Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 972 prefixes
785 of the 786 possible NXX blocks are assigned in area code 972 (99.9% of capacity), spread across 43 rate centers and 32 holders. The largest holders are SOUTHWESTERN BELL (306 blocks, 39.0%), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (183 blocks, 23.3%), NEW CINGULAR WIRELESS PCS, LLC - IL (58 blocks, 7.4%). Grouped by brand, AT&T accounts for 404 blocks; brand-attributable holders cover 96% 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 2001-04-19 to 2025-12-29, with 11 blocks handed out in 2005 alone. 442 blocks (56%) 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. 27 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
785 assigned blocks of 786
43 rate centers
32 holders of record
56% in thousands-block pooling
Largest holders in 972
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 306 | 39% |
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | Frontier | 183 | 23.3% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 58 | 7.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 55 | 7% |
| ONVOY, LLC - TX | Onvoy | 24 | 3.1% |
| SPOK, INC. | Spok | 20 | 2.5% |
| GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | 19 | 2.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | AT&T | 18 | 2.3% |
| SOUTHWESTERN BELL TELEPHONE COMPANY - TX | AT&T | 17 | 2.2% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | Lumen | 16 | 2% |
| LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | Lumen | 14 | 1.8% |
| T-MOBILE USA, INC. | T-Mobile | 14 | 1.8% |
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 |
|---|---|---|---|---|---|
| 972-200 | Lumen | SEAGOVILLE | 2002-12-19 | yes | yes |
| 972-201 | Verizon | DALLAS | – | yes | yes |
| 972-202 | AT&T | PLANO | – | yes | yes |
| 972-203 | AT&T | DALLAS | – | yes | yes |
| 972-204 | AT&T | DALLAS | – | yes | yes |
| 972-205 | Frontier | PLANO | – | – | yes |
| 972-206 | AT&T | GRANDPRARI | – | yes | yes |
| 972-207 | AT&T | GRANDPRARI | 2005-01-07 | yes | yes |
| 972-208 | Frontier | PLANO | – | – | yes |
| 972-209 | AT&T | GRANDPRARI | 2020-03-26 | yes | yes |
| 972-210 | TPx | TERRELL | – | yes | yes |
| 972-212 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | PLANO | – | yes | yes |
| 972-213 | Verizon | GRANDPRARI | – | yes | yes |
| 972-214 | AT&T | FRISCO | – | yes | yes |
| 972-215 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | IRVING | – | yes | yes |
| 972-216 | AT&T | DALLAS | – | yes | yes |
| 972-217 | AT&T | DE SOTO | – | yes | yes |
| 972-218 | AT&T | DALLAS | – | yes | yes |
| 972-219 | Frontier | LEWISVILLE | – | – | yes |
| 972-220 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | DALLAS | – | yes | yes |
| 972-221 | Frontier | LEWISVILLE | – | – | yes |
| 972-222 | AT&T | DALLAS | – | – | yes |
| 972-223 | AT&T | DE SOTO | – | – | yes |
| 972-224 | AT&T | DALLAS | – | – | yes |
| 972-225 | AT&T | DALLAS | – | – | yes |
| 972-226 | AT&T | DALLAS | – | – | yes |
| 972-227 | AT&T | DALLAS | – | – | yes |
| 972-228 | AT&T | DALLAS | – | – | yes |
| 972-229 | Spok | GRANDPRARI | – | – | yes |
| 972-230 | AT&T | DE SOTO | – | – | yes |
| 972-231 | AT&T | DALLAS | – | – | yes |
| 972-232 | Verizon | DALLAS | – | yes | yes |
| 972-233 | AT&T | DALLAS | – | – | yes |
| 972-234 | AT&T | DALLAS | – | – | yes |
| 972-235 | AT&T | DALLAS | – | – | yes |
| 972-236 | AT&T | CARROLLTON | – | yes | yes |
| 972-237 | AT&T | GRANDPRARI | – | – | yes |
| 972-238 | AT&T | DALLAS | – | – | yes |
| 972-239 | AT&T | DALLAS | – | – | yes |
| 972-240 | Frontier | PLANO | – | – | yes |
| 972-241 | AT&T | DALLAS | – | – | yes |
| 972-242 | Frontier | CARROLLTON | – | – | yes |
| 972-243 | AT&T | DALLAS | – | – | yes |
| 972-244 | AT&T | PLANO | – | yes | yes |
| 972-245 | Frontier | CARROLLTON | – | – | yes |
| 972-246 | AT&T | DALLAS | – | yes | yes |
| 972-247 | AT&T | DALLAS | – | – | yes |
| 972-248 | AT&T | DALLAS | – | – | yes |
| 972-249 | Verizon | GRANDPRARI | – | yes | yes |
| 972-250 | AT&T | DALLAS | – | – | yes |
| 972-251 | Frontier | IRVING | – | yes | yes |
| 972-252 | Frontier | IRVING | – | – | yes |
| 972-253 | Frontier | IRVING | – | – | yes |
| 972-254 | Frontier | IRVING | – | – | yes |
| 972-255 | Frontier | IRVING | – | – | yes |
| 972-256 | Frontier | IRVING | – | yes | yes |
| 972-257 | Frontier | IRVING | – | – | yes |
| 972-258 | Frontier | IRVING | – | – | yes |
| 972-259 | Frontier | IRVING | – | yes | yes |
| 972-260 | AT&T | GRANDPRARI | – | – | yes |
| 972-261 | Frontier | IRVING | – | yes | yes |
| 972-262 | AT&T | GRANDPRARI | – | – | yes |
| 972-263 | AT&T | GRANDPRARI | – | – | yes |
| 972-264 | AT&T | GRANDPRARI | – | – | yes |
| 972-265 | Lumen | PLANO | – | yes | yes |
| 972-266 | AT&T | GRANDPRARI | – | yes | yes |
| 972-267 | AT&T | DALLAS | – | yes | yes |
| 972-268 | Onvoy | WAXAHACHIE | – | yes | yes |
| 972-269 | AT&T | GRANDPRARI | – | yes | yes |
| 972-270 | AT&T | DALLAS | – | – | yes |
