All assignees
456 prefixes in 636 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 636-430 | FORISTELL | 6529 | 2025-05-05 | Yes |
| 636-431 | VALLEYPARK | 7432 | — | Yes |
| 636-432 | WASHINGTON | 9533 | 2006-01-10 | Yes |
| 636-433 | MARTHASVL | 9787 | — | Yes |
| 636-434 | PORTAGSIUX | 9533 | 2001-07-05 | Yes |
| 636-435 | VALLEYPARK | 7432 | — | Yes |
| 636-438 | MANCHESTER | 7432 | — | Yes |
| 636-439 | OFALLON | 6534 | 2011-01-14 | Yes |
| 636-441 | HARVESTER | 9533 | — | — |
| 636-442 | HARVESTER | 9533 | — | Yes |
| 636-443 | ST CHARLES | 9533 | — | Yes |
| 636-444 | VALLEYPARK | 093F | — | Yes |
| 636-445 | WENTZVILLE | 508J | 2012-11-13 | Yes |
| 636-447 | HARVESTER | 9533 | — | — |
| 636-448 | ST CHARLES | 6534 | — | — |
| 636-449 | CHESTERFLD | 829J | — | Yes |
| 636-450 | HARVESTER | 6534 | 2025-05-09 | Yes |
| 636-451 | GRAYSUMMIT | 9533 | — | Yes |
| 636-452 | WARE | 9533 | — | Yes |
| 636-456 | WARRENTON | 9787 | — | — |
| 636-458 | POND | 9533 | — | — |
| 636-459 | FORISTELL | 5814 | — | Yes |
| 636-461 | IMPERIAL | 9533 | — | Yes |
| 636-462 | TROY | 9787 | — | Yes |
| 636-463 | FORISTELL | 9787 | — | Yes |
| 636-464 | IMPERIAL | 9533 | — | — |
| 636-465 | FSSCRSTLCY | 792K | 2006-11-07 | Yes |
| 636-466 | WENTZVILLE | 6534 | 2008-03-28 | Yes |
| 636-467 | IMPERIAL | 9533 | — | Yes |
| 636-470 | OFALLON | 0051 | 2026-05-13 | — |
| 636-473 | ANTONIA | 7421 | 2025-07-24 | Yes |
| 636-474 | OFALLON | 9787 | — | Yes |
| 636-475 | HERCUMPVLY | 9533 | — | Yes |
| 636-477 | HARVESTER | 9533 | — | Yes |
| 636-479 | HERCUMPVLY | 9533 | — | Yes |
| 636-481 | HILLSBORO | 4932 | 2001-07-05 | Yes |
| 636-482 | AUGUSTA | 9787 | — | Yes |
| 636-484 | MANCHESTER | 5814 | — | Yes |
| 636-485 | ST PETERS | 5814 | — | — |
| 636-486 | HARVESTER | 4932 | 2002-08-26 | Yes |
| 636-487 | ST CHARLES | 4932 | 2002-08-26 | Yes |
| 636-488 | JONESBURG | 9787 | — | Yes |
| 636-489 | CHESTERFLD | 4932 | — | Yes |
| 636-492 | FENTON | 7432 | — | Yes |
| 636-493 | ST CHARLES | 792K | — | Yes |
| 636-494 | EUREKA | 093F | 2026-07-30 | Yes |
| 636-495 | HIGH RIDGE | 829J | 2013-08-19 | Yes |
| 636-496 | FENTON | 9533 | 2008-10-10 | Yes |
| 636-497 | WENTZVILLE | 6529 | — | Yes |
| 636-498 | HARVESTER | 9533 | — | Yes |
| 636-500 | IMPERIAL | 093F | — | Yes |
| 636-511 | XXXXXXXXXX | MULT | — | — |
| 636-515 | OFALLON | 6534 | 2014-01-27 | Yes |
| 636-517 | VALLEYPARK | 9533 | 2001-07-05 | Yes |
| 636-519 | CHESTERFLD | 9533 | — | — |
| 636-524 | FSSCRSTLCY | 4932 | 2002-03-13 | Yes |
| 636-525 | IMPERIAL | 9533 | 2001-07-05 | Yes |
| 636-526 | HARVESTER | 093F | 2026-08-26 | Yes |
| 636-527 | MANCHESTER | 9533 | — | — |
| 636-528 | TROY | 9787 | — | — |
| 636-529 | VALLEYPARK | 9533 | — | Yes |
| 636-530 | CHESTERFLD | 9533 | — | — |
| 636-532 | CHESTERFLD | 9533 | — | — |
| 636-533 | FENTON | 7432 | — | — |
| 636-534 | CHESTERFLD | 7432 | — | Yes |
| 636-535 | FSSCRSTLCY | 5814 | 2014-11-10 | Yes |
| 636-536 | CHESTERFLD | 9533 | — | Yes |
| 636-537 | CHESTERFLD | 9533 | — | — |
| 636-538 | WENTZVILLE | 6529 | — | Yes |
| 636-541 | ST CHARLES | 6534 | 2001-06-08 | Yes |
| 636-542 | OFALLON | 829J | 2007-06-19 | Yes |
| 636-543 | FSSCRSTLCY | 7218 | 2009-07-08 | Yes |
| 636-544 | OFALLON | 6534 | 2002-03-20 | Yes |
| 636-547 | IMPERIAL | 4932 | — | Yes |
| 636-548 | MAXVILLE | 993E | — | Yes |
| 636-549 | EUREKA | 829J | — | Yes |
| 636-551 | CEDAR HILL | 5814 | 2014-03-17 | Yes |
| 636-552 | MANCHESTER | 4932 | — | Yes |
| 636-555 | DIR ASST | MULT | — | — |
| 636-556 | VALLEYPARK | 093F | — | Yes |
| 636-557 | MANCHESTER | 7432 | — | Yes |
| 636-561 | DARDENNE | 9787 | — | — |
| 636-565 | DE SOTO | 4932 | 2002-02-27 | Yes |
| 636-566 | WINFIELD | 9787 | — | Yes |
| 636-573 | ST CHARLES | 7432 | — | — |
| 636-574 | ST CHARLES | 9748 | — | — |
| 636-575 | HIGH RIDGE | 6534 | 2001-11-12 | Yes |
| 636-577 | ST PETERS | 6534 | 2002-03-20 | Yes |
| 636-578 | ST CHARLES | 6529 | 2001-02-02 | Yes |
| 636-579 | CHESTERFLD | 6529 | 2001-01-26 | Yes |
| 636-582 | UNION | 506E | 2008-06-05 | Yes |
| 636-583 | UNION | 9533 | — | — |
| 636-584 | UNION | 9533 | — | Yes |
| 636-585 | HIGH HILL | 9787 | — | Yes |
| 636-586 | DE SOTO | 9533 | — | — |
| 636-587 | EUREKA | 9533 | — | Yes |
| 636-589 | WARRENTON | 093F | 2022-11-15 | Yes |
| 636-590 | CHESTERFLD | 4932 | — | Yes |
| 636-591 | MANCHESTER | 829J | — | Yes |
| 636-594 | MANCHESTER | 7432 | — | 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.