IATA, officially established on April 19, 1945, is the abbreviation of International Air Transport Association and an IATA code is linked to national and international airports.  IATA codes are being used for identification in documents and communication systems.

ICAO, officially established on December 7, 1944, is an abbreviation of International Civil Aviation Organization and is a two or four-letter code used by pilots and air traffic in their communication.

FAA, officially established on August 23, 1958, is an abbreviation of Federal Aviation Administration and is the governing body for aviation in the United States. The codes are often assigned to public or private airports in the USA.

In total the continent Africa contains 57 countries and 2102 airports. Of the 2102 airports in Africa, there are 46 large airports, 431 medium airports and 1625 small airports. The continent code of Africa is AF. The largest country in Africa is Algeria; the country code is DZA.

The largest airport in Africa is OR Tambo International Airport, located in South Africa. The IATA code of OR Tambo International Airport is JNB; the ICAO code is FAOR.

In total there are 2553 airports in Asia and 52 countries. Of the 2553 airports, there are 159 large airports, 1031 medium airports and 1142 small airports. The continent code of Asia is AS. The largest country in Asia is Russia and has the country code RUS.

Asia's largest airport is Beijing Capital International Airport, located in China. The IATA code of Beijing Capital International Airport is PEK, the ICAO code is ZBAA.

In total there are 3541 airports in Europe and 49 countries. Of the 3541 airports, there are 159 large airports, 867 medium airports and 2107 small airports. The continent code of Europe is EU. The largest country in Europe is Russia and has the country code RUS.

The largest airport in Europe is London Heathrow Airport, located in the United Kingdom. The IATA code of London Heathrow Airport is LHT; the ICAO code is EGLL.

In total there are 22784 airports in North America and 41 countries. Of the 22784 airports, there are 204 large airports, 1227 medium airports and 14730 small airports. The continent code of North America is NA. The largest country in North America is Canada and has the country code CAN.

The largest airport in North America is Hartsfield – Jackson Atlanta International Airport, located in the United States. The IATA code of Hartsfield-Jackson Atlanta International Airport is ATL; the ICAO code is KATL.

In total there are 5690 airports in South America in 14 countries. Of the 5690 airports, 21 are large airports, 399 medium airports and 4205 small airports. The continent code of South America is SA. The largest country in South America is Brazil and has the country code BRA.

South America's largest airport is Mexico City International Airport, located in Mexico. The IATA code of Mexico City International Airport is MEX; the ICAO code is MMMX.

In total there are 2642 airports in Oceania and 23 countries. Of the 2642 airports, there are 13 large airports, 315 medium airports and 2117 small airports. The continent code of Oceania is EU. The largest country in Oceania is Australia and has the country code AUS.

The largest airport in Oceania is Sydney Airport located in Australia. The IATA code of Sydney Airport is SYD; the ICAO code is YSSY.