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A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. [1] Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of ...
E.164 is an international standard (ITU-T Recommendation), titled The international public telecommunication numbering plan, that defines a numbering plan for the worldwide public switched telephone network (PSTN) and some other data networks. E.164 defines a general format for international telephone numbers.
Worldwide distribution of country calling codes. Regions are coloured by first digit. 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.
International access. 011. List of dialing codes. The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1. Some North American countries, most notably ...
The international call prefix is defined in the telephone numbering plan of every country or telephone administration. The International Telecommunication Union (ITU) recommendation E.164 specifies the sequence 00 as a standard for the international call prefix and this has been implemented by the majority of countries. [1]
The French telephone numbering plan is used in Metropolitan France, French overseas departments and some overseas collectivities. Since 1996, Metropolitan France uses a ten-digit closed numbering plan, where the first two digits denote a geographic area, mobile or non-geographic number. 01 Île-de-France; 02 Northwest France; 03 Northeast France