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  2. Telephone number verification - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_verification

    Check for valid number format. A JavaScript function can check to see if a phone number is a valid format, i.e., is numeric, starts with a valid set of numbers ("0" for local, or an international dialing prefix followed by a valid country code and is not too short to be a phone number. At first a JavaScript function is used to clear out any ...

  3. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    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.

  4. National conventions for writing telephone numbers - Wikipedia

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

    All telephone numbers in Iran have 11 digits (initial 0 and ten digits). The first two or three digits after the zero are the area code. The possibilities are: (0xx) xxxx xxxx (for landlines), 09xx xxx xxxx (for cellphones) and 099xx xxx xxx (for MVNO ). When making a call within the same landline area code, initial 0 plus the area code must be ...

  5. Snapchat adds free phone number verification to its list of ...

    techcrunch.com/2020/06/23/snapchat-adds-free...

    Verify basically works by checking whether the phone number a user just typed into the login flow of a Snap Kit app matches the phone number associated with the Snapchat account they used to log ...

  6. Telephone numbers in Norway - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Norway

    Telephone numbers in Norway have the country code "+47" and up to the first 2 digits of the phone number will indicate its geographic area. Emergency services are 3 digits long and start with the number "1". Mobile numbers vary in length, either 8 digits or 12 digits. Telephone numbers in Norway.

  7. Telephone numbers in South Korea - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_South...

    Call 051-212-3456 within Busan: 212-3456. Call 051-212-3456 from elsewhere: 051-212-3456. Call 02-312-3456 from abroad: +82-2-312-3456. South Korea uses an open dialing plan with a total length (including 0) of 9 to 11 digits and, within city, subscriber numbers 7 to 8 digits long. Dialing from mobile phones to any type of phone except 010 ...

  8. Telephone numbers in Kenya - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Kenya

    Land line phone numbers in Kenya follow the format Area Code + Phone Number. To dial a number within an area or city, only the phone number needs to be dialled. When dialling from a different area or city, the telephone number is dialled in the format 0 + Area Code + Phone Number. When dialling from abroad, the 0 is omitted.

  9. Telephone numbers in Egypt - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Egypt

    20 is the international dialing country code for Egypt. The telephone numbers are designated under the 2003 Telecom Act created by the Egyptian Ministry of Communications and Information Technology. The telephone numbers are designated under the 2003 Telecom Act created by the Egyptian Ministry of Communications and Information Technology.