sensors Mode-S transponder

3E5CA3

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3E5CA3
Octal
17456243
Decimal
4,086,947
Country
DE
Tail
D-KAGX
Type
SF25
Broadcasting now · callsign DKAGX · 0 ft
Flights observed
8
Distinct callsigns
1
Country
DE
Last broadcast
20h ago

Current position

3E5CA3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3E5CA3 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
DKAGX - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 DKAGX JUI → JUI Apr 14, 09:20 UTCApr 14, 10:25 UTC1h 5m
2026-04-14 DKAGX - Apr 14, 07:10 UTCApr 14, 08:45 UTC1h 35m
2026-04-14 DKAGX - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-13 DKAGX JUI → JUI Apr 13, 12:20 UTCApr 13, 15:10 UTC2h 50m
2026-04-13 DKAGX - Apr 13, 11:55 UTCApr 13, 15:10 UTC3h 15m
2026-04-13 DKAGX - Apr 13, 08:45 UTCApr 13, 12:15 UTC3h 30m
2026-04-13 DKAGX - Apr 13, 07:55 UTCApr 13, 08:10 UTC15m
2026-04-13 DKAGX - Apr 13, 06:20 UTCApr 13, 08:10 UTC1h 50m

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

Mode-S 3E5CA3 frequently asked

What is Mode-S code 3E5CA3?
3E5CA3 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-KAGX.
Where is Mode-S 3E5CA3 registered?
Mode-S code 3E5CA3 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E5CA3 broadcasting right now?
Yes. Mode-S 3E5CA3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E5CA3, octal 17456243, decimal 4,086,947.
What flights does 3E5CA3 operate?
Mode-S 3E5CA3 has broadcast 1 distinct callsign, including DKAGX.