ICAO code

ICAO code may refer to:

• ICAO airport code, a four-character alphanumeric code designating each airport
• ICAO airline designator, a three-letter code designating each airline
• ICAO aircraft type designator, a three- or four-character alphanumeric code designating every aircraft type (and some sub-types) that may appear in flight planning
• ICAO aircraft marshalling signals, visual signalling between ground personnel and pilots on an airport, aircraft carrier or helipad
• ICAO 24-bit address, allocation of 24 bit addresses to states to uniquely identify aircraft worldwide
• ICAO altitude code aka Gillham code, an encoding used in older aircraft to report altitudes

This disambiguation page lists articles associated with the title ICAO code.
If an internal link led you here, you may wish to change the link to point directly to the intended article.