Ontario Area Codes — 13 Codes
Ontario has 13 North American Numbering Plan area codes, covering about 0 people. The table lists each code with its largest towns, population and overlaps.
All area codes in Ontario
| Area code | Largest towns | Population | ZIP codes | Overlaps |
|---|---|---|---|---|
| 226 | Orangeville, Guelph, Brantford | 0 | 0 | 519 |
| 249 | Bracebridge, Parry Sound, Collingwood | 0 | 0 | 705 |
| 289 | Ajax, Brampton, Ancaster | 0 | 0 | 905 |
| 343 | Clarence-Rockland, Ottawa, Carleton Place | 0 | 0 | 613 |
| 365 | Hamilton, Oshawa | 0 | 0 | 905, 289 |
| 416 | Toronto, Ancaster | 0 | 0 | 705, 807 |
| 437 | Toronto | 0 | 0 | 647, 416 |
| 519 | London, Dorchester, St. Thomas | 0 | 0 | 226 |
| 613 | Perth, Ottawa, Smiths Falls | 0 | 0 | 343 |
| 647 | Toronto | 0 | 0 | 437, 416 |
| 705 | Peterborough, Parry Sound, Bracebridge | 0 | 0 | 249 |
| 807 | Dryden, Thunder Bay, Fort Frances | 0 | 0 | 705, 289 |
| 905 | Markham, Milton, Cobourg | 0 | 0 | 289 |
Largest cities in Ontario
Orangeville 226, 519Guelph 226, 519Brantford 226, 519London 226, 519St. Thomas 226, 519Kitchener 226, 519Windsor 226, 519Goderich 226, 519Paris 226, 519Woodstock 226, 519Sarnia 226, 519Owen Sound 226, 519Stratford 226, 519Aylmer 226, 519Hanover 226, 519Petrolia 226, 519Amherstburg 226, 519Bracebridge 249, 705Parry Sound 249, 705Collingwood 249, 705Greater Sudbury 249, 705Midland 249, 705Timmins 249, 705North Bay 249, 705Peterborough 249, 705Orillia 249, 705Barrie 249, 705Huntsville 249, 705Temiskaming Shores 249, 705Kirkland Lake 249, 705Kapuskasing 249, 705Ajax 289, 905Brampton 289, 905Ancaster 289, 416, 519, 613, 705, 807, 905Burlington 289, 905St. Catharines 289, 905Cobourg 289, 905Oakville 289, 905Oshawa 289, 365, 905Pickering 289, 905
Frequently asked questions
How many area codes does Ontario have?
Ontario uses 13 area codes.
What is the main area code in Ontario?
226 covers the largest population in Ontario.
How do I find the area code for a town?
Open the town in the city list above; each town page lists every area code assigned to it.