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Find the mobile prefixes for different countries and territories, including Afghanistan, Åland, Algeria, American Samoa, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Aruba, Ascension Island, Australia, Austria, etc. The web page also shows the international calling codes, the size of NN (NSN), and the carriers for each prefix.
Learn how telephone numbers are written and dialed in different countries and regions, according to the ITU recommendation E.123. Compare the formats, lengths, prefixes and codes of landline, mobile, toll free and service numbers.
Learn about the history and usage of telephone exchange names or central office names, which were assigned to switching systems in different localities. Find out how they were dialed, displayed, and replaced by numeric systems in various countries.
Major cell phone carriers have started to adopt a new technology that helps direct callers to the 988 suicide and crisis hotline to help centers based on their physical location rather than their ...
Mobile number portability (MNP) is a service that allows mobile phone users to keep their phone numbers when changing networks. Learn about the technical details, implementation, impact and history of MNP in different countries.
A telephone number is a sequence of digits assigned to a device or subscriber for communication via the public switched telephone network or other networks. Learn about the history, formats, and functions of telephone numbers around the world.
A telephone prefix is the first set of digits after the country and area codes of a phone number. In North America, it is the first three digits of a local number, and in other countries it may have different lengths and meanings.
The North American Numbering Plan (NANP) is a telephone numbering system for twenty-five regions in twenty countries, primarily in North America and the Caribbean. It uses a three-digit area code to identify each numbering plan area (NPA) and a seven-digit telephone number for each subscriber.