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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2013-06-11 | 431-484 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Selkirk | — |
| 2013-06-11 | 431-485 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Winnipeg | — |
| 2013-06-04 | 431-234 | not yet reported which blocks → | MTS Inc. | 991B | Killarney | — |
| 2013-06-04 | 431-235 | not yet reported which blocks → | MTS Inc. | 991B | Hamiota | — |
| 2013-06-04 | 431-236 | not yet reported which blocks → | MTS Inc. | 991B | Deloraine | — |
| 2013-05-31 | 431-432 | not yet reported which blocks → | RFNow Inc. | 346G | Brandon | — |
| 2013-05-31 | 431-433 | not yet reported which blocks → | RFNow Inc. | 346G | Winnipeg | — |
| 2013-05-31 | 431-645 | not yet reported which blocks → | RFNow Inc. | 346G | Virden | — |
| 2013-05-10 | 431-282 | not yet reported which blocks → | MTS Inc. | 991B | Strathclair | — |
| 2013-05-10 | 431-283 | not yet reported which blocks → | MTS Inc. | 991B | Riverton | — |
| 2013-05-10 | 431-284 | not yet reported which blocks → | MTS Inc. | 991B | Manitou | — |
| 2013-05-10 | 431-285 | not yet reported which blocks → | MTS Inc. | 991B | Gillam | — |
| 2013-04-10 | 431-233 | not yet reported which blocks → | MTS Inc. | 991B | Ste. Rose du Lac | — |
| 2013-04-03 | 431-321 | not yet reported which blocks → | MTS Inc. | 991B | Clear Lake | — |
| 2013-04-02 | 431-231 | not yet reported which blocks → | MTS Inc. | 991B | Oxford House | — |
| 2013-04-02 | 431-232 | not yet reported which blocks → | MTS Inc. | 991B | Churchill | — |
| 2013-03-08 | 431-281 | not yet reported which blocks → | MTS Inc. | 991B | Swan River | — |
| 2013-03-08 | 431-641 | not yet reported which blocks → | MTS Inc. | 991B | Gimli | — |
| 2013-02-12 | 431-229 | not yet reported which blocks → | MTS Inc. | 991B | The Pas | — |
| 2013-02-12 | 431-230 | not yet reported which blocks → | MTS Inc. | 991B | Cross Lake | — |
| 2013-01-30 | 431-944 | not yet reported which blocks → | Bell Mobility | 6574 | Winnipeg | — |
| 2013-01-23 | 431-222 | not yet reported which blocks → | LES.NET (1996) Inc. | 141F | Winnipeg | — |
| 2012-10-31 | 431-800 | not yet reported which blocks → | Iristel Inc. | 154E | Winnipeg | — |
| 2012-10-03 | 431-210 | not yet reported which blocks → | Bell West Inc. | 2933 | Brandon | — |
| 2012-09-25 | 431-226 | not yet reported which blocks → | MTS Inc. | 991B | Bissett | — |
| 2012-09-25 | 431-227 | not yet reported which blocks → | MTS Inc. | 991B | Easterville | — |
| 2012-09-25 | 431-228 | not yet reported which blocks → | MTS Inc. | 991B | Grand Beach | — |
| 2012-09-07 | 431-225 | not yet reported which blocks → | MTS Inc. | 991B | Holland | — |
| 2012-07-10 | 431-251 | not yet reported which blocks → | Bell West Inc. | 2933 | Portage La Prairie | — |
| 2012-06-22 | 431-999 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Winnipeg | — |
| — | 431-308 | not yet reported which blocks → | TELUS Mobility | 8303 | Brandon | — |
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.