yes |
| 713-514 | AT&T | HOUSTON | – | yes | yes |
| 713-515 | AT&T | HOUSTON | – | – | yes |
| 713-516 | AT&T | HOUSTON | – | – | yes |
| 713-517 | T-Mobile | HOUSTON | 2005-07-27 | yes | yes |
| 713-518 | WESTEL, INC. - TX | HOUSTON | 2006-06-19 | yes | yes |
| 713-519 | Charter | HSTNSUBURB | 2023-07-05 | yes | yes |
| 713-520 | AT&T | HOUSTON | – | – | yes |
| 713-521 | AT&T | HOUSTON | – | – | yes |
| 713-522 | AT&T | HOUSTON | – | – | yes |
| 713-523 | AT&T | HOUSTON | – | – | yes |
| 713-524 | AT&T | HOUSTON | – | – | yes |
| 713-525 | AT&T | HOUSTON | – | – | yes |
| 713-526 | AT&T | HOUSTON | – | – | yes |
| 713-527 | AT&T | HOUSTON | – | yes | yes |
| 713-528 | AT&T | HOUSTON | – | yes | yes |
| 713-529 | AT&T | HOUSTON | – | – | yes |
| 713-530 | T-Mobile | HOUSTON | – | – | yes |
| 713-531 | AT&T | HSTNSUBURB | 2007-11-07 | yes | yes |
| 713-532 | AT&T | HOUSTON | – | yes | yes |
| 713-533 | AT&T | HOUSTON | – | yes | yes |
| 713-534 | AT&T | HOUSTON | – | yes | yes |
| 713-535 | AT&T | HOUSTON | – | yes | yes |
| 713-536 | AT&T | HOUSTON | – | – | yes |
| 713-537 | AT&T | HOUSTON | 2002-06-17 | – | yes |
| 713-538 | AT&T | HSTNSUBURB | – | yes | yes |
| 713-539 | T-Mobile | HOUSTON | – | yes | yes |
| 713-540 | AT&T | HOUSTON | – | – | yes |
| 713-541 | AT&T | HOUSTON | – | – | yes |
| 713-542 | Verizon | HOUSTON | – | – | yes |
| 713-543 | AT&T | HOUSTON | – | yes | yes |
| 713-544 | AT&T | HOUSTON | – | – | yes |
| 713-545 | T-Mobile | HOUSTON | – | yes | yes |
| 713-546 | AT&T | HOUSTON | – | – | yes |
| 713-547 | AT&T | HOUSTON | – | yes | yes |
| 713-548 | AT&T | HOUSTON | – | yes | yes |
| 713-549 | Spok | HOUSTON | – | – | yes |
| 713-550 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | HOUSTON | – | yes | yes |
| 713-551 | AT&T | HOUSTON | – | yes | yes |
| 713-552 | AT&T | HOUSTON | – | yes | yes |
| 713-553 | AT&T | HOUSTON | – | yes | yes |
| 713-554 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | HOUSTON | – | – | yes |
| 713-556 | AT&T | HOUSTON | 2006-02-07 | yes | yes |
| 713-557 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-558 | AT&T | HOUSTON | – | – | yes |
| 713-559 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | HOUSTON | – | – | yes |
| 713-560 | AT&T | HOUSTON | – | – | yes |
| 713-561 | AT&T | HOUSTON | – | yes | yes |
| 713-562 | AT&T | HOUSTON | – | – | yes |
| 713-563 | AT&T | HOUSTON | 2002-05-15 | – | yes |
| 713-564 | Onvoy | SEABROOK | 2021-01-04 | yes | yes |
| 713-565 | Onvoy | HUFFMAN | 2021-01-04 | yes | yes |
| 713-566 | AT&T | HOUSTON | – | yes | yes |
| 713-567 | AT&T | HOUSTON | – | – | yes |
| 713-568 | Lumen | HOUSTON | – | yes | yes |
| 713-569 | AT&T | HOUSTON | – | – | yes |
| 713-570 | AT&T | HSTNSUBURB | – | yes | yes |
| 713-571 | AT&T | HOUSTON | – | yes | yes |
| 713-572 | AT&T | HOUSTON | – | yes | yes |
