NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 701-229 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | FORDVILLE | ND |
| — | 701-247 | 4XXX which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | LAKOTA | ND |
| — | 701-257 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | ST THOMAS | ND |
| — | 701-259 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | MICHIGAN | ND |
| — | 701-265 | none assigned yet which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | CAVALIER | ND |
| — | 701-284 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | PARK RIVER | ND |
| — | 701-326 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | ANETA | ND |
| — | 701-345 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | PETERSBURG | ND |
| — | 701-384 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | DAHLEN | ND |
| — | 701-397 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | NIAGARA | ND |
| — | 701-454 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | DRAYTON | ND |
| — | 701-488 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | GALESBURG | ND |
| — | 701-593 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | LANKIN | ND |
| — | 701-644 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | EDMORE | ND |
| — | 701-655 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | BROCKET | ND |
| — | 701-657 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | CRYSTAL | ND |
| — | 701-825 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | PEMBINA | ND |
| — | 701-865 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | INKSTER | ND |
| — | 701-869 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | GILBY | ND |
| — | 701-874 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | HUNTER | ND |
| — | 701-886 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | NECHE | ND |
| — | 701-894 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | HOOPLE | ND |
| — | 701-944 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | ADAMS | ND |
| — | 701-949 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | NEKOMA | ND |
| — | 701-966 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | FAIRDALE | ND |
| — | 701-967 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | ARTHUR | ND |
| — | 701-993 | not yet reported which blocks → | POLAR COMMUN MUTUAL AID CORP. | 1630 | EDINBURG | ND |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.