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 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 |
|---|---|---|---|---|---|---|
| 2017-03-06 | 431-270 | not yet reported which blocks → | Bell Mobility | 6574 | Rivers | — |
| 2017-03-06 | 431-271 | not yet reported which blocks → | Bell Mobility | 6574 | Roblin | — |
| 2017-03-06 | 431-272 | not yet reported which blocks → | Bell Mobility | 6574 | Riverton | — |
| 2017-03-06 | 431-286 | not yet reported which blocks → | Bell Mobility | 6574 | Rossburn | — |
| 2017-03-06 | 431-287 | not yet reported which blocks → | Bell Mobility | 6574 | Sprague | — |
| 2017-03-06 | 431-288 | not yet reported which blocks → | Bell Mobility | 6574 | St. Theresa Point | — |
| 2017-03-06 | 431-289 | not yet reported which blocks → | Bell Mobility | 6574 | Ste. Rose du Lac | — |
| 2017-03-06 | 431-290 | not yet reported which blocks → | Bell Mobility | 6574 | Treherne | — |
| 2017-03-06 | 431-291 | not yet reported which blocks → | Bell Mobility | 6574 | Strathclair | — |
| 2017-03-06 | 431-292 | not yet reported which blocks → | Bell Mobility | 6574 | Woodlands | — |
| 2017-02-21 | 431-342 | not yet reported which blocks → | Bell Mobility | 6574 | Altona | — |
| 2017-02-21 | 431-343 | not yet reported which blocks → | Bell Mobility | 6574 | Beausejour | — |
| 2017-02-21 | 431-344 | not yet reported which blocks → | Bell Mobility | 6574 | Carman | — |
| 2017-02-21 | 431-345 | not yet reported which blocks → | Bell Mobility | 6574 | Dauphin | — |
| 2017-02-21 | 431-346 | not yet reported which blocks → | Bell Mobility | 6574 | Flin Flon | — |
| 2017-02-21 | 431-347 | not yet reported which blocks → | Bell Mobility | 6574 | Lac Du Bonnet | — |
| 2017-02-21 | 431-348 | not yet reported which blocks → | Bell Mobility | 6574 | Lorette | — |
| 2017-02-21 | 431-349 | not yet reported which blocks → | Bell Mobility | 6574 | Morden | — |
| 2017-02-21 | 431-350 | not yet reported which blocks → | Bell Mobility | 6574 | Morris | — |
| 2017-02-21 | 431-351 | not yet reported which blocks → | Bell Mobility | 6574 | Neepawa | — |
| 2017-02-21 | 431-352 | not yet reported which blocks → | Bell Mobility | 6574 | Russell | — |
| 2017-02-21 | 431-353 | not yet reported which blocks → | Bell Mobility | 6574 | Souris | — |
| 2017-02-21 | 431-354 | not yet reported which blocks → | Bell Mobility | 6574 | Thompson | — |
| 2017-02-21 | 431-355 | not yet reported which blocks → | Bell Mobility | 6574 | The Pas | — |
| 2017-02-21 | 431-356 | not yet reported which blocks → | Bell Mobility | 6574 | Winkler | — |
| 2017-02-21 | 431-357 | not yet reported which blocks → | Bell Mobility | 6574 | Eriksdale | — |
| 2017-02-21 | 431-358 | not yet reported which blocks → | Bell Mobility | 6574 | Holland | — |
| 2017-02-21 | 431-359 | not yet reported which blocks → | Bell Mobility | 6574 | Manitou | — |
| 2017-02-21 | 431-360 | not yet reported which blocks → | Bell Mobility | 6574 | Clear Lake | — |
| 2017-02-21 | 431-361 | not yet reported which blocks → | Bell Mobility | 6574 | Deloraine | — |
| 2017-02-21 | 431-362 | not yet reported which blocks → | Bell Mobility | 6574 | Minnedosa | — |
| 2017-02-21 | 431-363 | not yet reported which blocks → | Bell Mobility | 6574 | Swan River | — |
| 2017-02-21 | 431-365 | not yet reported which blocks → | Bell Mobility | 6574 | Teulon | — |
| 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 | — |
| 2016-12-20 | 431-886 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Melita | — |
| 2016-12-20 | 431-889 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Deloraine | — |
| 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 | — |
| 2016-11-09 | 431-803 | not yet reported which blocks → | Iristel Inc. | 154E | Winnipeg | — |
| 2016-11-09 | 431-804 | not yet reported which blocks → | Iristel Inc. | 154E | Winnipeg | — |
| 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 | — |
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.