sensors Mode-S transponder

3C9CCE

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-BGFN · EMBRAER EMB-550 Praetor 600

Hex
3C9CCE
Octal
17116316
Decimal
3,972,302
Country
DE
Tail
D-BGFN
Type
E550
No current signal · last broadcast 15h ago
Flights observed
5
Distinct callsigns
1
Country
DE
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 3C9CCE.

Country allocation

The ICAO 24-bit address 3C9CCE 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 1 distinct

Callsign Airline Flights Last seen
ELG55G - 5 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 ELG55G - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-13 ELG55G - Apr 13, 15:50 UTCApr 13, 16:20 UTC30m
2026-04-13 ELG55G - Apr 13, 15:10 UTCApr 13, 16:15 UTC1h 5m
2026-04-13 ELG55G - Apr 13, 12:20 UTCApr 13, 13:10 UTC50m
2026-04-13 ELG55G - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m

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-BGFN page for operator, model, and routing details .

Mode-S 3C9CCE frequently asked

What is Mode-S code 3C9CCE?
3C9CCE is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-BGFN.
Where is Mode-S 3C9CCE registered?
Mode-S code 3C9CCE is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C9CCE broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C9CCE, octal 17116316, decimal 3,972,302.
What flights does 3C9CCE operate?
Mode-S 3C9CCE has broadcast 1 distinct callsign, including ELG55G.