Area code 431
Area code 431 holds 579 in-service central-office prefixes in the CNAC register, covering roughly 5,790,000 telephone numbers. They are split between 20 carriers and 146 rate centres. The largest is Winnipeg. Recorded assignments run from June 22, 2012 to June 30, 2026. That ranks it 34 of 55 Canadian area codes by prefix count.
Background reading: Caller ID spoofing, STIR/SHAKEN, and how to actually block calls in Canada · Canadian area codes, overlays, and what a 416 number actually tells you · One-ring scams and the Caribbean area codes that look Canadian
Area code 431 at a glance
- Province or territory
- Manitoba
- Main rate centres
- Winnipeg, Portage La Prairie, Stonewall, Brandon, Oakbank
- Local time
- — Central Time (CT), UTC−6; UTC−5 in daylight saving time
- In service since
- November 3, 2012
- Split or overlaid from
- 204
- Number format
- 431-NXX-XXXX · +1 431 NXX XXXX
Sources: CNAC, NANPA (September 25, 2026), Statistics Canada.
In numbers
- In-service prefixes
- 579
- Telephone numbers covered
- 5,790,000
- Carriers
- 20
- Rate centres
- 146
- Provinces and territories
- 1
- First assignment
- June 22, 2012
- Most recent assignment
- June 30, 2026
Who holds these numbers
Bell Mobility holds the largest share at 120 prefixes, 20.7% of the total, ahead of 19 other carriers.
| Carrier | Prefixes | Share | First assigned |
|---|---|---|---|
| Bell Mobility | 120 | 20.7 % | 2013 |
| TELUS Mobility | 59 | 10.2 % | 2016 |
| Bell West Inc. | 54 | 9.3 % | 2012 |
| Rogers Communications Canada Inc. (Wireless) | 54 | 9.3 % | 2012 |
| Iristel Inc. | 51 | 8.8 % | 2012 |
| Westman Media Cooperative Ltd | 49 | 8.5 % | 2016 |
| Fibernetics Corporation | 45 | 7.8 % | 2016 |
| Distributel | 35 | 6.0 % | 2015 |
| MTS Inc. | 32 | 5.5 % | 2012 |
| TELUS Integrated Communications | 23 | 4.0 % | 2013 |
| LES.NET (1996) Inc. | 21 | 3.6 % | 2013 |
| RFNow Inc. | 14 | 2.4 % | 2013 |
| ISP Telecom Inc. | 10 | 1.7 % | 2017 |
| Shaw Telecom Inc. | 3 | 0.5 % | 2018 |
| Videotron Ltd. | 3 | 0.5 % | 2023 |
| Fido Solutions Inc. | 2 | 0.3 % | 2016 |
| Comwave Networks | 1 | 0.2 % | 2021 |
| IXICA Communications Inc. | 1 | 0.2 % | 2023 |
| Rogers Communications Canada Inc. (Cable) | 1 | 0.2 % | 2017 |
| Zayo Canada Inc. | 1 | 0.2 % | 2025 |
Where these numbers land
Prefixes in 431 serve 146 rate centres. A rate centre is the billing area a prefix is attached to, not where the handset is.
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Winnipeg | MB | 153 | 19 |
| Portage La Prairie | MB | 15 | 6 |
| Stonewall | MB | 11 | 6 |
| Brandon | MB | 10 | 7 |
| Oakbank | MB | 9 | 5 |
| Austin | MB | 8 | 5 |
| Anola | MB | 7 | 4 |
| Dauphin | MB | 7 | 6 |
| Starbuck | MB | 7 | 4 |
| Steinbach | MB | 7 | 5 |
| Strathclair | MB | 7 | 7 |
| Thompson | MB | 7 | 5 |
| Holland | MB | 6 | 6 |
| Virden | MB | 6 | 6 |
| Altona | MB | 5 | 5 |
| Hamiota | MB | 5 | 5 |
| Lac Du Bonnet | MB | 5 | 5 |
| Melita | MB | 5 | 5 |
| Morden | MB | 5 | 4 |
| Pilot Mound | MB | 5 | 5 |
| Roblin | MB | 5 | 5 |
| Russell | MB | 5 | 5 |
| Selkirk | MB | 5 | 4 |
| Swan Lake | MB | 5 | 4 |
| Swan River | MB | 5 | 4 |
| Amaranth | MB | 4 | 4 |
| Churchill | MB | 4 | 4 |
| Clear Lake | MB | 4 | 4 |
| Cross Lake | MB | 4 | 4 |
| Deloraine | MB | 4 | 4 |
| Easterville | MB | 4 | 4 |
| Elie | MB | 4 | 4 |
| Gillam | MB | 4 | 4 |
| Grand Beach | MB | 4 | 4 |
| Minnedosa | MB | 4 | 4 |
| Morris | MB | 4 | 4 |
| Neepawa | MB | 4 | 4 |
| Norway House | MB | 4 | 4 |
| Notre Dame de Lourdes | MB | 4 | 4 |
| Oxford House | MB | 4 | 4 |
| Snow Lake | MB | 4 | 4 |
| Split Lake | MB | 4 | 4 |
| Ste. Rose du Lac | MB | 4 | 4 |
| The Pas | MB | 4 | 4 |
| Treherne | MB | 4 | 4 |
| Winkler | MB | 4 | 4 |
| Beausejour | MB | 3 | 3 |
| Bissett | MB | 3 | 3 |
| Boissevain | MB | 3 | 3 |
| Carman | MB | 3 | 3 |
| Crystal City | MB | 3 | 3 |
| Dugald | MB | 3 | 3 |
| Edwin | MB | 3 | 3 |
