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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 905-342 | not yet reported which blocks → | Bell Canada | 8051 | Cold Springs | — |
| — | 905-344 | not yet reported which blocks → | Bell Canada | 8051 | Castleton | — |
| — | 905-348 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| — | 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 | — |
| — | 905-359 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| — | 905-361 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Cooksville | — |
| — | 905-362 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Malton | — |
| — | 905-363 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Streetsville | — |
| — | 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 | — |
| — | 905-374 | not yet reported which blocks → | Bell Canada | 8051 | Niagara Falls | — |
| — | 905-375 | not yet reported which blocks → | Bell Canada | 8051 | Cobourg | — |
| — | 905-376 | not yet reported which blocks → | Bell Mobility | 6574 | Cobourg | — |
| — | 905-377 | not yet reported which blocks → | Bell Canada | 8051 | Cobourg | — |
| — | 905-380 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| — | 905-381 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-382 | not yet reported which blocks → | Bell Canada | 8051 | Stevensville | — |
| — | 905-383 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-384 | not yet reported which blocks → | Bell Canada | 8051 | Port Robinson | — |
| — | 905-385 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-386 | not yet reported which blocks → | Bell Canada | 8051 | Wellandport | — |
| — | 905-387 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-388 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-389 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| — | 905-392 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Newmarket | — |
| — | 905-399 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| — | 905-403 | not yet reported which blocks → | Bell Canada | 8051 | Clarkson | — |
| — | 905-404 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-405 | not yet reported which blocks → | Bell Canada | 8051 | Malton | — |
| — | 905-415 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| — | 905-420 | not yet reported which blocks → | Bell Canada | 8051 | South Pickering | — |
| — | 905-424 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-426 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-427 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-428 | not yet reported which blocks → | Bell Canada | 8051 | Ajax-Pickering | — |
| — | 905-429 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-430 | not yet reported which blocks → | Bell Canada | 8051 | Whitby | — |
| — | 905-431 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| — | 905-432 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-433 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
| — | 905-434 | not yet reported which blocks → | Bell Canada | 8051 | Oshawa | — |
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.