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Telephone numbers in Canada follow the fixed-length Bell System format, consisting of the country code +1, followed by a three-digit area code, a three-digit central office code (or exchange code) and a four-digit station code. This is represented as 1-NPA-NXX-XXXX, in which the country code is "1".
Local calls from Canadian landlines must be dialled without the leading '1', which is used as the trunk prefix for domestic long distance calls. Toll calls from Canada to other North American Numbering Plan countries are dialled in the same format (eleven digits) as domestic calls. Overseas calls to locations outside country code +1 are dialled with the 011 international prefix, followed by the country code and the national significant number.
|Province / Territory||Codes (Overlays in Italic)|
|Alberta||403, 587, 780|
|British Columbia||250, 604, 778, 236|
|Newfoundland and Labrador||709|
|Nova Scotia and Prince Edward Island||902, 782|
|Ontario||226, 249, 289, 343, 416, 519, 613, 647, 705, 807, 905|
|Quebec||418, 438, 450, 514, 579, 581, 819, 873|
|Yukon, Northwest Territories and Nunavut||867|
As the recipient of a mobile call pays airtime, standard mobile phone numbers are not uniquely different from land-line numbers and follow the same format and area codes as for land-lines. Numbers may be ported between landline and mobile. The rarely-used non-geographic area code 600 is the one exception to this pattern.
Non-geographic toll-free telephone numbers (+1-800, 844, 855, 866, 877, 888) and premium-rate telephone numbers (+1-900) are allocated from the same blocks as the corresponding US numbers. Numbers with exchange code +1-NPA-976-XXXX are also expensive premium calls.