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Overseas calls to locations outside the NANP are dialled with the 011 international prefix, followed by the country code and the national significant number. Canada was divided into nine numbering plan areas with unique area codes in 1947 when the American Telephone and Telegraph Company (AT&T) designed the first comprehensive telephone ...
Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.) reserved as a fourth area code to overlay 705/249/683 with no set date of implementation 461–462
Telephone numbers in area code 678 were first assigned to customers signing up for new telephone service on January 15, 1998. On September 2, 2001, area code 470, was added to the 678 overlay area of area codes 404 and 770. [1] Telephone numbers from the NPA were assigned after exhaustion of area code 678.
Area codes 705, 249, and 683 are telephone area codes in the North American Numbering Plan (NANP) for most of northeastern and central Ontario in Canada.Area code 705 was created in a 1956 area code split from portions of the 613 and 519 numbering plan areas.
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
Toronto. Area codes 416, 647, and 437 are telephone area codes in the North American Numbering Plan (NANP) for the city of Toronto, Ontario, Canada.Area code 416 is one of the original North American area codes created by the American Telephone and Telegraph Company (AT&T) in 1947.
Area codes 905, 289, 365, and 742 are telephone area codes in the North American Numbering Plan (NANP) for the Golden Horseshoe region that surrounds Lake Ontario in Southern Ontario, Canada. The numbering plan area (NPA) comprises (clockwise) the Niagara Peninsula , the city of Hamilton , the regional municipalities of Halton , Peel , York ...
Zone 2 uses two 2-digit codes (20, 27) and eight sets of 3-digit codes (21x–26x, 28x, 29x), mostly to serve Africa, but also Aruba, Faroe Islands, Greenland and British Indian Ocean Territory. Zones 3 and 4 use sixteen 2-digit codes (30–34, 36, 39–41, 43–49) and four sets of 3-digit codes (35x, 37x, 38x, 42x) to serve Europe .