| Elm Creek | MB | 3 | 3 |
| Eriksdale | MB | 3 | 3 |
| Fisher River | MB | 3 | 3 |
| Flin Flon | MB | 3 | 3 |
| Gladstone | MB | 3 | 3 |
| Killarney | MB | 3 | 3 |
| Macgregor | MB | 3 | 3 |
| Manitou | MB | 3 | 3 |
| Rathwell | MB | 3 | 3 |
| Rivers | MB | 3 | 3 |
| Sanford | MB | 3 | 3 |
| Sidney | MB | 3 | 3 |
| Somerset | MB | 3 | 3 |
| St. Adolphe | MB | 3 | 3 |
| St. Claude | MB | 3 | 3 |
| St. Francois Xavier | MB | 3 | 3 |
| St. Theresa Point | MB | 3 | 3 |
| Teulon | MB | 3 | 3 |
| Alexander | MB | 2 | 2 |
| Arborg | MB | 2 | 2 |
| Ashern | MB | 2 | 2 |
| Carberry | MB | 2 | 2 |
| Eddystone | MB | 2 | 2 |
| Elkhorn | MB | 2 | 2 |
| Falcon Lake | MB | 2 | 2 |
| Fisher Branch | MB | 2 | 2 |
| Gimli | MB | 2 | 2 |
How the allocation was built up
| Period | Prefixes | Carriers |
|---|---|---|
| 2010–2014 | 49 | 8 |
| 2015–2019 | 332 | 16 |
| 2020–2024 | 175 | 17 |
| 2025–2029 | 22 | 7 |
1 undated in the register.
Overlay area codes
431 shares its rate centres with 204, 584. Overlay codes cover the same ground, which is why ten-digit dialling is required: two neighbours on one street can hold different area codes.
What people check and report about 431 numbers
Searches typed into this site's lookup form since July 28, 2026, plus the verdicts and moderated reports visitors left. A search usually follows a missed call.
- Checks
- 31
- Different numbers
- 29
- Different people
- 30
Phone and text fraud in Manitoba
In 2024 the Canadian Anti-Fraud Centre received 616 fraud reports from Manitoba where the first contact was a phone call (497) or a text (119); 364 came from victims, who reported $3.9 million lost. The most common types were service, bank investigator, emergency (jail, accident, hospital, help).
January to September 2025: 274 reports (-40% on the same months of 2024) and $1.6 million reported lost (-23%).
Source: Canadian Anti-Fraud Centre open data (Open Government Licence – Canada), current to September 29, 2025. These are province-wide figures, not specific to one area code, and only a fraction of fraud is ever reported. Dataset
Had a call from a 431 number?
No clear pattern in reports on these numbers yet. If a call worried you:
- Call back on a number you trust
If a caller says they are your bank, the Canada Revenue Agency, a courier or your phone company, hang up and call the organization on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- Report the fraud
Report the call or text to the Canadian Anti-Fraud Centre online or at 1-888-495-8501. If you lost money or gave out personal details, tell your bank first, then your local police.
- Register on the National Do Not Call List
Registering a landline or mobile on the National DNCL is free. Registered charities, political parties, newspapers and companies you already do business with may still call.
- Forward suspicious texts to 7726
Forward a scam or spam text to 7726 (SPAM on the keypad). It's free, and your carrier uses it to block the sender. Don't tap links or reply.
Area code 431: questions and answers
Where is area code 431?
431 serves Manitoba. Its 579 in-service prefixes belong to 146 rate centres, mainly Winnipeg, Portage La Prairie, Stonewall and Brandon.
What time zone is area code 431 in?
Every placed rate centre in 431 is on Central Time (CT, UTC−6), with daylight saving time (UTC−5) from the second Sunday in March to the first Sunday in November.
When did area code 431 start?
431 has been in service since November 3, 2012; it was created from 204. It shares its territory with 204 and 584, so a new number there can get any of these codes.
Which carriers hold 431 numbers?
The CNAC register lists 20 carriers with prefixes in 431; the largest are Bell Mobility (20.7%), TELUS Mobility (10.2%) and Bell West Inc. (9.3%). Numbers can be ported, so the original carrier may not be the current one.
Is phone fraud rising in Manitoba?
