ZIP Code

  • a 1973 stamp encouraging people to use the zip code on letters and parcels.

    a zip code is a postal code used by the united states postal service (usps). introduced in 1963, the basic format consists of five digits. in 1983, an extended zip+4 code was introduced; it includes the five digits of the zip code, followed by a hyphen and four digits that designate a more specific location.

    the term zip is an acronym for zone improvement plan;[1] it was chosen to suggest that the mail travels more efficiently and quickly (zipping along)[citation needed] when senders use the code in the postal address. the term zip code was originally registered as a servicemark by the usps, but its registration expired in 1997.[2]

  • history
  • structure and allocation
  • other uses
  • see also
  • references
  • external links

A 1973 stamp encouraging people to use the ZIP Code on letters and parcels.

A ZIP Code is a postal code used by the United States Postal Service (USPS). Introduced in 1963, the basic format consists of five digits. In 1983, an extended ZIP+4 code was introduced; it includes the five digits of the ZIP Code, followed by a hyphen and four digits that designate a more specific location.

The term ZIP is an acronym for Zone Improvement Plan;[1] it was chosen to suggest that the mail travels more efficiently and quickly (zipping along)[citation needed] when senders use the code in the postal address. The term ZIP Code was originally registered as a servicemark by the USPS, but its registration expired in 1997.[2]