| 713-573 | AT&T | XXXXXXXXXX | – | – | yes |
| 713-574 | Lumen | HOUSTON | 2004-08-12 | yes | yes |
| 713-575 | AT&T | HSTNSUBURB | – | yes | yes |
| 713-576 | AT&T | HOUSTON | – | yes | yes |
| 713-577 | AT&T | HOUSTON | – | yes | yes |
| 713-578 | AT&T | HOUSTON | – | yes | yes |
| 713-579 | Lumen | HOUSTON | – | – | yes |
| 713-580 | Lumen | HOUSTON | – | – | yes |
| 713-581 | Onvoy | HOUSTON | – | yes | yes |
| 713-582 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-583 | Lumen | HOUSTON | 2004-12-13 | yes | yes |
| 713-584 | AT&T | HOUSTON | – | yes | yes |
| 713-585 | AT&T | HOUSTON | – | yes | yes |
| 713-586 | AT&T | HOUSTON | – | yes | yes |
| 713-587 | AT&T | HOUSTON | – | yes | yes |
| 713-588 | AT&T | HOUSTON | – | yes | yes |
| 713-589 | AT&T | HOUSTON | – | yes | yes |
| 713-590 | TPx | HOUSTON | – | – | yes |
| 713-591 | AT&T | HOUSTON | – | yes | yes |
| 713-592 | AT&T | HOUSTON | – | yes | yes |
| 713-593 | Spok | HOUSTON | – | – | yes |
| 713-594 | AT&T | HOUSTON | – | – | yes |
| 713-595 | TPx | HOUSTON | – | – | yes |
| 713-596 | AT&T | HOUSTON | – | – | yes |
| 713-597 | Onvoy | HOUSTON | 2014-01-22 | yes | yes |
| 713-598 | AT&T | HOUSTON | – | – | yes |
| 713-599 | AT&T | HOUSTON | – | – | yes |
| 713-600 | Onvoy | HOUSTON | – | – | yes |
| 713-601 | Spok | HOUSTON | – | – | yes |
| 713-602 | AT&T | HOUSTON | – | – | yes |
| 713-603 | Spok | HOUSTON | – | – | yes |
| 713-604 | Spok | HOUSTON | – | – | yes |
| 713-605 | Spok | HOUSTON | – | – | yes |
| 713-606 | Spok | HOUSTON | – | – | yes |
| 713-607 | Spok | HOUSTON | – | – | yes |
| 713-608 | Spok | HOUSTON | – | – | yes |
| 713-609 | AT&T | HOUSTON | – | yes | yes |
| 713-610 | AT&T | HOUSTON | – | – | yes |
| 713-612 | TELETOUCH COMMUNICATIONS, INC. | HOUSTON | – | – | yes |
| 713-613 | AT&T | HOUSTON | – | yes | yes |
| 713-614 | AT&T | HOUSTON | – | – | yes |
| 713-615 | AT&T | HOUSTON | – | – | yes |
| 713-616 | Spok | HOUSTON | – | – | yes |
| 713-617 | Spok | HOUSTON | – | – | yes |
| 713-618 | Spok | HOUSTON | – | – | yes |
| 713-619 | Spok | HOUSTON | – | – | yes |
| 713-620 | AT&T | HOUSTON | – | yes | yes |
| 713-621 | AT&T | HOUSTON | – | – | yes |
| 713-622 | AT&T | HOUSTON | – | – | yes |
| 713-623 | AT&T | HOUSTON | – | yes | yes |
| 713-624 | AT&T | HOUSTON | – | yes | yes |
| 713-625 | AT&T | HOUSTON | – | – | yes |
| 713-626 | AT&T | HOUSTON | – | – | yes |
| 713-627 | AT&T | HOUSTON | – | – | yes |
| 713-628 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-629 | AT&T | HOUSTON | – | – | yes |
| 713-630 | AT&T | HOUSTON | – | yes | yes |
| 713-631 | AT&T | HOUSTON | – | yes | yes |
| 713-632 | AT&T | HOUSTON | – | yes | yes |
| 713-633 | AT&T | HOUSTON | – | – | yes |
| 713-634 | AT&T | HOUSTON | – | yes | yes |
| 713-635 | AT&T | HOUSTON | – | yes | yes |
