D6
Interair South Africa
South Africa
IATA
D6
Delta Six
ICAO
ILN
Radio Callsign
INLINE
Example: "INLINE One Two Three" for D6123
About the "INLINE" Callsign
When Interair South Africa pilots communicate with air traffic control, they identify themselves using the radio callsign "INLINE" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "INLINE Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.