Codes for Airline and City in Aviation
Codes for Airline and City in Aviation Airport codes arose out of the convenience that the practice brought pilots for location identification in the 1930s. Initially, pilots in the United States used the two-letter code from the National Weather Service (NWS) for identifying cities. The International Air Transport Association has assigned each airline a 2-letter code and each airport a 3-letter code. The reason why these codes are assigned is so that these codes can be used for identification in documents and communication systems. The three-letter code is determined by first ensuring that it's unique and not in use by any other entity. The code might be assigned based on the name of the airport, the name of the city, or some other meaningful and relevant identifier if those letters are already taken. An IATA airport code, also known as an IATA location identifier, IATA station code or simply a location identifier is a three-letter geocode designating many airports and metropoli