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Jul 01 2007

Today In History: ZIP Codes Introduced For US Mail

Everyone in the US knows what a Zip code is, but most don’t know what it stands for. The name ZIP, an acronym for Zone Improvement Plan, was created on July 1, 1963 to make the US Postal Service more efficient.

Mr. ZipZIP codes are numbered with the first digit representing a certain group of U.S. states, the second and third digits together representing a region in that group (or perhaps a large city) and the fourth and fifth digits representing more specific areas, such as small towns or regions of that city. The main town in a region (if applicable) often gets the first ZIP codes for that region; afterward, the numerical order often follows the alphabetical order.

Facts:

The White House has its own secret ZIP + 4 code, separate from the publicly known 20500, for the President of the United States and the First Family to receive private mail.

ZIP code 10048 was assigned to the World Trade Center complex in New York, New York (until its destruction on September 11, 2001).

The code 77230 was assigned in 2005 for mail delivery to victims of Hurricane Katrina being housed at the Houston Astrodome[7], and is still in service today as a P.O.-box-only code.

history, zip, us, mail, us mail, zip codes, postal codes, postal service

About the author

Timothy Haroutunian

Timothy Haroutunian is a ServiceNow Cloud Implementation Specialist at Acorio. ServiceNow is an IT Management solution that allows for a complete view of your IT and physical environment.

Permanent link to this article: http://www.armenianeagle.com/2007/07/01/today-in-history-zip-codes-introduced-for-us-mail/

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