All assignees
800 prefixes in 323 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 323-400 | MONTEBELLO | 6006 | — | Yes |
| 323-401 | LSAN DA 14 | 6010 | 2001-09-19 | — |
| 323-402 | LSAN DA 11 | 899D | — | Yes |
| 323-403 | LSAN DA 12 | 6529 | — | Yes |
| 323-404 | LSAN DA 03 | 7240 | 2001-05-10 | Yes |
| 323-405 | LSAN DA 04 | 7240 | 2001-05-10 | Yes |
| 323-406 | LSAN DA 05 | 7240 | 2001-05-10 | Yes |
| 323-407 | LSAN DA 02 | 899D | 2011-01-19 | Yes |
| 323-408 | LSAN DA 14 | 899D | 2017-05-22 | Yes |
| 323-409 | LSAN DA 04 | 9740 | 2007-02-21 | Yes |
| 323-410 | LSAN DA 02 | 981E | — | Yes |
| 323-411 | XXXXXXXXXX | MULT | — | — |
| 323-412 | LSAN DA 02 | 981E | 2011-01-25 | Yes |
| 323-413 | LSAN DA 13 | 899D | 2011-03-01 | Yes |
| 323-414 | LSAN DA 03 | 6630 | — | — |
| 323-415 | LSAN DA 05 | 9740 | — | — |
| 323-416 | MONTEBELLO | 373F | 2012-04-16 | Yes |
| 323-417 | LSAN DA 06 | 649C | — | — |
| 323-418 | LSAN DA 09 | 9740 | — | Yes |
| 323-419 | LSAN DA 11 | 8826 | — | Yes |
| 323-420 | LSAN DA 09 | 9740 | — | Yes |
| 323-421 | LSAN DA 12 | 9740 | — | Yes |
| 323-422 | LSAN DA 14 | 6006 | — | — |
| 323-423 | LSAN DA 03 | 7718 | — | Yes |
| 323-424 | LSAN DA 13 | 516C | — | Yes |
| 323-425 | LSAN DA 06 | 899D | 2011-04-22 | Yes |
| 323-426 | LSAN DA 02 | 899D | 2011-06-29 | Yes |
| 323-427 | MONTEBELLO | 899D | 2011-04-22 | Yes |
| 323-428 | LSAN DA 14 | 6010 | — | — |
| 323-429 | LSAN DA 14 | 6967 | — | — |
| 323-430 | MONTEBELLO | 6006 | 2013-02-27 | Yes |
| 323-431 | LSAN DA 12 | 8826 | — | Yes |
| 323-432 | LSAN DA 08 | 671J | — | Yes |
| 323-433 | LSAN DA 13 | 649C | — | Yes |
| 323-434 | MONTEBELLO | 6010 | 2007-03-28 | Yes |
| 323-435 | LSAN DA 06 | 981E | 2011-07-01 | Yes |
| 323-436 | LSAN DA 14 | 9740 | — | — |
| 323-437 | MONTEBELLO | 899D | 2012-11-21 | Yes |
| 323-438 | LSAN DA 06 | 981E | 2011-11-21 | Yes |
| 323-439 | MONTEBELLO | 899D | 2007-04-04 | Yes |
| 323-440 | MONTEBELLO | 6010 | — | — |
| 323-441 | LSAN DA 04 | 9740 | — | Yes |
| 323-442 | LSAN DA 04 | 7534 | — | Yes |
| 323-443 | LSAN DA 03 | 981E | — | Yes |
| 323-444 | LSAN DA 06 | 9262 | — | Yes |
| 323-445 | LSAN DA 14 | 899D | 2002-01-29 | Yes |
| 323-446 | LSAN DA 05 | 7229 | — | Yes |
| 323-447 | LSAN DA 14 | 6010 | 2002-01-29 | — |
| 323-448 | LSAN DA 09 | 6529 | — | Yes |
| 323-449 | LSAN DA 14 | 6010 | — | — |
