Why you should know the airport codes for traveling around the world? Need to find out more info please check these site now!

Airport location identifiers, commonly known as airport codes, are assigned to airports throughout the world by the International Air Transport Association (IATA).  Along with airline designators and transport document accounting codes, these three-character codes are required to identify airlines, destinations, and traffic documents.  These three sets of codes are used by myriad computer systems to process passenger and cargo traffic information smoothly and efficiently from beginning to end of each flight.

Commercial Service Airports

The United States Federal Aviation Administration (FAA) designates publicly owned airports having more than twenty five hundred (2500) passenger boardings per year as Commercial Service Airports.  Of these airports, those having more than ten thousand (10000) passenger boardings per year are Primary Commercial Service Airports or simply Primary Airports while those having at least twenty five hundred (2500) and no more than ten thousand (10000) passenger boardings each year are Nonprimary Commercial Service Airports.