In the Canadian Anti-Fraud Centre's open data, call and text fraud reports from Manitoba went from 458 in January–September 2024 to 274 in the same months of 2025 (-40%). Reported losses went from $2.1 million to $1.6 million.
How do I report a scam call from a 431 number?
Report it to the Canadian Anti-Fraud Centre (1-888-495-8501). If you lost money, call your bank first, then your local police. Unwanted telemarketing goes to the National Do Not Call List, and spam texts can be forwarded to 7726.
Allocated prefixes
Showing 226 of 579 prefixes, largest rate centres first.
Winnipeg, MB
431-200 · 431-202 · 431-203 · 431-206 · 431-207 · 431-208 · 431-209 · 431-214 · 431-222 · 431-275
Portage La Prairie, MB
431-251 · 431-303 · 431-304 · 431-306 · 431-315 · 431-319 · 431-322 · 431-332 · 431-340 · 431-400
Stonewall, MB
431-223 · 431-244 · 431-302 · 431-305 · 431-368 · 431-381 · 431-442 · 431-443 · 431-509 · 431-528
Brandon, MB
431-210 · 431-213 · 431-308 · 431-432 · 431-483 · 431-540 · 431-541 · 431-542 · 431-602 · 431-720
Oakbank, MB
431-297 · 431-314 · 431-430 · 431-500 · 431-513 · 431-537 · 431-600 · 431-814 · 431-925
Austin, MB
431-300 · 431-492 · 431-531 · 431-533 · 431-538 · 431-544 · 431-729 · 431-902
Anola, MB
431-491 · 431-535 · 431-631 · 431-829 · 431-830 · 431-831 · 431-926
Dauphin, MB
431-220 · 431-345 · 431-401 · 431-560 · 431-603 · 431-721 · 431-738
Starbuck, MB
431-301 · 431-341 · 431-378 · 431-508 · 431-525 · 431-532 · 431-941
Steinbach, MB
431-205 · 431-215 · 431-366 · 431-562 · 431-607 · 431-698 · 431-726
Strathclair, MB
431-282 · 431-291 · 431-331 · 431-762 · 431-838 · 431-891 · 431-973
Thompson, MB
431-224 · 431-243 · 431-354 · 431-563 · 431-609 · 431-725 · 431-754
Holland, MB
431-225 · 431-358 · 431-501 · 431-550 · 431-776 · 431-903
Virden, MB
431-295 · 431-412 · 431-645 · 431-763 · 431-839 · 431-961
Altona, MB
431-342 · 431-402 · 431-671 · 431-733 · 431-965
Hamiota, MB
431-235 · 431-261 · 431-757 · 431-834 · 431-882
Lac Du Bonnet, MB
431-347 · 431-414 · 431-465 · 431-770 · 431-963
Melita, MB
431-604 · 431-722 · 431-727 · 431-741 · 431-886
Morden, MB
431-216 · 431-349 · 431-486 · 431-487 · 431-774
Pilot Mound, MB
431-268 · 431-455 · 431-515 · 431-736 · 431-868
Roblin, MB
431-271 · 431-760 · 431-837 · 431-890 · 431-937
Russell, MB
431-326 · 431-352 · 431-407 · 431-761 · 431-888
Selkirk, MB
431-238 · 431-339 · 431-484 · 431-561 · 431-606
Swan Lake, MB
431-320 · 431-369 · 431-529 · 431-870 · 431-929
Swan River, MB
431-281 · 431-363 · 431-608 · 431-724 · 431-743
Amaranth, MB
431-252 · 431-490 · 431-534 · 431-543
Churchill, MB
431-232 · 431-263 · 431-744 · 431-971
Clear Lake, MB
431-321 · 431-360 · 431-756 · 431-908
Cross Lake, MB
431-230 · 431-264 · 431-434 · 431-745
Deloraine, MB
431-236 · 431-361 · 431-740 · 431-889
Easterville, MB
431-227 · 431-265 · 431-462 · 431-766
Elie, MB
431-329 · 431-453 · 431-496 · 431-731
Gillam, MB
431-258 · 431-285 · 431-435 · 431-747
Grand Beach, MB
431-228 · 431-260 · 431-769 · 431-962
Minnedosa, MB
431-362 · 431-415 · 431-758 · 431-835
Morris, MB
431-350 · 431-605 · 431-723 · 431-742
Neepawa, MB
431-212 · 431-221 · 431-351 · 431-759
Norway House, MB
431-241 · 431-436 · 431-599 · 431-748
Notre Dame de Lourdes, MB
431-512 · 431-730 · 431-784 · 431-871
Oxford House, MB
431-231 · 431-267 · 431-437 · 431-749
Allocation source: Canadian Numbering Administrator (CNAC), the registry that records which carrier a central-office code was originally issued to. An allocation says who was issued the prefix, not who serves the number today: numbers can be ported between carriers, and caller ID can be spoofed outright.