| 972-271 | Frontier | PLANO | – | – | yes |
| 972-272 | Frontier | PLANO | – | – | yes |
| 972-273 | Frontier | IRVING | – | yes | yes |
| 972-274 | AT&T | DE SOTO | – | – | yes |
| 972-275 | AT&T | DALLAS | – | yes | yes |
| 972-276 | Frontier | PLANO | – | – | yes |
| 972-277 | AT&T | DALLAS | – | yes | yes |
| 972-278 | Frontier | PLANO | – | – | yes |
| 972-279 | AT&T | DALLAS | – | – | yes |
| 972-280 | AT&T | DALLAS | – | yes | yes |
| 972-281 | Frontier | IRVING | – | yes | yes |
| 972-282 | AT&T | GRANDPRARI | – | yes | yes |
| 972-283 | AT&T | DALLAS | – | – | yes |
| 972-284 | AT&T | DALLAS | – | yes | yes |
| 972-285 | AT&T | DALLAS | – | – | yes |
| 972-286 | AT&T | DALLAS | – | – | yes |
| 972-287 | AT&T | SEAGOVILLE | – | – | yes |
| 972-288 | AT&T | DALLAS | – | – | yes |
| 972-289 | AT&T | DALLAS | – | – | yes |
| 972-290 | AT&T | DALLAS | – | yes | yes |
| 972-291 | AT&T | CEDAR HILL | – | – | yes |
| 972-292 | AT&T | FRISCO | – | yes | yes |
| 972-293 | AT&T | CEDAR HILL | – | – | yes |
| 972-294 | AT&T | FRISCO | – | yes | yes |
| 972-295 | Frontier | PLANO | – | yes | yes |
| 972-296 | AT&T | DALLAS | – | – | yes |
| 972-297 | Spok | GRANDPRARI | – | – | yes |
| 972-298 | AT&T | DALLAS | – | – | yes |
| 972-299 | AT&T | CEDAR HILL | – | yes | yes |
| 972-300 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | CARROLLTON | – | – | yes |
| 972-301 | AT&T | DALLAS | – | yes | yes |
| 972-302 | T-Mobile | MCKINNEY | – | yes | yes |
| 972-303 | Frontier | PLANO | – | yes | yes |
| 972-304 | Frontier | LEWISVILLE | – | – | yes |
| 972-305 | TELETOUCH COMMUNICATIONS, INC. | GRANDPRARI | – | – | yes |
| 972-306 | Frontier | CARROLLTON | – | – | yes |
| 972-307 | Frontier | CARROLLTON | – | – | yes |
| 972-308 | AT&T | DALLAS | – | yes | yes |
| 972-309 | AT&T | PLANO | – | yes | yes |
| 972-310 | AT&T | GRANDPRARI | 2004-09-10 | yes | yes |
| 972-312 | AT&T | PLANO | – | yes | yes |
| 972-313 | Frontier | IRVING | – | yes | yes |
| 972-314 | Onvoy | GRANDPRARI | – | yes | yes |
| 972-315 | Frontier | LEWISVILLE | – | – | yes |
| 972-316 | Frontier | LEWISVILLE | – | yes | yes |
| 972-317 | Frontier | LEWISVILLE | – | – | yes |
| 972-318 | Frontier | LEWISVILLE | – | yes | yes |
| 972-319 | Spok | GRANDPRARI | – | – | yes |
| 972-320 | Spok | GRANDPRARI | – | – | yes |
| 972-321 | Spok | GRANDPRARI | – | – | yes |
| 972-322 | AT&T | GRANDPRARI | – | – | yes |
| 972-323 | Frontier | CARROLLTON | – | – | yes |
| 972-324 | Verizon | FRISCO | 2017-05-18 | yes | yes |
| 972-325 | Lumen | SEAGOVILLE | 2005-09-21 | yes | yes |
| 972-326 | Spok | IRVING | – | – | yes |
| 972-327 | T-Mobile | TERRELL | 2020-12-22 | yes | yes |
| 972-328 | E. RITTER COMMUNICATIONS, LLC | DALLAS | 2025-12-29 | yes | yes |
| 972-329 | AT&T | DALLAS | – | – | yes |
| 972-330 | Onvoy | ENNIS | – | yes | yes |
| 972-331 | Onvoy | DALLAS | – | – | yes |
| 972-332 | AT&T | ALLEN | – | yes | yes |
| 972-333 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-334 | AT&T | FRISCO | – | – | yes |
| 972-335 | AT&T | FRISCO | – | – | yes |
| 972-336 | AT&T | GRANDPRARI | – | yes | yes |
| 972-337 | AT&T | GRANDPRARI | – | – | yes |
| 972-338 | AT&T | DALLAS | – | yes | yes |
| 972-339 | AT&T | GRANDPRARI | – | yes | yes |
| 972-340 | AT&T | DALLAS | – | – | yes |
| 972-341 | AT&T | DALLAS | – | yes | yes |
| 972-342 | AT&T | GRANDPRARI | – | – | yes |
| 972-343 | AT&T | GRANDPRARI | – | yes | yes |
| 972-344 | AT&T | DALLAS | – | – | yes |
| 972-345 | AT&T | GRANDPRARI | – | – | yes |
| 972-346 | AT&T | PROSPER | – | yes | yes |
| 972-347 | AT&T | PROSPER | – | yes | yes |
| 972-348 | AT&T | DALLAS | – | yes | yes |
| 972-349 | AT&T | DALLAS | – | yes | yes |
| 972-350 | Lumen | LEWISVILLE | – | yes | yes |
| 972-351 | AT&T | WAXAHACHIE | 2001-04-19 | yes | yes |
| 972-352 | AT&T | GRANDPRARI | – | yes | yes |
| 972-353 | Frontier | LEWISVILLE | – | – | yes |
| 972-354 | TPx | DALLAS | – | – | yes |
| 972-355 | Frontier | LEWISVILLE | – | – | yes |
| 972-356 | Spok | GRANDPRARI | – | – | yes |
| 972-357 | Onvoy | FORNEY | – | yes | yes |
| 972-358 | Verizon | GRANDPRARI | 2004-08-02 | yes | yes |
| 972-359 | AT&T | ALLEN | – | yes | yes |
| 972-360 | AT&T | CARROLLTON | – | yes | yes |
| 972-361 | AT&T | DALLAS | – | – | yes |
| 972-362 | AT&T | DALLAS | – | yes | yes |
| 972-363 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | MCKINNEY | – | yes | yes |
| 972-364 | AT&T | DALLAS | – | yes | yes |
| 972-365 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-366 | Frontier | VENUS | – | yes | yes |
| 972-367 | Verizon | DALLAS | – | – | yes |
| 972-368 | AT&T | DALLAS | – | – | yes |
| 972-369 | AT&T | MCKINNEY | – | yes | yes |
| 972-370 | AT&T | FRISCO | – | yes | yes |
| 972-371 | AT&T | DALLAS | – | yes | yes |
| 972-372 | Verizon | PLANO | – | yes | yes |
| 972-373 | AT&T | DALLAS | – | yes | yes |
| 972-374 | Verizon | IRVING | – | yes | yes |
