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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 403-845 | not yet reported which blocks → | TELUS | 8084 | Rocky Mountain House | — |
| — | 403-850 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-851 | not yet reported which blocks → | TELUS | 8084 | Cochrane | — |
| — | 403-854 | not yet reported which blocks → | TELUS | 8084 | Hanna | — |
| — | 403-859 | not yet reported which blocks → | TELUS | 8084 | Waterton Park | — |
| — | 403-860 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-861 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-862 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-863 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-867 | not yet reported which blocks → | TELUS | 8084 | Foremost | — |
| — | 403-868 | not yet reported which blocks → | TELUS | 8084 | Manyberries | — |
| — | 403-876 | not yet reported which blocks → | TELUS | 8084 | Big Valley | — |
| — | 403-881 | not yet reported which blocks → | TELUS | 8084 | Morley | — |
| — | 403-882 | not yet reported which blocks → | TELUS | 8084 | Castor | — |
| — | 403-883 | not yet reported which blocks → | TELUS | 8084 | Donalda | — |
| — | 403-884 | not yet reported which blocks → | TELUS | 8084 | Halkirk | — |
| — | 403-885 | not yet reported which blocks → | TELUS | 8084 | Blackfalds | — |
| — | 403-886 | not yet reported which blocks → | TELUS | 8084 | Penhold | — |
| — | 403-887 | not yet reported which blocks → | TELUS | 8084 | Sylvan Lake | — |
| — | 403-893 | not yet reported which blocks → | TELUS | 8084 | Elkwater | — |
| — | 403-897 | not yet reported which blocks → | TELUS | 8084 | Champion | — |
| — | 403-898 | not yet reported which blocks → | TELUS | 8084 | Jenner | — |
| — | 403-901 | not yet reported which blocks → | TELUS | 8084 | Strathmore | — |
| — | 403-912 | not yet reported which blocks → | TELUS | 8084 | Airdrie | — |
| — | 403-931 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-932 | not yet reported which blocks → | TELUS | 8084 | Cochrane | — |
| — | 403-933 | not yet reported which blocks → | TELUS | 8084 | Turner Valley | — |
| — | 403-934 | not yet reported which blocks → | TELUS | 8084 | Strathmore | — |
| — | 403-935 | not yet reported which blocks → | TELUS | 8084 | Irricana | — |
| — | 403-936 | not yet reported which blocks → | TELUS | 8084 | Langdon | — |
| — | 403-937 | not yet reported which blocks → | TELUS | 8084 | Walsh | — |
| — | 403-938 | not yet reported which blocks → | TELUS | 8084 | Okotoks | — |
| — | 403-946 | not yet reported which blocks → | TELUS | 8084 | Crossfield | — |
| — | 403-947 | not yet reported which blocks → | TELUS | 8084 | Beiseker | — |
| — | 403-948 | not yet reported which blocks → | TELUS | 8084 | Airdrie | — |
| — | 403-949 | not yet reported which blocks → | TELUS | 8084 | Bragg Creek | — |
| — | 403-952 | not yet reported which blocks → | TELUS Mobility | 8301 | Medicine Hat | — |
| — | 403-964 | not yet reported which blocks → | TELUS | 8084 | Rolling Hills | — |
| — | 403-965 | not yet reported which blocks → | TELUS | 8084 | Brocket | — |
| — | 403-972 | not yet reported which blocks → | TELUS | 8084 | Acadia Valley | — |
| — | 403-974 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-989 | not yet reported which blocks → | TELUS | 8084 | Sunchild O'Chiese | — |
| — | 403-994 | not yet reported which blocks → | TELUS Mobility | 8301 | Olds | — |
| — | 403-995 | not yet reported which blocks → | TELUS | 8084 | Okotoks | — |
| — | 403-996 | not yet reported which blocks → | TELUS Mobility | 8301 | Banff | — |
| — | 403-999 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
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.