Flight information region

In aviation, a flight information region (FIR) is a specified region of airspace in which a flight information service and an alerting service (ALRS) are provided.

[1] The International Civil Aviation Organization (ICAO) delegates which country is responsible for the operational control of a given FIR.

FIRs are the largest regular division of airspace in use in the world today, and have existed at least since 1947.

Higher levels of air traffic advisory and control services may be available within certain portions of airspace within an FIR, according to the ICAO class of that portion of airspace (with regard to national regulations), and the existence of a suitably equipped authority to provide the services.

The following table lists flight information regions alphabetically according to their ICAO code.

Flight Information Regions for Italy
A map showing the borders of the United States ' flight information regions as well as that of Canada and other neighboring nations.
Old Federal Aviation Administration airspace map of ARTCCs in the United States overlaid with what states they cover
Flight Information Regions (FIR) of France
FIR and jurisdictional airspace in Japan
FIR and jurisdictional airspace in South Korea