| 972-375 | Verizon | GRANDPRARI | – | yes | yes |
| 972-376 | AT&T | DALLAS | – | – | yes |
| 972-377 | AT&T | FRISCO | – | – | yes |
| 972-378 | Frontier | PLANO | – | – | yes |
| 972-379 | Frontier | PLANO | – | yes | yes |
| 972-380 | AT&T | DALLAS | – | – | yes |
| 972-381 | AT&T | DALLAS | – | yes | yes |
| 972-382 | AT&T | CELINA | – | yes | yes |
| 972-383 | AT&T | DALLAS | – | yes | yes |
| 972-384 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | PLANO | – | – | yes |
| 972-385 | AT&T | DALLAS | – | – | yes |
| 972-386 | AT&T | DALLAS | – | – | yes |
| 972-387 | AT&T | DALLAS | – | – | yes |
| 972-388 | AT&T | DALLAS | – | yes | yes |
| 972-389 | Frontier | CARROLLTON | – | – | yes |
| 972-390 | AT&T | ALLEN | – | – | yes |
| 972-391 | AT&T | DALLAS | – | yes | yes |
| 972-392 | AT&T | DALLAS | – | – | yes |
| 972-393 | Frontier | LEWISVILLE | – | – | yes |
| 972-394 | Frontier | CARROLLTON | – | – | yes |
| 972-395 | Frontier | CARROLLTON | – | yes | yes |
| 972-396 | AT&T | ALLEN | – | – | yes |
| 972-397 | Spok | GRANDPRARI | – | – | yes |
| 972-398 | AT&T | PLANO | – | – | yes |
| 972-399 | Frontier | IRVING | – | yes | yes |
| 972-400 | AT&T | GRANDPRARI | 2006-05-22 | yes | yes |
| 972-401 | AT&T | DALLAS | – | – | yes |
| 972-402 | AT&T | DALLAS | – | yes | yes |
| 972-403 | Frontier | PLANO | – | yes | yes |
| 972-404 | AT&T | DALLAS | – | yes | yes |
| 972-405 | AT&T | DALLAS | – | – | yes |
| 972-406 | AT&T | DALLAS | – | – | yes |
| 972-407 | AT&T | DALLAS | – | – | yes |
| 972-408 | Verizon | GRANDPRARI | – | yes | yes |
| 972-409 | AT&T | DALLAS | – | – | yes |
| 972-410 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | LEWISVILLE | – | – | yes |
| 972-412 | Frontier | PLANO | – | – | yes |
| 972-413 | Frontier | IRVING | – | yes | yes |
| 972-414 | Frontier | PLANO | – | – | yes |
| 972-415 | AT&T | GRANDPRARI | 2004-09-10 | yes | yes |
| 972-416 | Frontier | CARROLLTON | – | – | yes |
| 972-417 | Frontier | CARROLLTON | – | – | yes |
| 972-418 | Frontier | CARROLLTON | – | – | yes |
| 972-419 | AT&T | DALLAS | – | – | yes |
| 972-420 | Frontier | LEWISVILLE | – | – | yes |
| 972-421 | Lumen | DALLAS | – | yes | yes |
| 972-422 | Frontier | PLANO | – | – | yes |
| 972-423 | Frontier | PLANO | – | – | yes |
| 972-424 | Frontier | PLANO | – | – | yes |
| 972-425 | Frontier | DLFTWTARPT | – | – | yes |
| 972-426 | Lumen | DLFTWTARPT | – | yes | yes |
| 972-427 | AT&T | CRANDALL | – | yes | yes |
| 972-428 | Lumen | CARROLLTON | – | yes | yes |
| 972-429 | Frontier | PLANO | – | – | yes |
| 972-430 | Lumen | BLUE RIDGE | 2016-09-26 | yes | yes |
| 972-431 | Lumen | PLANO | – | yes | yes |
| 972-432 | AT&T | DALLAS | – | yes | yes |
| 972-433 | AT&T | PROSPER | 2017-05-22 | yes | yes |
| 972-434 | Frontier | LEWISVILLE | – | – | yes |
| 972-435 | Frontier | MAYPEARL | – | yes | yes |
| 972-436 | Frontier | LEWISVILLE | – | – | yes |
| 972-437 | AT&T | DALLAS | – | yes | yes |
| 972-438 | Frontier | IRVING | – | – | yes |
| 972-439 | Verizon | MCKINNEY | – | yes | yes |
| 972-440 | Onvoy | CARROLLTON | – | yes | yes |
| 972-441 | Frontier | WILMER | – | yes | yes |
| 972-442 | Frontier | PLANO | – | – | yes |
| 972-443 | AT&T | DALLAS | – | – | yes |
| 972-444 | AT&T | DALLAS | – | – | yes |
| 972-445 | Frontier | IRVING | – | yes | yes |
| 972-446 | Frontier | CARROLLTON | – | – | yes |
| 972-447 | AT&T | DALLAS | – | yes | yes |
| 972-448 | AT&T | DALLAS | – | – | yes |
| 972-449 | Frontier | PALMER | – | yes | yes |
| 972-450 | AT&T | DALLAS | – | – | yes |
| 972-451 | Spok | GRANDPRARI | – | – | yes |
| 972-452 | Windstream | SCURRY | – | yes | yes |
| 972-453 | Frontier | DLFTWTARPT | – | yes | yes |
| 972-454 | AT&T | DALLAS | – | yes | yes |
| 972-455 | AT&T | DALLAS | – | yes | yes |
| 972-456 | Frontier | DLFTWTARPT | – | yes | yes |
| 972-457 | Onvoy | IRVING | – | yes | yes |
| 972-458 | AT&T | DALLAS | – | yes | yes |
| 972-459 | Frontier | LEWISVILLE | – | yes | yes |
| 972-460 | Onvoy | CEDAR HILL | – | yes | yes |
| 972-461 | Frontier | PLANO | – | – | yes |
| 972-462 | Frontier | LEWISVILLE | – | yes | yes |
| 972-463 | Frontier | PLANO | – | – | yes |
| 972-464 | Lumen | FRISCO | – | yes | yes |
| 972-465 | Frontier | IRVING | – | yes | yes |
| 972-466 | Frontier | CARROLLTON | – | – | yes |
| 972-467 | AT&T | GRANDPRARI | – | – | yes |
| 972-468 | Frontier | PLANO | – | yes | yes |
| 972-469 | TPx | FRISCO | 2016-07-11 | yes | yes |
| 972-470 | AT&T | DALLAS | – | yes | yes |
| 972-471 | Frontier | LEWISVILLE | – | yes | yes |
| 972-472 | AT&T | CRANDALL | – | yes | yes |
| 972-473 | Frontier | PLANO | – | – | yes |
| 972-474 | AT&T | COMBINE | – | yes | yes |
| 972-475 | Frontier | PLANO | – | – | yes |
| 972-476 | AT&T | COMBINE | – | yes | yes |
| 972-477 | AT&T | PLANO | – | yes | yes |
| 972-478 | Frontier | CARROLLTON | – | yes | yes |
| 972-479 | AT&T | DALLAS | – | yes | yes |
| 972-480 | AT&T | DALLAS | – | yes | yes |
| 972-481 | AT&T | DALLAS | – | yes | yes |