| 713-636 | AT&T | HOUSTON | – | yes | yes |
| 713-637 | AT&T | HOUSTON | – | yes | yes |
| 713-638 | AT&T | HOUSTON | – | – | yes |
| 713-639 | AT&T | HOUSTON | – | – | yes |
| 713-640 | AT&T | HOUSTON | – | yes | yes |
| 713-641 | AT&T | HOUSTON | – | – | yes |
| 713-642 | Spok | HOUSTON | – | – | yes |
| 713-643 | AT&T | HOUSTON | – | – | yes |
| 713-644 | AT&T | HOUSTON | – | – | yes |
| 713-645 | AT&T | HOUSTON | – | – | yes |
| 713-646 | AT&T | HOUSTON | – | – | yes |
| 713-647 | AT&T | HOUSTON | – | yes | yes |
| 713-648 | Spok | HOUSTON | – | – | yes |
| 713-649 | AT&T | HOUSTON | – | – | yes |
| 713-650 | AT&T | HOUSTON | – | – | yes |
| 713-651 | AT&T | HOUSTON | – | – | yes |
| 713-652 | AT&T | HOUSTON | – | yes | yes |
| 713-653 | AT&T | HOUSTON | – | yes | yes |
| 713-654 | AT&T | HOUSTON | – | – | yes |
| 713-655 | AT&T | HOUSTON | – | – | yes |
| 713-656 | AT&T | HOUSTON | – | – | yes |
| 713-657 | AT&T | HOUSTON | – | yes | yes |
| 713-658 | AT&T | HOUSTON | – | yes | yes |
| 713-659 | AT&T | HOUSTON | – | yes | yes |
| 713-660 | AT&T | HOUSTON | – | yes | yes |
| 713-661 | AT&T | HOUSTON | – | – | yes |
| 713-662 | AT&T | HOUSTON | – | – | yes |
| 713-663 | AT&T | HOUSTON | – | – | yes |
| 713-664 | AT&T | HOUSTON | – | – | yes |
| 713-665 | AT&T | HOUSTON | – | yes | yes |
| 713-666 | AT&T | HOUSTON | – | – | yes |
| 713-667 | AT&T | HOUSTON | – | – | yes |
| 713-668 | AT&T | HOUSTON | – | – | yes |
| 713-669 | AT&T | HOUSTON | – | – | yes |
| 713-670 | AT&T | HOUSTON | – | yes | yes |
| 713-671 | AT&T | HOUSTON | – | – | yes |
| 713-672 | AT&T | HOUSTON | – | – | yes |
| 713-673 | AT&T | HOUSTON | – | yes | yes |
| 713-674 | AT&T | HOUSTON | – | – | yes |
| 713-675 | AT&T | HOUSTON | – | – | yes |
| 713-676 | AT&T | HOUSTON | – | – | yes |
| 713-677 | AT&T | HOUSTON | – | yes | yes |
| 713-678 | AT&T | HOUSTON | – | yes | yes |
| 713-679 | AT&T | HOUSTON | – | yes | yes |
| 713-680 | AT&T | HOUSTON | – | – | yes |
| 713-681 | AT&T | HOUSTON | – | – | yes |
| 713-682 | AT&T | HOUSTON | – | yes | yes |
| 713-683 | AT&T | HOUSTON | – | – | yes |
| 713-684 | AT&T | HOUSTON | – | yes | yes |
| 713-685 | AT&T | HOUSTON | – | – | yes |
| 713-686 | AT&T | HOUSTON | – | – | yes |
| 713-687 | Spok | HOUSTON | – | – | yes |
| 713-688 | AT&T | HOUSTON | – | – | yes |
| 713-689 | AT&T | HOUSTON | – | yes | yes |
| 713-690 | AT&T | HOUSTON | – | – | yes |
| 713-691 | AT&T | HOUSTON | – | yes | yes |
| 713-692 | AT&T | HOUSTON | – | – | yes |
| 713-693 | AT&T | HOUSTON | – | – | yes |
| 713-694 | AT&T | HOUSTON | – | – | yes |
| 713-695 | AT&T | HOUSTON | – | – | yes |
| 713-696 | AT&T | HOUSTON | – | yes | yes |
| 713-697 | AT&T | HOUSTON | – | – | yes |
| 713-698 | Spok | HOUSTON | – | – | yes |
| 713-699 | AT&T | HOUSTON | – | – | yes |
| 713-701 | AT&T | HOUSTON | – | yes | yes |
