All assignees
800 prefixes in 972 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 972-400 | GRANDPRARI | 6534 | 2006-05-22 | Yes |
| 972-401 | DALLAS | 9533 | — | — |
| 972-402 | DALLAS | 9533 | — | Yes |
| 972-403 | PLANO | 4344 | — | Yes |
| 972-404 | DALLAS | 9533 | — | Yes |
| 972-405 | DALLAS | 9533 | — | — |
| 972-406 | DALLAS | 9533 | — | — |
| 972-407 | DALLAS | 9533 | — | — |
| 972-408 | GRANDPRARI | 7229 | — | Yes |
| 972-409 | DALLAS | 9533 | — | — |
| 972-410 | LEWISVILLE | 7670 | — | — |
| 972-411 | XXXXXXXXXX | MULT | — | — |
| 972-412 | PLANO | 4344 | — | — |
| 972-413 | IRVING | 4344 | — | Yes |
| 972-414 | PLANO | 4344 | — | — |
| 972-415 | GRANDPRARI | 6534 | 2004-09-10 | Yes |
| 972-416 | CARROLLTON | 4344 | — | — |
| 972-417 | CARROLLTON | 4344 | — | — |
| 972-418 | CARROLLTON | 4344 | — | — |
| 972-419 | DALLAS | 9533 | — | — |
| 972-420 | LEWISVILLE | 4344 | — | — |
| 972-421 | DALLAS | 7516 | — | Yes |
| 972-422 | PLANO | 4344 | — | — |
| 972-423 | PLANO | 4344 | — | — |
| 972-424 | PLANO | 4344 | — | — |
| 972-425 | DLFTWTARPT | 4344 | — | — |
| 972-426 | DLFTWTARPT | 7516 | — | Yes |
| 972-427 | CRANDALL | 9533 | — | Yes |
| 972-428 | CARROLLTON | 7516 | — | Yes |
| 972-429 | PLANO | 4344 | — | — |
| 972-430 | BLUE RIDGE | 6114 | 2016-09-26 | Yes |
| 972-431 | PLANO | 508J | — | Yes |
| 972-432 | DALLAS | 9533 | — | Yes |
| 972-433 | PROSPER | 9533 | 2017-05-22 | Yes |
| 972-434 | LEWISVILLE | 4344 | — | — |
| 972-435 | MAYPEARL | 2154 | — | Yes |
| 972-436 | LEWISVILLE | 4344 | — | — |
| 972-437 | DALLAS | 9533 | — | Yes |
| 972-438 | IRVING | 4344 | — | — |
| 972-439 | MCKINNEY | 7229 | — | Yes |
| 972-440 | CARROLLTON | 903C | — | Yes |
| 972-441 | WILMER | 2154 | — | Yes |
| 972-442 | PLANO | 4344 | — | — |
| 972-443 | DALLAS | 9533 | — | — |
| 972-444 | DALLAS | 9533 | — | — |
| 972-445 | IRVING | 4344 | — | Yes |
| 972-446 | CARROLLTON | 4344 | — | — |
| 972-447 | DALLAS | 9533 | — | Yes |
| 972-448 | DALLAS | 9533 | — | — |
| 972-449 | PALMER | 2154 | — | Yes |
| 972-450 | DALLAS | 9533 | — | — |
| 972-451 | GRANDPRARI | 6630 | — | — |
| 972-452 | SCURRY | 2153 | — | Yes |
| 972-453 | DLFTWTARPT | 4344 | — | Yes |
| 972-454 | DALLAS | 9533 | — | Yes |
| 972-455 | DALLAS | 9533 | — | Yes |
| 972-456 | DLFTWTARPT | 4344 | — | Yes |
| 972-457 | IRVING | 903C | — | Yes |
| 972-458 | DALLAS | 9533 | — | Yes |
| 972-459 | LEWISVILLE | 4344 | — | Yes |
| 972-460 | CEDAR HILL | 903C | — | Yes |
| 972-461 | PLANO | 4344 | — | — |
| 972-462 | LEWISVILLE | 4344 | — | Yes |
| 972-463 | PLANO | 4344 | — | — |
| 972-464 | FRISCO | 7516 | — | Yes |
| 972-465 | IRVING | 4344 | — | Yes |
| 972-466 | CARROLLTON | 4344 | — | — |
| 972-467 | GRANDPRARI | 6534 | — | — |
| 972-468 | PLANO | 4344 | — | Yes |
| 972-469 | FRISCO | 671J | 2016-07-11 | Yes |
| 972-470 | DALLAS | 9533 | — | Yes |
| 972-471 | LEWISVILLE | 4344 | — | Yes |
| 972-472 | CRANDALL | 9533 | — | Yes |
| 972-473 | PLANO | 4344 | — | — |
| 972-474 | COMBINE | 9533 | — | Yes |
| 972-475 | PLANO | 4344 | — | — |
| 972-476 | COMBINE | 9533 | — | Yes |
| 972-477 | PLANO | 6534 | — | Yes |
| 972-478 | CARROLLTON | 4344 | — | Yes |
| 972-479 | DALLAS | 9533 | — | Yes |
| 972-480 | DALLAS | 9533 | — | Yes |
| 972-481 | DALLAS | 9533 | — | Yes |
| 972-482 | GRANDPRARI | 6506 | 2017-11-30 | Yes |
| 972-483 | ITALY | 9533 | — | Yes |
| 972-484 | DALLAS | 9533 | — | — |
| 972-485 | PLANO | 4344 | — | — |
| 972-486 | SCURRY | 2153 | — | Yes |
| 972-487 | PLANO | 4344 | — | — |
| 972-488 | DALLAS | 9533 | — | Yes |
| 972-489 | GRANDPRARI | 6534 | — | — |
| 972-490 | DALLAS | 9533 | — | — |
| 972-491 | PLANO | 4344 | — | — |
| 972-492 | CARROLLTON | 4344 | — | — |
| 972-493 | MILFORD | 1181 | — | Yes |
| 972-494 | PLANO | 4344 | — | — |
| 972-495 | PLANO | 4344 | — | — |
| 972-496 | PLANO | 4344 | — | — |
| 972-497 | DALLAS | 9533 | — | Yes |
| 972-498 | DALLAS | 9533 | — | Yes |
| 972-499 | DALLAS | 6114 | — | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.