Section 4. International Location Identifiers

  1. USE OF LOCATION INDICATORS

An international location indicator is a four-letter code used in international telecommunications. The location indicator for airports in the contiguous United States is the three-letter identifier preceded by “K”. For other non-contiguous United States airports, the following two letter prefix will be used:

Alaska - PA, PF, PO, PP
Hawaii - PH
Puerto Rico - TJ
Virgin Islands - TI
(See ICAO Document 7910 for listings.)

  1. REQUESTS OR ASSIGNMENTS OF LOCATION INDICATORS

Send requests for international location indicator assignments as follows:

  1. Within the United States and its jurisdictions to: Aeronautical Information Services (AIS), Federal Aviation Administration, Washington, DC 20591.
  2. From other States (nations) and Territories to: the appropriate agency within the State or Territory for coordination with ICAO.