| 713-702 | Verizon | HOUSTON | – | – | yes |
| 713-703 | Verizon | HOUSTON | – | – | yes |
| 713-704 | AT&T | HOUSTON | – | – | yes |
| 713-705 | Verizon | HOUSTON | – | – | yes |
| 713-706 | AT&T | HOUSTON | – | – | yes |
| 713-707 | Spok | HOUSTON | – | – | yes |
| 713-708 | Spok | HOUSTON | – | – | yes |
| 713-709 | Spok | HOUSTON | – | – | yes |
| 713-710 | Spok | HOUSTON | – | – | yes |
| 713-712 | Spok | HOUSTON | – | – | yes |
| 713-713 | USFON, INC. - TX | HOUSTON | 2023-01-06 | yes | yes |
| 713-714 | Comcast | HOUSTON | 2011-05-27 | yes | yes |
| 713-715 | AT&T | HOUSTON | – | yes | yes |
| 713-716 | Spok | HOUSTON | – | – | yes |
| 713-717 | Spok | HOUSTON | – | – | yes |
| 713-718 | AT&T | HOUSTON | – | – | yes |
| 713-719 | Spok | HOUSTON | – | – | yes |
| 713-720 | Spok | HOUSTON | – | – | yes |
| 713-721 | AT&T | HOUSTON | – | – | yes |
| 713-722 | AT&T | HOUSTON | – | – | yes |
| 713-723 | AT&T | HOUSTON | – | – | yes |
| 713-724 | Verizon | HOUSTON | – | – | yes |
| 713-725 | Verizon | HOUSTON | – | – | yes |
| 713-726 | AT&T | HOUSTON | – | yes | yes |
| 713-728 | AT&T | HOUSTON | – | yes | yes |
| 713-729 | AT&T | HOUSTON | – | – | yes |
| 713-730 | AT&T | HOUSTON | – | yes | yes |
| 713-731 | AT&T | HOUSTON | 2001-04-19 | yes | yes |
| 713-732 | AT&T | HOUSTON | 2001-04-19 | yes | yes |
| 713-733 | AT&T | HOUSTON | 2001-04-19 | – | yes |
| 713-734 | AT&T | HOUSTON | 2001-04-19 | – | yes |
| 713-735 | AT&T | HOUSTON | – | – | yes |
| 713-736 | Spok | HOUSTON | – | – | yes |
| 713-737 | AT&T | HOUSTON | – | yes | yes |
| 713-738 | AT&T | HOUSTON | 2001-04-19 | – | yes |
| 713-739 | AT&T | HOUSTON | – | yes | yes |
| 713-740 | AT&T | HOUSTON | – | – | yes |
| 713-741 | AT&T | HOUSTON | – | – | yes |
| 713-742 | AT&T | HOUSTON | – | yes | yes |
| 713-743 | AT&T | HOUSTON | – | – | yes |
| 713-744 | AT&T | HOUSTON | – | – | yes |
| 713-745 | AT&T | HOUSTON | – | – | yes |
| 713-746 | AT&T | HOUSTON | – | – | yes |
| 713-747 | AT&T | HOUSTON | – | – | yes |
| 713-748 | AT&T | HOUSTON | – | yes | yes |
| 713-749 | AT&T | HOUSTON | – | – | yes |
| 713-750 | AT&T | HOUSTON | – | yes | yes |
| 713-751 | AT&T | HOUSTON | – | yes | yes |
| 713-752 | AT&T | HOUSTON | – | – | yes |
| 713-753 | AT&T | HOUSTON | – | – | yes |
| 713-754 | AT&T | HOUSTON | – | yes | yes |
| 713-755 | AT&T | HOUSTON | – | – | yes |
| 713-756 | AT&T | HOUSTON | – | – | yes |
| 713-757 | AT&T | HOUSTON | – | yes | yes |
| 713-758 | AT&T | HOUSTON | – | yes | yes |
| 713-759 | AT&T | HOUSTON | – | – | yes |
| 713-760 | Spok | HOUSTON | – | – | yes |
| 713-761 | Spok | HOUSTON | – | – | yes |
| 713-762 | Spok | HOUSTON | – | – | yes |
| 713-763 | Spok | HOUSTON | – | – | yes |
| 713-764 | Spok | HOUSTON | – | – | yes |
| 713-765 | Spok | HOUSTON | – | – | yes |
