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 431
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2025-12-19 | 431-471 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2025-09-26 | 431-481 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2024-09-17 | 431-791 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2022-09-08 | 431-698 | not yet reported which blocks → | TELUS Mobility | 8303 | Steinbach | — |
| 2021-12-24 | 431-792 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2021-10-13 | 431-726 | not yet reported which blocks → | TELUS Mobility | 8303 | Steinbach | — |
| 2019-11-19 | 431-728 | not yet reported which blocks → | TELUS Mobility | 646F | Winnipeg | — |
| 2019-09-10 | 431-554 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2017-09-26 | 431-556 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2017-09-22 | 431-557 | not yet reported which blocks → | TELUS Mobility | 8303 | Winnipeg | — |
| 2017-01-24 | 431-729 | not yet reported which blocks → | TELUS Mobility | 8303 | Austin | — |
| 2017-01-24 | 431-730 | not yet reported which blocks → | TELUS Mobility | 8303 | Notre Dame de Lourdes | — |
| 2017-01-24 | 431-731 | not yet reported which blocks → | TELUS Mobility | 8303 | Elie | — |
| 2017-01-24 | 431-732 | not yet reported which blocks → | TELUS Mobility | 8303 | Hadashville | — |
| 2016-12-07 | 431-733 | not yet reported which blocks → | TELUS Mobility | 8303 | Altona | — |
| 2016-12-07 | 431-734 | not yet reported which blocks → | TELUS Mobility | 8303 | Killarney | — |
| 2016-12-07 | 431-735 | not yet reported which blocks → | TELUS Mobility | 8303 | Teulon | — |
| 2016-12-07 | 431-736 | not yet reported which blocks → | TELUS Mobility | 8303 | Pilot Mound | — |
| 2016-12-07 | 431-737 | not yet reported which blocks → | TELUS Mobility | 8303 | Arborg | — |
| 2016-11-03 | 431-738 | not yet reported which blocks → | TELUS Mobility | 8303 | Dauphin | — |
| 2016-11-03 | 431-739 | not yet reported which blocks → | TELUS Mobility | 8303 | Ste. Rose du Lac | — |
| 2016-11-03 | 431-740 | not yet reported which blocks → | TELUS Mobility | 8303 | Deloraine | — |
| 2016-11-03 | 431-741 | not yet reported which blocks → | TELUS Mobility | 8303 | Melita | — |
| 2016-11-03 | 431-742 | not yet reported which blocks → | TELUS Mobility | 8303 | Morris | — |
| 2016-11-03 | 431-743 | not yet reported which blocks → | TELUS Mobility | 8303 | Swan River | — |
| 2016-11-03 | 431-744 | not yet reported which blocks → | TELUS Mobility | 8303 | Churchill | — |
| 2016-11-03 | 431-745 | not yet reported which blocks → | TELUS Mobility | 8303 | Cross Lake | — |
| 2016-11-03 | 431-746 | not yet reported which blocks → | TELUS Mobility | 8303 | Flin Flon | — |
| 2016-11-03 | 431-747 | not yet reported which blocks → | TELUS Mobility | 8303 | Gillam | — |
| 2016-11-03 | 431-748 | not yet reported which blocks → | TELUS Mobility | 8303 | Norway House | — |
| 2016-11-03 | 431-749 | not yet reported which blocks → | TELUS Mobility | 8303 | Oxford House | — |
| 2016-11-03 | 431-750 | not yet reported which blocks → | TELUS Mobility | 8303 | Snow Lake | — |
| 2016-11-03 | 431-751 | not yet reported which blocks → | TELUS Mobility | 8303 | Split Lake | — |
| 2016-11-03 | 431-752 | not yet reported which blocks → | TELUS Mobility | 8303 | St. Theresa Point | — |
| 2016-11-03 | 431-753 | not yet reported which blocks → | TELUS Mobility | 8303 | The Pas | — |
| 2016-11-03 | 431-754 | not yet reported which blocks → | TELUS Mobility | 8303 | Thompson | — |
| 2016-11-03 | 431-755 | not yet reported which blocks → | TELUS Mobility | 8303 | Boissevain | — |
| 2016-11-03 | 431-756 | not yet reported which blocks → | TELUS Mobility | 8303 | Clear Lake | — |
| 2016-11-03 | 431-757 | not yet reported which blocks → | TELUS Mobility | 8303 | Hamiota | — |
| 2016-11-03 | 431-758 | not yet reported which blocks → | TELUS Mobility | 8303 | Minnedosa | — |
| 2016-11-03 | 431-759 | not yet reported which blocks → | TELUS Mobility | 8303 | Neepawa | — |
| 2016-11-03 | 431-760 | not yet reported which blocks → | TELUS Mobility | 8303 | Roblin | — |
| 2016-11-03 | 431-761 | not yet reported which blocks → | TELUS Mobility | 8303 | Russell | — |
| 2016-11-03 | 431-762 | not yet reported which blocks → | TELUS Mobility | 8303 | Strathclair | — |
| 2016-11-03 | 431-763 | not yet reported which blocks → | TELUS Mobility | 8303 | Virden | — |
| 2016-11-03 | 431-764 | not yet reported which blocks → | TELUS Mobility | 8303 | Ashern | — |
| 2016-11-03 | 431-765 | not yet reported which blocks → | TELUS Mobility | 8303 | Bissett | — |
| 2016-11-03 | 431-766 | not yet reported which blocks → | TELUS Mobility | 8303 | Easterville | — |
| 2016-11-03 | 431-767 | not yet reported which blocks → | TELUS Mobility | 8303 | Fisher River | — |
| 2016-11-03 | 431-768 | not yet reported which blocks → | TELUS Mobility | 8303 | Grand Rapids | — |
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.