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  2. E.164 - Wikipedia

    en.wikipedia.org/wiki/E.164

    The presentation of a telephone number with the plus sign indicates that the number should be dialed with an international calling prefix, in place of the plus sign. The number is presented starting the country calling code. This is called the globalized format of an E.164 number, and is defined in the Internet Engineering Task Force RFC 2806. [6]

  3. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    E.164 permits a maximum length of 15 digits for the complete international phone number consisting of the country code, the national routing code (area code), and the subscriber number. E.164 does not define regional numbering plans, however, it does provide recommendations for new implementations and uniform representation of all telephone ...

  4. National conventions for writing telephone numbers - Wikipedia

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

    Landlines: Written as AAA-BBBBBBB, where AAA is the Subscriber Trunk Dialing code (long-distance code) and BBBBBBB is the phone number. The total length of the Subscriber Trunk Dialing code and the phone number is ten digits. The Subscriber Trunk Dialing code can have from two digits (11 or 011) up to four digits.

  5. List of telephone country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_country...

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone number dialing prefixes for reaching subscribers in foreign countries or areas via international telecommunication networks.

  6. Telephone numbers in Europe - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Europe

    National number length Dialing plan International access code National trunk prefix Abkhazia † 7 840 (landline) / 7 940 (mobile) 7 variable 8~10 8 Albania: 355 8 (fixed), 9 (mobile) variable 00 0 Andorra: 376 6 or 9 (in special cases) fixed 00 – Armenia: 374 8 variable 00 0 Azerbaijan: 994 9 variable 00 0 Belarus: 375 9 variable 00 0

  7. Telephone numbers in Germany - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Germany

    Geographic area codes have a length of two to five digits. The maximum length of a complete telephone number is eleven digits. Numbers for geographic area codes are assigned to carriers in blocks. Subscriber numbers do not start with 0 or 11 and can be dialled without area code from landlines within the same geographic area code.

  8. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_telephone...

    Users can now switch carriers and keep their cell phone numbers, including prefix 89: Telenor (Bulgaria) Users can now switch carriers and keep their cell phone numbers, including prefix 988: Other mobile networks: Users can now switch carriers and keep their cell phone numbers, including prefix Burkina Faso +226: 70: 8: Telmob: 71: 72: 74 ...

  9. E.123 - Wikipedia

    en.wikipedia.org/wiki/E.123

    The dialing rules may include variable-length dialing for area code, trunk access and international access prefixes, central office/service access numbers, and calling cards tone numbers. [ 2 ] [ 3 ] With this approach, phone numbers stored in the phone book remain unchanged when the user moves to a different geographical location or selects a ...