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 403
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 |
|---|---|---|---|---|---|---|
| 2006-03-06 | 403-446 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Coronation | — |
| 2006-03-06 | 403-447 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Consort | — |
| 2006-03-06 | 403-448 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Cardston | — |
| 2006-03-06 | 403-449 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Bowden | — |
| 2006-03-02 | 403-424 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vauxhall | — |
| 2006-03-02 | 403-425 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Three Hills | — |
| 2006-03-02 | 403-426 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Sundre | — |
| 2006-03-02 | 403-430 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Stettler | — |
| 2006-03-02 | 403-432 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Pincher Creek | — |
| 2006-03-02 | 403-433 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oyen | — |
| 2006-03-02 | 403-434 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Lake Louise | — |
| 2006-03-02 | 403-435 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hanna | — |
| 2006-03-01 | 403-423 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vulcan | — |
| 2006-03-01 | 403-690 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2006-03-01 | 403-978 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2006-02-14 | 403-441 | not yet reported which blocks → | Bell West Inc. | 2933 | Calgary | — |
| 2006-02-06 | 403-478 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2006-01-26 | 403-466 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2006-01-26 | 403-473 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2006-01-24 | 403-869 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2006-01-18 | 403-467 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2005-12-21 | 403-597 | not yet reported which blocks → | Bell Mobility | 6574 | Red Deer | — |
| 2005-12-12 | 403-586 | not yet reported which blocks → | TELUS Mobility | 8301 | Olds | — |
| 2005-10-25 | 403-422 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | High River | — |
| 2005-10-25 | 403-470 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2005-10-21 | 403-896 | not yet reported which blocks → | TELUS Mobility | 8301 | Red Deer | — |
| 2005-09-07 | 403-695 | not yet reported which blocks → | Bell West Inc. | 2933 | Calgary | — |
| 2005-09-02 | 403-472 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2005-08-31 | 403-775 | not yet reported which blocks → | GT Group Telecom Services Corp. | 8506 | Calgary | — |
| 2005-08-17 | 403-366 | not yet reported which blocks → | Bell West Inc. | 2933 | Calgary | — |
| 2005-07-29 | 403-465 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2005-07-20 | 403-464 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2005-06-29 | 403-463 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2005-06-24 | 403-955 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2005-06-15 | 403-698 | not yet reported which blocks → | Bell West Inc. | 2933 | Calgary | — |
| 2005-05-06 | 403-420 | not yet reported which blocks → | Bell West Inc. | 2933 | Airdrie | — |
| 2005-05-06 | 403-469 | not yet reported which blocks → | Bell West Inc. | 2933 | High River | — |
| 2005-05-06 | 403-480 | not yet reported which blocks → | Bell West Inc. | 2933 | Strathmore | — |
| 2005-05-06 | 403-621 | not yet reported which blocks → | Bell West Inc. | 2933 | Canmore | — |
| 2005-05-06 | 403-855 | not yet reported which blocks → | Bell West Inc. | 2933 | Cochrane | — |
| 2005-05-06 | 403-939 | not yet reported which blocks → | Bell West Inc. | 2933 | Okotoks | — |
| 2005-05-05 | 403-372 | not yet reported which blocks → | TELUS | 8084 | Crowsnest Pass | — |
| 2005-05-04 | 403-774 | not yet reported which blocks → | GT Group Telecom Services Corp. | 8506 | Calgary | — |
| 2005-04-26 | 403-536 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Calgary | — |
| 2005-04-19 | 403-592 | not yet reported which blocks → | Bell West Inc. | 2933 | Calgary | — |
| 2005-04-08 | 403-462 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2005-03-11 | 403-389 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2004-12-20 | 403-927 | not yet reported which blocks → | Globalstar | 6996 | Calgary | — |
| 2004-11-09 | 403-923 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2004-11-04 | 403-373 | not yet reported which blocks → | TELUS Mobility | 8301 | Red Deer | — |
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.