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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.
Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces. Internationally, telephone numbers are systematically organized by the E.164 standard, while the Internet uses the Domain Name System (DNS) for linking ...
Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
The E.164 standard of the International Telecommunication Union is an international numbering plan and establishes a country calling code (country code) for each member organization. Country codes are prefixes to national telephone numbers that denote call routing to the network of a subordinate number plan administration, typically a country ...
(E.164 international format is supported from phones with the ability to dial the '+' symbol. [15]) There are other codes for using a non-default carrier or a special plan: 0014 will route through the Primus network; 0018 will route through the Telstra network; 0019 will route through the Optus network
The Swiss telephone numbering plan implements the ITU-T recommendation E.164 and is designated E.164/2002, based on its last major revision in 2002. It is a closed numbering plan, [1] which means that all telephone numbers, including the area code, have a fixed number of digits.
"List of ITU-T Recommendation E.164 assigned country codes" (PDF). Archived (PDF) from the original on 2012-01-31. This page was last edited on 14 November ...
The Mobile Station Roaming Number (MSRN) is an E.164 -defined telephone number used to route telephone calls in a mobile network from a GMSC (Gateway Mobile Switching Centre) to the target MAC id (c61fc003db4659a8). It can also be defined as a directory number temporarily assigned to a mobile for a mobile terminated call. A MSRN is assigned for ...