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Flight Information Regions for Italy. 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 ...
A flight information service (FIS) is a form of air traffic service which is available to any aircraft within a flight information region (FIR), as agreed internationally by ICAO.
Area control centers (ACCs) control IFR air traffic in their flight information region (FIR). The current list of FIRs and ACCs is maintained by the International Civil Aviation Organization (ICAO). The following is the alphabetic list of all ACCs and their FIRs as of October 2011:
An ARTCC controls aircraft flying in a specified region of airspace, known as a flight information region (FIR), typically during the en route portion of flight. The purpose of control is to promote the safe, orderly, and expeditious flow of air traffic [ 2 ] and prevent collisions.
The flight information region controlled by a center may be further administratively subdivided into areas comprising two to nine sectors. Each area is staffed by a set of controllers trained on all the sectors in that area. Sectors use distinct radio frequencies for communication with aircraft.
The boundary between flight information regions and UIRs vary by country, but is usually above FL245 (24,500 feet) or FL660 (66,000 feet) depending on jurisdiction. [2] They are used to manage high level traffic such as commercial airliners and military aircraft. Some countries may have their boundary below FL245.