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Why do airports go by codes instead of their names For example LAX or YVR - Parkers Legacy

Why do airports go by codes instead of their names For example LAX or YVR

Well, can you imagine having to refer to General Edward Lawrence Logan International Airport or Sardar Vallabhbhai Patel International Airport constantly?IATA and ICAO codes are used instead, depending on the circumstance.Generally speaking, ATC will use 4-letter ICAO codes for identifiers, while 3-letter IATA codes are the identifiers seen on on luggage tags, Dep/Arr screens etc.

We also choose to use IATA codes for planning purposes, but this depends on the airport.The reason is because the IATA code tends to look more like an abbreviation of the actual airport name, whereas the ICAO codes are constructed with country prefixes and can be very difficult to guess if you aren’t familiar with them: e.g.