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  2. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    Personal identification number. A personal identification number ( PIN ), or sometimes redundantly a PIN number or PIN code, is a numeric (sometimes alpha-numeric) passcode used in the process of authenticating a user accessing a system. The PIN has been the key to facilitating the private data exchange between different data-processing centers ...

  3. What’s a Personal Identification Number (PIN) - AOL

    www.aol.com/finance/personal-identification...

    An individual’s PIN is the four-digit code they set after opening a debit account with their bank of choice. It is used as a layer of authentication when they perform an electronic transaction ...

  4. Google Authenticator - Wikipedia

    en.wikipedia.org/wiki/Google_Authenticator

    A portion of the HMAC is extracted and displayed to the user as a six-digit code; The last nibble (4 bits) of the result is used as a pointer, to a 32-bit integer, in the result byte array, and masks out the 31st bit. License. The Google Authenticator app for Android was originally open source, but later became proprietary.

  5. List of postal codes - Wikipedia

    en.wikipedia.org/wiki/List_of_postal_codes

    NNNNN for PO Boxes. NNNNN-NNNN for home delivery. A complete 13-digit code has 5-digit number representing region, sector, city, and zone; 4-digit X between 2000 and 5999; 4-digit Y between 6000 and 9999. [22] Digits of 5-digit code may represent postal region, sector, branch, section, and block respectively.

  6. Postal codes in Malaysia - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Malaysia

    Postal codes in Malaysia, usually referred to as postcodes (Malay: poskod), are five digit numeric. The first two digits of the postcode denote the state or federal territory (e.g. 42000 Port Klang , Selangor ).

  7. Postal codes in Taiwan - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Taiwan

    Postal codes ( Chinese: 郵遞區號; pinyin: Yóudì qūhào; Pe̍h-ōe-jī: Iû-tē khu-hō) in Taiwan is a system of three + three digits used by Chunghwa Post. [1] There are 368 sets of three-digit codes for townships, county-administered cities, and districts in Taiwan . The cities of Chiayi and Hsinchu have a single code covering all ...

  8. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_code

    In 1983, the U.S. Postal Service introduced an expanded ZIP Code system that it named ZIP+4, often known as "plus-four codes", "add-on codes", or "add-ons". A ZIP+4 Code uses the basic five-digit code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an ...

  9. Postal codes in Singapore - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Singapore

    Blk 147 Simei Street 2. Singapore 52 0 147. Blk 147 Tampines Avenue 5. Singapore 52 1 147. Similarly, for a HDB residential block sharing the same number as another block in the same postal sector, but have an added suffix behind are differentiated by their postal codes as follows: Blk 150 Bishan Street 11.