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  2. Transaction authentication number - Wikipedia

    en.wikipedia.org/wiki/Transaction_authentication...

    The SMS may also include transaction data, allowing the user to verify that the transaction has not been modified in transmission to the bank. However, the security of this scheme depends on the security of the mobile phone system. In South Africa, where SMS-delivered TAN codes are common, a new attack has appeared: SIM Swap Fraud.

  3. Telephone numbers in South Africa - Wikipedia

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

    South Africa switched to a closed numbering system effective 16 January 2007. At that time, it became mandatory to dial the full 10-digit telephone number, including the zero in the three-digit area code, for local calls (e.g., 011 must be dialed from within Johannesburg).

  4. Mobile country code - Wikipedia

    en.wikipedia.org/wiki/Mobile_country_code

    Overview. The mobile country code consists of three decimal digits and the mobile network code consists of two or three decimal digits (for example: MNC of 001 is not the same as MNC of 01). The first digit of the mobile country code identifies the geographic region as follows (the digits 1 and 8 are not used): An MCC is used in combination ...

  5. 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 ...

  6. Telephone numbers in Africa - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Africa

    Telephone numbers in Namibia South Africa +27: 00: Telephone numbers in South Africa Eswatini +268: 00: Telephone numbers in Swaziland Zambia +260: 00: Telephone numbers in Zambia Zimbabwe +263: 00: Telephone numbers in Zimbabwe: West Africa Ascension Island (United Kingdom) +247: 00: Telephone numbers in Ascension Island Benin +229: 00 ...

  7. Telephone numbers in Eswatini - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Eswatini

    Country code. +268. International access. 00. Long-distance. n/a. Eswatini, then known as Swaziland, was allocated the country code +268 by the International Telecommunication Union, in the late 1960s. [1] To call a telephone number in Eswatini, the following format is used: yy xx xxxx.

  8. List of mobile telephone prefixes by country - Wikipedia

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

    268 7xx. 10. NANP member. Argentina. +54. 9/15. 10. All carriers: Claro, Movistar, Personal, Tuenti. 15 before the local number but after long distance area code for national calls (0 11 15 xxxx-xxxx) and 9 placed after the international access code excluding the 15 for international calls (+54 9 11 xxxx-xxxx).

  9. Short code - Wikipedia

    en.wikipedia.org/wiki/Short_code

    Short code. Short codes, or short numbers, are short digit-sequences—significantly shorter than telephone numbers —that are used to address messages in the Multimedia Messaging System (MMS) and short message service (SMS) systems of mobile network operators. [1] In addition to messaging, they may be used in abbreviated dialing.