SOUTHWESTERN BELL
110 prefixes in 915 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 915-887 | EL PASO | 9533 | — | Yes |
| 915-921 | EL PASO | 9533 | — | Yes |
| 915-922 | EL PASO | 9533 | — | Yes |
| 915-926 | EL PASO | 9533 | 2001-10-22 | Yes |
| 915-937 | EL PASO | 9533 | 2001-06-25 | — |
| 915-938 | CLINT | 9533 | 2007-08-01 | Yes |
| 915-954 | XXXXXXXXXX | 9533 | — | — |
| 915-957 | XXXXXXXXXX | 9533 | — | — |
| 915-970 | XXXXXXXXXX | 9533 | — | — |
| 915-979 | EL PASO | 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.