Ontario Area Codes

Area code lookup

Ontario is currently using 14 area codes

226	London, Windsor, Kitchener, Guelph, Brantford, Sarnia, Woodstock, Orangeville, Stratford, Owen Sound
249	Barrie, Sudbury, Peterborough, North Bay
289	Mississauga, Hamilton, Brampton, Oshawa, Oakville, Burlington, Ajax, Milton, Newmarket, Welland
343	Ottawa, Kingston, Belleville, Cornwall, Brockville, Perth, Bancroft
365	Hamilton, Oshawa, Oakville, Burlington, Milton, Newmarket, Dunnville
416	Etobicoke, Toronto
437	Toronto
519	London, Windsor, Kitchener, Cambridge, Guelph, Brantford, Sarnia, Woodstock, Orangeville, Stratford
613	Ottawa, Kingston, Belleville, Cornwall, Brockville, Pembroke, Hawkesbury, Smiths Falls, Carleton Place, Arnprior
647	Toronto
705	Barrie, Sudbury, Peterborough, North Bay, Timmins, Midland, Orillia, Huntsville, Collingwood, Elliot Lake
807	Thunder Bay, Fort Frances, Marathon, Dryden, Kenora, Nestor Falls, Sioux Lookout, Webequie, White River
905	Mississauga, Hamilton, Brampton, Markham, Oshawa, Richmond Hill, Oakville, Burlington, Ajax, Toronto

Find out how many area codes in Ontario including largest cities/towns covered