| 972-482 | Verizon | GRANDPRARI | 2017-11-30 | yes | yes |
| 972-483 | AT&T | ITALY | – | yes | yes |
| 972-484 | AT&T | DALLAS | – | – | yes |
| 972-485 | Frontier | PLANO | – | – | yes |
| 972-486 | Windstream | SCURRY | – | yes | yes |
| 972-487 | Frontier | PLANO | – | – | yes |
| 972-488 | AT&T | DALLAS | – | yes | yes |
| 972-489 | AT&T | GRANDPRARI | – | – | yes |
| 972-490 | AT&T | DALLAS | – | – | yes |
| 972-491 | Frontier | PLANO | – | – | yes |
| 972-492 | Frontier | CARROLLTON | – | – | yes |
| 972-493 | Windstream | MILFORD | – | yes | yes |
| 972-494 | Frontier | PLANO | – | – | yes |
| 972-495 | Frontier | PLANO | – | – | yes |
| 972-496 | Frontier | PLANO | – | – | yes |
| 972-497 | AT&T | DALLAS | – | yes | yes |
| 972-498 | AT&T | DALLAS | – | yes | yes |
| 972-499 | Lumen | DALLAS | – | yes | yes |
| 972-500 | Spok | IRVING | – | – | yes |
| 972-501 | AT&T | DALLAS | – | – | yes |
| 972-502 | Verizon | DALLAS | – | yes | yes |
| 972-503 | AT&T | DALLAS | – | yes | yes |
| 972-504 | AT&T | GRANDPRARI | – | yes | yes |
| 972-505 | Verizon | IRVING | – | yes | yes |
| 972-506 | AT&T | DALLAS | – | – | yes |
| 972-507 | Frontier | IRVING | – | – | yes |
| 972-508 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | PROSPER | – | – | yes |
| 972-509 | Frontier | PLANO | – | – | yes |
| 972-510 | AT&T | IRVING | – | yes | yes |
| 972-512 | Verizon | CARROLLTON | – | yes | yes |
| 972-513 | Frontier | IRVING | – | yes | yes |
| 972-514 | Frontier | IRVING | – | yes | yes |
| 972-515 | AT&T | RED OAK | – | yes | yes |
| 972-516 | Frontier | PLANO | – | – | yes |
| 972-517 | Frontier | PLANO | – | – | yes |
| 972-518 | Frontier | IRVING | – | – | yes |
| 972-519 | Frontier | PLANO | – | – | yes |
| 972-520 | AT&T | PLANO | 2018-04-04 | yes | yes |
| 972-521 | Lumen | ALLEN | – | yes | yes |
| 972-522 | AT&T | GRANDPRARI | – | yes | yes |
| 972-523 | AT&T | GRANDPRARI | – | – | yes |
| 972-524 | AT&T | TERRELL | – | – | yes |
| 972-525 | Frontier | WILMER | – | yes | yes |
| 972-526 | AT&T | PLANO | 2002-10-23 | yes | yes |
| 972-527 | Frontier | PLANO | – | – | yes |
| 972-528 | AT&T | DALLAS | – | yes | yes |
| 972-529 | AT&T | MCKINNEY | – | yes | yes |
| 972-530 | Frontier | PLANO | – | – | yes |
| 972-531 | AT&T | PLANO | – | yes | yes |
| 972-532 | Verizon | DALLAS | – | yes | yes |
| 972-533 | AT&T | GRANDPRARI | 2004-09-02 | yes | yes |
| 972-534 | Verizon | DLFTWTARPT | – | yes | yes |
| 972-535 | Verizon | PLANO | – | yes | yes |
| 972-536 | Verizon | IRVING | – | yes | yes |
| 972-537 | Frontier | LEWISVILLE | – | yes | yes |
| 972-538 | Verizon | LEWISVILLE | – | yes | yes |
| 972-539 | Frontier | LEWISVILLE | – | – | yes |
| 972-540 | AT&T | MCKINNEY | – | – | yes |
| 972-541 | Frontier | IRVING | – | – | yes |
| 972-542 | AT&T | MCKINNEY | – | – | yes |
| 972-543 | Verizon | PLANO | – | – | yes |
| 972-544 | Frontier | FERRIS | – | yes | yes |
| 972-545 | Spok | IRVING | – | – | yes |
| 972-546 | Lumen | DALLAS | – | yes | yes |
| 972-547 | AT&T | MCKINNEY | – | – | yes |
| 972-548 | AT&T | MCKINNEY | – | – | yes |
| 972-549 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | MCKINNEY | – | – | yes |
| 972-550 | Frontier | IRVING | – | – | yes |
| 972-551 | AT&T | TERRELL | – | yes | yes |
| 972-552 | AT&T | FORNEY | – | yes | yes |
| 972-553 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | PLANO | – | – | yes |
| 972-554 | Frontier | IRVING | – | – | yes |
| 972-556 | AT&T | DALLAS | – | yes | yes |
| 972-557 | AT&T | DALLAS | – | – | yes |
| 972-558 | AT&T | GRANDPRARI | – | – | yes |
| 972-559 | AT&T | DALLAS | – | yes | yes |
| 972-560 | Verizon | DALLAS | – | – | yes |
| 972-561 | AT&T | GRANDPRARI | – | yes | yes |
| 972-562 | AT&T | MCKINNEY | – | – | yes |
| 972-563 | AT&T | TERRELL | – | – | yes |
| 972-564 | AT&T | FORNEY | – | yes | yes |
| 972-565 | AT&T | FRISCO | 2022-06-21 | yes | yes |
| 972-566 | AT&T | DALLAS | – | – | yes |
| 972-567 | AT&T | GRANDPRARI | – | – | yes |
| 972-568 | Spok | MCKINNEY | – | – | yes |
| 972-569 | AT&T | MCKINNEY | – | yes | yes |
| 972-570 | Frontier | IRVING | – | – | yes |
| 972-571 | AT&T | GRANDPRARI | – | – | yes |
| 972-572 | AT&T | DALLAS | – | yes | yes |
| 972-573 | Onvoy | IRVING | – | yes | yes |
| 972-574 | Frontier | DLFTWTARPT | – | – | yes |
| 972-575 | Frontier | PLANO | – | – | yes |
| 972-576 | AT&T | RED OAK | – | yes | yes |
| 972-577 | Verizon | PLANO | – | – | yes |
| 972-578 | Frontier | PLANO | – | – | yes |
| 972-579 | Frontier | IRVING | – | – | yes |
| 972-580 | Frontier | IRVING | – | – | yes |
| 972-581 | Verizon | DALLAS | – | yes | yes |
| 972-582 | Frontier | IRVING | – | – | yes |
| 972-583 | AT&T | PLANO | – | yes | yes |
| 972-584 | AT&T | DALLAS | – | yes | yes |
| 972-585 | Onvoy | GRANDPRARI | 2022-11-15 | yes | yes |
| 972-586 | Frontier | DLFTWTARPT | – | yes | yes |
| 972-587 | AT&T | DALLAS | – | yes | yes |
| 972-588 | AT&T | DALLAS | – | yes | yes |
