KO
Alaska Central Express
United States
IATA
KO
Kilo Oscar
ICAO
AER
Radio Callsign
ACE AIR
Example: "ACE AIR One Two Three" for KO123
About the "ACE AIR" Callsign
When Alaska Central Express pilots communicate with air traffic control, they identify themselves using the radio callsign "ACE AIR" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "ACE AIR Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.