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The original numbering plan area (NPA) was split twice: in 1957 to create area code 819 and in 1998 to create area code 450. In 2006, the entire remaining 514 area was assigned a second area code, 438, in an overlay plan that made ten-digit dialing mandatory in the Montreal area. Area code 263 was added to the overlay in October 2022.
1955: split to give New Brunswick its own 506 area code; Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014: overlaid by 782; 851 reserved as a third area code for the region. 903
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.
This page was last edited on 22 January 2023, at 16:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The eastern part of Quebec received area code 418, while area code 514 was assigned for the western part. Nominally, northwestern Quebec, one of the few areas of North America without telephone service, was reassigned from area code 514 to area code 418 in 1957.
On May 7, 2009, the CRTC ruled that area code 438, which had been used as an overlay for area code 514 since 2006, would be extended to overlay area codes 450 and 514. [1] However, a later decision changed that to overlay only area code 450 with the new area code 579, effective August 21, 2010. [2]
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 ...
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