World Area Codes

The Bureau of Transportation Statistics (BTS), as part of the United States Department of Transportation (US DOT), maintains a list of U.S. state and country codes, named World Area Codes (WAC).

Sources and external links

 * http://www.transtats.bts.gov/Fields.asp
 * http://www.transtats.bts.gov/DL_SelectFields.asp?Table_ID=315&DB_Short_Name=Aviation%20Support%20Tables
 * http://github.com/opentraveldata/opentraveldata/tree/master/data/countries/DOT