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  2. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    For PIN code in Indian addresses, see Postal Index 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 ...

  3. Postal Index Number - Wikipedia

    en.wikipedia.org/wiki/Postal_Index_Number

    A Postal Index Number ( PIN; sometimes redundantly a PIN code) [note 1] refers to a six-digit code in the Indian postal code system used by India Post. On 15 August 2022, the PIN system celebrated its 50th anniversary.

  4. Postcodes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Postcodes_in_the_United...

    Postal codes used in the United Kingdom, British Overseas Territories and Crown dependencies are known as postcodes (originally, postal codes). They are alphanumeric and were adopted nationally between 11 October 1959 and 1974, having been devised by the General Post Office ( Royal Mail ). [2]

  5. Area codes 215, 267, and 445 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_215,_267,_and_445

    The need for new phone numbers in area codes 215/267 was delayed until 2018. Area code 445 was activated as an additional overlay code on February 3, 2018. This had the effect of assigning 23 million telephone numbers to a service territory of four million people. Despite Philadelphia's continued growth, 215/267/445 is nowhere near exhaustion.

  6. Postal code - Wikipedia

    en.wikipedia.org/wiki/Postal_code

    A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail . As of August 2021, the Universal Postal Union lists 160 ...

  7. Area codes 418, 581, and 367 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_418,_581,_and_367

    However, in the 1970s, as direct distance dialling was introduced to the far northern and western portions of 418, those areas were reassigned to area code 819. Despite Quebec City's rapid growth, by the turn of the millennium, area code 418 was the last of Quebec and Ontario's original four area codes not to have been split.

  8. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_code

    A 1974 postage stamp encouraging people to use the ZIP Code on letters and parcels. A ZIP Code (an acronym for Zone Improvement Plan [1]) is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly [2] ( zipping along) when senders use the ...

  9. Postal codes in Hong Kong - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Hong_Kong

    Hongkong Post advised to leave the postcode field blank or try to fill in with "000", "0000", "000000" or "HKG" wherever required. [1] The People's Republic of China's national postal service, China Post, has allocated postal code 999077 to Hong Kong, although this is only sporadically used when sending mail from Mainland China. [2]