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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 403-673 | not yet reported which blocks → | TELUS | 8084 | Exshaw | — |
| — | 403-676 | not yet reported which blocks → | TELUS | 8084 | Sibbald | — |
| — | 403-677 | not yet reported which blocks → | TELUS | 8084 | Rosebud | — |
| — | 403-678 | not yet reported which blocks → | TELUS | 8084 | Canmore | — |
| — | 403-680 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| — | 403-684 | not yet reported which blocks → | TELUS | 8084 | Blackie | — |
| — | 403-686 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-687 | not yet reported which blocks → | TELUS | 8084 | Granum | — |
| — | 403-691 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-701 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-703 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| — | 403-704 | not yet reported which blocks → | TELUS | 8084 | Ponoka | — |
| — | 403-705 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Calgary | — |
| — | 403-708 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| — | 403-709 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Cochrane | — |
| — | 403-714 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| — | 403-716 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-717 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-720 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-721 | not yet reported which blocks → | TELUS | 8084 | Nordegg | — |
| — | 403-722 | not yet reported which blocks → | TELUS | 8084 | Caroline | — |
| — | 403-725 | not yet reported which blocks → | TELUS | 8084 | Hays | — |
| — | 403-728 | not yet reported which blocks → | TELUS | 8084 | Spruceview | — |
| — | 403-729 | not yet reported which blocks → | TELUS | 8084 | Leslieville | — |
| — | 403-730 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-732 | not yet reported which blocks → | TELUS | 8084 | Picture Butte | — |
| — | 403-733 | not yet reported which blocks → | TELUS | 8084 | New Dayton | — |
| — | 403-734 | not yet reported which blocks → | TELUS | 8084 | Gleichen | — |
| — | 403-735 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-737 | not yet reported which blocks → | TELUS | 8084 | Stand Off | — |
| — | 403-738 | not yet reported which blocks → | TELUS | 8084 | Iron Springs | — |
| — | 403-739 | not yet reported which blocks → | TELUS | 8084 | Enchant | — |
| — | 403-740 | not yet reported which blocks → | TELUS | 8084 | Stettler | — |
| — | 403-742 | not yet reported which blocks → | TELUS | 8084 | Stettler | — |
| — | 403-746 | not yet reported which blocks → | TELUS | 8084 | Eckville | — |
| — | 403-747 | not yet reported which blocks → | TELUS | 8084 | Alix | — |
| — | 403-748 | not yet reported which blocks → | TELUS | 8084 | Bentley | — |
| — | 403-749 | not yet reported which blocks → | TELUS | 8084 | Delburne | — |
| — | 403-750 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-752 | not yet reported which blocks → | TELUS | 8084 | Raymond | — |
| — | 403-756 | not yet reported which blocks → | TELUS | 8084 | Stirling | — |
| — | 403-757 | not yet reported which blocks → | TELUS | 8084 | Barons | — |
| — | 403-758 | not yet reported which blocks → | TELUS | 8084 | Magrath | — |
| — | 403-760 | not yet reported which blocks → | TELUS | 8084 | Banff | — |
| — | 403-761 | not yet reported which blocks → | TELUS | 8084 | Saskatchewan River Crossing | — |
| — | 403-762 | not yet reported which blocks → | TELUS | 8084 | Banff | — |
| — | 403-769 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| — | 403-770 | not yet reported which blocks → | GT Group Telecom Services Corp. | 8506 | Calgary | — |
| — | 403-772 | not yet reported which blocks → | TELUS | 8084 | Morrin | — |
| — | 403-773 | not yet reported which blocks → | TELUS | 8084 | Elnora | — |
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.