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  2. List of postal codes - Wikipedia

    en.wikipedia.org/wiki/List_of_postal_codes

    The postal code refers to the post office at which the receiver's P. O. Box is located. Kiribati: KI – no codes - Korea, North: KP – no codes - Korea, South: 2015-08-01 KR: NNNNN Previously NNN-NNN (1988~2015), NNN or NNN-NN (1970~1988) Kosovo: XK: NNNNN A separate postal code for Kosovo was introduced by the UNMIK postal administration in ...

  3. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_Code

    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 code in the postal address. Introduced on July 1, 1963, the basic format comprised five ...

  4. List of ZIP Code prefixes - Wikipedia

    en.wikipedia.org/wiki/List_of_ZIP_Code_prefixes

    Each cell in this table contains a three-digit ZIP code prefix, the state where that ZIP code prefix is located, and the name of the United States Postal Service (USPS) Sectional Center Facility (SCF) that serves that ZIP code prefix, which may be in a different state. Each SCF may serve more than one three-digit ZIP code prefix.

  5. Postal address verification - Wikipedia

    en.wikipedia.org/wiki/Postal_address_verification

    Postal address verification. Postal address verification (also known as address, address validation, address verification and CASS certification [1]) is the process used to check the validity and deliverability of a physical mailing address. According to the United States Postal Service, an address is valid (or mailable) if it is CASS-certified ...

  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. Address Management System - Wikipedia

    en.wikipedia.org/wiki/Address_Management_System

    Address Management System. Address Management System (AMS) is the United States Postal Service master database of deliverable addresses. Address-checking tools using AMS provide address standardization, as well as city/state and ZIP Code lookup features. [1]

  8. United States Postal Service - Wikipedia

    en.wikipedia.org/wiki/United_States_Postal_Service

    The full eagle logo, used in various versions from 1970 to 1993. The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the United States, its insular areas, and its associated states.

  9. Delivery point - Wikipedia

    en.wikipedia.org/wiki/Delivery_point

    In the US Postal System, a delivery point is a specific set of digits between 00 and 99 assigned to every address. When combined with the ZIP + 4 code, the delivery point provides a unique identifier for every deliverable address served by the USPS.