SPOK, INC.
62 prefixes in 713 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 713-200 | HOUSTON | 6630 | — | — |
| 713-279 | HOUSTON | 6630 | — | — |
| 713-288 | HOUSTON | 6630 | — | — |
| 713-310 | HOUSTON | 6630 | — | — |
| 713-318 | HOUSTON | 6630 | — | — |
| 713-326 | HOUSTON | 6630 | — | — |
| 713-327 | HOUSTON | 6630 | — | — |
| 713-404 | HOUSTON | 6630 | — | — |
| 713-406 | HOUSTON | 6630 | — | — |
| 713-415 | HOUSTON | 6630 | — | — |
| 713-506 | HOUSTON | 6630 | — | — |
| 713-508 | HOUSTON | 6630 | — | — |
| 713-509 | HOUSTON | 6630 | — | — |
| 713-549 | HOUSTON | 6630 | — | — |
| 713-593 | HOUSTON | 6630 | — | — |
| 713-601 | HOUSTON | 6630 | — | — |
| 713-603 | HOUSTON | 6630 | — | — |
| 713-604 | HOUSTON | 6630 | — | — |
| 713-605 | HOUSTON | 6630 | — | — |
| 713-606 | HOUSTON | 6630 | — | — |
| 713-607 | HOUSTON | 6630 | — | — |
| 713-608 | HOUSTON | 6630 | — | — |
| 713-616 | HOUSTON | 6630 | — | — |
| 713-617 | HOUSTON | 6630 | — | — |
| 713-618 | HOUSTON | 6630 | — | — |
| 713-619 | HOUSTON | 6630 | — | — |
| 713-642 | HOUSTON | 6630 | — | — |
| 713-648 | HOUSTON | 6630 | — | — |
| 713-687 | HOUSTON | 6630 | — | — |
| 713-698 | HOUSTON | 6630 | — | — |
| 713-707 | HOUSTON | 6630 | — | — |
| 713-708 | HOUSTON | 6630 | — | — |
| 713-709 | HOUSTON | 6630 | — | — |
| 713-710 | HOUSTON | 6630 | — | — |
| 713-712 | HOUSTON | 6630 | — | — |
| 713-716 | HOUSTON | 6630 | — | — |
| 713-717 | HOUSTON | 6630 | — | — |
| 713-719 | HOUSTON | 6630 | — | — |
| 713-720 | HOUSTON | 6630 | — | — |
| 713-736 | HOUSTON | 6630 | — | — |
| 713-760 | HOUSTON | 6630 | — | — |
| 713-761 | HOUSTON | 6630 | — | — |
| 713-762 | HOUSTON | 6630 | — | — |
| 713-763 | HOUSTON | 6630 | — | — |
| 713-764 | HOUSTON | 6630 | — | — |
| 713-765 | HOUSTON | 6630 | — | — |
| 713-768 | HOUSTON | 6630 | — | — |
| 713-786 | HOUSTON | 6630 | — | — |
| 713-801 | HOUSTON | 6630 | — | — |
| 713-809 | HOUSTON | 6630 | — | — |
| 713-813 | HOUSTON | 6630 | — | — |
| 713-833 | HOUSTON | 6630 | — | — |
| 713-841 | HOUSTON | 6630 | — | — |
| 713-846 | HOUSTON | 6630 | — | — |
| 713-883 | HOUSTON | 6630 | — | — |
| 713-891 | HOUSTON | 6630 | — | — |
| 713-901 | HOUSTON | 6630 | — | — |
| 713-905 | HOUSTON | 6630 | — | — |
| 713-915 | HOUSTON | 6630 | — | — |
| 713-916 | HOUSTON | 6630 | — | — |
| 713-971 | HOUSTON | 6630 | — | — |
| 713-990 | HOUSTON | 6630 | — | — |
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.