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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May 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2001-07-12 | 905-366 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Cooksville | — |
| 2001-07-05 | 905-494 | not yet reported which blocks → | Bell Canada | 8051 | Brampton | — |
| 2001-05-25 | 905-248 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Unionville | — |
| 2001-05-25 | 905-698 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Malton | — |
| 2001-05-25 | 905-756 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Cooksville | — |
| 2001-05-25 | 905-784 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Richmond Hill | — |
| 2001-04-23 | 905-982 | not yet reported which blocks → | Bell Canada | 8051 | Port Perry | — |
| 2001-03-30 | 905-952 | not yet reported which blocks → | Bell Canada | 8051 | Newmarket | — |
| 2001-02-19 | 905-413 | not yet reported which blocks → | Bell Canada | 8051 | Unionville | — |
| 2001-01-31 | 905-537 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2001-01-31 | 905-925 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2001-01-11 | 905-307 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Unionville | — |
| 2001-01-08 | 905-443 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Oshawa | — |
| 2000-12-08 | 905-203 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Milton | — |
| 2000-12-08 | 905-204 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Castlemore | — |
| 2000-12-01 | 905-598 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Brampton | — |
| 2000-11-30 | 905-417 | not yet reported which blocks → | Bell Canada | 8051 | Maple | — |
| 2000-11-23 | 905-977 | not yet reported which blocks → | Bell Canada | 8051 | Hamilton | — |
| 2000-10-24 | 905-213 | not yet reported which blocks → | Bell Mobility | 6574 | Oshawa | — |
| 2000-10-10 | 905-536 | not yet reported which blocks → | Bell Mobility | 6574 | Hamilton | — |
| 2000-10-05 | 905-320 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2000-10-05 | 905-699 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Milton | — |
| 2000-10-04 | 905-801 | not yet reported which blocks → | TELUS Mobility | 8303 | Beeton | — |
| 2000-10-04 | 905-802 | not yet reported which blocks → | TELUS Mobility | 8303 | Burlington | — |
| 2000-10-04 | 905-805 | not yet reported which blocks → | TELUS Mobility | 8303 | Milton | — |
| 2000-10-04 | 905-806 | not yet reported which blocks → | TELUS Mobility | 8303 | Newmarket | — |
| 2000-10-04 | 905-808 | not yet reported which blocks → | TELUS Mobility | 8303 | Oakville | — |
| 2000-10-04 | 905-809 | not yet reported which blocks → | TELUS Mobility | 8303 | Oshawa | — |
| 2000-08-25 | 905-224 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Richmond Hill | — |
| 2000-08-14 | 905-360 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| 2000-08-14 | 905-658 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Catharines-Thorold | — |
| 2000-07-26 | 905-966 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| 2000-07-19 | 905-967 | not yet reported which blocks → | Bell Canada | 8051 | Newmarket | — |
| 2000-07-12 | 905-205 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Markham | — |
| 2000-06-30 | 905-369 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Streetsville | — |
| 2000-06-30 | 905-422 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | South Pickering | — |
| 2000-06-30 | 905-618 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Oakville | — |
| 2000-06-28 | 905-286 | not yet reported which blocks → | Bell Canada | 8051 | Streetsville | — |
| 2000-06-28 | 905-346 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | St. Catharines-Thorold | — |
| 2000-06-28 | 905-751 | not yet reported which blocks → | Bell Canada | 8051 | Aurora | — |
| 2000-06-23 | 905-260 | not yet reported which blocks → | TELUS Mobility | 8303 | Oshawa | — |
| 2000-06-22 | 905-390 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hamilton | — |
| 2000-06-19 | 905-340 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Burlington | — |
| 2000-06-19 | 905-345 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | St. Catharines-Thorold | — |
| 2000-05-29 | 905-283 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cooksville | — |
| 2000-05-04 | 905-933 | not yet reported which blocks → | Bell Mobility | 6574 | St. Catharines-Thorold | — |
| 2000-04-19 | 905-208 | not yet reported which blocks → | TELUS Mobility | 8303 | Oakville | — |
| 2000-04-06 | 905-588 | not yet reported which blocks → | TELUS Mobility | 8303 | Caledon East | — |
| 2000-03-17 | 905-963 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2000-03-15 | 905-606 | not yet reported which blocks → | Bell Canada | 8051 | Streetsville | — |
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.