sensors Mode-S transponder

3CE5D5

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-COIN · PILATUS PC-24

Hex
3CE5D5
Octal
17162725
Decimal
3,990,997
Country
DE
Tail
D-COIN
Type
PC24
No current signal · last broadcast 12h ago
Flights observed
7
Distinct callsigns
3
Country
DE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 3CE5D5.

Country allocation

The ICAO 24-bit address 3CE5D5 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 3 distinct

Callsign Airline Flights Last seen
PTN41E - 4 2026-04-13
PTN91F - 2 2026-04-13
PTN93H - 1 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 PTN93H - Apr 14, 09:30 UTCApr 14, 11:05 UTC1h 35m
2026-04-13 PTN91F - Apr 13, 19:50 UTCApr 13, 20:35 UTC45m
2026-04-13 PTN91F - Apr 13, 19:10 UTCApr 13, 20:10 UTC1h 0m
2026-04-13 PTN41E - Apr 13, 14:05 UTCApr 13, 15:30 UTC1h 25m
2026-04-13 PTN41E - Apr 13, 12:20 UTCApr 13, 12:50 UTC30m
2026-04-13 PTN41E - Apr 13, 11:55 UTCApr 13, 12:50 UTC55m
2026-04-13 PTN41E - Apr 13, 11:35 UTCApr 13, 12:15 UTC40m

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

Mode-S 3CE5D5 frequently asked

What is Mode-S code 3CE5D5?
3CE5D5 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-COIN.
Where is Mode-S 3CE5D5 registered?
Mode-S code 3CE5D5 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3CE5D5 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3CE5D5, octal 17162725, decimal 3,990,997.
What flights does 3CE5D5 operate?
Mode-S 3CE5D5 has broadcast 3 distinct callsigns, including PTN41E, PTN91F, PTN93H.