226
Acton, Ailsa Craig, Alvinston, Amherstburg, Arkona, Arthur, Atwood, Aylmer, Ayr, Ayton, Baden, Bayfield, Beachville, Belle River, Belmont, B
778 prefixes
Phone numbers and area codes in Ontario
CNAC records 9,913 in-service central-office prefixes for Ontario, spread across 19 area codes, 724 rate centres and 59 carriers. Each area code is broken down below with its main rate centres and the number of prefixes it carries.
Background reading: Canadian area codes, overlays, and what a 416 number actually tells you · Your rights: caller data, privacy law and persistent callers
In numbers
- In-service prefixes
- 9,913
- Telephone numbers covered
- 99,130,000
- Carriers
- 59
- Rate centres
- 724
- Area codes
- 19
- First assignment
- October 13, 1999
- Most recent assignment
- August 11, 2026
Area codes
249
Alban, Algoma Mills, Algonquin Park, Alliston, Apsley, Attawapiskat, Azilda, Bailieboro, Bala, Barrie, Batchawana Bay, Baysville, Beaverton,
586 prefixes
289
Ajax-Pickering, Ancaster, Aurora, Beamsville, Beeton, Bethesda, Binbrook, Blackstock, Bolton, Bowmanville, Bradford, Brampton, Brooklin, Bur
772 prefixes
343
Adolphustown, Alexandria, Alfred, Almonte, Arden, Arnprior, Athens, Avonmore, Bancroft, Barry's Bay, Bath, Belleville, Bloomfield, Bourget,
638 prefixes
365
Ajax-Pickering, Ancaster, Aurora, Beamsville, Beeton, Bethesda, Binbrook, Blackstock, Bolton, Bowmanville, Bradford, Brampton, Brooklin, Bur
706 prefixes
382
Belmont, Brantford, Caledon, Centralia, Chatham, Clinton, Crediton, Delhi, Dorchester, Dundalk, Eastwood, Elora, Erin, Exeter, Fergus, Galt,
63 prefixes
416
Toronto
778 prefixes
437
Toronto
550 prefixes
519
Aberarder, Acton, Ailsa Craig, Alvinston, Alvinston Independant, Amherstburg, Arkona, Arthur, Atwood, Auburn, Aylmer, Ayr, Ayton, Baden, Bay
778 prefixes
548
Acton, Ailsa Craig, Alvinston, Amherstburg, Arthur, Atwood, Auburn, Aylmer, Ayr, Baden, Beachville, Belle River, Belmont, Blenheim, Blyth, B
504 prefixes
613
Adolphustown, Alexandria, Alfred, Almonte, Arden, Arnprior, Athens, Avonmore, Bancroft, Barry's Bay, Bath, Beachburg, Belleville, Bloomfield
770 prefixes
647
Toronto
778 prefixes
683
Alban, Algoma Mills, Algonquin Park, Alliston, Apsley, Bailieboro, Barrie, Bethany, Biscotasing, Bluewater, Bobcaygeon, Borden-Angus, Braceb
81 prefixes
705
Abitibi Canyon, Alban, Algoma Mills, Algonquin Park, Alliston, Apsley, Attawapiskat, Azilda, Bailieboro, Bala, Barrie, Batchawana Bay, Baysv
769 prefixes
742
Ajax-Pickering, Aurora, Beamsville, Beeton, Bethesda, Blackstock, Bolton, Bowmanville, Bradford, Brampton, Brooklin, Burlington, Caledon Eas