| 972-589 | T-Mobile | GRANDPRARI | 2012-10-02 | yes | yes |
| 972-590 | Lumen | DALLAS | – | yes | yes |
| 972-591 | AT&T | DALLAS | – | yes | yes |
| 972-592 | Spok | IRVING | – | – | yes |
| 972-593 | Spok | IRVING | – | – | yes |
| 972-594 | Frontier | IRVING | – | yes | yes |
| 972-595 | AT&T | GRANDPRARI | – | yes | yes |
| 972-596 | Frontier | PLANO | – | – | yes |
| 972-597 | Lumen | ITALY | 2012-12-18 | yes | yes |
| 972-598 | Charter | DALLAS | 2012-12-13 | yes | yes |
| 972-599 | Frontier | PLANO | – | – | yes |
| 972-600 | Onvoy | IRVING | 2007-07-02 | yes | yes |
| 972-601 | AT&T | GRANDPRARI | – | – | yes |
| 972-602 | AT&T | GRANDPRARI | – | yes | yes |
| 972-603 | AT&T | GRANDPRARI | – | yes | yes |
| 972-604 | Frontier | PLANO | – | – | yes |
| 972-605 | Frontier | PLANO | – | – | yes |
| 972-606 | AT&T | GRANDPRARI | – | – | yes |
| 972-607 | Frontier | IRVING | – | yes | yes |
| 972-608 | Frontier | PLANO | – | yes | yes |
| 972-609 | Spok | GRANDPRARI | – | – | yes |
| 972-612 | Frontier | PLANO | – | – | yes |
| 972-613 | AT&T | DALLAS | – | yes | yes |
| 972-614 | AT&T | GRANDPRARI | – | yes | yes |
| 972-615 | Frontier | DLFTWTARPT | – | – | yes |
| 972-616 | Lumen | DALLAS | – | yes | yes |
| 972-617 | AT&T | RED OAK | – | – | yes |
| 972-618 | Frontier | PLANO | – | – | yes |
| 972-619 | AT&T | DALLAS | – | yes | yes |
| 972-620 | AT&T | DALLAS | – | – | yes |
| 972-621 | Frontier | IRVING | – | yes | yes |
| 972-622 | Spok | GRANDPRARI | – | – | yes |
| 972-623 | AT&T | GRANDPRARI | – | yes | yes |
| 972-624 | AT&T | FRISCO | – | yes | yes |
| 972-625 | AT&T | FRISCO | – | – | yes |
| 972-626 | Verizon | GRANDPRARI | 2018-05-08 | yes | yes |
| 972-627 | Windstream | AVALON | – | yes | yes |
| 972-628 | AT&T | DALLAS | – | yes | yes |
| 972-629 | AT&T | DALLAS | – | yes | yes |
| 972-630 | AT&T | DALLAS | – | yes | yes |
| 972-631 | American Messaging | MCKINNEY | – | – | yes |
| 972-632 | Onvoy | MCKINNEY | – | yes | yes |
| 972-633 | Frontier | PLANO | – | – | yes |
| 972-634 | Onvoy | ALLEN | 2022-04-28 | yes | yes |
| 972-635 | AT&T | ROYSE CITY | – | yes | yes |
| 972-636 | AT&T | ROYSE CITY | – | yes | yes |
| 972-637 | Lumen | CEDAR HILL | – | yes | yes |
| 972-638 | AT&T | DALLAS | 2001-04-24 | yes | yes |
| 972-639 | AT&T | GRANDPRARI | 2006-03-09 | yes | yes |
| 972-640 | Onvoy | GRANDPRARI | 2022-05-04 | yes | yes |
| 972-641 | AT&T | GRANDPRARI | – | – | yes |
| 972-642 | AT&T | GRANDPRARI | – | – | yes |
| 972-643 | AT&T | DALLAS | – | yes | yes |
| 972-644 | AT&T | DALLAS | – | – | yes |
| 972-645 | Lumen | ITALY | 2018-01-15 | yes | yes |
| 972-646 | Frontier | BARDWELL | – | yes | yes |
| 972-647 | AT&T | GRANDPRARI | – | – | yes |
| 972-648 | American Messaging | GRANDPRARI | – | – | yes |
| 972-649 | Verizon | ALLEN | – | yes | yes |
| 972-650 | Frontier | IRVING | – | – | yes |
| 972-651 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | ROCKWALL | – | – | yes |
| 972-652 | Frontier | IRVING | – | yes | yes |
| 972-653 | Frontier | IRVING | – | yes | yes |
| 972-654 | AT&T | FRISCO | 2020-04-09 | yes | yes |
| 972-655 | Frontier | IRVING | – | yes | yes |
| 972-656 | Verizon | DALLAS | – | yes | yes |
| 972-657 | Frontier | IRVING | – | yes | yes |
| 972-658 | AT&T | MCKINNEY | – | – | yes |
| 972-659 | Frontier | IRVING | – | – | yes |
| 972-660 | AT&T | GRANDPRARI | – | – | yes |
| 972-661 | AT&T | DALLAS | – | – | yes |
| 972-662 | Frontier | CARROLLTON | – | yes | yes |
| 972-663 | AT&T | DALLAS | – | yes | yes |
| 972-664 | AT&T | DALLAS | – | yes | yes |
| 972-665 | Verizon | PLANO | – | yes | yes |
| 972-666 | Frontier | BRISTOL | – | yes | yes |
| 972-667 | Spok | GRANDPRARI | – | – | yes |
| 972-668 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | FRISCO | – | – | yes |
| 972-669 | AT&T | DALLAS | – | – | yes |
| 972-670 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-671 | AT&T | DALLAS | – | yes | yes |
| 972-672 | AT&T | GRANDPRARI | – | – | yes |
| 972-673 | AT&T | PLANO | – | yes | yes |
| 972-674 | Bandwidth | DALLAS | – | yes | yes |
| 972-675 | Frontier | PLANO | – | yes | yes |
| 972-676 | Verizon | DALLAS | – | yes | yes |
| 972-677 | AT&T | DALLAS | – | yes | yes |
| 972-678 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | ALLEN | – | – | yes |
| 972-679 | AT&T | GRANDPRARI | – | – | yes |
| 972-680 | AT&T | DALLAS | – | – | yes |
| 972-681 | AT&T | DALLAS | – | – | yes |
| 972-682 | AT&T | DALLAS | – | yes | yes |
| 972-683 | AT&T | MCKINNEY | – | – | yes |
| 972-684 | AT&T | DALLAS | – | yes | yes |
| 972-685 | AT&T | DALLAS | – | yes | yes |
| 972-686 | AT&T | DALLAS | – | yes | yes |
| 972-687 | AT&T | DALLAS | – | – | yes |
| 972-688 | HD CARRIER LLC | PLANO | 2021-11-04 | yes | yes |
| 972-689 | AT&T | GRANDPRARI | 2005-02-15 | yes | yes |
| 972-690 | AT&T | DALLAS | – | – | yes |
| 972-691 | Frontier | LEWISVILLE | – | – | yes |
| 972-692 | Verizon | DALLAS | – | – | yes |
