All assignees
485 prefixes in 308 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 308-552 | HUNTLERGAN | 6534 | 2021-08-12 | Yes |
| 308-554 | GIBBON | 6534 | 2021-06-16 | Yes |
| 308-555 | DIR ASST | MULT | — | — |
| 308-558 | — | — | ||
| 308-562 | SCOTSBLUFF | 6010 | 2008-10-22 | Yes |
| 308-563 | HEARTWELL | 1128 | — | — |
| 308-566 | CHAPPELL | 5807 | 2006-04-18 | Yes |
| 308-567 | HUNTLERGAN | 1577 | — | — |
| 308-568 | NO PLATTE | 9631 | 2015-04-21 | Yes |
| 308-569 | FARNAM | 1516 | — | — |
| 308-571 | ST PAUL | 6263 | 2002-11-18 | Yes |
| 308-575 | SCOTSBLUFF | 792K | 2009-08-19 | Yes |
| 308-577 | HYANNIS | 1532 | — | — |
| 308-582 | MAXWELL | 1562 | — | — |
| 308-583 | WOOD RIVER | 9631 | — | Yes |
| 308-584 | BRADY | 1562 | — | — |
| 308-586 | BAYARD | 4530 | — | — |
| 308-587 | TRYON | 1577 | — | — |
| 308-588 | HYANNIS | 1532 | — | — |
| 308-589 | GRAND IS | 6263 | — | Yes |
| 308-594 | WOOD RIVER | 549E | 2007-01-12 | Yes |
| 308-599 | LITCHFIELD | 6534 | 2021-06-16 | Yes |
| 308-600 | GRAND IS | 883K | 2026-06-03 | Yes |
| 308-602 | CAMBRIDGE | 6534 | 2021-08-12 | Yes |
| 308-611 | XXXXXXXXXX | MULT | — | — |
| 308-615 | CHADRON | 5807 | 2002-05-21 | Yes |
| 308-623 | MITCHELL | 4530 | — | — |
| 308-624 | CENTRAL CY | 6263 | 2002-11-18 | Yes |
| 308-627 | KEARNEY | 5807 | 2002-04-25 | — |
| 308-628 | COMSTOCK | 1574 | — | — |
| 308-629 | ALLIANCE | 6874 | 2008-03-05 | Yes |
| 308-630 | SCOTSBLUFF | 4530 | — | — |
| 308-631 | SCOTSBLUFF | 5807 | — | — |
| 308-632 | SCOTSBLUFF | 4530 | — | — |
| 308-633 | SCOTSBLUFF | 907K | 2005-02-11 | — |
| 308-635 | SCOTSBLUFF | 4530 | — | — |
| 308-636 | STAPLETON | 1577 | — | Yes |
| 308-637 | SCOTSBLUFF | 6874 | — | — |
| 308-638 | HAYSPRINGS | 1577 | — | — |
| 308-639 | THEDFORD | 1532 | — | — |
| 308-640 | GOTHENBURG | 6874 | — | — |
| 308-641 | SCOTSBLUFF | 5807 | — | — |
| 308-643 | MERNA | 1532 | — | Yes |
| 308-645 | THEDFORD | 1532 | — | Yes |
| 308-646 | GRAND IS | 3233 | — | Yes |
| 308-647 | SHELTON | 1574 | — | — |
| 308-650 | NO PLATTE | 6874 | — | — |
| 308-651 | LEXINGTON | 6874 | — | — |
| 308-652 | NOWOODRUFF | 1826 | — | — |
| 308-653 | ERICSON | 1574 | — | — |
| 308-654 | BARTLETT | 1576 | — | — |
| 308-655 | ARAPAHOE | 5807 | 2006-01-27 | Yes |
| 308-660 | NO PLATTE | 5807 | 2002-05-23 | Yes |
| 308-661 | GRAND IS | 197D | 2019-09-19 | Yes |
| 308-663 | GRAND IS | 7144 | 2009-11-25 | Yes |
| 308-665 | CRAWFORD | 9631 | — | Yes |
| 308-667 | CRAWFORD | 9631 | — | Yes |
| 308-668 | HARRISON | 9631 | — | Yes |
| 308-672 | SCOTSBLUFF | 5807 | 2002-05-23 | — |
| 308-673 | BUSHNELL | 1537 | — | — |
| 308-675 | GRAND IS | 792K | 2007-10-31 | Yes |
| 308-682 | DIX | 1537 | — | — |
| 308-684 | MERRIMAN | 1577 | — | — |
| 308-687 | ST LIBORY | 9631 | — | Yes |
| 308-692 | BARTLEY | 1526 | — | — |
| 308-695 | MCCOOK | 4635 | — | — |
| 308-696 | NO PLATTE | 7816 | — | — |
| 308-697 | CAMBRIDGE | 1526 | — | — |
| 308-698 | KEARNEY | 7816 | — | — |
| 308-700 | — | — | ||
| 308-708 | KEARNEY | 6263 | 2002-10-15 | Yes |
| 308-711 | XXXXXXXXXX | MULT | — | — |
| 308-721 | ARNOLD | 6534 | 2021-08-12 | Yes |
| 308-726 | KEYSTONE | 1567 | — | Yes |
| 308-728 | ORD | 1128 | — | — |
| 308-730 | ORD | 5807 | — | Yes |
| 308-732 | MASON CITY | 1574 | — | — |
| 308-737 | MCCOOK | 5807 | 2002-05-20 | Yes |
| 308-738 | ASHTON | 1574 | — | — |
| 308-743 | AXTELL | 9631 | — | Yes |
| 308-745 | LOUP CITY | 9631 | — | Yes |
| 308-746 | LEXINGTON | 5807 | 2002-05-23 | Yes |
| 308-747 | CHADRON | 012E | 2006-08-08 | — |
| 308-748 | THEDFORD | 1532 | — | — |
| 308-749 | MERNA | 1532 | — | — |
| 308-750 | ST PAUL | 5807 | — | — |
| 308-752 | SUMNER | 1128 | — | Yes |
| 308-754 | ST PAUL | 9631 | — | Yes |
| 308-760 | ALLIANCE | 5807 | — | — |
| 308-761 | ALLIANCE | 710A | 2007-08-01 | — |
| 308-762 | ALLIANCE | 9631 | — | — |
| 308-763 | ALLIANCE | 9631 | — | Yes |
| 308-764 | ARTHUR | 1532 | — | Yes |
| 308-765 | SCOTSBLUFF | 5807 | 2005-09-30 | Yes |
| 308-767 | BROKEN BOW | 012E | 2009-09-17 | — |
| 308-770 | OSHKOSH | 6874 | 2005-04-22 | — |
| 308-772 | OSHKOSH | 4530 | — | Yes |
| 308-773 | SILVER CRK | 9631 | — | Yes |
| 308-775 | BLOOMINGTN | 1128 | — | Yes |
| 308-777 | MCCOOK | 012E | 2013-10-28 | — |
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.