The two-letter country codes are used by the U.S. Government for geographical data processing in many publications, such as the CIA World Factbook. The standard is also known as DAFIF 0413 ed 7 Amdt. No. 3 (Nov 2003) and as DIA 65-18 (Defense Intelligence Agency, 1994, "Geopolitical Data Elements and Related Features").
The FIPS 10-4 codes are similar to (but sometimes incompatible with) the ISO 3166-1 alpha-2 country codes. The standard also includes codes for the top-level subdivision of the countries, similar to but usually incompatible with the ISO 3166-2 standard. The ISO 3166 codes are used by the United Nations and for Internet top-level country code domains.
Non-sovereign entities are in parentheses.
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Resources - See also
The complete standard can be found at:
Updates to the standard are at
US Patent Issued on April 16 for "Telecommunications System with Improved Country Codes and Area Codes" (California Inventor)
Apr 16, 2013; ALEXANDRIA, Va., April 16 -- United States Patent no. 8,422,657, issued on April 16."Telecommunications system with improved...
Is plumbing research dead? A 13-story plumbing test tower at a New Jersey college was the last of its kind in the country.(codes)
Sep 01, 2010; When I was a sophomore at Stevens Institute of Technology (Hoboken, N.J the school made a big announcement that it would build a...