| 713-766 | Lumen | HOUSTON | 2013-08-27 | yes | yes |
| 713-767 | AT&T | HOUSTON | – | – | yes |
| 713-768 | Spok | HOUSTON | – | – | yes |
| 713-769 | Charter | SPRING | 2024-02-21 | yes | yes |
| 713-770 | AT&T | HOUSTON | – | yes | yes |
| 713-771 | AT&T | HOUSTON | – | – | yes |
| 713-772 | AT&T | HOUSTON | – | – | yes |
| 713-773 | AT&T | HOUSTON | – | – | yes |
| 713-774 | AT&T | HOUSTON | – | – | yes |
| 713-775 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-776 | AT&T | HOUSTON | – | – | yes |
| 713-777 | AT&T | HOUSTON | – | – | yes |
| 713-778 | AT&T | HOUSTON | – | – | yes |
| 713-779 | AT&T | HOUSTON | – | yes | yes |
| 713-780 | AT&T | HOUSTON | – | – | yes |
| 713-781 | AT&T | HOUSTON | – | – | yes |
| 713-782 | AT&T | HOUSTON | – | – | yes |
| 713-783 | AT&T | HOUSTON | – | – | yes |
| 713-784 | AT&T | HOUSTON | – | – | yes |
| 713-785 | AT&T | HOUSTON | – | – | yes |
| 713-786 | Spok | HOUSTON | – | – | yes |
| 713-787 | AT&T | HOUSTON | – | – | yes |
| 713-788 | AT&T | HOUSTON | – | yes | yes |
| 713-789 | AT&T | HOUSTON | – | – | yes |
| 713-790 | AT&T | HOUSTON | – | – | yes |
| 713-791 | AT&T | HOUSTON | – | yes | yes |
| 713-792 | AT&T | HOUSTON | – | – | yes |
| 713-793 | AT&T | HOUSTON | – | yes | yes |
| 713-794 | AT&T | HOUSTON | – | yes | yes |
| 713-795 | AT&T | HOUSTON | – | – | yes |
| 713-796 | AT&T | HOUSTON | – | – | yes |
| 713-797 | AT&T | HOUSTON | – | yes | yes |
| 713-798 | AT&T | HOUSTON | – | – | yes |
| 713-799 | AT&T | HOUSTON | – | yes | yes |
| 713-800 | Onvoy | HOUSTON | – | – | yes |
| 713-801 | Spok | HOUSTON | – | – | yes |
| 713-802 | AT&T | HOUSTON | – | – | yes |
| 713-803 | AT&T | HOUSTON | – | yes | yes |
| 713-804 | Onvoy | HOUSTON | 2018-12-13 | yes | yes |
| 713-805 | Verizon | HOUSTON | – | – | yes |
| 713-806 | Verizon | HOUSTON | – | – | yes |
| 713-807 | AT&T | HOUSTON | – | yes | yes |
| 713-808 | AT&T | HOUSTON | – | yes | yes |
| 713-809 | Spok | HOUSTON | – | – | yes |
| 713-810 | Charter | TOMBALL | 2021-11-17 | yes | yes |
| 713-812 | AT&T | HOUSTON | – | – | yes |
| 713-813 | Spok | HOUSTON | – | – | yes |
| 713-814 | Lumen | HOUSTON | 2017-09-22 | yes | yes |
| 713-815 | Lumen | HOUSTON | 2012-09-26 | yes | yes |
| 713-816 | Verizon | HOUSTON | – | – | yes |
| 713-817 | Verizon | HOUSTON | – | – | yes |
| 713-818 | Verizon | HOUSTON | – | – | yes |
| 713-819 | Verizon | HOUSTON | – | – | yes |
| 713-820 | Verizon | HOUSTON | – | yes | yes |
| 713-821 | AT&T | HOUSTON | – | – | yes |
| 713-822 | AT&T | HOUSTON | – | – | yes |
| 713-823 | Verizon | HOUSTON | – | – | yes |
| 713-824 | Verizon | HOUSTON | – | – | yes |
| 713-825 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-826 | AT&T | HOUSTON | – | – | yes |
| 713-827 | AT&T | HOUSTON | – | – | yes |
| 713-828 | Verizon | HOUSTON | – | – | yes |
