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Which of the following is the correct suffix for the ATC unit controlling the traffic using the movement area?
  • A
  • B
  • C
  • D
ICAO Annex 10
Volume II CALLING Radiotelephony Call signs for Aeronautical Stations
Note.- The formation of call signs as specified in ITU Radio Regulations S19 Section III and Section VII. Aeronautical stations in the aeronautical mobile service shall be identified by:
a) the name of the location; and
b) the unit or service available. The unit or service shall be identified in accordance with the table below except that the name of the location or the unit/service may be omitted provided satisfactory communication has beeen established.

Unit/service available Call sign suffix
area control centre CONTROL
approach control APPROACH
approach control radar arrivals ARRIVAL
approach control radar departures DEPARTURE
aerodrome control TOWER
surface movement control GROUND
radar (in general) RADAR
precision approach radar PRECISION
direction-finding station HOMER
flight information service INFORMATION
clearance delivery DELIVERY
apron control APRON
company dispatch DISPATCH
aeronautical station  RADIO

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