NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| 2011-09-12 | 581-244 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Petite-Riviere-St-Francois | — |
| 2008-09-19 | 581-274 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Batiscan | — |
| 2008-09-19 | 581-275 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Lac-aux-Sables | — |
| 2008-09-19 | 581-276 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Saint-Casimir | — |
| 2008-09-19 | 581-277 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Saint-Marc-des-Carrieres | — |
| 2008-09-19 | 581-278 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Saint-Stanislas | — |
| 2008-09-19 | 581-279 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Saint-Tite | — |
| 2008-09-19 | 581-280 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Saint-Ubalde | — |
| 2008-09-19 | 581-281 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Saint-Adelphe | — |
| 2008-09-19 | 581-282 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Sainte-Anne-de-la-Perade | — |
| 2008-09-19 | 581-283 | not yet reported which blocks → | Telecommunications Xittel Inc | 247F | Sainte-Thecle | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.