Area code 365
Area code 365 holds 706 in-service central-office prefixes in the CNAC register, covering roughly 7,060,000 telephone numbers. They are split between 20 carriers and 88 rate centres. The largest is Markham. Recorded assignments run from March 1, 2013 to June 12, 2026. That ranks it 26 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 365 at a glance
- Province or territory
- Ontario
- Local time
- — Eastern Time (ET), UTC−5; UTC−4 in daylight saving time
- In service since
- March 25, 2013
- Split or overlaid from
- 905
- Number format
- 365-NXX-XXXX · +1 365 NXX XXXX
Sources: CNAC, NANPA (September 25, 2026), Statistics Canada.
In numbers
- In-service prefixes
- 706
- Telephone numbers covered
- 7,060,000
- Carriers
- 20
- Rate centres
- 88
- Provinces and territories
- 1
- First assignment
- March 1, 2013
- Most recent assignment
- June 12, 2026
Who holds these numbers
Iristel Inc. holds the largest share at 155 prefixes, 22.0% of the total, ahead of 19 other carriers.
| Carrier | Prefixes | Share | First assigned |
|---|---|---|---|
| Iristel Inc. | 155 | 22.0 % | 2013 |
| TekSavvy Solutions Inc | 82 | 11.6 % | 2020 |
| Distributel | 71 | 10.1 % | 2015 |
| Fibernetics Corporation | 68 | 9.6 % | 2020 |
| IXICA Communications Inc. | 50 | 7.1 % | 2016 |
| ISP Telecom Inc. | 39 | 5.5 % | 2019 |
| Bell Mobility | 35 | 5.0 % | 2015 |
| Rogers Communications Canada Inc. | 35 | 5.0 % | 2019 |
| Beanfield Technologies Inc. | 33 | 4.7 % | 2021 |
| TELUS Integrated Communications | 32 | 4.5 % | 2016 |
| Rogers Communications Canada Inc. (Wireless) | 23 | 3.3 % | 2016 |
| Bell Canada | 22 | 3.1 % | 2016 |
| Rogers Communications Canada Inc. (Cable) | 20 | 2.8 % | 2017 |
| Videotron Ltd. | 16 | 2.3 % | 2016 |
| TELUS Mobility | 12 | 1.7 % | 2015 |
| InnSysVoice Corp | 5 | 0.7 % | 2015 |
| Comwave Networks | 3 | 0.4 % | 2013 |
| Fido Solutions Inc. | 3 | 0.4 % | 2016 |
| ExaTEL Inc. | 1 | 0.1 % | 2019 |
| Primus Telecommunications Canada Inc. | 1 | 0.1 % | 2016 |
Where these numbers land
Prefixes in 365 serve 88 rate centres. A rate centre is the billing area a prefix is attached to, not where the handset is.
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Markham | ON | 51 | 7 |
| Hamilton | ON | 48 | 13 |
| Brampton | ON | 27 | 13 |
| Thornhill | ON | 24 | 8 |
| Oshawa | ON | 23 | 12 |
| Ajax-Pickering | ON | 21 | 11 |
| Aurora | ON | 20 | 10 |
| Oakville | ON | 17 | 10 |
| St. Catharines-Thorold | ON | 15 | 10 |
| Newmarket | ON | 13 | 10 |
| Burlington | ON | 12 | 10 |
| Dunnville | ON | 11 | 7 |
| Milton | ON | 11 | 9 |
| Richmond Hill | ON | 10 | 7 |
| Streetsville | ON | 10 | 7 |
| Claremont | ON | 9 | 7 |
| Maple | ON | 9 | 8 |
| Niagara Falls | ON | 9 | 8 |
| Snelgrove | ON | 9 | 8 |
| Stoney Creek | ON | 9 | 7 |
| Castlemore | ON | 8 | 7 |
| Port Credit | ON | 8 | 6 |
| Schomberg | ON | 8 | 8 |
| Unionville | ON | 8 | 7 |
| Bowmanville | ON | 7 | 6 |
| Cayuga | ON | 7 | 6 |
| Cooksville | ON | 7 | 7 |
| Fort Erie | ON | 7 | 4 |
| Hagersville | ON | 7 | 7 |
| Kleinburg | ON | 7 | 6 |
| Malton | ON | 7 | 6 |
| Palgrave | ON | 7 | 7 |
| Winona | ON | 7 | 6 |
| Ancaster | ON | 6 | 6 |
| Beeton | ON | 6 | 6 |
| Bethesda | ON | 6 | 6 |
| Blackstock | ON | 6 | 6 |
| Bradford | ON | 6 | 6 |
| Caledonia | ON | 6 | 6 |
| Cobourg | ON | 6 | 3 |
| Gormley | ON | 6 | 6 |
| Keswick | ON | 6 | 6 |
| Orono | ON | 6 | 6 |
| Queensville | ON | 6 | 6 |
| Stouffville | ON | 6 | 6 |
| Victoria | ON | 6 | 6 |