| 972-693 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-694 | Frontier | JOSEPHINE | – | yes | yes |
| 972-695 | Frontier | CARROLLTON | – | yes | yes |
| 972-696 | Frontier | PLANO | – | yes | yes |
| 972-697 | AT&T | GRANDPRARI | – | yes | yes |
| 972-698 | AT&T | DALLAS | – | yes | yes |
| 972-699 | AT&T | DALLAS | – | yes | yes |
| 972-701 | AT&T | DALLAS | – | yes | yes |
| 972-702 | AT&T | DALLAS | – | yes | yes |
| 972-703 | T-Mobile | TERRELL | – | yes | yes |
| 972-704 | AT&T | FRISCO | – | yes | yes |
| 972-705 | AT&T | DALLAS | – | yes | yes |
| 972-706 | AT&T | DALLAS | – | – | yes |
| 972-707 | Verizon | DALLAS | – | yes | yes |
| 972-708 | AT&T | DALLAS | – | yes | yes |
| 972-709 | AT&T | DALLAS | – | – | yes |
| 972-710 | AT&T | GRANDPRARI | 2023-08-08 | yes | yes |
| 972-712 | AT&T | FRISCO | – | – | yes |
| 972-713 | AT&T | DALLAS | – | – | yes |
| 972-714 | Frontier | IRVING | – | – | yes |
| 972-715 | AT&T | DALLAS | – | yes | yes |
| 972-716 | AT&T | DALLAS | – | – | yes |
| 972-717 | Frontier | IRVING | – | – | yes |
| 972-718 | Frontier | IRVING | – | – | yes |
| 972-719 | Frontier | IRVING | – | – | yes |
| 972-720 | AT&T | DALLAS | – | yes | yes |
| 972-721 | Frontier | IRVING | – | – | yes |
| 972-722 | AT&T | ROCKWALL | – | – | yes |
| 972-723 | AT&T | MIDLOTHIAN | – | yes | yes |
| 972-724 | Frontier | LEWISVILLE | – | – | yes |
| 972-725 | Verizon | DALLAS | – | yes | yes |
| 972-726 | AT&T | DALLAS | – | – | yes |
| 972-727 | AT&T | ALLEN | – | – | yes |
| 972-728 | Verizon | DALLAS | – | – | yes |
| 972-729 | Verizon | DALLAS | – | yes | yes |
| 972-730 | AT&T | GRANDPRARI | – | yes | yes |
| 972-731 | AT&T | FRISCO | – | – | yes |
| 972-732 | AT&T | DALLAS | – | – | yes |
| 972-733 | AT&T | DALLAS | – | yes | yes |
| 972-734 | AT&T | PRINCETON | – | yes | yes |
| 972-735 | AT&T | DALLAS | – | – | yes |
| 972-736 | AT&T | PRINCETON | – | yes | yes |
| 972-737 | Verizon | ALLEN | 2014-12-03 | yes | yes |
| 972-738 | AT&T | DALLAS | – | yes | yes |
| 972-739 | Verizon | DALLAS | – | yes | yes |
| 972-740 | AT&T | GRANDPRARI | – | – | yes |
| 972-741 | AT&T | GRANDPRARI | – | – | yes |
| 972-742 | AT&T | GRANDPRARI | – | – | yes |
| 972-743 | AT&T | GRANDPRARI | – | – | yes |
| 972-744 | AT&T | DALLAS | – | yes | yes |
| 972-745 | Frontier | LEWISVILLE | – | – | yes |
| 972-746 | Lumen | IRVING | 2001-05-07 | yes | yes |
| 972-747 | AT&T | ALLEN | – | – | yes |
| 972-748 | Lumen | DE SOTO | – | yes | yes |
| 972-749 | Verizon | DALLAS | – | – | yes |
| 972-750 | AT&T | TERRELL | 2001-10-11 | yes | yes |
| 972-751 | Frontier | IRVING | – | – | yes |
| 972-752 | Frontier | BLUE RIDGE | – | yes | yes |
| 972-753 | Frontier | IRVING | – | – | yes |
| 972-754 | AT&T | GRANDPRARI | – | – | yes |
| 972-755 | Onvoy | DALLAS | – | yes | yes |
| 972-756 | Frontier | IRVING | – | – | yes |
| 972-757 | AT&T | GRANDPRARI | – | – | yes |
| 972-758 | Frontier | PLANO | – | – | yes |
| 972-759 | Verizon | DALLAS | – | – | yes |
| 972-760 | Spok | GRANDPRARI | – | – | yes |
| 972-761 | AT&T | DALLAS | – | yes | yes |
| 972-762 | AT&T | GRANDPRARI | 2004-09-10 | yes | yes |
| 972-763 | AT&T | DALLAS | – | yes | yes |
| 972-764 | AT&T | DALLAS | – | yes | yes |
| 972-765 | AT&T | CEDAR HILL | 2003-03-04 | yes | yes |
| 972-766 | AT&T | DALLAS | – | – | yes |
| 972-767 | Verizon | PLANO | – | yes | yes |
| 972-768 | Verizon | GRANDPRARI | – | – | yes |
| 972-769 | Frontier | PLANO | – | yes | yes |
| 972-770 | AT&T | DALLAS | – | – | yes |
| 972-771 | AT&T | ROCKWALL | – | – | yes |
| 972-772 | AT&T | ROCKWALL | – | – | yes |
| 972-773 | AT&T | DALLAS | – | yes | yes |
| 972-774 | AT&T | DALLAS | – | yes | yes |
| 972-775 | AT&T | MIDLOTHIAN | – | yes | yes |
| 972-776 | AT&T | DALLAS | – | yes | yes |
| 972-777 | USFON, INC. - TX | DALLAS | 2019-11-19 | yes | yes |
| 972-778 | AT&T | DALLAS | – | – | yes |
| 972-779 | AT&T | CEDAR HILL | – | yes | yes |
| 972-780 | AT&T | DALLAS | – | – | yes |
| 972-781 | Frontier | PLANO | – | yes | yes |
| 972-782 | AT&T | FARMERSVL | – | yes | yes |
| 972-783 | AT&T | DALLAS | – | yes | yes |
| 972-784 | AT&T | FARMERSVL | – | yes | yes |
| 972-785 | Frontier | IRVING | – | yes | yes |
| 972-786 | Lumen | IRVING | – | yes | yes |
| 972-787 | AT&T | PROSPER | 2010-08-24 | yes | yes |
| 972-788 | AT&T | DALLAS | – | – | yes |
| 972-789 | AT&T | DALLAS | – | yes | yes |
| 972-790 | Frontier | IRVING | – | – | yes |
| 972-791 | Frontier | IRVING | – | yes | yes |
| 972-792 | AT&T | DALLAS | 2001-04-24 | yes | yes |
| 972-793 | Verizon | IRVING | – | yes | yes |
| 972-794 | Verizon | DALLAS | – | – | yes |
| 972-795 | AT&T | GRANDPRARI | – | yes | yes |
| 972-796 | Frontier | PLANO | – | – | yes |
| 972-797 | Frontier | PLANO | – | yes | yes |
| 972-798 | Lumen | CARROLLTON | – | yes | yes |
| 972-799 | AT&T | GRANDPRARI | 2019-06-27 | yes | yes |
| 972-800 | AT&T | GRANDPRARI | 2005-01-07 | yes | yes |
| 972-801 | AT&T | PLANO | – | yes | yes |