| 713-829 | Verizon | HOUSTON | – | – | yes |
| 713-830 | AT&T | HOUSTON | – | – | yes |
| 713-831 | AT&T | HOUSTON | – | – | yes |
| 713-832 | Onvoy | HOUSTON | 2022-07-19 | yes | yes |
| 713-833 | Spok | HOUSTON | – | – | yes |
| 713-834 | AT&T | HOUSTON | – | yes | yes |
| 713-835 | Verizon | HOUSTON | – | yes | yes |
| 713-836 | AT&T | HOUSTON | 2010-12-16 | yes | yes |
| 713-837 | AT&T | HOUSTON | – | yes | yes |
| 713-838 | AT&T | HOUSTON | – | yes | yes |
| 713-839 | AT&T | HOUSTON | – | yes | yes |
| 713-840 | AT&T | HOUSTON | – | – | yes |
| 713-841 | Spok | HOUSTON | – | – | yes |
| 713-842 | AT&T | HOUSTON | – | yes | yes |
| 713-843 | AT&T | HOUSTON | – | yes | yes |
| 713-844 | AT&T | HOUSTON | – | yes | yes |
| 713-845 | AT&T | HOUSTON | – | – | yes |
| 713-846 | Spok | HOUSTON | – | – | yes |
| 713-847 | AT&T | HOUSTON | – | – | yes |
| 713-848 | AT&T | HOUSTON | 2006-08-02 | yes | yes |
| 713-849 | AT&T | HSTNSUBURB | – | – | yes |
| 713-850 | AT&T | HOUSTON | – | – | yes |
| 713-851 | AT&T | HOUSTON | – | – | yes |
| 713-852 | AT&T | HOUSTON | – | yes | yes |
| 713-853 | AT&T | HOUSTON | – | yes | yes |
| 713-854 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-855 | T-Mobile | HOUSTON | 2005-04-18 | yes | yes |
| 713-856 | AT&T | HSTNSUBURB | – | – | yes |
| 713-857 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-858 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-859 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-860 | AT&T | HOUSTON | – | – | yes |
| 713-861 | AT&T | HOUSTON | – | – | yes |
| 713-862 | AT&T | HOUSTON | – | – | yes |
| 713-863 | AT&T | HOUSTON | – | yes | yes |
| 713-864 | AT&T | HOUSTON | – | – | yes |
| 713-865 | AT&T | HOUSTON | – | yes | yes |
| 713-866 | AT&T | HOUSTON | – | – | yes |
| 713-867 | AT&T | HOUSTON | – | – | yes |
| 713-868 | AT&T | HOUSTON | – | – | yes |
| 713-869 | AT&T | HOUSTON | – | – | yes |
| 713-870 | AT&T | HOUSTON | – | – | yes |
| 713-871 | AT&T | HOUSTON | – | – | yes |
| 713-872 | RICE TELECOM CORPORATION | HOUSTON | 2025-06-23 | yes | yes |
| 713-873 | AT&T | HOUSTON | – | yes | yes |
| 713-874 | AT&T | HOUSTON | – | yes | yes |
| 713-875 | T-Mobile | HOUSTON | – | yes | yes |
| 713-876 | AT&T | HOUSTON | – | – | yes |
| 713-877 | AT&T | HOUSTON | – | – | yes |
| 713-878 | AT&T | HOUSTON | – | yes | yes |
| 713-879 | AT&T | WESTFIELD | 2008-03-14 | yes | yes |
| 713-880 | AT&T | HOUSTON | – | – | yes |
| 713-881 | AT&T | HOUSTON | – | yes | yes |
| 713-882 | Verizon | HOUSTON | – | – | yes |
| 713-883 | Spok | HOUSTON | – | – | yes |
| 713-884 | AT&T | HOUSTON | – | yes | yes |
| 713-885 | AT&T | HOUSTON | – | yes | yes |
| 713-886 | Verizon | LANGHAMCRK | 2026-02-25 | yes | yes |
| 713-887 | Verizon | CYPRESS | 2023-06-08 | yes | yes |
| 713-888 | AT&T | HOUSTON | – | – | yes |
