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 |
|---|---|---|---|---|---|---|
| 2010-04-12 | 570-580 | 0–9 XXXall 10 · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | MT POCONO | PA |
| 2003-11-14 | 570-994 | 0–9 XXXall 10 · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | STROUDSBG | PA |
| — | 570-213 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | STROUDSBG | PA |
| — | 570-218 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | BERWICK | PA |
| — | 570-230 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | JERMYN | PA |
| — | 570-245 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | BLOOMSBURG | PA |
| — | 570-261 | 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | MOUNTANTOP | PA |
| — | 570-267 | 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | CARBONDALE | PA |
| — | 570-291 | 2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | OLYPHANT | PA |
| — | 570-293 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | PAETEC ITEL, LLC | 829J | DANVILLE | PA |
| — | 570-392 | 2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | WYOMING | PA |
| — | 570-503 | 4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | HAMLIN | PA |
| — | 570-576 | 3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | HAWLEY | PA |
| — | 570-579 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | HAZLETON | PA |
| — | 570-647 | 4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | HONESDALE | PA |
| — | 570-704 | 3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | WILKSBARRE | PA |
| — | 570-732 | 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | JIM THORPE | PA |
| — | 570-763 | 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | KINGSTON | PA |
| — | 570-774 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | MOOSIC | PA |
| — | 570-795 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | MOSCOW | PA |
| — | 570-812 | 3XXX4XXX5XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | NANTICOKE | PA |
| — | 570-891 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | PITTSTON | PA |
| — | 570-938 | 3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | PLYMOUTH | PA |
| — | 570-983 | 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | SCRANTON | PA |
| — | 570-986 | 2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | TAYLOR | PA |
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.