Deciphering The Airport Code For You
An airport code is a short, secret language used to identify different airports around the world. There are two main kinds of codes, the IATA codes and the ICAO codes. The IATA is a three letter cipher that deals more with how travelers identify the airports. The ICAO is a four letter cipher and deals more with international airports and airline professionals.
The IATA abbreviation stands for the International Air Transport Association. The airport codes distributed by the IATA are used by airports everywhere, especially to mark luggage and find airline seats. The codes are issued by the IATA headquarters in Montreal, and are published biannually in the IATA coding directory. After being issued, all airports are given a unique three letter cryptogram. Codes that are defunct for any reason may be used again at a later date for some other airport, after a suitable time period has passed. These codes are highly useful for airport security, air cargo tracking, and for international airport transfers. If an airport does not have their own code because they are too small, then they are given a Location Identifier instead. The IATA also issues codes for railways.
The ICAO abbreviation stands for the International Civil Aviation Organization. This organization produces four letter cryptograms that are specifically designed to be used with international airport travel and transport. These international airport codes are published in the ICAO Document 7910: Location Indicators. These cryptograms are more for the use of airline professionals, such as air traffic controllers and flight planners, rather than for the general public. For example, Heathrow airport uses the IATA code of LHR, but the ICAO code is EGLL. The IACO airport code can also be used by weather stations, International Flight Service Stations and Area Control Centers, even if not located near an airport. The IACO ciphers are broken up by regions, and are considered comprehensive. Usually, the first letter stands for the continent or a group of countries within a continent, the second stands for a country in the region, and the last two letters are used to identify each unique airport. If an airport has no ICAO code, then sometimes the ZZZZ cipher is used for arranging flight plans and other such tasks.
It is interesting to note that while IATA codes and ICAO codes are both used to identify airports, they both have very different uses. The IATA codes are more for the traveling public, and the ICAO codes are used more for airline professionals. It is good to know about the secret language of an airport code, and to learn of their specific tasks.
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