Apparatus

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sensors Mode-S transponder

3E5C40

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-KADC · SCHEIBE SF-25 Falke

Hex
3E5C40
Octal
17456100
Decimal
4,086,848
Country
DE
Tail
D-KADC
Type
SF25
No current signal · last broadcast 14h ago
Flights observed
10
Distinct callsigns
1
Country
DE
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 3E5C40.

Country allocation

The ICAO 24-bit address 3E5C40 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
DKADC - 10 2026-04-14

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 DKADC JUI → JUI Apr 14, 09:30 UTCApr 14, 10:35 UTC1h 5m
2026-04-14 DKADC - Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 DKADC - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-13 DKADC JUI → JUI Apr 13, 13:25 UTCApr 13, 15:30 UTC2h 5m
2026-04-13 DKADC JUI → JUI Apr 13, 12:20 UTCApr 13, 12:50 UTC30m
2026-04-13 DKADC JUI → JUI Apr 13, 11:55 UTCApr 13, 12:50 UTC55m
2026-04-13 DKADC JUI → JUI Apr 13, 11:15 UTCApr 13, 12:15 UTC1h 0m
2026-04-13 DKADC - Apr 13, 08:20 UTCApr 13, 10:30 UTC2h 10m
2026-04-13 DKADC - Apr 13, 07:55 UTCApr 13, 10:30 UTC2h 35m
2026-04-13 DKADC JUI → JUI Apr 13, 06:20 UTCApr 13, 08:15 UTC1h 55m

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

Mode-S 3E5C40 frequently asked

What is Mode-S code 3E5C40?
3E5C40 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-KADC.
Where is Mode-S 3E5C40 registered?
Mode-S code 3E5C40 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E5C40 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E5C40, octal 17456100, decimal 4,086,848.
What flights does 3E5C40 operate?
Mode-S 3E5C40 has broadcast 1 distinct callsign, including DKADC.