149 prefixes
753
Alexandria, Alfred, Almonte, Arnprior, Avonmore, Bancroft, Bath, Belleville, Bourget, Cardinal, Carleton Place, Casselman, Chesterville, Coe
105 prefixes
807
Armstrong, Atikokan, Balmertown, Barwick, Beardmore, Bears Passage, Bearskin Lake, Big Trout Lake, Caramat, Cat Lake, Clearwater Bay, Cloud
292 prefixes
905
Ajax-Pickering, Ancaster, Aurora, Beamsville, Beeton, Bethesda, Binbrook, Blackstock, Bolton, Bowmanville, Bradford, Brampton, Brooklin, Bur
772 prefixes
942
Toronto
44 prefixes
Where these numbers land
| Rate centre | Province | Prefixes | Carriers |
|---|---|---|---|
| Toronto | ON | 2,150 | 24 |
| Ottawa-Hull | ON | 442 | 21 |
| Hamilton | ON | 222 | 23 |
| London | ON | 218 | 24 |
| Kitchener-Waterloo | ON | 165 | 22 |
| Windsor | ON | 133 | 20 |
| Brampton | ON | 116 | 20 |
| Oshawa | ON | 111 | 21 |
| St. Catharines-Thorold | ON | 107 | 19 |
| Barrie | ON | 95 | 18 |
| Oakville | ON | 90 | 18 |
| Kingston | ON | 83 | 19 |
| Markham | ON | 82 | 18 |
| Ajax-Pickering | ON | 78 | 19 |
| Cooksville | ON | 77 | 15 |
| Sudbury | ON | 75 | 16 |
| Guelph | ON | 72 | 18 |
| Brantford | ON | 71 | 18 |
| Thornhill | ON | 71 | 18 |
| Thunder Bay | ON | 67 | 11 |
| Burlington | ON | 65 | 19 |
| Streetsville | ON | 64 | 17 |
| Newmarket | ON | 62 | 23 |
| Peterborough | ON | 60 | 16 |
| Belleville | ON | 55 | 18 |
| Chatham | ON | 52 | 17 |
| Sarnia | ON | 52 | 17 |
| Aurora | ON | 49 | 19 |
| Malton | ON | 49 | 18 |
| Unionville | ON | 48 | 16 |
| Cornwall | ON | 46 | 16 |
| Richmond Hill | ON | 46 | 19 |
| Sault Ste. Marie | ON | 45 | 14 |
| Hespeler | ON | 44 | 19 |
| North Bay | ON | 44 | 15 |
| Milton | ON | 41 | 16 |
| Kanata-Stittsville | ON | 39 | 15 |
| Owen Sound | ON | 37 | 16 |
| Niagara Falls | ON | 36 | 13 |
| Stratford | ON | 35 | 14 |
| Brockville | ON | 33 | 13 |
| Huntsville | ON | 33 | 15 |
| Kenora | ON | 31 | 5 |
| Lindsay | ON | 31 | 14 |
| Woodstock | ON | 31 | 12 |
| Collingwood | ON | 30 | 14 |
| Woodbridge | ON | 30 | 16 |
| Dunnville | ON | 28 | 14 |
| Galt | ON | 28 | 15 |
| Maple | ON | 28 | 14 |
| Orangeville | ON | 27 | 12 |
| Orillia | ON | 27 | 12 |
| Timmins | ON | 27 | 10 |
| Clarkson | ON | 26 | 14 |
| Cobourg | ON | 25 | 11 |
| Smiths Falls | ON | 25 | 13 |
| Alliston | ON | 24 | 13 |
| Bancroft | ON | 24 | 15 |
| Welland | ON | 24 | 13 |
| Whitby | ON | 24 | 12 |
Who holds these numbers
Bell Canada holds the largest share at 2,064 prefixes, 20.8% of the total, ahead of 58 other carriers.
