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Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, originally termed International Codes by the International Telegraph and Telephone Consultative Committee (C.C.I.T.T.) in 1960, [1] but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone ...
ISO 3166-2 – Codes for the representation of names of countries and their subdivisions – Part 2: Country subdivision code [3] defines codes for the names of the principal subdivisions (e.g., provinces, states, departments, regions) of all countries coded in ISO 3166-1.
This is a listing of lists of country codes: List of ISO country codes (ISO 3166) ITU country code (International Telecommunication Union)
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
The fictitious telephone number (02) 3456 7890, as published locally in Sydney, Australia, is published in the form +61 2 3456 7890 for international use. In countries participating in the North American Numbering Plan, such as the United States or Canada, this number is dialed as 011 61 2 3456 7890, with 011 being the international call prefix in the NANP and 61 being the country code of ...
The complete ISO 3166-1 list of countries and their assigned codes, [13] listed in alphabetical order by the country's English short name used by the ISO 3166/MA: Each country's alpha-2 code is linked to more information about the assignment of its code elements.
In 1964, E.29 was expanded with a global code system based on world numbering zones. In the 1968 White Book, the definition of country codes was relegated to ITU Recommendation E.161. Codes were typically allocated by landmass and then subdivided by the capacity of each network at the time.
Code Country 001–019: UPC-A compatible - United States: 020–029: UPC-A compatible - Used to issue restricted circulation numbers within a geographic region [1] 030–039: UPC-A compatible - United States drugs (see United States National Drug Code) 040–049: UPC-A compatible - Used to issue restricted circulation numbers within a company ...