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2 Area codes by country, state, province, ... Illinois (City of Chicago, ... Newfoundland was added to the service area when it joined Canada in 1949. When 506 was ...
With the depletion of new numbers in area codes 312 and 773, an overlay of both of them, area code 872, was created in November 2009, beginning ten-digit dialing within the city limits of Chicago. The remaining area without an overlay in the northern part of Illinois, 708, eventually received such with area code 464 taking effect on January 21 ...
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
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.
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.
Area code 630 is the parent area code of the numbering plan area, created in a three-way area code split of area code 708 on August 3, 1996, with the southern suburbs keeping 708 and the northern suburbs receiving 847. Within a decade, 630 was close to exhaustion due to the growth of the Chicago suburbs and the proliferation of cell phones and ...
A similar step had been taken a year earlier in British Columbia, when area code 778 was converted into an overlay complex for the entire province. On April 9, 2016, the province was overlaid with an additional area code, 825. [6] As of January 21, 2022, the province is additionally overlaid with area code 368. [7] [8]
Canada Independent State in the World Ottawa CA PE 1950-01-01 1 961 96101 Newfoundland and Labrador Canada and Greenland Canada Independent State in the World Ottawa CA NL 1950-01-01 Originally called Newfoundland (including Labrador) with state code NL. Changed in 2002 for all time periods. 1 975 97501 Greenland Canada and Greenland Greenland