| 713-889 | AT&T | HOUSTON | 2004-10-07 | – | yes |
| 713-890 | AT&T | HOUSTON | – | yes | yes |
| 713-891 | Spok | HOUSTON | – | – | yes |
| 713-892 | AT&T | HOUSTON | – | yes | yes |
| 713-893 | Lumen | LEAGUECITY | – | yes | yes |
| 713-894 | T-Mobile | HOUSTON | – | – | yes |
| 713-895 | AT&T | HOUSTON | – | – | yes |
| 713-896 | AT&T | HSTNSUBURB | – | – | yes |
| 713-897 | AT&T | SPRING | 2009-01-20 | yes | yes |
| 713-898 | Verizon | HOUSTON | – | – | yes |
| 713-899 | Verizon | HOUSTON | – | – | yes |
| 713-900 | Lumen | HOUSTON | – | yes | yes |
| 713-901 | Spok | HOUSTON | – | – | yes |
| 713-902 | T-Mobile | SUGAR LAND | 2020-06-19 | yes | yes |
| 713-903 | Onvoy | BAYTOWN | 2019-02-05 | yes | yes |
| 713-904 | AT&T | HOUSTON | 2011-09-23 | yes | yes |
| 713-905 | Spok | HOUSTON | – | – | yes |
| 713-906 | Verizon | HOUSTON | – | – | yes |
| 713-907 | Verizon | HOUSTON | – | – | yes |
| 713-908 | American Messaging | HOUSTON | – | – | yes |
| 713-909 | AT&T | HSTNSUBURB | 2010-11-12 | yes | yes |
| 713-910 | AT&T | HOUSTON | – | – | yes |
| 713-912 | Charter | RICHMNRNBG | 2024-04-02 | yes | yes |
| 713-913 | Bandwidth | BARKER | 2020-08-14 | yes | yes |
| 713-914 | AT&T | HOUSTON | – | – | yes |
| 713-915 | Spok | HOUSTON | – | – | yes |
| 713-916 | Spok | HOUSTON | – | – | yes |
| 713-917 | AT&T | HOUSTON | – | – | yes |
| 713-918 | AT&T | HOUSTON | – | yes | yes |
| 713-919 | Charter | BROOKSHIRE | 2025-09-02 | yes | yes |
| 713-920 | AT&T | HOUSTON | – | yes | yes |
| 713-921 | AT&T | HOUSTON | – | – | yes |
| 713-922 | T-Mobile | HOUSTON | – | – | yes |
| 713-923 | AT&T | HOUSTON | – | yes | yes |
| 713-924 | AT&T | HOUSTON | – | yes | yes |
| 713-925 | Charter | HOUSTON | 2022-07-15 | yes | yes |
| 713-926 | AT&T | HOUSTON | – | yes | yes |
| 713-927 | T-Mobile | HOUSTON | – | yes | yes |
| 713-928 | AT&T | HOUSTON | – | yes | yes |
| 713-929 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | HOUSTON | 2005-08-19 | yes | yes |
| 713-930 | Onvoy | HOUSTON | 2020-12-08 | yes | yes |
| 713-931 | Onvoy | HOUSTON | 2007-05-04 | yes | yes |
| 713-932 | AT&T | HOUSTON | – | – | yes |
| 713-933 | Onvoy | HOUSTON | – | yes | yes |
| 713-934 | AT&T | HOUSTON | – | – | yes |
| 713-935 | AT&T | HOUSTON | – | yes | yes |
| 713-936 | Onvoy | HOUSTON | 2007-09-19 | yes | yes |
| 713-937 | AT&T | HSTNSUBURB | – | – | yes |
| 713-938 | Charter | LANGHAMCRK | 2025-09-02 | yes | yes |
| 713-939 | AT&T | HOUSTON | – | – | yes |
| 713-940 | AT&T | HOUSTON | – | yes | yes |
| 713-941 | AT&T | HOUSTON | – | yes | yes |
| 713-942 | AT&T | HOUSTON | – | – | yes |
| 713-943 | AT&T | HOUSTON | – | – | yes |
| 713-944 | AT&T | HOUSTON | – | – | yes |
| 713-945 | AT&T | HOUSTON | – | – | yes |
| 713-946 | AT&T | HOUSTON | – | – | yes |
| 713-947 | AT&T | HOUSTON | – | – | yes |