| 972-802 | T-Mobile | GRANDPRARI | 2012-10-02 | yes | yes |
| 972-803 | Verizon | DALLAS | – | yes | yes |
| 972-804 | AT&T | GRANDPRARI | 2004-09-10 | yes | yes |
| 972-805 | Lumen | PLANO | – | yes | yes |
| 972-806 | AT&T | PLANO | 2017-03-02 | yes | yes |
| 972-807 | Verizon | DALLAS | – | yes | yes |
| 972-808 | AT&T | DALLAS | – | yes | yes |
| 972-809 | AT&T | GRANDPRARI | – | yes | yes |
| 972-810 | Verizon | CARROLLTON | 2011-07-28 | yes | yes |
| 972-812 | Onvoy | IRVING | – | – | yes |
| 972-813 | Verizon | DALLAS | – | yes | yes |
| 972-814 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-815 | Verizon | IRVING | – | yes | yes |
| 972-816 | AT&T | GRANDPRARI | – | – | yes |
| 972-817 | AT&T | IRVING | 2016-07-21 | yes | yes |
| 972-818 | AT&T | DALLAS | – | yes | yes |
| 972-819 | AT&T | IRVING | – | yes | yes |
| 972-820 | AT&T | CARROLLTON | – | yes | yes |
| 972-821 | T-Mobile | IRVING | – | yes | yes |
| 972-822 | AT&T | IRVING | – | yes | yes |
| 972-823 | Onvoy | IRVING | – | yes | yes |
| 972-824 | AT&T | GRANDPRARI | – | – | yes |
| 972-825 | AT&T | WAXAHACHIE | 2001-12-27 | yes | yes |
| 972-826 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | PLANO | – | – | yes |
| 972-827 | Verizon | IRVING | – | yes | yes |
| 972-828 | AT&T | DALLAS | – | – | yes |
| 972-829 | Lumen | LEWISVILLE | – | yes | yes |
| 972-830 | AT&T | DALLAS | – | – | yes |
| 972-831 | AT&T | DALLAS | – | – | yes |
| 972-832 | AT&T | MCKINNEY | – | yes | yes |
| 972-833 | Lumen | FERRIS | – | yes | yes |
| 972-834 | AT&T | GRANDPRARI | 2005-01-07 | yes | yes |
| 972-835 | AT&T | GRANDPRARI | 2005-02-15 | yes | yes |
| 972-836 | Verizon | PLANO | – | yes | yes |
| 972-837 | AT&T | MCKINNEY | – | yes | yes |
| 972-838 | AT&T | MCKINNEY | – | yes | yes |
| 972-839 | AT&T | GRANDPRARI | – | – | yes |
| 972-840 | Frontier | PLANO | – | – | yes |
| 972-841 | Verizon | GRANDPRARI | – | – | yes |
| 972-842 | Frontier | FERRIS | – | yes | yes |
| 972-843 | Frontier | NEVADA | – | yes | yes |
| 972-844 | EXIANT COMMUNICATIONS LLC | DALLAS | – | – | yes |
| 972-845 | Frontier | PALMER | – | yes | yes |
| 972-846 | Frontier | BRISTOL | – | yes | yes |
| 972-847 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | DALLAS | – | – | yes |
| 972-848 | Onvoy | WILMER | – | yes | yes |
| 972-849 | Verizon | GRANDPRARI | – | – | yes |
| 972-850 | Lumen | DALLAS | – | yes | yes |
| 972-851 | AT&T | DALLAS | – | yes | yes |
| 972-852 | Verizon | DALLAS | – | – | yes |
| 972-853 | Frontier | NEVADA | – | yes | yes |
| 972-854 | Lumen | GRANDPRARI | – | yes | yes |
| 972-855 | AT&T | DALLAS | – | yes | yes |
| 972-856 | AT&T | DALLAS | – | yes | yes |
| 972-857 | AT&T | DALLAS | – | – | yes |
| 972-858 | AT&T | DALLAS | – | – | yes |
| 972-859 | AT&T | GRANDPRARI | – | yes | yes |
| 972-860 | AT&T | DALLAS | – | yes | yes |
| 972-861 | AT&T | DALLAS | – | yes | yes |
| 972-862 | Frontier | CARROLLTON | – | – | yes |
| 972-863 | AT&T | DALLAS | – | yes | yes |
| 972-864 | Frontier | PLANO | – | – | yes |
| 972-865 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | DALLAS | – | yes | yes |
| 972-866 | AT&T | DALLAS | – | yes | yes |
| 972-867 | Frontier | PLANO | – | – | yes |
| 972-868 | AT&T | DALLAS | – | – | yes |
| 972-869 | AT&T | DALLAS | – | – | yes |
| 972-870 | AT&T | IRVING | – | – | yes |
| 972-871 | AT&T | IRVING | – | – | yes |
| 972-872 | AT&T | ENNIS | – | yes | yes |
| 972-873 | TELETOUCH COMMUNICATIONS, INC. | GRANDPRARI | – | – | yes |
| 972-874 | Frontier | LEWISVILLE | – | – | yes |
| 972-875 | AT&T | ENNIS | – | – | yes |
| 972-876 | AT&T | ENNIS | – | yes | yes |
| 972-877 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-878 | AT&T | ENNIS | – | yes | yes |
| 972-879 | American Messaging | GRANDPRARI | – | – | yes |
| 972-880 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-881 | Frontier | PLANO | – | – | yes |
| 972-882 | AT&T | DALLAS | – | yes | yes |
| 972-883 | AT&T | DALLAS | – | – | yes |
| 972-884 | AT&T | DALLAS | – | yes | yes |
| 972-885 | NUSO, LLC | DALLAS | 2012-10-18 | yes | yes |
| 972-886 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | MCKINNEY | – | yes | yes |
| 972-887 | Frontier | IRVING | – | yes | yes |
| 972-888 | AT&T | DALLAS | – | – | yes |
| 972-889 | AT&T | DALLAS | – | yes | yes |
| 972-890 | Verizon | GRANDPRARI | – | yes | yes |
| 972-891 | Verizon | IRVING | – | yes | yes |
| 972-892 | Verizon | DALLAS | – | – | yes |
| 972-893 | Frontier | IRVING | – | yes | yes |
| 972-894 | Lumen | IRVING | – | yes | yes |
| 972-895 | Onvoy | BRISTOL | – | yes | yes |
| 972-896 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-897 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-898 | T-Mobile | GRANDPRARI | – | yes | yes |
| 972-899 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | LEWISVILLE | – | – | yes |
| 972-900 | AT&T | GRANDPRARI | 2004-09-10 | yes | yes |
| 972-901 | AT&T | GRANDPRARI | – | yes | yes |
