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No numbering plan areas have been split in Canada since 1999. Area codes 807 and 867 are the only remaining Canadian area codes that are not part of an overlay. Calls within each of these numbering plan areas may be initiated by seven-digit dialing.
0–9. Area codes 204, 431, and 584; Area code 250; Area codes 306, 639, and 474; Area codes 418, 581, and 367; Area code 403; Area codes 416, 647, and 437
Canadian TWX service used area code 610 until 1992, when it was exchanged for 600. ... Canada area codes of 236, 250, 672, or 778 depending on its assigned number ...
Area codes 587, 825, and 368 are telephone area codes in the North American Numbering Plan (NANP) for the entire Canadian province of Alberta. They form an overlay with area code 403 of southern Alberta, and northern Alberta's 780 .
Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, or 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
In 1957, parts of 519 and 613 formed area code 705. An exhaustion study for area code 519 in the 1990s resulted in a recommendation to the Canadian Radio-television and Telecommunications Commission (CRTC) to add a second area code, 226, to the numbering plan area. In 1992, an overlay relief plan was approved (Telecom Decision CRTC 2002-25).
Area code 819 thus bordered area code 613 and the new area code 705 in Ontario, area code 418 in the east and the north of Quebec, and the remainder of area code 514 in the south of Quebec. When telephone service was introduced in the eastern Northwest Territories (most of which is now the territory of Nunavut , created in 1999), in Frobisher ...
A new overlay area code, 437, started operation on March 25, 2013. [6] [7] That effectively allocates 24 million numbers to a city of 2.5 million people. Area code 942 is scheduled for addition to the 416/647/437 overlay on April 26, 2025. [8] Area code 387 has been reserved for Toronto's future use.