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 |
|---|---|---|---|---|---|---|
| 2022-02-25 | 920-610 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | GREEN BAY | WI |
| 2011-11-09 | 920-709 | 0–9 XXXall 10 · 7 holders which blocks → | PAETEC ITEL, LLC | 829J | JUNEAU | WI |
| 2008-02-13 | 920-944 | 0–9 XXXall 10 · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | APPLETON | WI |
| 2002-07-25 | 920-569 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | GREEN BAY | WI |
| 2001-02-08 | 920-581 | 3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | FONDDU LAC | WI |
| 2001-02-08 | 920-769 | 4XXX5XXX6XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | MANITOWOC | WI |
| 2001-02-08 | 920-783 | 6XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | SHEBOYGAN | WI |
| — | 920-239 | 1XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | WAUPUN | WI |
| — | 920-273 | 4XXX5XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | FONDDU LAC | WI |
| — | 920-321 | 4XXX6XXX8XXX which blocks → | PAETEC ITEL, LLC | 829J | GREEN BAY | WI |
| — | 920-351 | 3XXX4XXX5XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | DE PERE | WI |
| — | 920-462 | 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | KAUKAUNA | WI |
| — | 920-482 | 2XXX3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | MANITOWOC | WI |
| — | 920-567 | 1XXX3XXX6XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | WATERTOWN | WI |
| — | 920-691 | 2XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | FTATKINSON | WI |
| — | 920-694 | 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | SHEBOYGAN | WI |
| — | 920-821 | 1XXX3XXX6XXX7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | BEAVER DAM | WI |
| — | 920-964 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | DE PERE | WI |
| — | 920-965 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | GREEN BAY | WI |
| — | 920-966 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | OSHKOSH | WI |
| — | 920-967 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | NEENAH | WI |
| — | 920-968 | not yet reported which blocks → | PAETEC ITEL, LLC | 829J | APPLETON | 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.