All assignees
485 prefixes in 308 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 308-401 | LYMAN | 549E | 2021-03-12 | Yes |
| 308-402 | — | — | ||
| 308-403 | GRAND IS | 073H | 2021-03-15 | Yes |
| 308-405 | COZAD | 6534 | 2021-05-06 | Yes |
| 308-406 | VENANGO | 6534 | 2021-08-12 | Yes |
| 308-407 | RIVERDALE | 995E | 2021-05-07 | Yes |
| 308-408 | LEXINGTON | 624H | 2023-02-21 | Yes |
| 308-409 | RAVENNA | 995E | 2021-05-07 | Yes |
| 308-410 | BRADY | 6534 | 2021-06-16 | Yes |
| 308-411 | XXXXXXXXXX | MULT | — | — |
| 308-412 | EUSTIS | 6534 | 2021-06-16 | Yes |
| 308-413 | THEDFORD | 6534 | 2021-06-16 | Yes |
| 308-414 | IMPERIAL | 6263 | 2005-04-15 | Yes |
| 308-416 | CURTIS | 6534 | 2021-06-16 | Yes |
| 308-417 | STAPLETON | 6534 | 2021-08-12 | Yes |
| 308-419 | SODTOWN | 6534 | 2022-09-23 | Yes |
| 308-420 | BENKELMAN | 2455 | — | — |
| 308-422 | WILSONVL | 6534 | 2020-10-15 | Yes |
| 308-423 | BENKELMAN | 2455 | — | — |
| 308-424 | MITCHELL | 792K | 2009-08-25 | Yes |
| 308-425 | FRANKLIN | 1128 | — | — |
| 308-428 | GREELEY | 1128 | — | — |
| 308-430 | CHADRON | 5807 | — | Yes |
| 308-431 | FARNAM | 6534 | 2021-06-16 | Yes |
| 308-432 | CHADRON | 9631 | — | Yes |
| 308-435 | MERNA | 6534 | 2021-06-16 | Yes |
| 308-436 | GERING | 4530 | — | — |
| 308-437 | INDIANOLA | 6534 | 2021-08-12 | Yes |
| 308-438 | AMHERST | 549E | 2021-05-07 | Yes |
| 308-439 | MINATARE | 792K | 2009-08-19 | Yes |
| 308-440 | KEARNEY | 5807 | — | — |
| 308-441 | NO BURWELL | 6534 | 2021-06-16 | Yes |
| 308-442 | MAYWOOD | 6534 | 2021-06-16 | Yes |
| 308-444 | AXTELL | 549E | 2025-12-22 | Yes |
| 308-445 | NO JULESBG | 9636 | — | — |
| 308-446 | LITCHFIELD | 1574 | — | — |
| 308-447 | VENANGO | 1577 | — | — |
| 308-451 | CALLAWAY | 6534 | 2021-08-12 | Yes |
| 308-452 | RAVENNA | 1574 | — | — |
| 308-453 | SO ARDMORE | 1659 | — | — |
| 308-454 | MAXWELL | 6534 | 2021-06-16 | Yes |
| 308-455 | KEARNEY | 7229 | 2005-12-29 | Yes |
| 308-456 | MITCHELL | 3233 | 2021-06-29 | Yes |
| 308-457 | MILLER | 1128 | — | Yes |
| 308-458 | HYANNIS | 1532 | — | Yes |
| 308-460 | PALMER | 6534 | 2021-09-16 | Yes |
| 308-461 | NO LONG IS | 6534 | 2021-07-15 | Yes |
| 308-462 | PALISADE | 6534 | 2021-08-12 | Yes |
| 308-463 | TRENTON | 6534 | 2021-08-12 | Yes |
| 308-464 | OGALLALA | 6874 | — | — |
| 308-465 | OGALLALA | 3233 | 2022-03-18 | Yes |
| 308-466 | FRANKLIN | 5807 | 2022-08-08 | Yes |
| 308-467 | SODTOWN | 1590 | — | — |
| 308-468 | GIBBON | 1574 | — | — |
| 308-470 | FRANKLIN | 5807 | — | Yes |
| 308-471 | — | — | ||
| 308-472 | BERTRAND | 1128 | — | — |
| 308-473 | ORLEANS | 1128 | — | — |
| 308-474 | BERTRAND | 792K | 2016-09-21 | Yes |
| 308-475 | ORLEANS | 2309 | 2020-10-22 | Yes |
| 308-477 | WILCOX | 792K | 2021-03-04 | Yes |
| 308-478 | WILCOX | 1577 | — | — |
| 308-481 | HOLBROOK | 6534 | 2021-06-16 | Yes |
| 308-482 | CLARKS | 5807 | 2011-06-21 | Yes |
| 308-483 | LODGEPOLE | 1537 | — | — |
| 308-485 | CAIRO | 9631 | — | Yes |
| 308-486 | EUSTIS | 1562 | — | — |
| 308-487 | HEMINGFORD | 1558 | — | — |
| 308-489 | BROADWATER | 4530 | — | Yes |
| 308-491 | GRANT | 6534 | 2021-06-16 | Yes |
| 308-493 | HOLBROOK | 1516 | — | — |
| 308-495 | HERSHEY | 6534 | 2021-06-16 | Yes |
| 308-496 | NORTH LOUP | 1574 | — | — |
| 308-497 | SPALDING | 1577 | — | — |
| 308-508 | GRAND IS | 321J | 2026-06-17 | Yes |
| 308-509 | MADRID | 6534 | 2021-06-16 | Yes |
| 308-511 | XXXXXXXXXX | MULT | — | — |
| 308-520 | NO PLATTE | 5807 | — | — |
| 308-524 | SIDNEY | 7144 | — | Yes |
| 308-525 | SOOELRICHS | 1659 | — | — |
| 308-527 | SARGENT | 1574 | — | — |
| 308-528 | MINDEN | 6263 | 2003-01-30 | Yes |
| 308-529 | GOTHENBURG | 5807 | — | Yes |
| 308-530 | NO PLATTE | 5807 | — | — |
| 308-531 | — | — | ||
| 308-532 | NO PLATTE | 9631 | — | — |
| 308-533 | THEDFORD | 1532 | — | — |
| 308-534 | NO PLATTE | 9631 | — | — |
| 308-535 | NO PLATTE | 9631 | — | Yes |
| 308-536 | FULLERTON | 9631 | — | Yes |
| 308-537 | GOTHENBURG | 9631 | — | Yes |
| 308-538 | DUNNING | 1532 | — | — |
| 308-539 | NO PLATTE | 6263 | — | Yes |
| 308-541 | OCONTO | 6534 | 2021-08-12 | Yes |
| 308-544 | HYANNIS | 1532 | — | — |
| 308-545 | BAYARD | 792K | 2010-02-19 | Yes |
| 308-546 | MULLEN | 1532 | — | Yes |
| 308-547 | BREWSTER | 1532 | — | — |
| 308-548 | CLARKS | 1576 | — | — |
| 308-550 | FULLERTON | 5807 | — | 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.