The Area Codes of Canada: A B M N O Q S Y The 10 most frequently searched cities / regions or area codes: City/Town or RegionArea code 1.Alberta403 (+1 403) 2.Alberta587 (+1 587) 3.Alberta780 (+1 780) 4.Alberta825 (+1 825) 5.British Columbia236 (+1 236) 6.British Columbia778 (+1 778) 7.British Columbia (Vancouver Island & Mainland)250 (+1 250) 8.British Columbia (Vancouver)604 (+1 604) 9.Manitoba204 (+1 204) 10.Manitoba431 (+1 431)