SOUTHWESTERN BELL
470 prefixes in 713 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 713-571 | HOUSTON | 9533 | — | Yes |
| 713-572 | HOUSTON | 9533 | — | Yes |
| 713-573 | XXXXXXXXXX | 9533 | — | — |
| 713-578 | HOUSTON | 9533 | — | Yes |
| 713-584 | HOUSTON | 9533 | — | Yes |
| 713-585 | HOUSTON | 9533 | — | Yes |
| 713-586 | HOUSTON | 9533 | — | Yes |
| 713-587 | HOUSTON | 9533 | — | Yes |
| 713-588 | HOUSTON | 9533 | — | Yes |
| 713-589 | HOUSTON | 9533 | — | Yes |
| 713-592 | HOUSTON | 9533 | — | Yes |
| 713-596 | HOUSTON | 9533 | — | — |
| 713-599 | HOUSTON | 9533 | — | — |
| 713-602 | HOUSTON | 9533 | — | — |
| 713-609 | HOUSTON | 9533 | — | Yes |
| 713-610 | HOUSTON | 9533 | — | — |
| 713-613 | HOUSTON | 9533 | — | Yes |
| 713-615 | HOUSTON | 9533 | — | — |
| 713-620 | HOUSTON | 9533 | — | Yes |
| 713-621 | HOUSTON | 9533 | — | — |
| 713-622 | HOUSTON | 9533 | — | — |
| 713-623 | HOUSTON | 9533 | — | Yes |
| 713-624 | HOUSTON | 9533 | — | Yes |
| 713-625 | HOUSTON | 9533 | — | — |
| 713-626 | HOUSTON | 9533 | — | — |
| 713-627 | HOUSTON | 9533 | — | — |
| 713-629 | HOUSTON | 9533 | — | — |
| 713-630 | HOUSTON | 9533 | — | Yes |
| 713-631 | HOUSTON | 9533 | — | Yes |
| 713-632 | HOUSTON | 9533 | — | Yes |
| 713-633 | HOUSTON | 9533 | — | — |
| 713-634 | HOUSTON | 9533 | — | Yes |
| 713-635 | HOUSTON | 9533 | — | Yes |
| 713-636 | HOUSTON | 9533 | — | Yes |
| 713-637 | HOUSTON | 9533 | — | Yes |
| 713-638 | HOUSTON | 9533 | — | — |
| 713-639 | HOUSTON | 9533 | — | — |
| 713-640 | HOUSTON | 9533 | — | Yes |
| 713-641 | HOUSTON | 9533 | — | — |
| 713-643 | HOUSTON | 9533 | — | — |
| 713-644 | HOUSTON | 9533 | — | — |
| 713-645 | HOUSTON | 9533 | — | — |
| 713-646 | HOUSTON | 9533 | — | — |
| 713-647 | HOUSTON | 9533 | — | Yes |
| 713-649 | HOUSTON | 9533 | — | — |
| 713-650 | HOUSTON | 9533 | — | — |
| 713-651 | HOUSTON | 9533 | — | — |
| 713-652 | HOUSTON | 9533 | — | Yes |
| 713-653 | HOUSTON | 9533 | — | Yes |
| 713-654 | HOUSTON | 9533 | — | — |
| 713-655 | HOUSTON | 9533 | — | — |
| 713-656 | HOUSTON | 9533 | — | — |
| 713-657 | HOUSTON | 9533 | — | Yes |
| 713-658 | HOUSTON | 9533 | — | Yes |
| 713-659 | HOUSTON | 9533 | — | Yes |
| 713-660 | HOUSTON | 9533 | — | Yes |
| 713-661 | HOUSTON | 9533 | — | — |
| 713-662 | HOUSTON | 9533 | — | — |
| 713-663 | HOUSTON | 9533 | — | — |
| 713-664 | HOUSTON | 9533 | — | — |
| 713-665 | HOUSTON | 9533 | — | Yes |
| 713-666 | HOUSTON | 9533 | — | — |
| 713-667 | HOUSTON | 9533 | — | — |
| 713-668 | HOUSTON | 9533 | — | — |
| 713-669 | HOUSTON | 9533 | — | — |
| 713-670 | HOUSTON | 9533 | — | Yes |
| 713-671 | HOUSTON | 9533 | — | — |
| 713-672 | HOUSTON | 9533 | — | — |
| 713-673 | HOUSTON | 9533 | — | Yes |
| 713-674 | HOUSTON | 9533 | — | — |
| 713-675 | HOUSTON | 9533 | — | — |
| 713-676 | HOUSTON | 9533 | — | — |
| 713-677 | HOUSTON | 9533 | — | Yes |
| 713-678 | HOUSTON | 9533 | — | Yes |
| 713-679 | HOUSTON | 9533 | — | Yes |
| 713-680 | HOUSTON | 9533 | — | — |
| 713-681 | HOUSTON | 9533 | — | — |
| 713-682 | HOUSTON | 9533 | — | Yes |
| 713-683 | HOUSTON | 9533 | — | — |
| 713-684 | HOUSTON | 9533 | — | Yes |
| 713-685 | HOUSTON | 9533 | — | — |
| 713-686 | HOUSTON | 9533 | — | — |
| 713-688 | HOUSTON | 9533 | — | — |
| 713-689 | HOUSTON | 9533 | — | Yes |
| 713-690 | HOUSTON | 9533 | — | — |
| 713-691 | HOUSTON | 9533 | — | Yes |
| 713-692 | HOUSTON | 9533 | — | — |
| 713-693 | HOUSTON | 9533 | — | — |
| 713-694 | HOUSTON | 9533 | — | — |
| 713-695 | HOUSTON | 9533 | — | — |
| 713-696 | HOUSTON | 9533 | — | Yes |
| 713-697 | HOUSTON | 9533 | — | — |
| 713-699 | HOUSTON | 9533 | — | — |
| 713-701 | HOUSTON | 9533 | — | Yes |
| 713-704 | HOUSTON | 9533 | — | — |
| 713-706 | HOUSTON | 9533 | — | — |
| 713-715 | HOUSTON | 9533 | — | Yes |
| 713-718 | HOUSTON | 9533 | — | — |
| 713-721 | HOUSTON | 9533 | — | — |
| 713-722 | HOUSTON | 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.