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  2. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  3. Telephone numbers in Colombia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_colombia

    All landline subscriber numbers follow the pattern: 60B-YXX-XXXX; Where B is the dialing zone (where the number is located), Y is 2 to 8 (or 9 for pay phones), [2] [failed verification] and X is any digit.

  4. Telephone numbers in Papua New Guinea - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Papua...

    Telephone numbers in Papua New Guinea consist of mostly seven and some eight digit numbers (fixed), or eight digit numbers (mobile). The international prefix for Papua New Guinea was changed from ‘05’ to ’00’ in 2010.

  5. Telephone numbers in Romania - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Romania

    Z=2 and 3 means a landline number; the YX code is 1 (with extra digit for local number) for Bucharest, from 30 to 69 for a county code, and 70 to 79 for non-geographic landline numbers; Z =7 (and possibly 6 in the future) means a mobile number; 070p-xxxxxx numbers are reserved for virtual operators, while 071p-xxxxxx to 079p-xxxxxx are reserved ...

  6. Telephone numbers in Cambodia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Cambodia

    To dial a land line in Cambodia all over the country, the format is Area Code + Phone Number. The area code is 3 digits long, followed by a 6 or 7 digit phone number. Calls made from outside Cambodia must omit the prefix 0. Therefore, to call a land line number in Phnom Penh from other countries, dialing begins with +855 23 followed by 6 or 7 ...

  7. Telephone numbers in Kuwait - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Kuwait

    Number 41 was allocated for Virgin Mobile numbers (year 2022) Number 5 was added before all STC numbers; Number 6 was added before all Ooredoo Telecom - Formerly Wataniya Telecom numbers; Number 9 was added before all Zain numbers; All the three digit lines remained the same without any additional number e.g. 121, 107, 113, 112, etc.

  8. Telephone number - Wikipedia

    en.wikipedia.org/wiki/Telephone_number

    ITU-T recommendation E.123 describes how to represent an international telephone number in writing or print, starting with a plus sign ("+") and the country code. When calling an international number from a landline phone, the + must be replaced with the international call prefix chosen by the country

  9. Telephone numbers in Vietnam - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Vietnam

    Land line phone numbers in Vietnam follow the format Area Code + Phone Number. The area codes depend on the province and/or city. To dial a number within the same province or city, only the phone number needs to be dialed. When dialing from a different province/city or from a mobile phone, follow the format 0 + Area Code + Phone Number.