sensors Mode-S transponder

3D5403

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-FEBJ · PILATUS PC-12

Hex
3D5403
Octal
17252003
Decimal
4,019,203
Country
DE
Tail
D-FEBJ
Type
PC12
No current signal · last broadcast 17d ago
Flights observed
30
Distinct callsigns
1
Country
DE
Last broadcast
17d ago

Last known position

Most recent position reported by Mode-S 3D5403.

Country allocation

The ICAO 24-bit address 3D5403 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
DFEBJ - 30 2026-05-23

Recent flights last 30

DateFlightRouteTakeoffLandingDuration
2026-05-23 DFEBJ BRE → SGE May 23, 12:05 UTCMay 23, 12:50 UTC45m
2026-05-23 DFEBJ - May 23, 09:30 UTCMay 23, 11:30 UTC2h 0m
2026-05-23 DFEBJ - May 23, 06:30 UTCMay 23, 08:30 UTC2h 0m
2026-05-04 DFEBJ - May 4, 08:05 UTCMay 4, 08:25 UTC20m
2026-05-03 DFEBJ - May 3, 18:14 UTCMay 3, 19:34 UTC1h 20m
2026-05-03 DFEBJ - May 3, 15:20 UTCMay 3, 17:24 UTC2h 5m
2026-05-03 DFEBJ LTT → MGL May 3, 12:30 UTCMay 3, 14:25 UTC1h 55m
2026-05-02 DFEBJ OBF → LTT May 2, 15:00 UTCMay 2, 16:35 UTC1h 35m
2026-05-02 DFEBJ XFW → OBF May 2, 12:30 UTCMay 2, 14:10 UTC1h 40m
2026-05-02 DFEBJ - May 2, 07:10 UTCMay 2, 09:50 UTC2h 40m
2026-05-01 DFEBJ LIN → LTT May 1, 15:15 UTCMay 1, 16:10 UTC55m
2026-05-01 DFEBJ - May 1, 12:15 UTCMay 1, 13:55 UTC1h 40m
2026-05-01 DFEBJ - May 1, 07:45 UTCMay 1, 11:00 UTC3h 15m
2026-04-30 DFEBJ - Apr 30, 16:00 UTCApr 30, 17:20 UTC1h 20m
2026-04-30 DFEBJ - Apr 30, 13:55 UTCApr 30, 14:35 UTC40m
2026-04-30 DFEBJ - Apr 30, 11:05 UTCApr 30, 12:25 UTC1h 20m
2026-04-30 DFEBJ - Apr 30, 08:20 UTCApr 30, 10:05 UTC1h 45m
2026-04-29 DFEBJ - Apr 29, 10:50 UTCApr 29, 12:15 UTC1h 25m
2026-04-29 DFEBJ - Apr 29, 09:45 UTCApr 29, 10:05 UTC20m
2026-04-28 DFEBJ - Apr 28, 16:05 UTCApr 28, 17:10 UTC1h 5m
2026-04-28 DFEBJ STR → BRE Apr 28, 09:05 UTCApr 28, 10:15 UTC1h 10m
2026-04-27 DFEBJ - Apr 27, 16:20 UTCApr 27, 16:35 UTC15m
2026-04-27 DFEBJ LIN → MHG Apr 27, 14:45 UTCApr 27, 15:55 UTC1h 10m
2026-04-27 DFEBJ STR → LIN Apr 27, 12:30 UTCApr 27, 13:30 UTC1h 0m
2026-04-26 DFEBJ - Apr 26, 14:20 UTCApr 26, 15:00 UTC40m
2026-04-26 DFEBJ - Apr 26, 06:40 UTCApr 26, 08:30 UTC1h 50m
2026-04-26 DFEBJ FMO → HAM Apr 26, 05:00 UTCApr 26, 05:45 UTC45m
2026-04-25 DFEBJ FDH → FMO Apr 25, 16:10 UTCApr 25, 17:25 UTC1h 15m
2026-04-21 DFEBJ SGE → FDH Apr 21, 11:35 UTCApr 21, 12:30 UTC55m
2026-04-15 DFEBJ SGE → SGE Apr 15, 13:25 UTCApr 15, 13:30 UTC5m

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

Mode-S 3D5403 frequently asked

What is Mode-S code 3D5403?
3D5403 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-FEBJ.
Where is Mode-S 3D5403 registered?
Mode-S code 3D5403 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D5403 broadcasting right now?
No active broadcast right now. Last signal was 17d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D5403, octal 17252003, decimal 4,019,203.
What flights does 3D5403 operate?
Mode-S 3D5403 has broadcast 1 distinct callsign, including DFEBJ.