| 323-450 | LSAN DA 14 | 671J | — | Yes |
| 323-451 | LSAN DA 09 | 671J | — | Yes |
| 323-452 | LSAN DA 13 | 793K | 2012-05-30 | Yes |
| 323-453 | MONTEBELLO | 899D | 2013-01-14 | Yes |
| 323-454 | LSAN DA 02 | 671J | — | Yes |
| 323-455 | LSAN DA 09 | 6529 | 2007-04-24 | Yes |
| 323-456 | LSAN DA 13 | 671J | — | Yes |
| 323-457 | LSAN DA 06 | 8826 | 2013-12-19 | Yes |
| 323-458 | MONTEBELLO | 899D | 2012-03-02 | Yes |
| 323-459 | LSAN DA 14 | 6010 | — | — |
| 323-460 | LSAN DA 14 | 9740 | — | — |
| 323-461 | LSAN DA 14 | 9740 | — | — |
| 323-462 | LSAN DA 14 | 9740 | — | — |
| 323-463 | LSAN DA 14 | 9740 | — | — |
| 323-464 | LSAN DA 14 | 9740 | — | — |
| 323-465 | LSAN DA 14 | 9740 | — | — |
| 323-466 | LSAN DA 14 | 9740 | — | — |
| 323-467 | LSAN DA 14 | 9740 | — | — |
| 323-468 | LSAN DA 14 | 9740 | — | — |
| 323-469 | LSAN DA 14 | 9740 | — | — |
| 323-470 | LSAN DA 03 | 6529 | 2007-05-18 | Yes |
| 323-471 | LSAN DA 14 | 649C | — | Yes |
| 323-472 | LSAN DA 14 | 8826 | — | Yes |
| 323-473 | LSAN DA 02 | 8826 | — | Yes |
| 323-474 | LSAN DA 03 | 7240 | 2001-05-10 | Yes |
| 323-475 | LSAN DA 05 | 7240 | 2001-05-10 | Yes |
| 323-476 | LSAN DA 06 | 7240 | 2001-05-10 | Yes |
| 323-477 | MONTEBELLO | 899D | 2012-07-13 | Yes |
| 323-478 | LSAN DA 03 | 9740 | — | Yes |
| 323-479 | MONTEBELLO | 899D | 2007-06-07 | Yes |
| 323-480 | MONTEBELLO | 6006 | 2012-08-13 | Yes |
| 323-481 | LSAN DA 14 | 899D | 2001-10-18 | Yes |
| 323-482 | MONTEBELLO | 6006 | 2005-10-11 | Yes |
| 323-483 | MONTEBELLO | 899D | 2012-10-01 | Yes |
| 323-484 | LSAN DA 06 | 793K | 2013-06-13 | Yes |
| 323-485 | MONTEBELLO | 8826 | 2006-03-08 | Yes |
| 323-486 | LSAN DA 02 | 981E | 2012-12-03 | Yes |
| 323-487 | LSAN DA 06 | 981E | 2012-11-07 | Yes |
| 323-488 | LSAN DA 05 | 981E | — | Yes |
| 323-489 | LSAN DA 02 | 899D | 2013-08-02 | Yes |
| 323-490 | MONTEBELLO | 7240 | 2001-05-10 | Yes |
| 323-491 | LSAN DA 14 | 7139 | — | Yes |
| 323-492 | LSAN DA 09 | 7718 | — | Yes |
| 323-493 | LSAN DA 14 | 6006 | — | — |
| 323-494 | MONTEBELLO | 899D | 2007-06-07 | Yes |
| 323-495 | LSAN DA 02 | 6529 | — | Yes |
| 323-496 | LSAN DA 06 | 6006 | — | — |
| 323-497 | LSAN DA 14 | 6006 | — | — |
| 323-498 | LSAN DA 14 | 508J | 2013-02-01 | Yes |
| 323-499 | LSAN DA 14 | 6529 | — | 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.