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  2. Telephone numbers in Canada - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Canada

    Telephone number representation. Canadian (and other North American Numbering Plan) telephone numbers are usually written as NPA-NXX-XXXX. For example, 250 555 0199, a fictional number, could be written as (250) 555-0199, 250-555-0199, 250-5550199, or 250/555-0199.

  3. Area codes 587, 825, and 368 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_587,_825,_and_368

    Alberta numbering plan areas and area codes. 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.

  4. Area codes 416, 647, and 437 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_416,_647,_and_437

    Coordinates: 43.687°N 79.393°W. 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.

  5. Canadian Numbering Administration Consortium - Wikipedia

    en.wikipedia.org/wiki/Canadian_Numbering...

    The Canadian Numbering Administration Consortium is the corporation responsible for administering Canada's telecommunication numbering resources. The CNA is regulated by the Canadian Radio-television and Telecommunications Commission (CRTC). [1] CNAC is headquartered in The Glebe area of Ottawa, Ontario . The CNAC selects and funds a neutral ...

  6. Interchangeable NPA and central office codes - Wikipedia

    en.wikipedia.org/wiki/Interchangeable_NPA_and...

    Interchangeable numbering plan area (NPA) codes and central office codes are codes that permit any of the ten numerals in the middle position of the area code and the central office code, which both are three-digit numbers. [1] [2] This change in numbering format was implemented first for central office codes by 1973, which eliminated the ...

  7. Area codes 778, 236, and 672 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_778,_236,_and_672

    Area codes 778, 236, and 672 are telephone area codes in the North American Numbering Plan (NANP) for the Canadian province of British Columbia. They form an overlay complex with area code 604, which serves only a small southwestern section, the Lower Mainland, of the province (including Vancouver ), and area code 250, which serves the rest of ...

  8. Area codes 514, 438, and 263 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_514,_438,_and_263

    Area codes 514, 438, and 263 are telephone area codes of the North American Numbering Plan (NANP) for Montreal and most of its on-island suburbs, specifically the Island of Montreal and Île Perrot in the Canadian province of Quebec.

  9. National conventions for writing telephone numbers - Wikipedia

    en.wikipedia.org/wiki/National_conventions_for...

    Landline numbers in Taiwan are written with the area code in parentheses [with phone numbers total nine digits] Example: (02) XXXX YYYY for phone numbers in Taipei area. Mobile phones have 3 digit "company code" assigned to different mobile service carriers such as (09**) XXXXXX followed by a 6 digit phone number.

  10. Service number - Wikipedia

    en.wikipedia.org/wiki/Service_number

    Service number. A service number (Roll number) is an identification code used to identify a person within a large group. Service numbers are most often associated with the military; however, they also may be used in civilian organizations. National identification numbers may be seen as types of service numbers.

  11. Google Voice - Wikipedia

    en.wikipedia.org/wiki/Google_Voice

    Overview. Google provides free PC-to-PC voice calling worldwide. As described above, Google Voice users in many countries may make low-cost calls to international phone numbers, and currently may also make free PC-to-phone calls within the United States and Canada.