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 |
|---|---|---|---|---|---|---|
| — | 920-394 | 1XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | KINGSTON | WI |
| — | 920-398 | 0XXX6XXX7XXX · 2 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | MARKESAN | WI |
| — | 920-525 | 0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | NICHOLS | WI |
| — | 920-589 | 1XXX4XXX · 2 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | PICKETT | WI |
| — | 920-787 | 8XXX9XXX · 2 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | WAUTOMA | WI |
| — | 920-833 | 3XXX4XXX5XXX8XXX · 3 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | SEYMOUR | WI |
| — | 920-845 | 0XXX3XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | LUXEMBURG | WI |
| — | 920-863 | 0XXX7XXX9XXX · 3 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | DENMARK | WI |
| — | 920-866 | 0XXX4XXX5XXX8XXX · 3 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | NEWFRANKEN | WI |
| — | 920-872 | 0XXX1XXX3XXX6XXX7XXX8XXX · 5 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | ROSENDALE | WI |
| — | 920-984 | 0XXX2XXX7XXX9XXX · 4 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | BLACKCREEK | WI |
| — | 920-986 | 4XXX7XXX · 2 holders which blocks → | BRIGHTSPEED OF CENTRAL WISCONSIN, LLC | 1159 | SHIOCTON | 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.