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
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May 2026
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Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 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 | — |
| 2019-01-21 | 431-374 | not yet reported which blocks → | Bell Mobility | 6574 | Winnipeg | — |
| 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 | — |
| 2018-12-21 | 431-646 | not yet reported which blocks → | RFNow Inc. | 346G | Carberry | — |
| 2018-12-21 | 431-647 | not yet reported which blocks → | RFNow Inc. | 346G | Pipestone | — |
| 2018-12-18 | 431-380 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Macgregor | — |
| 2018-12-11 | 431-822 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Winkler | — |
| 2018-10-04 | 431-896 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | McCreary | — |
| 2018-10-04 | 431-897 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Sandy Lake | — |
| 2018-10-04 | 431-898 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | St. Lazare | — |
| 2018-09-25 | 431-720 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Brandon | — |
| 2018-09-21 | 431-788 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Winnipeg | — |
| 2018-09-21 | 431-885 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Winnipeg | — |
| 2018-09-21 | 431-887 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Winnipeg | — |
| 2018-09-21 | 431-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Winnipeg | — |
| 2018-09-04 | 431-858 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Hartney | — |
| 2018-08-24 | 431-895 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Elkhorn | — |
| 2018-07-23 | 431-894 | not yet reported which blocks → | Westman Media Cooperative Ltd | 120F | Gladstone | — |
| 2018-07-05 | 431-808 | not yet reported which blocks → | Iristel Inc. | 154E | Winnipeg | — |
| 2018-06-28 | 431-339 | not yet reported which blocks → | Bell Mobility | 6574 | Selkirk | — |
| 2018-06-19 | 431-532 | not yet reported which blocks → | Iristel Inc. | 154E | Starbuck | — |
| 2018-06-12 | 431-490 | not yet reported which blocks → | Distributel | 081E | Amaranth | — |
| 2018-06-12 | 431-491 | not yet reported which blocks → | Distributel | 081E | Anola | — |
| 2018-06-12 | 431-516 | not yet reported which blocks → | Distributel | 081E | Poplar Point | — |
| 2018-06-12 | 431-517 | not yet reported which blocks → | Distributel | 081E | Rathwell | — |
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.