| Carrier | Prefixes | Share | First assigned |
|---|---|---|---|
| Bell Canada | 2,064 | 20.8 % | 1999 |
| Rogers Communications Canada Inc. (Wireless) | 1,019 | 10.3 % | 1999 |
| Bell Mobility | 818 | 8.3 % | 1999 |
| Fibernetics Corporation | 746 | 7.5 % | 2006 |
| Iristel Inc. | 746 | 7.5 % | 2006 |
| TELUS Mobility | 562 | 5.7 % | 1999 |
| TELUS Integrated Communications | 554 | 5.6 % | 2000 |
| Rogers Communications Canada Inc. (Cable) | 467 | 4.7 % | 1999 |
| Distributel | 410 | 4.1 % | 2006 |
| ISP Telecom Inc. | 339 | 3.4 % | 2000 |
| Fido Solutions Inc. | 309 | 3.1 % | 1999 |
| Videotron Ltd. | 271 | 2.7 % | 2002 |
| TekSavvy Solutions Inc | 203 | 2.0 % | 2015 |
| IXICA Communications Inc. | 191 | 1.9 % | 2016 |
| InnSysVoice Corp | 153 | 1.5 % | 2014 |
| Comwave Networks | 133 | 1.3 % | 2012 |
| Zayo Canada Inc. | 132 | 1.3 % | 1999 |
| Bragg Communications Inc. | 118 | 1.2 % | 2008 |
| Execulink Telecom Inc. | 72 | 0.7 % | 2006 |
| Beanfield Technologies Inc. | 59 | 0.6 % | 2013 |
| Rogers Communications Canada Inc. | 58 | 0.6 % | 2019 |
| Primus Telecommunications Canada Inc. | 48 | 0.5 % | 2002 |
| ExaTEL Inc. | 42 | 0.4 % | 2001 |
| Cogeco Connexion Inc. | 41 | 0.4 % | 2023 |
| Nexicom Telecommunications Inc | 40 | 0.4 % | 2006 |
| Northern Telephone Ltd. | 40 | 0.4 % | 2008 |
| FGLTEL Inc. | 37 | 0.4 % | 2019 |
| Thunder Bay Telephone | 23 | 0.2 % | — |
| Quadro Communications Co-operative Inc. | 20 | 0.2 % | 2010 |
| Persona Communications Inc. | 16 | 0.2 % | 2002 |
| Shaw Telecom Inc. | 14 | 0.1 % | 2007 |
| Wightman Communications Ltd. | 14 | 0.1 % | 2005 |
| Bell Aliant, a division of Bell Canada | 12 | 0.1 % | 2012 |
| Managed Network Systems Inc. | 12 | 0.1 % | 2000 |
| Mornington Communications Co-operative Ltd. | 12 | 0.1 % | 2007 |
| Bruce Municipal Telephone System | 11 | 0.1 % | 2001 |
| Gosfield North Communication Co-operative Ltd. | 9 | 0.1 % | 2013 |
| Tuckersmith Communications Co-operative Ltd. | 9 | 0.1 % | 2006 |
| Westport Telephone Company Limited | 9 | 0.1 % | 2006 |
| TBayTel | 8 | 0.1 % | 2017 |
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 suspicious call?
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.
Ontario: questions and answers
What time zone are Ontario numbers in?
More than one: 643 rate centres are on Eastern Time (ET), UTC−5; UTC−4 in daylight saving time; 51 rate centres are on Central Time (CT), UTC−6; UTC−5 in daylight saving time; 1 rate centre is on Eastern Standard Time (EST), UTC−5, no daylight saving time.
How many phone prefixes does Ontario have?
The CNAC register lists 9,913 in-service prefixes in Ontario, about 99,130,000 numbers, held by 59 carriers across 724 rate centres and 19 area codes.
How much phone fraud is reported in Ontario?
In 2024 the Canadian Anti-Fraud Centre received 5,002 reports from Ontario where the first contact was a call or text, and victims reported $37.1 million lost. January to September 2025: 2,830 (-24% on a year earlier).
Where do I report a scam call in Ontario?
To the Canadian Anti-Fraud Centre (1-888-495-8501) and, if you lost money, your bank and then your local police. Unwanted telemarketing goes to the CRTC's National Do Not Call List; spam texts can be forwarded to 7726.
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.