ICAO Location Indicators. This document contains a list of ICAO four- letter location indicators and, for ease of reference, corresponding three- character. The ICAO airport code or location indicator is a four-letter code designating aerodromes around the world. These codes, as defined by the International Civil Aviation Organization and published in ICAO Document Location. dépositaires sont affichées sur le site web de l’OACI, à l’adresse Édition n° , décembre Doc , Indicateurs d’emplacement.

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Location Indicatorsare used by air traffic control and airline operations such as flight planning. ICAO codes are also used to identify other aviation facilities such as weather stationsInternational Flight Service Stations or Area Control Centerswhether or not they are located at airports.

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Flight information regions are also identified by a unique ICAO-code. The International Civil Aviation Organization was formed in under the auspices of the United Nationsand it established Flight Lcao Regions FIR s for controlling air traffic and making airport identification simple and clear.

Code selections in North America were based on existing radio station identifiers.

For example, radio stations in Canada were already starting with “C”, so it seemed logical to begin Canadian airport identifiers with a C Cxxx. The United States had many pre-existing airports with established mnemonic codes. Most of the rest of the world was classified in a more planned top-down manner. Thus Uxxx referred to the Soviet Union with the second letter denoting the specific region within it, and so forth. Europe had too many locations for only one starting letter, so it was split into Exxx for northern Europe and Lxxx for southern Europe.


The second letter was more specific: ICAO codes are separate and different from IATA codeswhich are generally used for airline timetablesreservations, and baggage tags. ICAO codes are commonly seen by passengers and the general public on flight-tracking services such as FlightAwarethough passengers will more often see the IATA codes, on their tickets and their luggage tags.

In general, the first letter is allocated by continent and represents a country or group of countries within that continent. The second letter generally represents a country within that region, and the remaining two are used to identify each airport.

The exception to this rule is larger countries that have single-letter country codes, where the remaining three letters identify the airport. There are a few exceptions to the regional structure of the ICAO code made for political or administrative reasons. Further, in region L Southern Europeall available 2-letter prefixes have been exhausted and thus no additional countries can be added. Thus when Kosovo declared independence, there was no space in the Lxxx codes to accommodate it, so airports in Kosovo were assigned BKxx, grouping Kosovo with Greenland and Iceland.

These codes are not to be confused with radio or television call signseven though both countries use four-letter call signs starting with those letters. For bigger countries like the UK or Germany this is not feasible, given the limited number of letter codes. From Wikipedia, the free encyclopedia. Not to be confused with International Air Transport Association airport code.


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This page was last edited on 20 Decemberat By using this site, you agree to the Terms of Use and Privacy Policy. United Kingdom and Crown dependencies. Saint Helena, Ascension and Tristan da Cunha. British Indian Ocean Territory.

Democratic Republic of the Congo. Spain Ceuta and Melilla. Sudan and South Sudan. Spain mainland section and Balearic Islands. Portugal including the Azores and Madeira. Turks and Caicos Islands. Kiribati Gilbert IslandsTuvalu.

ICAO Global Air Navigation Plan – ICAO Location Indicators (Doc )

SamoaUnited States American Samoa. New ZealandAntarctica. Jordan and the West Bank. Kiribati Canton Airfield, Phoenix Islands.

Federated States of MicronesiaPalau. Republic of China Taiwan. Republic of Korea South Korea.

Chile including Easter Island also SH. UK British Virgin Islands. Saint Vincent and the Grenadines.

Belarus and Russia Kaliningrad Oblast. TajikistanTurkmenistanUzbekistan.

BruneiMalaysia East Malaysia.