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  2. This Is What Your ZIP Code Actually Means - AOL

    www.aol.com/zip-code-actually-means-235400396.html

    There are generally two widely accepted versions of a postal code: a ZIP code and a ZIP + 4 code. ... It can also do a reverse lookup and tell you all the cities covered by a particular ZIP code.

  3. Postal address verification - Wikipedia

    en.wikipedia.org/wiki/Postal_address_verification

    If the address is valid, it is assigned a ZIP+4 code something like this: 12344-5678, where the first five digits are the ZIP code and the trailing four digits are the delivery range. An address with a ZIP+4 code (or nine-digit ZIP code) is considered to be valid. In most cases, this means that the address is deliverable.

  4. 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 ...

  5. Address Management System - Wikipedia

    en.wikipedia.org/wiki/Address_Management_System

    Address-checking tools using AMS provide address standardization, as well as city/state and ZIP Code lookup features. [1] Business mailers use the USPS Address Management System:⁠-⁠[e correct ZIP Codes. City/state lookup services use AMS to provide the city and state corresponding to any given ZIP Code. [2]

  6. Delivery point - Wikipedia

    en.wikipedia.org/wiki/Delivery_point

    In order to receive the appropriate barcode discount, the delivery point digits and the +4 extension must be verified using an up-to-date, CASS or Delivery Point Validation (DPV) certified program. Since each city block or section of a rural route has a different +4 extension, and address numbers generally increase by 100 per block, the ...

  7. Address geocoding - Wikipedia

    en.wikipedia.org/wiki/Address_geocoding

    Address geocoding, or simply geocoding, is the process of taking a text-based description of a location, such as an address or the name of a place, and returning geographic coordinates, frequently latitude/longitude pair, to identify a location on the Earth's surface. [1]

  8. Postal codes in Canada - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Canada

    As of October 2019, there were 876,445 postal codes, [2] using forward sortation areas (FSAs), from A0A in Newfoundland to Y1A in Yukon. Canada Post provides a postal code look-up tool on its website [3] and via its mobile application, [4] and sells hard-copy directories and CD-ROMs. Many vendors also sell validation tools, which allow ...

  9. What Is a Billing Zip Code? How To Find Yours for Your ... - AOL

    www.aol.com/billing-zip-code-yours-credit...

    Go to USPS.com and click on “Find a Zip Code.” Look up your account information on the credit card company’s website. Call your credit card company’s customer service line.