| West Lincoln | ON | 6 | 5 |
| Woodbridge | ON | 6 | 6 |
| Binbrook | ON | 5 | 4 |
| Bolton | ON | 5 | 5 |
| Brooklin | ON | 5 | 5 |
| Caledon East | ON | 5 | 5 |
| Campbellville | ON | 5 | 5 |
| Clarkson | ON | 5 | 3 |
| Grimsby | ON | 5 | 4 |
| King City | ON | 5 | 5 |
| Mount Albert | ON | 5 | 5 |
| Newcastle | ON | 5 | 5 |
| Newtonville | ON | 5 | 5 |
| Niagara-On-The-Lake | ON | 5 | 5 |
| Nobleton | ON | 5 | 5 |
| Oak Ridges | ON | 5 | 5 |
| Sutton | ON | 5 | 5 |
| Tottenham | ON | 5 | 5 |
| Uxbridge | ON | 5 | 5 |
| Welland | ON | 5 | 3 |
| Dundas | ON | 4 | 4 |
| Fisherville | ON | 4 | 4 |
| Freelton | ON | 4 | 4 |
| Georgetown | ON | 4 | 4 |
| Hampton | ON | 4 | 4 |
| Port Perry | ON | 4 | 4 |
| Port Robinson | ON | 4 | 4 |
| Ridgeway | ON | 4 | 4 |
| Selkirk | ON | 4 | 4 |
| Stevensville | ON | 4 | 4 |
| Vineland | ON | 4 | 4 |
| Waterdown | ON | 4 | 4 |
| Whitby | ON | 4 | 4 |
| Beamsville | ON | 3 | 3 |
How the allocation was built up
| Period | Prefixes | Carriers |
|---|---|---|
| 2010–2014 | 4 | 2 |
| 2015–2019 | 314 | 16 |
| 2020–2024 | 366 | 13 |
| 2025–2029 | 22 | 5 |
Overlay area codes
365 shares its rate centres with 905, 289, 742. 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 365 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
- 48
- Different numbers
- 43
- Different people
- 45
4 verdicts and 0 reports
3 scam, 1 nuisance, 0 safe. Too few to show shares yet.
Phone and text fraud in Ontario
In 2024 the Canadian Anti-Fraud Centre received 5,002 fraud reports from Ontario where the first contact was a phone call (3,655) or a text (1,347); 2,814 came from victims, who reported $37.1 million lost. The most common types were service, phishing, bank investigator.
January to September 2025: 2,830 reports (-24% on the same months of 2024) and $43.3 million reported lost (+66%).
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 365 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 365: questions and answers
Where is area code 365?
365 serves Ontario. Its 706 in-service prefixes belong to 88 rate centres, mainly Markham, Hamilton, Brampton and Thornhill.
What time zone is area code 365 in?
Every placed rate centre in 365 is on Eastern Time (ET, UTC−5), with daylight saving time (UTC−4) from the second Sunday in March to the first Sunday in November.
When did area code 365 start?
365 has been in service since March 25, 2013; it was created from 905. It shares its territory with 289, 742 and 905, so a new number there can get any of these codes.
Which carriers hold 365 numbers?
The CNAC register lists 20 carriers with prefixes in 365; the largest are Iristel Inc. (22%), TekSavvy Solutions Inc (11.6%) and Distributel (10.1%). Numbers can be ported, so the original carrier may not be the current one.
Are calls from 365 numbers scams?
Visitors have left 4 verdicts on 365 numbers (3 scam, 1 nuisance, 0 safe) and 0 moderated reports. That covers the numbers people looked up, not all of 365: most belong to ordinary households and businesses, and scammers can display a local number.
Is phone fraud rising in Ontario?
In the Canadian Anti-Fraud Centre's open data, call and text fraud reports from Ontario went from 3,744 in January–September 2024 to 2,830 in the same months of 2025 (-24%). Reported losses went from $26.1 million to $43.3 million.
How do I report a scam call from a 365 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 332 of 706 prefixes, largest rate centres first.
