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 |
|---|---|---|---|---|---|---|
| — | 562-293 | 5XXX6XXX7XXX8XXX which blocks → | PAETEC ITEL, LLC | 829J | NORWALK | CA |
| — | 562-296 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | PAETEC ITEL, LLC | 829J | ALAMITOS | CA |
| — | 562-299 | 2XXX3XXX4XXX7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | DOWNEY | CA |
| — | 562-303 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | LAKEWOOD | CA |
| — | 562-304 | 0XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | LONG BEACH | CA |
| — | 562-361 | 0XXX2XXX3XXX6XXX7XXX8XXX · 2 holders which blocks → | PAETEC ITEL, LLC | 829J | CMTN CMTN | CA |
| — | 562-415 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | CMTN CMTN | CA |
| — | 562-447 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | PAETEC ITEL, LLC | 829J | WHITTIER | CA |
| — | 562-448 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | LA HABRA | CA |
| — | 562-576 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | PICORIVERA | CA |
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.