SOUTHWESTERN BELL
302 prefixes in 817 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 817-978 | FORT WORTH | 9533 | — | — |
| 817-989 | FORT WORTH | 9533 | — | 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.