HP
America West Airlines
United States
IATA
HP
Hotel Papa
ICAO
AWE
Radio Callsign
CACTUS
Example: "CACTUS One Two Three" for HP123
About the "CACTUS" Callsign
When America West Airlines pilots communicate with air traffic control, they identify themselves using the radio callsign "CACTUS" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "CACTUS Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.