How to call Canada from the USA:

dial 1 + area code + phone number

Not calling from the US or Canada?

Calling Canada from the United States explained:

1 - country code for Canada
area code - 3 digit area codes
phone number - 7 digit numbers
US to Canada dialing format : 1 + ??? + ??? ????
this country is part of the North American Numbering Plan - NANP, therefore it is not necessary to dial the 011 exit code required for international calls

Province	City	Area Code(s)
Alberta	Banff, Calgary, Lethbridge, Medicine Hat	403, 587
Alberta	Edmonton, Grande Prairie, Jasper, Peace River	780, 587
British Columbia	Abbotsford, Richmond, Vancouver, Whistler	604, 778
British Columbia	Victoria	250
Manitoba	Single code	204
New Brunswick	Single code	506
Newfoundland	Single code	709
Northwest Territories	Single code	867
Nova Scotia	Single code	902
Nunavut	Single code	867
Ontario	Hamilton	905, 289
	London, Windsor	519, 226
	North Bay	705
	Ottawa	613
	Thunder Bay	807
	Toronto	416, 647
Prince Edward Island	Single code	902
Quebec	Quebec City	418/581
	Laval	450
	Montreal	514, 438
	Sherbrooke	819
Saskatchewan	Single code	306
Yukon Territory	Single code	867
Click here for a map of Canadian area codes