Travel Agent Dir. Or at least it says so on the luggage tags found in these places, and it says so in the ledger book at the Montreal, Canada-based International Air Transport Assn.
Some code names are more obvious than others.
LAX seems reasonable enough as an acronym for Los Angeles International Airport. The answers to these questions are of no practical use to the leisure traveler. The International Air Transport Assn. With three letters to each airport code name, the system has room for 17,576 airports worldwide. IATA estimates that 100 to 150 new location identifiers are assigned each year.