Apparatus

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sensors Mode-S transponder

3CCD59

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-CFBL · PILATUS PC-24

Hex
3CCD59
Octal
17146531
Decimal
3,984,729
Country
DE
Tail
D-CFBL
Type
PC24
Broadcasting now · callsign PTN22T · -125 ft
Flights observed
6
Distinct callsigns
2
Country
DE
Last broadcast
52m ago

Current position

3CCD59 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3CCD59 falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 2 distinct

Callsign Airline Flights Last seen
PTN71N - 4 2026-04-19
PTN22T - 2 2026-04-19

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-19 PTN22T - Apr 19, 15:10 UTCApr 19, 16:15 UTC1h 5m
2026-04-19 PTN22T - Apr 19, 13:20 UTCApr 19, 14:00 UTC40m
2026-04-19 PTN71N - Apr 19, 10:15 UTCApr 19, 11:55 UTC1h 40m
2026-04-18 PTN71N - Apr 18, 11:35 UTCApr 18, 12:30 UTC55m
2026-04-17 PTN71N - Apr 17, 17:25 UTCApr 17, 17:35 UTC10m
2026-04-17 PTN71N - Apr 17, 16:50 UTCApr 17, 17:15 UTC25m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the D-CFBL page for operator, model, and routing details .

Mode-S 3CCD59 frequently asked

What is Mode-S code 3CCD59?
3CCD59 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-CFBL.
Where is Mode-S 3CCD59 registered?
Mode-S code 3CCD59 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3CCD59 broadcasting right now?
Yes. Mode-S 3CCD59 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3CCD59, octal 17146531, decimal 3,984,729.
What flights does 3CCD59 operate?
Mode-S 3CCD59 has broadcast 2 distinct callsigns, including PTN71N, PTN22T.