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 |
|---|---|---|---|---|---|---|
| 2001-06-12 | 608-468 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 7 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | FOUNTAINCY | WI |
| 2001-05-24 | 608-309 | 7XXX which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | BLAIR | WI |
| 2001-05-24 | 608-390 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | CENTERVL | WI |
| 2001-05-24 | 608-396 | 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | MELROSE | WI |
| 2001-05-16 | 608-399 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | HOLMEN | WI |
| — | 608-323 | 0XXX5XXX which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | ARCADIA | WI |
| — | 608-486 | 0XXX3XXX7XXX9XXX · 3 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | BANGOR | WI |
| — | 608-488 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | MELROSE | WI |
| — | 608-525 | 0XXX which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | ETTRICK | WI |
| — | 608-526 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | HOLMEN | WI |
| — | 608-534 | 0XXX2XXX3XXX4XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | TREMPEALEU | WI |
| — | 608-539 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | CENTERVL | WI |
| — | 608-543 | 1XXX2XXX7XXX · 3 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | ARGYLE | WI |
| — | 608-582 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | GALESVILLE | WI |
| — | 608-687 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | FOUNTAINCY | WI |
| — | 608-739 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | MUSCODA | WI |
| — | 608-759 | 0XXX which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | BENTON | WI |
| — | 608-776 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | DARLINGTON | WI |
| — | 608-857 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | MINDORO | WI |
| — | 608-922 | 7XXX which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | GRATIOT | WI |
| — | 608-943 | 0XXX3XXX7XXX9XXX · 3 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | MONTFORT | WI |
| — | 608-965 | 1XXX9XXX · 2 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | SHULLSBURG | WI |
| — | 608-968 | 7XXX which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | WIOTA | WI |
| — | 608-989 | not yet reported which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | BLAIR | 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.