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Zip+4 Code

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Zip+4 Code - definitions

Zip+4 Code - The numeric representation of ZIP+4 as opposed to the POSTNET representation as a barcode.

[Category=Postal ]

Source: USPS, 04 November 2009 14:28:48, http://www.usps.com/cpim/ftp/pubs/pub32/pub32q_z.html External


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NINE-DIGIT ZIP CODE - A USPS system designed to provide an automated means to utilize an extended ZIP code to sort mail down to small contiguous areas within a carrier route. (It has now been expanded, in Addressing_, to 11 digits. It is now 20 years old and shows no indication of any kind that it has increased productivity at the USPS. Moreover, the system, as planned, will not be complete for a decade or more.) Also known as the ZIP+4. Comprised of the 5-digit ZIP Code, and the 4-digit add-on. The add-on describes a block face, a specific building, a specific floor, or a specific company.

[Category=Database Marketing ]

Source: Postcom, 23 March 2010 09:21:08, http://postcom.org/public/admail_image/glossary.htm External


Zip+4 - Specific segments of geography within each ZIP Code are identified by a 4-digit number. Added to the ZIP Code, this number can designate a block face (one side of a block, from one intersection to the next), a specific building, a group of residences/businesses within a building, a specific floor or a specific company within a building.

- The designation by the USPS for the nine-digit ZIP coding structure. There are over 21,000,000 9-digit zip codes.

[Category=Database Marketing ]

Source: Postcom, 18 April 2010 10:41:50, http://postcom.org/public/admail_image/glossary.htm External


ZIP Plus 4 - USA - A 4-digit extension of the 5-digit ZIP Code (preceded by a hyphen) that, in conjunction with the ZIP Code, identifies a specific range of USPS delivery addresses.

United States Thoroughfare, Landmark, and Postal Address Data Standard (draft), 05 May 2010 08:55:48, http://www.fgdc.gov/standards/projects/FGDC-standards-projects/street-address/address-standard  External


ZIP+4 Code - [federal government] An enhanced ZIP Code that consists of the five-digit ZIP Code plus four additional digits that identify a specific geographic segment within the five-digit delivery area, such as a city block, office building, or other unit.

[Category=Geospatial ]

Source: esri, 16 October 2012 09:23:59, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation External


Data Quality Glossary.  A free resource from GRC Data Intelligence. For comments, questions or feedback: dqglossary@grcdi.nl