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 |
|---|---|---|---|---|---|---|
| 2003-05-09 | 905-391 | not yet reported which blocks → | Bell Mobility | 6574 | Ajax-Pickering | — |
| 2003-03-28 | 905-491 | not yet reported which blocks → | Bell Canada | 8051 | Clarkson | — |
| 2003-03-14 | 905-296 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Hamilton | — |
| 2003-03-14 | 905-488 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Brampton | — |
| 2003-03-07 | 905-396 | not yet reported which blocks → | Bell Mobility | 6574 | Cobourg | — |
| 2003-02-06 | 905-393 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2003-02-06 | 905-397 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2003-02-06 | 905-675 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oshawa | — |
| 2003-02-06 | 905-759 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brampton | — |
| 2003-02-06 | 905-968 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Unionville | — |
| 2003-01-21 | 905-902 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2002-11-22 | 905-550 | not yet reported which blocks → | TELUS Mobility | 8303 | Ajax-Pickering | — |
| 2002-10-09 | 905-931 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2002-10-03 | 905-869 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2002-10-03 | 905-872 | not yet reported which blocks → | Bell Mobility | 6574 | Brampton | — |
| 2002-09-27 | 905-287 | not yet reported which blocks → | Bell Canada | 8051 | Oakville | — |
| 2002-08-20 | 905-740 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Malton | — |
| 2002-08-02 | 905-364 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Malton | — |
| 2002-07-22 | 905-798 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brampton | — |
| 2002-07-22 | 905-969 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Unionville | — |
| 2002-06-11 | 905-757 | not yet reported which blocks → | TELUS Mobility | 8303 | Caledon East | — |
| 2002-06-11 | 905-909 | not yet reported which blocks → | TELUS Mobility | 8303 | Beeton | — |
| 2002-05-07 | 905-932 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2002-04-16 | 905-246 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| 2002-03-14 | 905-901 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Oakville | — |
| 2002-02-21 | 905-674 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Oshawa | — |
| 2002-02-13 | 905-298 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Malton | — |
| 2002-01-22 | 905-220 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2002-01-22 | 905-251 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Newmarket | — |
| 2002-01-22 | 905-441 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2002-01-22 | 905-599 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2002-01-22 | 905-960 | not yet reported which blocks → | Bell Mobility | 6574 | Newmarket | — |
| 2002-01-21 | 905-293 | not yet reported which blocks → | Bell Canada | 8051 | Malton | — |
| 2002-01-17 | 905-592 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Burlington | — |
| 2002-01-17 | 905-593 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Streetsville | — |
| 2002-01-17 | 905-594 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Stoney Creek | — |
| 2001-12-21 | 905-243 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2001-12-21 | 905-379 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2001-12-21 | 905-530 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Thornhill | — |
| 2001-12-21 | 905-965 | not yet reported which blocks → | Bell Mobility | 6574 | Brampton | — |
| 2001-11-19 | 905-861 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| 2001-10-02 | 905-818 | not yet reported which blocks → | TELUS Mobility | 8303 | Hamilton | — |
| 2001-10-01 | 905-256 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Malton | — |
| 2001-09-27 | 905-214 | not yet reported which blocks → | Bell Canada | 8051 | Cooksville | — |
| 2001-09-27 | 905-495 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| 2001-09-24 | 905-927 | not yet reported which blocks → | Bell Canada | 8051 | Gormley | — |
| 2001-09-07 | 905-228 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | St. Catharines-Thorold | — |
| 2001-08-02 | 905-999 | not yet reported which blocks → | TELUS Mobility | 8303 | Ajax-Pickering | — |
| 2001-07-31 | 905-378 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Catharines-Thorold | — |
| 2001-07-31 | 905-754 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Unionville | — |
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.