All assignees
719 prefixes in 620 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 620-401 | LEOTI | 6534 | 2009-12-01 | Yes |
| 620-402 | WINFIELD | 2240 | — | Yes |
| 620-403 | CANEY | 205F | — | Yes |
| 620-404 | PITTSBURG | 6267 | — | Yes |
| 620-405 | LA HARPE | 6532 | 2008-04-15 | Yes |
| 620-406 | TREECE | 478J | 2020-08-28 | Yes |
| 620-407 | MEADE | 7593 | 2016-12-15 | Yes |
| 620-408 | DODGE CITY | 9533 | — | Yes |
| 620-409 | KIOWA | 6532 | 2009-02-06 | Yes |
| 620-410 | SYLVIA | 122D | 2009-03-12 | Yes |
| 620-411 | XXXXXXXXXX | MULT | — | — |
| 620-412 | EMPORIA | 9533 | 2002-04-04 | Yes |
| 620-413 | HUDSON | 205F | 2019-08-08 | Yes |
| 620-414 | CHERRYVALE | 8995 | 2010-03-02 | Yes |
| 620-415 | DEXTER | 6532 | 2001-01-29 | Yes |
| 620-416 | HILLSBORO | 433H | 2020-10-09 | Yes |
| 620-417 | LIBERAL | 9533 | 2007-05-23 | Yes |
| 620-418 | FORT SCOTT | 6529 | 2021-02-12 | Yes |
| 620-419 | PRATT | 6529 | 2021-02-12 | Yes |
| 620-420 | KINSLEY | 925G | 2021-03-02 | Yes |
| 620-421 | PARSONS | 9533 | — | — |
| 620-422 | NICKERSON | 9533 | — | Yes |
| 620-423 | PARSONS | 9533 | — | Yes |
| 620-424 | ULYSSES | 1817 | — | — |
| 620-425 | COFFEYVL | 6701 | — | Yes |
| 620-426 | DEERFIELD | 1817 | — | Yes |
| 620-427 | MADISON | 1801 | — | — |
| 620-428 | HUGOTON | 1817 | — | Yes |
| 620-429 | COLUMBUS | 1756 | — | Yes |
| 620-430 | DODGE CITY | 6534 | — | Yes |
| 620-431 | CHANUTE | 9533 | — | — |
| 620-432 | CHANUTE | 9533 | — | Yes |
| 620-433 | CHANUTE | 9533 | — | Yes |
| 620-434 | MAYFIELD | 1788 | — | — |
| 620-435 | ARGONIA | 1780 | — | — |
| 620-436 | LAKIN | 401D | 2006-12-19 | Yes |
| 620-437 | MADISON | 1801 | — | Yes |
| 620-438 | BURDEN | 1833 | — | Yes |
| 620-439 | KINCAID | 1842 | — | Yes |
| 620-440 | WELLINGTON | 6532 | 2002-10-17 | Yes |
| 620-441 | ARKANSASCY | 9533 | — | Yes |
| 620-442 | ARKANSASCY | 9533 | — | — |
| 620-443 | AMERICUS | 1816 | — | — |
| 620-444 | GARDENCITY | 965H | 2019-01-28 | Yes |
| 620-445 | LAFONTAINE | 2240 | 2014-04-07 | Yes |
| 620-446 | ARKANSASCY | 9533 | — | Yes |
| 620-447 | GEUDA SPG | 1788 | — | — |
| 620-448 | PARSONS | 6701 | 2016-05-27 | Yes |
| 620-449 | ST PAUL | 9533 | — | Yes |
| 620-450 | PRATT | 9533 | — | Yes |
| 620-451 | SYRACUSE | 6532 | 2006-10-23 | Yes |
| 620-452 | ALBERT | 6532 | 2008-03-19 | Yes |
| 620-453 | HUGOTON | 6532 | 2005-04-04 | Yes |
| 620-454 | ARKANSASCY | 6529 | 2022-07-22 | Yes |
| 620-455 | OXFORD | 1810 | — | Yes |
| 620-456 | CONWAY SPG | 1780 | — | — |
| 620-457 | CHEROKEE | 1818 | — | — |
| 620-458 | HUDSON | 1810 | — | Yes |
| 620-459 | PRETTYPRRI | 1810 | — | Yes |
| 620-460 | TYRO | 5562 | 2021-05-04 | Yes |
| 620-461 | GALENA | 342H | 2014-06-24 | Yes |
| 620-462 | PARTRIDGE | 122D | 2009-03-12 | Yes |
| 620-463 | BURRTON | 1842 | — | Yes |
| 620-464 | COFFEYVL | 9533 | — | Yes |
| 620-465 | HAVEN | 1842 | — | — |
| 620-466 | HAVEN | 014E | 2011-05-05 | Yes |
| 620-467 | CAMBRIDGE | 1833 | — | Yes |
| 620-468 | PIQUA | 1810 | — | Yes |
| 620-469 | ARKANSASCY | 6529 | 2021-05-14 | Yes |
| 620-470 | LANGDON | 205F | 2019-08-08 | Yes |
| 620-471 | DODGE CITY | 925G | 2015-04-28 | Yes |
| 620-472 | GRIDLEY | 593K | 2016-11-22 | Yes |
| 620-473 | HUMBOLDT | 9533 | — | Yes |
| 620-474 | HUTCHINSON | 6529 | — | Yes |
| 620-475 | OLPE | 1847 | — | — |
| 620-476 | ROSALIA | 1833 | — | Yes |
| 620-477 | HUMBOLDT | 321J | 2021-05-20 | Yes |
| 620-478 | NORWICH | 1780 | — | — |
| 620-479 | SCAMMON | 1812 | — | Yes |
| 620-480 | MCPHERSON | 6529 | — | Yes |
| 620-481 | EMPORIA | 6701 | — | Yes |
| 620-482 | LIBERAL | 9533 | — | Yes |
| 620-483 | LEHIGH | 1810 | — | Yes |
| 620-484 | BUHLER | 205F | 2021-01-12 | Yes |
| 620-485 | LIBERTY | 2030 | — | — |
| 620-486 | SYLVIA | 1810 | — | — |
| 620-487 | EMPORIA | 7421 | — | Yes |
| 620-488 | BELLEPLAIN | 1810 | — | Yes |
| 620-489 | WINDOM | 1810 | — | Yes |
| 620-490 | BURLINGTON | 6267 | 2001-06-20 | Yes |
| 620-491 | KINGMAN | 6532 | 2003-06-11 | Yes |
| 620-492 | JOHNSON | 1817 | — | Yes |
| 620-493 | MANTER | 1817 | — | — |
| 620-494 | BURNS | 205F | 2021-01-12 | Yes |
| 620-495 | BIG BOW | 1817 | — | — |
| 620-496 | LA HARPE | 1791 | — | Yes |
| 620-497 | TURON | 1831 | — | — |
| 620-498 | ALTAMONT | 205F | 2017-04-28 | Yes |
| 620-499 | SYRACUSE | 1817 | — | — |
| 620-500 | HUTCHINSON | 014E | 2007-05-14 | — |
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.