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  2. Telephone numbers in Canada - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Canada

    Telephone numbers in Canada. Telephone numbers in Canada follow the fixed-length format of the North American Numbering Plan (NANP) of a three-digit area code, a three-digit central office code (or exchange code), and a four-digit station or line code. This is represented as NPA NXX XXXX.

  3. National conventions for writing telephone numbers - Wikipedia

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

    Mobile numbers start with 06 or 07, followed by the subscriber number ("06 XX XX XX XX" or "07 XX XX XX XX"). The country code for Morocco is 212, so the format becomes "+212 Y XX XX XX XX" or "+212 YXX XX XX XX", also "+212 YXX-XXXXXX" as well, where Y is 5 for landlines or 6/7 for mobile.

  4. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    The NANP divides the territories of its members into numbering plan areas (NPAs) which are encoded numerically with a three-digit telephone number prefix, commonly termed the area code. Each telephone is assigned a seven-digit telephone number unique only within its respective numbering plan area.

  5. E.164 - Wikipedia

    en.wikipedia.org/wiki/E.164

    In the system, any telephone number may be mapped into a domain name using a reverse sequence of subdomains for each digit. For example, the telephone number +1 999 555 0123 translates to the domain name 3.2.1.0.5.5.5.9.9.9.1.e164.arpa.

  6. Ten-digit dialing - Wikipedia

    en.wikipedia.org/wiki/Ten-digit_dialing

    It is the practice of including the area code of a telephone number when dialing to initiate a telephone call. When necessary, the ten-digit number may be prefixed with the trunk code 1, which is referred to as 1+10-digit dialing or national format.

  7. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  8. 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.

  9. Telephone number - Wikipedia

    en.wikipedia.org/wiki/Telephone_number

    The format and allocation of local telephone numbers are controlled by each nation's respective government, either directly or by sponsored organizations (such as NANPA in the US or CNAC in Canada). In the United States, each state's public service commission regulates, as does the Federal Communications Commission .

  10. Telephone numbers in Mexico - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Mexico

    Telephone number format. All telephone numbers in Mexico have ten digits, of which the first identifies one of the eight principal geographic regions of the country. Map of principal geographic codes in Mexico

  11. Telephone numbers in the Americas - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_the...

    Telephone numbers in the Americas. All countries in the Americas use codes that start with "5", with the exception of the countries of the North American Numbering Plan, such as Canada and the United States, which use country code 1, and Greenland and Aruba with country codes starting with the digit "2", which mostly is used by countries in ...