| 972-902 | Spok | GRANDPRARI | – | – | yes |
| 972-903 | AT&T | WAXAHACHIE | 2016-09-30 | yes | yes |
| 972-904 | AT&T | GRANDPRARI | 2005-01-07 | yes | yes |
| 972-905 | Frontier | PLANO | 2011-03-24 | yes | yes |
| 972-906 | AT&T | LEWISVILLE | – | yes | yes |
| 972-907 | AT&T | DALLAS | – | – | yes |
| 972-908 | Verizon | ALLEN | – | yes | yes |
| 972-909 | Spok | GRANDPRARI | – | – | yes |
| 972-910 | AT&T | DALLAS | – | yes | yes |
| 972-912 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | ALLEN | – | – | yes |
| 972-913 | AT&T | DALLAS | – | yes | yes |
| 972-914 | Lumen | NEVADA | – | yes | yes |
| 972-915 | Frontier | IRVING | – | – | yes |
| 972-916 | Frontier | IRVING | – | yes | yes |
| 972-917 | AT&T | DALLAS | – | yes | yes |
| 972-918 | AT&T | DALLAS | – | yes | yes |
| 972-919 | AT&T | DALLAS | – | yes | yes |
| 972-920 | Onvoy | DE SOTO | – | yes | yes |
| 972-921 | AT&T | WAXAHACHIE | – | yes | yes |
| 972-922 | AT&T | GRANDPRARI | 2005-02-15 | yes | yes |
| 972-923 | AT&T | WAXAHACHIE | – | – | yes |
| 972-924 | AT&T | ANNA | – | yes | yes |
| 972-925 | Verizon | DALLAS | – | yes | yes |
| 972-926 | Frontier | PLANO | – | yes | yes |
| 972-927 | AT&T | DALLAS | – | yes | yes |
| 972-928 | Onvoy | FRISCO | 2022-05-04 | yes | yes |
| 972-929 | Frontier | IRVING | – | – | yes |
| 972-930 | AT&T | DALLAS | – | yes | yes |
| 972-931 | AT&T | DALLAS | – | – | yes |
| 972-932 | Brightspeed | KAUFMAN | – | – | yes |
| 972-933 | AT&T | GRANDPRARI | – | – | yes |
| 972-934 | AT&T | DALLAS | – | – | yes |
| 972-935 | AT&T | WAXAHACHIE | – | – | yes |
| 972-936 | AT&T | DALLAS | 2018-02-22 | yes | yes |
| 972-937 | AT&T | WAXAHACHIE | – | – | yes |
| 972-938 | AT&T | WAXAHACHIE | – | – | yes |
| 972-939 | Frontier | CARROLLTON | – | – | yes |
| 972-940 | AT&T | DALLAS | 2017-01-24 | yes | yes |
| 972-941 | Frontier | PLANO | – | yes | yes |
| 972-942 | AT&T | DALLAS | 2018-03-26 | yes | yes |
| 972-943 | AT&T | PLANO | – | – | yes |
| 972-944 | EON TELECOM, INC. | DALLAS | 2023-12-15 | yes | yes |
| 972-945 | Peerless | JOSEPHINE | 2018-09-24 | yes | yes |
| 972-946 | AT&T | GRANDPRARI | – | yes | yes |
| 972-947 | Frontier | DLFTWTARPT | – | yes | yes |
| 972-948 | AT&T | IRVING | – | – | yes |
| 972-949 | AT&T | GRANDPRARI | – | – | yes |
| 972-951 | AT&T | IRVING | 2004-07-26 | yes | yes |
| 972-952 | AT&T | DALLAS | – | – | yes |
| 972-953 | AT&T | IRVING | – | yes | yes |
| 972-954 | Onvoy | ALLEN | – | yes | yes |
| 972-955 | AT&T | GRANDPRARI | 2005-01-07 | yes | yes |
| 972-956 | AT&T | LEWISVILLE | – | – | yes |
| 972-957 | Verizon | IRVING | – | yes | yes |
| 972-960 | AT&T | DALLAS | – | – | yes |
| 972-961 | Verizon | ROCKWALL | – | yes | yes |
| 972-962 | Brightspeed | KAUFMAN | – | yes | yes |
| 972-963 | Verizon | FRISCO | – | yes | yes |
| 972-964 | Frontier | PLANO | – | – | yes |
| 972-965 | AT&T | GRANDPRARI | – | – | yes |
| 972-966 | Frontier | LEWISVILLE | – | yes | yes |
| 972-967 | TELETOUCH COMMUNICATIONS, INC. | GRANDPRARI | – | – | yes |
| 972-968 | AT&T | DALLAS | – | yes | yes |
| 972-969 | AT&T | DALLAS | – | – | yes |
| 972-970 | Onvoy | GRANDPRARI | 2022-02-24 | yes | yes |
| 972-971 | AT&T | GRANDPRARI | 2005-10-21 | yes | yes |
| 972-972 | Onvoy | DALLAS | 2017-10-19 | yes | yes |
| 972-973 | Frontier | DLFTWTARPT | 2004-09-30 | yes | yes |
| 972-974 | AT&T | GRANDPRARI | 2005-08-31 | yes | yes |
| 972-975 | AT&T | GRANDPRARI | – | yes | yes |
| 972-977 | AT&T | GRANDPRARI | – | – | yes |
| 972-978 | AT&T | GRANDPRARI | – | – | yes |
| 972-979 | AT&T | GRANDPRARI | – | – | yes |
| 972-980 | AT&T | DALLAS | – | – | yes |
| 972-981 | Frontier | PLANO | – | – | yes |
| 972-982 | AT&T | DALLAS | – | yes | yes |
| 972-983 | AT&T | IRVING | – | yes | yes |
| 972-984 | Verizon | MCKINNEY | – | yes | yes |
| 972-985 | Frontier | PLANO | – | – | yes |
| 972-986 | Frontier | IRVING | – | – | yes |
| 972-987 | AT&T | FRISCO | – | yes | yes |
| 972-988 | AT&T | GRANDPRARI | – | yes | yes |
| 972-989 | AT&T | GRANDPRARI | – | – | yes |
| 972-990 | AT&T | IRVING | 2017-03-27 | yes | yes |
| 972-991 | AT&T | DALLAS | – | – | yes |
| 972-992 | Lumen | GRANDPRARI | – | yes | yes |
| 972-993 | TPx | DALLAS | – | – | yes |
| 972-994 | AT&T | DALLAS | – | yes | yes |
| 972-995 | AT&T | DALLAS | – | – | yes |
| 972-996 | AT&T | DALLAS | – | yes | yes |
| 972-997 | AT&T | DALLAS | – | yes | yes |
| 972-998 | Verizon | GRANDPRARI | – | – | yes |
| 972-999 | Lumen | IRVING | – | yes | yes |
Frequently asked
How many prefixes does area code 972 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 43 rate centers.
What do the first three digits after 972 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 972 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 972 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 442 of 972'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.
More about this code: overview · carriers · spam complaints · local time