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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-11-28 | 431-562 | not yet reported which blocks → | Bell West Inc. | 2933 | Steinbach | — |
| 2022-11-28 | 431-563 | not yet reported which blocks → | Bell West Inc. | 2933 | Thompson | — |
| 2022-11-25 | 431-560 | not yet reported which blocks → | Bell West Inc. | 2933 | Dauphin | — |
| 2022-11-25 | 431-561 | not yet reported which blocks → | Bell West Inc. | 2933 | Selkirk | — |
| 2022-05-30 | 431-213 | not yet reported which blocks → | Bell West Inc. | 2933 | Brandon | — |
| 2022-05-30 | 431-575 | not yet reported which blocks → | Bell West Inc. | 2933 | Winnipeg | — |
| 2019-02-19 | 431-327 | not yet reported which blocks → | Bell West Inc. | 2933 | Ste. Rose du Lac | — |
| 2019-02-19 | 431-461 | not yet reported which blocks → | Bell West Inc. | 2933 | Arborg | — |
| 2019-02-19 | 431-462 | not yet reported which blocks → | Bell West Inc. | 2933 | Easterville | — |
| 2019-02-19 | 431-463 | not yet reported which blocks → | Bell West Inc. | 2933 | Fisher River | — |
| 2019-02-19 | 431-464 | not yet reported which blocks → | Bell West Inc. | 2933 | Gimli | — |
| 2019-02-19 | 431-465 | not yet reported which blocks → | Bell West Inc. | 2933 | Lac Du Bonnet | — |
| 2019-02-19 | 431-466 | not yet reported which blocks → | Bell West Inc. | 2933 | Pine Falls | — |
| 2019-02-19 | 431-467 | not yet reported which blocks → | Bell West Inc. | 2933 | Winnipeg Beach | — |
| 2019-02-19 | 431-678 | not yet reported which blocks → | Bell West Inc. | 2933 | Stony Mountain | — |
| 2019-02-07 | 431-534 | not yet reported which blocks → | Bell West Inc. | 2933 | Amaranth | — |
| 2019-02-07 | 431-535 | not yet reported which blocks → | Bell West Inc. | 2933 | Anola | — |
| 2019-02-07 | 431-536 | not yet reported which blocks → | Bell West Inc. | 2933 | Lorette | — |
| 2019-02-07 | 431-537 | not yet reported which blocks → | Bell West Inc. | 2933 | Oakbank | — |
| 2019-02-01 | 431-671 | not yet reported which blocks → | Bell West Inc. | 2933 | Altona | — |
| 2019-02-01 | 431-672 | not yet reported which blocks → | Bell West Inc. | 2933 | Eriksdale | — |
| 2019-02-01 | 431-673 | not yet reported which blocks → | Bell West Inc. | 2933 | Grunthal | — |
| 2019-02-01 | 431-674 | not yet reported which blocks → | Bell West Inc. | 2933 | Niverville | — |
| 2019-02-01 | 431-675 | not yet reported which blocks → | Bell West Inc. | 2933 | Ste. Anne | — |
| 2019-02-01 | 431-676 | not yet reported which blocks → | Bell West Inc. | 2933 | Teulon | — |
| 2019-01-25 | 431-434 | not yet reported which blocks → | Bell West Inc. | 2933 | Cross Lake | — |
| 2019-01-25 | 431-435 | not yet reported which blocks → | Bell West Inc. | 2933 | Gillam | — |
| 2019-01-25 | 431-436 | not yet reported which blocks → | Bell West Inc. | 2933 | Norway House | — |
| 2019-01-25 | 431-437 | not yet reported which blocks → | Bell West Inc. | 2933 | Oxford House | — |
| 2019-01-25 | 431-438 | not yet reported which blocks → | Bell West Inc. | 2933 | Split Lake | — |
| 2019-01-25 | 431-439 | not yet reported which blocks → | Bell West Inc. | 2933 | St. Theresa Point | — |
| 2019-01-17 | 431-832 | not yet reported which blocks → | Bell West Inc. | 2933 | Alexander | — |
| 2019-01-17 | 431-833 | not yet reported which blocks → | Bell West Inc. | 2933 | Boissevain | — |
| 2019-01-17 | 431-834 | not yet reported which blocks → | Bell West Inc. | 2933 | Hamiota | — |
| 2019-01-17 | 431-835 | not yet reported which blocks → | Bell West Inc. | 2933 | Minnedosa | — |
| 2019-01-17 | 431-836 | not yet reported which blocks → | Bell West Inc. | 2933 | Rivers | — |
| 2019-01-17 | 431-837 | not yet reported which blocks → | Bell West Inc. | 2933 | Roblin | — |
| 2019-01-17 | 431-838 | not yet reported which blocks → | Bell West Inc. | 2933 | Strathclair | — |
| 2019-01-17 | 431-839 | not yet reported which blocks → | Bell West Inc. | 2933 | Virden | — |
| 2015-04-13 | 431-215 | not yet reported which blocks → | Bell West Inc. | 2933 | Steinbach | — |
| 2015-04-13 | 431-216 | not yet reported which blocks → | Bell West Inc. | 2933 | Morden | — |
| 2015-04-13 | 431-217 | not yet reported which blocks → | Bell West Inc. | 2933 | Flin Flon | — |
| 2015-04-13 | 431-218 | not yet reported which blocks → | Bell West Inc. | 2933 | Beausejour | — |
| 2015-04-13 | 431-219 | not yet reported which blocks → | Bell West Inc. | 2933 | Carberry | — |
| 2014-06-04 | 431-220 | not yet reported which blocks → | Bell West Inc. | 2933 | Dauphin | — |
| 2014-06-04 | 431-221 | not yet reported which blocks → | Bell West Inc. | 2933 | Neepawa | — |
| 2014-06-04 | 431-223 | not yet reported which blocks → | Bell West Inc. | 2933 | Stonewall | — |
| 2014-06-04 | 431-224 | not yet reported which blocks → | Bell West Inc. | 2933 | Thompson | — |
| 2014-06-04 | 431-237 | not yet reported which blocks → | Bell West Inc. | 2933 | Carman | — |
| 2014-06-04 | 431-238 | not yet reported which blocks → | Bell West Inc. | 2933 | Selkirk | — |
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.