list, ontario, area, codes, this, list, area, codes, province, ontario, london, kitchener, waterloo, windsor, most, southwestern, ontario, overlays, with, most, northeastern, central, ontario, overlays, with, niagara, region, hamilton, halton, region, peel, re. This is a list of area codes in the province of Ontario 226 London Kitchener Waterloo Windsor and most of Southwestern Ontario overlays with 519 and 548 249 Most of Northeastern and Central Ontario overlays with 683 and 705 289 Niagara Region Hamilton Halton Region Peel Region York Region and Durham Region overlays with 905 and 365 343 Ottawa and surrounding Eastern Ontario overlays with 613 365 Niagara Region Hamilton Halton Region Peel Region York Region and Durham Region overlays with 905 and 289 416 Toronto overlays with 647 and 437 437 Toronto overlays with 647 and 416 519 London Kitchener Waterloo Windsor and most of Southwestern Ontario overlays with 226 and 548 548 London Kitchener Waterloo Windsor and most of Southwestern Ontario overlays with 519 and 226 613 Ottawa and surrounding Eastern Ontario overlays with 343 647 Toronto overlays with 416 and 437 683 Most of Northeastern and Central Ontario overlays with 249 and 705 705 Most of Northeastern and Central Ontario overlays with 249 and 683 807 Most of Northwestern Ontario 905 Niagara Region Hamilton Halton Region Peel Region York Region and Durham Region overlays with 289 and 365References EditSee also Edit Ontario portalTelephone numbers in Canada Canadian Numbering Administration Consortium Retrieved from https en wikipedia org w index php title List of Ontario area codes amp oldid 1150855651, wikipedia, wiki, book, books, library,
