The International Civil Aviation Organization establishes sets of four-letter location indicators which are published in ICAO Publication 7910. These are used by air traffic control agencies to identify airports and by … See more

Since January 2019, the National Civil Aviation Agency of Brazil (ANAC) issues a six-digit designator called Aerodrome Identification Code (Portuguese: Código de Identificação de … See more

The Federal Civil Aviation Agency of Mexico (Agencia Federal de Aviación Civil, AFAC) is a designator of airfield codes, each consisting of three letters, used to identify each civil airfield in Mexico. (These characters are chosen with the same methodology as for … See more

The International Air Transport Association uses sets of three-letter IATA identifiers which are used for airline operations, baggage … See more

The Federal Aviation Administration location identifier (FAA LID) is a three- to five-character alphanumeric code identifying aviation-related facilities inside the United States, … See more

Transport Canada assigns two-, three-, and four-character identifiers, including three-letter identifiers beginning with letters Y and Z, for … See more

Within Russia (and before 1991 within the Soviet Union), there are airport identifiers (внутренний код - internal code) having three Cyrillic letters. … See more