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Ontario State in Canada
Description
Ontario, Canada’s most populous province, is home to Toronto, Ottawa (the nation’s capital), and Niagara Falls. With global industries, top universities, and cultural diversity, Ontario is an economic and political powerhouse.

Ontario has multiple area codes: 416, 647, 437 (Toronto); 905, 289, 365 (Greater Toronto Area); 613 and 343 (Ottawa); 519, 226, and 548 (Southwestern Ontario); and 807 (Northwest). These Ontario area codes reflect the province’s population density and diverse regional structure.
Map
Area Codes
Major Cities
CityPrefixes
Waterdown
Streetsville
Pelham
Clarkson
Hamilton
Newmarket
Mount Hope
Hagersville
Caledonia
Saint Catharines Thorold
Aurora
Binbrook
Burlington
Oakville
Niagara Falls
Brampton
Welland
Port Credit
Richmond Hill
Port Colborne
Oshawa
Beamsville
Malton
Pickering
Fort Erie
Dunnville
Unionville
Cooksville
Grimsby
Dundas
Ancaster
Cobourg
Georgetown
Whitby
Niagara On The Lake
Ridgeway
Milton
Southpick
Toronto
Etobicoke
North York
York
Scarborough
East York
Mississauga
Maple
Markham
Trenton
Woodbridge
Concord