• ATC Callsigns
• Aircraft Callsigns

ATC Callsigns

• On initial contact always identify yourself

• The ATC Callsign may be omitted if good communication has been established

Pilot

Brussels CONTROL, BMA625 inbound KOK FL230, information A

ATC

BMA625, Brussels CONTROL, squawk ident

Pilot

Squawk ident, BMA625

ATC

BMA625, (Brussels CONTROL), identified 20NM west of KOK

Aircraft Callsigns

• On initial contact say the complete callsign - always use full callsigns when establishing communications
• After good communication has been established the abbreviated callsign may be used when initiated by ATC

• Always pronounce each digit separately
• Use the company radio callsign if possible (as shown on the flight strip in IvAc)
• If company radio callsign is unknown, spell the callsign using the NATO Alphabet

• Start with a call and a reply to establish contact, except when it is certain that the call will be received. After contact has been established, further identification or call until termination of the contact.

When it is uncertain which station is calling you, use the following:

ATC

Station calling Brussels Control say again your callsign ?

Pilot

Brussels Control, ESTAIL five two golf, inbound RODRI flightlevel one eight zero.

Call/Reply Procedure

• Call: Station called, Station calling

• Reply: Station calling, Answering station, Proceed with transmission

Pilot calling

Brussels Tower, ESTAIL one nin-er victor

ATC replying

ESTAIL one nin-er victor, Brussels Tower, GO AHEAD!

ATC calling

ESTAIL one nin-er victor, Brussels Tower

Pilot replying

Brussels Tower, ESTAIL one nin-er victor, GO AHEAD!

ICAO format Callsigns

• ICAO formatted callsigns start with the 3 letter ICAO code of the airline

Attach:Germany_Flag.gif Germany: DOUBLE and TRIPPLE for identical numbers in callsigns may be used if no confusion can exist

IATA Flight Numbers

• IATA formatted Flight Numbers start with the 2 letter IATA code of the airline and end with the flightnumber
• only used by travel agencies and on the passenger tickets (flight number)

examples: SN2268 TV884 KL1722 AF301

In reallife IATA abbreviations are NOT used by ATC or on flightplans. Only ICAO callsigns or full immatriculations are used !

Aircraft Immatriculation Callsigns

Aircraft Abbreviated Callsigns

• the first character of the registration
• at least the last two characters of the callsign

A pilot shall use his abbreviated callsign ONLY AFTER ATC has taken the initiative

• Use abbreviated call signs only after satisfactory communication has been established and no confusion with other aircraft on your frequency is possible.

Note: Either the name of the aircraft manufacturer or the aircraft model may be used instead of the first character

• the telephony designator of the aircraft operating agency (company callsign), followed by at least the last two characters of the callsign

Attach:FR_Flag.gif France: company callsign must be followed by complete registration.

• never abbreviate ICAO callsigns

CAUTION!

• Different aircraft, same abbreviated call sign: