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.
Most active assignees, all time — NPA 905
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 905-272 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-273 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-274 | not yet reported which blocks → | Bell Canada | 8051 | Port Credit | — |
| — | 905-275 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-276 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-277 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-278 | not yet reported which blocks → | Bell Canada | 8051 | Port Credit | — |
| — | 905-279 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-281 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-282 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-294 | not yet reported which blocks → | Bell Canada | 8051 | Markham | — |
| — | 905-295 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-303 | not yet reported which blocks → | Bell Canada | 8051 | Maple | — |
| — | 905-304 | not yet reported which blocks → | Bell Canada | 8051 | Ancaster | — |
| — | 905-305 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| — | 905-306 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| — | 905-308 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-309 | not yet reported which blocks → | Bell Canada | 8051 | Grimsby | — |
| — | 905-310 | not yet reported which blocks → | Bell Canada | 8051 | 7 Digit Service | — |
| — | 905-312 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-313 | not yet reported which blocks → | Bell Canada | 8051 | Oak Ridges | — |
| — | 905-314 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-316 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| — | 905-317 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-318 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-319 | not yet reported which blocks → | Bell Canada | 8051 | Burlington | — |
| — | 905-322 | not yet reported which blocks → | Bell Canada | 8051 | St. Catharines-Thorold | — |
| — | 905-323 | not yet reported which blocks → | Bell Canada | 8051 | St. Catharines-Thorold | — |
| — | 905-331 | not yet reported which blocks → | Bell Canada | 8051 | Burlington | — |
| — | 905-332 | not yet reported which blocks → | Bell Canada | 8051 | Burlington | — |
| — | 905-333 | not yet reported which blocks → | Bell Canada | 8051 | Burlington | — |
| — | 905-335 | not yet reported which blocks → | Bell Canada | 8051 | Burlington | — |
| — | 905-336 | not yet reported which blocks → | Bell Canada | 8051 | Burlington | — |
| — | 905-337 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| — | 905-338 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| — | 905-339 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| — | 905-342 | not yet reported which blocks → | Bell Canada | 8051 | Cold Springs | — |
| — | 905-344 | not yet reported which blocks → | Bell Canada | 8051 | Castleton | — |
| — | 905-349 | not yet reported which blocks → | Bell Canada | 8051 | Grafton | — |
| — | 905-351 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-352 | not yet reported which blocks → | Bell Canada | 8051 | Roseneath | — |
| — | 905-353 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-354 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-355 | not yet reported which blocks → | Bell Canada | 8051 | Colborne | — |
| — | 905-356 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-357 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-358 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-371 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-372 | not yet reported which blocks → | Bell Canada | 8051 | Cobourg | — |
| — | 905-373 | not yet reported which blocks → | Bell Canada | 8051 | Cobourg | — |
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.