PACIFIC BELL
126 prefixes in 831 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 831-242 | MONTEREY | 9740 | — | Yes |
| 831-333 | MONTEREY | 9740 | — | Yes |
| 831-335 | FELTON | 9740 | — | — |
| 831-336 | BEN LOMOND | 9740 | — | Yes |
| 831-338 | BOULDERCRK | 9740 | — | Yes |
| 831-372 | MONTEREY | 9740 | — | — |
| 831-373 | MONTEREY | 9740 | — | — |
| 831-375 | MONTEREY | 9740 | — | — |
| 831-382 | SAN LUCAS | 9740 | — | Yes |
| 831-384 | MONTEREY | 9740 | — | — |
| 831-385 | KING CITY | 9740 | — | — |
| 831-386 | KING CITY | 9740 | — | Yes |
| 831-392 | MONTEREY | 9740 | — | Yes |
| 831-393 | MONTEREY | 9740 | — | Yes |
| 831-394 | MONTEREY | 9740 | — | — |
| 831-420 | SANTA CRUZ | 9740 | — | Yes |
| 831-421 | SANTA CRUZ | 9740 | — | Yes |
| 831-422 | SALINAS | 9740 | — | — |
| 831-423 | SANTA CRUZ | 9740 | — | — |
| 831-424 | SALINAS | 9740 | — | — |
| 831-425 | SANTA CRUZ | 9740 | — | Yes |
| 831-426 | SANTA CRUZ | 9740 | — | — |
| 831-427 | SANTA CRUZ | 9740 | — | Yes |
| 831-429 | SANTA CRUZ | 9740 | — | — |
| 831-430 | SANTA CRUZ | 9740 | — | Yes |
| 831-431 | SANTA CRUZ | 9740 | — | Yes |
| 831-435 | SANTA CRUZ | 9740 | — | Yes |
| 831-438 | SANTA CRUZ | 9740 | — | — |
| 831-439 | SANTA CRUZ | 9740 | — | Yes |
| 831-440 | SANTA CRUZ | 9740 | — | Yes |
| 831-442 | SALINAS | 9740 | — | Yes |
| 831-443 | SALINAS | 9740 | — | — |
| 831-444 | SALINAS | 9740 | — | Yes |
| 831-449 | SALINAS | 9740 | — | — |
| 831-454 | SANTA CRUZ | 9740 | — | Yes |
| 831-455 | SALINAS | 9740 | — | Yes |
| 831-457 | SANTA CRUZ | 9740 | — | — |
| 831-458 | SANTA CRUZ | 9740 | — | — |
| 831-459 | SANTA CRUZ | 9740 | — | — |
| 831-460 | SANTA CRUZ | 9740 | — | Yes |
| 831-461 | SANTA CRUZ | 9740 | — | Yes |
| 831-462 | SANTA CRUZ | 9740 | — | — |
| 831-464 | SANTA CRUZ | 9740 | — | — |
| 831-465 | SANTA CRUZ | 9740 | — | Yes |
| 831-466 | SANTA CRUZ | 9740 | — | Yes |
| 831-469 | SANTA CRUZ | 9740 | — | Yes |
| 831-471 | SANTA CRUZ | 9740 | — | Yes |
| 831-475 | SANTA CRUZ | 9740 | — | — |
| 831-476 | SANTA CRUZ | 9740 | — | — |
| 831-477 | SANTA CRUZ | 9740 | — | Yes |
| 831-479 | SANTA CRUZ | 9740 | — | — |
| 831-484 | SALINAS | 9740 | — | Yes |
| 831-502 | SANTA CRUZ | 9740 | — | — |
| 831-575 | SANTA CRUZ | 9740 | — | — |
| 831-582 | MONTEREY | 9740 | — | Yes |
| 831-583 | MONTEREY | 9740 | — | Yes |
| 831-620 | CARMEL | 9740 | — | Yes |
| 831-622 | CARMEL | 9740 | — | — |
| 831-623 | SAN JUAN | 9740 | — | Yes |
| 831-624 | CARMEL | 9740 | — | — |
| 831-625 | CARMEL | 9740 | — | — |
| 831-626 | CARMEL | 9740 | — | — |
| 831-627 | SAN ARDO | 9740 | — | Yes |
| 831-628 | TRES PINOS | 9740 | — | Yes |
| 831-630 | HOLLISTER | 9740 | — | Yes |
| 831-632 | CASTROVL | 9740 | — | Yes |
| 831-633 | CASTROVL | 9740 | — | Yes |
| 831-634 | HOLLISTER | 9740 | — | Yes |
| 831-635 | HOLLISTER | 9740 | — | Yes |
| 831-636 | HOLLISTER | 9740 | — | — |
| 831-637 | HOLLISTER | 9740 | — | — |
| 831-638 | HOLLISTER | 9740 | — | — |
| 831-641 | MONTEREY | 9740 | — | Yes |
| 831-642 | MONTEREY | 9740 | — | — |
| 831-643 | MONTEREY | 9740 | — | Yes |
| 831-644 | MONTEREY | 9740 | — | — |
| 831-645 | MONTEREY | 9740 | — | — |
| 831-646 | MONTEREY | 9740 | — | — |
| 831-647 | MONTEREY | 9740 | — | — |
| 831-648 | MONTEREY | 9740 | — | — |
| 831-649 | MONTEREY | 9740 | — | Yes |
| 831-655 | MONTEREY | 9740 | — | — |
| 831-656 | MONTEREY | 9740 | — | Yes |
| 831-657 | MONTEREY | 9740 | — | Yes |
| 831-658 | MONTEREY | 9740 | — | — |
| 831-659 | CARMEL VLY | 9740 | — | Yes |
| 831-661 | APTOS | 9740 | — | Yes |
| 831-662 | APTOS | 9740 | — | — |
| 831-663 | SALINAS | 9740 | — | Yes |
| 831-667 | BIG SUR | 9740 | — | Yes |
| 831-674 | GREENFIELD | 9740 | — | Yes |
| 831-675 | GONZALES | 9740 | — | Yes |
| 831-678 | SOLEDAD | 9740 | — | — |
| 831-679 | CHUALAR | 9740 | — | Yes |
| 831-684 | APTOS | 9740 | — | Yes |
| 831-685 | APTOS | 9740 | — | — |
| 831-687 | APTOS | 9740 | — | Yes |
| 831-688 | APTOS | 9740 | — | — |
| 831-689 | APTOS | 9740 | — | Yes |
| 831-722 | WATSONVL | 9740 | — | — |
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.