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 |
|---|---|---|---|---|---|---|
| — | 608-342 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0934 | PLATTEVL | WI |
| — | 608-348 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0934 | PLATTEVL | WI |
| — | 608-349 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0934 | PLATTEVL | WI |
| — | 608-372 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | TOMAH | WI |
| — | 608-374 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | TOMAH | WI |
| — | 608-375 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | BOSCOBEL | WI |
| — | 608-378 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | WARRENS | WI |
| — | 608-462 | 3XXX7XXX9XXX · 2 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | ELROY | WI |
| — | 608-464 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | WONEWOC | WI |
| — | 608-476 | 6XXX which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | STEUBEN | WI |
| — | 608-532 | 3XXX7XXX8XXX · 3 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | AVOCA | WI |
| — | 608-635 | 0XXX5XXX6XXX · 2 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | POYNETTE | WI |
| — | 608-842 | 0XXX2XXX4XXX7XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | DE FOREST | WI |
| — | 608-846 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | DE FOREST | WI |
| — | 608-854 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0934 | HAZELGREEN | WI |
| — | 608-868 | not yet reported which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0841 | MILTON | WI |
| — | 608-872 | 6XXX which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | MOUNT ZION | WI |
| — | 608-876 | 7XXX which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0970 | FOOTVILLE | WI |
| — | 608-929 | 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | BRIGHTSPEED OF WESTERN WISCONSIN, LLC | 0922 | HIGHLAND | WI |
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.