SOUTHWESTERN BELL
281 prefixes in 210 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 210-458 | SANANTONIO | 9533 | — | — |
| 210-462 | SANANTONIO | 9533 | — | Yes |
| 210-463 | SANANTONIO | 9533 | — | Yes |
| 210-465 | SANANTONIO | 9533 | — | Yes |
| 210-467 | SANANTONIO | 9533 | — | Yes |
| 210-470 | SANANTONIO | 9533 | — | — |
| 210-471 | SANANTONIO | 9533 | — | Yes |
| 210-472 | SANANTONIO | 9533 | — | — |
| 210-474 | SANANTONIO | 9533 | — | Yes |
| 210-475 | SANANTONIO | 9533 | — | Yes |
| 210-476 | SANANTONIO | 9533 | — | Yes |
| 210-478 | SANANTONIO | 9533 | — | Yes |
| 210-479 | SANANTONIO | 9533 | — | — |
| 210-481 | SANANTONIO | 9533 | — | Yes |
| 210-482 | SANANTONIO | 9533 | — | Yes |
| 210-483 | SANANTONIO | 9533 | — | Yes |
| 210-486 | SANANTONIO | 9533 | 2008-03-10 | Yes |
| 210-487 | SANANTONIO | 9533 | — | Yes |
| 210-489 | SANANTONIO | 9533 | — | Yes |
| 210-490 | SANANTONIO | 9533 | — | — |
| 210-491 | SANANTONIO | 9533 | — | — |
| 210-492 | SANANTONIO | 9533 | — | — |
| 210-493 | SANANTONIO | 9533 | — | — |
| 210-494 | SANANTONIO | 9533 | — | — |
| 210-495 | SANANTONIO | 9533 | — | — |
| 210-496 | SANANTONIO | 9533 | — | — |
| 210-497 | SANANTONIO | 9533 | — | — |
| 210-498 | SANANTONIO | 9533 | — | — |
| 210-499 | SANANTONIO | 9533 | — | — |
| 210-506 | SANANTONIO | 9533 | — | — |
| 210-509 | SANANTONIO | 9533 | — | — |
| 210-518 | SANANTONIO | 9533 | — | Yes |
| 210-520 | SANANTONIO | 9533 | — | — |
| 210-521 | SANANTONIO | 9533 | — | — |
| 210-522 | SANANTONIO | 9533 | — | — |
| 210-523 | SANANTONIO | 9533 | — | Yes |
| 210-524 | SANANTONIO | 9533 | — | — |
| 210-525 | SANANTONIO | 9533 | — | — |
| 210-527 | SANANTONIO | 9533 | — | Yes |
| 210-528 | SANANTONIO | 9533 | — | Yes |
| 210-530 | SANANTONIO | 9533 | — | Yes |
| 210-531 | SANANTONIO | 9533 | — | Yes |
| 210-532 | SANANTONIO | 9533 | — | — |
| 210-533 | SANANTONIO | 9533 | — | — |
| 210-534 | SANANTONIO | 9533 | — | — |
| 210-541 | SANANTONIO | 9533 | — | Yes |
| 210-543 | SANANTONIO | 9533 | — | Yes |
| 210-545 | SANANTONIO | 9533 | — | — |
| 210-554 | SANANTONIO | 9533 | — | — |
| 210-558 | SANANTONIO | 9533 | — | — |
| 210-561 | SANANTONIO | 9533 | — | — |
| 210-562 | SANANTONIO | 9533 | — | Yes |
| 210-564 | SANANTONIO | 9533 | — | Yes |
| 210-565 | SANANTONIO | 9533 | — | — |
| 210-566 | SANANTONIO | 9533 | — | — |
| 210-567 | SANANTONIO | 9533 | — | — |
| 210-575 | SANANTONIO | 9533 | — | — |
| 210-585 | SANANTONIO | 9533 | 2013-03-11 | Yes |
| 210-586 | SANANTONIO | 9533 | — | — |
| 210-588 | SANANTONIO | 9533 | — | Yes |
| 210-590 | SANANTONIO | 9533 | — | — |
| 210-592 | SANANTONIO | 9533 | — | Yes |
| 210-593 | SANANTONIO | 9533 | — | Yes |
| 210-595 | SANANTONIO | 9533 | — | Yes |
| 210-596 | SANANTONIO | 9533 | 2015-01-28 | Yes |
| 210-599 | SANANTONIO | 9533 | — | — |
| 210-614 | SANANTONIO | 9533 | — | Yes |
| 210-615 | SANANTONIO | 9533 | — | Yes |
| 210-616 | SANANTONIO | 9533 | — | Yes |
| 210-617 | SANANTONIO | 9533 | — | Yes |
| 210-619 | SANANTONIO | 9533 | — | Yes |
| 210-621 | SANANTONIO | 9533 | — | Yes |
| 210-622 | SANANTONIO | 9533 | — | Yes |
| 210-623 | SANANTONIO | 9533 | — | Yes |
| 210-624 | SANANTONIO | 9533 | — | Yes |
| 210-626 | SANANTONIO | 9533 | — | Yes |
| 210-627 | SANANTONIO | 9533 | — | Yes |
| 210-628 | SANANTONIO | 9533 | — | Yes |
| 210-633 | SANANTONIO | 9533 | — | Yes |
| 210-635 | SANANTONIO | 9533 | — | Yes |
| 210-637 | SANANTONIO | 9533 | — | Yes |
| 210-641 | SANANTONIO | 9533 | — | Yes |
| 210-644 | SANANTONIO | 9533 | 2008-12-05 | Yes |
| 210-645 | SANANTONIO | 9533 | — | Yes |
| 210-646 | SANANTONIO | 9533 | — | Yes |
| 210-647 | SANANTONIO | 9533 | — | Yes |
| 210-648 | SANANTONIO | 9533 | — | — |
| 210-649 | SANANTONIO | 9533 | — | Yes |
| 210-650 | SANANTONIO | 9533 | — | Yes |
| 210-651 | SANANTONIO | 9533 | — | Yes |
| 210-652 | SANANTONIO | 9533 | — | — |
| 210-653 | SANANTONIO | 9533 | — | — |
| 210-654 | SANANTONIO | 9533 | — | — |
| 210-655 | SANANTONIO | 9533 | — | — |
| 210-656 | SANANTONIO | 9533 | — | — |
| 210-657 | SANANTONIO | 9533 | — | Yes |
| 210-658 | SANANTONIO | 9533 | — | — |
| 210-659 | SANANTONIO | 9533 | — | — |
| 210-661 | SANANTONIO | 9533 | — | — |
| 210-662 | SANANTONIO | 9533 | — | — |
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.