| 713-948 | AT&T | HOUSTON | – | – | yes |
| 713-949 | Charter | RICHMNRNBG | 2025-09-02 | yes | yes |
| 713-951 | AT&T | HOUSTON | – | – | yes |
| 713-952 | AT&T | HOUSTON | – | – | yes |
| 713-953 | AT&T | HOUSTON | – | – | yes |
| 713-954 | AT&T | HOUSTON | – | – | yes |
| 713-955 | Peerless | HOUSTON | 2011-04-14 | yes | yes |
| 713-956 | AT&T | HOUSTON | – | – | yes |
| 713-957 | AT&T | HOUSTON | – | yes | yes |
| 713-960 | AT&T | HOUSTON | – | yes | yes |
| 713-961 | AT&T | HOUSTON | – | – | yes |
| 713-962 | AT&T | HOUSTON | 2001-05-08 | – | yes |
| 713-963 | AT&T | HOUSTON | – | – | yes |
| 713-964 | AT&T | HOUSTON | – | – | yes |
| 713-965 | AT&T | HOUSTON | – | yes | yes |
| 713-966 | AT&T | HOUSTON | – | yes | yes |
| 713-967 | AT&T | HOUSTON | – | – | yes |
| 713-968 | AT&T | HOUSTON | – | – | yes |
| 713-969 | AT&T | HOUSTON | – | yes | yes |
| 713-970 | AT&T | HOUSTON | – | yes | yes |
| 713-971 | Spok | HOUSTON | – | – | yes |
| 713-972 | AT&T | HOUSTON | – | yes | yes |
| 713-973 | AT&T | HOUSTON | – | – | yes |
| 713-974 | AT&T | HOUSTON | – | – | yes |
| 713-975 | AT&T | HOUSTON | – | – | yes |
| 713-977 | AT&T | HOUSTON | – | – | yes |
| 713-978 | AT&T | HOUSTON | – | yes | yes |
| 713-979 | Onvoy | HOUSTON | – | yes | yes |
| 713-980 | Onvoy | HOUSTON | – | – | yes |
| 713-981 | AT&T | HOUSTON | – | – | yes |
| 713-982 | AT&T | HOUSTON | – | – | yes |
| 713-983 | AT&T | HSTNSUBURB | – | – | yes |
| 713-984 | AT&T | HOUSTON | – | yes | yes |
| 713-985 | AT&T | HOUSTON | – | yes | yes |
| 713-986 | AT&T | HOUSTON | – | – | yes |
| 713-987 | AT&T | HOUSTON | – | yes | yes |
| 713-988 | AT&T | HOUSTON | – | – | yes |
| 713-989 | AT&T | HOUSTON | – | – | yes |
| 713-990 | Spok | HOUSTON | – | – | yes |
| 713-991 | AT&T | HOUSTON | – | – | yes |
| 713-992 | T-Mobile | SPRING | – | yes | yes |
| 713-993 | AT&T | HOUSTON | – | yes | yes |
| 713-994 | AT&T | HOUSTON | – | – | yes |
| 713-995 | AT&T | HOUSTON | – | – | yes |
| 713-996 | AT&T | HOUSTON | – | – | yes |
| 713-997 | AT&T | HOUSTON | 2011-09-07 | yes | yes |
| 713-998 | T-Mobile | HSTNSUBURB | 2012-01-18 | yes | yes |
| 713-999 | Lumen | HUFFMAN | 2009-03-16 | yes | yes |
Frequently asked
How many prefixes does area code 713 have?
785 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,850 thousand-number ranges across 19 rate centers.
What do the first three digits after 713 tell me?
They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.
Is a 713 prefix tied to a specific town?
To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.
What does “pooled” mean in the 713 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 338 of 713's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.
Source and limits
NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.
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