4L
Euroline
Georgia
IATA
4L
Four Lima
ICAO
MJX
Radio Callsign
GEO-LINE
Example: "GEO-LINE One Two Three" for 4L123
About the "GEO-LINE" Callsign
When Euroline pilots communicate with air traffic control, they identify themselves using the radio callsign "GEO-LINE" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "GEO-LINE Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.