Airline Coding Directory and Location Identifiers

The Airline Coding Directory (ACD) is the official industry source for airline and location codes worldwide.

Airline Designator Codes are used as a single point of reference for reservations, schedules, timetables, telecommunications, ticketing, cargo documentation, legal, tariffs, and other commercial/traffic purposes. Airline accounting codes and airline prefixes are, on the other hand, essential for the identification of passenger and cargo traffic documents, processing of passenger accounting transactions, cargo transactions and other commercial/ traffic purposes.

Location Identifiers is a repository of worldwide airports as well as bus stations, rail stations and ferry ports that are involved in intermodal airline travel.

Together, Airline Designator Codes and Location Identifiers, compose a single reference database for airline and location codes globally.