NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2008-09-26 | 403-848 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Red Deer | — |
| 2008-09-25 | 403-970 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2008-09-24 | 403-849 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Lethbridge | — |
| 2008-09-16 | 403-909 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2008-09-10 | 403-919 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2008-09-10 | 403-991 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2008-09-10 | 403-992 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2008-07-08 | 403-966 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2007-08-17 | 403-971 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2007-07-12 | 403-671 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2007-06-12 | 403-629 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2007-03-20 | 403-604 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2006-10-11 | 403-973 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2006-10-04 | 403-975 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2006-03-06 | 403-436 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Drumheller | — |
| 2006-03-06 | 403-439 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Didsbury | — |
| 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 | — |
| 2006-01-26 | 403-473 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 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 | — |
| 2005-09-02 | 403-472 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2005-03-11 | 403-389 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2004-11-01 | 403-427 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Brooks | — |
| 2004-11-01 | 403-438 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Olds | — |
| 2004-09-30 | 403-471 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2004-06-30 | 403-429 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Rocky Mountain House | — |
| 2004-01-12 | 403-689 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2003-09-23 | 403-421 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Warner | — |
| 2002-06-11 | 403-582 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Crowsnest Pass | — |
| 2002-03-25 | 403-608 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2001-11-23 | 403-619 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2001-07-13 | 403-431 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Banff | — |
| 2001-06-29 | 403-618 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2001-01-05 | 403-614 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2000-06-19 | 403-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Canmore | — |
| 2000-01-26 | 403-681 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.