Ontario Information

Country Canada
State / Territory Ontario
Time Zone Eastern
Majorcities:
Area codes 905, 289 and 365 cover a portion of southern Ontario including Niagara Falls and the Greater Toronto Area, and the larger communities of Ajax, Ancaster, Aurora, Brampton, Burlington, Caledon, Cobourg, Dunnville, Fort Erie, Georgetown, Hamilton, King Township, Maple, Markham, Milton, Mississauga, Newmarket, Oshawa, Richmond Hill, St. Catharines, Stoney Creek, Thornhill, Unionville, Welland, Woodbridge and many smaller surrounding communities in the area codes 905 and 289 overlay service area.
Ontario Area Code Directory
226 249 289 343 365 416 437 519 548 613 647 705 807 905