Area codes 905, 289, and 365
AREA CODES IN SOUTHERN ONTARIO, CANADA
North American area code 905; Area code 289; Area code 905; The 905; Area code 905/289; 905 area code; 905-; Area code 365; Area code 742; Area codes 905 and 365; Area codes 365 and 905; Area codes 365 and 289; Area codes 905, 365 and 289; Area codes 289 and 365; Area codes 289, 365 and 905; Area codes 289, 905 and 365; Area codes 365, 905 and 289; Area codes 365, 289 and 905; Area codes 289 and 905; 289 area code; 365 area code; 742 area code; Area codes 905 and 289; Area codes 905, 289 and 365; 905 belt
Area codes 905, 289, 365, and 742 are telephone area codes in the North American Numbering Plan (NANP) for the Golden Horseshoe region that surrounds Lake Ontario in Southern Ontario, Canada. The numbering plan area (NPA) comprises (clockwise) the Niagara Peninsula, the city of Hamilton, the regional municipalities of Halton, Peel, York, Durham, and parts of Northumberland County, but excludes the City of Toronto.