Markham, ON
365-360 · 365-361 · 365-362 · 365-363 · 365-376 · 365-379 · 365-412 · 365-413 · 365-414 · 365-430
Hamilton, ON
365-227 · 365-317 · 365-323 · 365-324 · 365-336 · 365-356 · 365-357 · 365-366 · 365-378 · 365-384
Brampton, ON
365-230 · 365-231 · 365-293 · 365-333 · 365-341 · 365-370 · 365-417 · 365-440 · 365-488 · 365-532
Thornhill, ON
365-375 · 365-523 · 365-556 · 365-573 · 365-597 · 365-598 · 365-599 · 365-605 · 365-606 · 365-615
Oshawa, ON
365-244 · 365-334 · 365-358 · 365-377 · 365-391 · 365-392 · 365-393 · 365-394 · 365-442 · 365-499
Ajax-Pickering, ON
365-262 · 365-275 · 365-282 · 365-297 · 365-298 · 365-299 · 365-300 · 365-305 · 365-387 · 365-390
Aurora, ON
365-285 · 365-344 · 365-491 · 365-500 · 365-537 · 365-585 · 365-710 · 365-721 · 365-727 · 365-803
Oakville, ON
365-228 · 365-292 · 365-331 · 365-338 · 365-349 · 365-351 · 365-594 · 365-604 · 365-707 · 365-726
St. Catharines-Thorold, ON
365-359 · 365-383 · 365-524 · 365-653 · 365-660 · 365-664 · 365-668 · 365-674 · 365-718 · 365-785
Newmarket, ON
365-268 · 365-337 · 365-340 · 365-386 · 365-512 · 365-554 · 365-659 · 365-738 · 365-751 · 365-755
Burlington, ON
365-330 · 365-595 · 365-706 · 365-713 · 365-737 · 365-766 · 365-779 · 365-816 · 365-853 · 365-966
Dunnville, ON
365-209 · 365-467 · 365-588 · 365-651 · 365-661 · 365-760 · 365-761 · 365-772 · 365-916 · 365-938
Milton, ON
365-303 · 365-332 · 365-348 · 365-355 · 365-558 · 365-593 · 365-658 · 365-744 · 365-745 · 365-822
Richmond Hill, ON
365-255 · 365-550 · 365-569 · 365-717 · 365-750 · 365-819 · 365-820 · 365-821 · 365-826 · 365-887
Streetsville, ON
365-220 · 365-281 · 365-565 · 365-584 · 365-630 · 365-645 · 365-656 · 365-709 · 365-852 · 365-975
Claremont, ON
365-345 · 365-503 · 365-541 · 365-648 · 365-649 · 365-650 · 365-681 · 365-878 · 365-892
Maple, ON
365-217 · 365-385 · 365-388 · 365-418 · 365-492 · 365-508 · 365-548 · 365-617 · 365-922
Niagara Falls, ON
365-222 · 365-353 · 365-367 · 365-447 · 365-603 · 365-623 · 365-666 · 365-720 · 365-941
Snelgrove, ON
365-203 · 365-257 · 365-307 · 365-380 · 365-490 · 365-583 · 365-847 · 365-872 · 365-965
Stoney Creek, ON
365-218 · 365-319 · 365-498 · 365-601 · 365-602 · 365-620 · 365-663 · 365-670 · 365-927
Castlemore, ON
365-201 · 365-256 · 365-306 · 365-325 · 365-489 · 365-578 · 365-858 · 365-871
Port Credit, ON
365-202 · 365-242 · 365-280 · 365-531 · 365-582 · 365-629 · 365-851 · 365-865
Schomberg, ON
365-254 · 365-520 · 365-528 · 365-545 · 365-551 · 365-567 · 365-570 · 365-641
Unionville, ON
365-235 · 365-493 · 365-525 · 365-536 · 365-559 · 365-574 · 365-608 · 365-646
Bowmanville, ON
365-232 · 365-240 · 365-401 · 365-513 · 365-517 · 365-679 · 365-836
Cayuga, ON
365-208 · 365-342 · 365-446 · 365-466 · 365-868 · 365-937 · 365-962
Cooksville, ON
365-207 · 365-288 · 365-465 · 365-580 · 365-683 · 365-708 · 365-748
Fort Erie, ON
365-350 · 365-456 · 365-607 · 365-609 · 365-612 · 365-801 · 365-940
Hagersville, ON
365-215 · 365-226 · 365-252 · 365-273 · 365-372 · 365-861 · 365-924
Kleinburg, ON
365-286 · 365-287 · 365-318 · 365-445 · 365-507 · 365-547 · 365-622
Malton, ON
365-382 · 365-581 · 365-628 · 365-665 · 365-684 · 365-722 · 365-904
Palgrave, ON
365-225 · 365-259 · 365-284 · 365-516 · 365-534 · 365-564 · 365-733
Winona, ON
365-221 · 365-321 · 365-374 · 365-771 · 365-860 · 365-929 · 365-986
Ancaster, ON
365-210 · 365-213 · 365-261 · 365-496 · 365-902 · 365-930
Beeton, ON
365-246 · 365-290 · 365-369 · 365-560 · 365-686 · 365-901
Bethesda, ON
365-295 · 365-501 · 365-538 · 365-680 · 365-787 · 365-823
Blackstock, ON
365-239 · 365-264 · 365-408 · 365-669 · 365-812 · 365-834
Bradford, ON
365-234 · 365-247 · 365-250 · 365-266 · 365-828 · 365-900
Caledonia, ON
365-206 · 365-251 · 365-269 · 365-308 · 365-859 · 365-931
Cobourg, ON
365-389 · 365-398 · 365-399 · 365-400 · 365-714 · 365-724
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.