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sensors Mode-S transponder

3D5899

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-FFUN · SOCATA TBM-900/910/930/940

Hex
3D5899
Octal
17254231
Decimal
4,020,377
Country
DE
Tail
D-FFUN
Type
TBM9
No current signal · last broadcast 2d ago
Flights observed
65
Distinct callsigns
1
Country
DE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3D5899.

Country allocation

The ICAO 24-bit address 3D5899 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
DFFUN - 65 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 DFFUN - Jul 17, 16:34 UTCJul 17, 18:40 UTC2h 5m
2026-07-16 DFFUN - Jul 16, 15:05 UTCJul 16, 16:40 UTC1h 35m
2026-07-16 DFFUN - Jul 16, 14:00 UTCJul 16, 14:25 UTC25m
2026-07-15 DFFUN - Jul 15, 10:40 UTCJul 15, 11:35 UTC55m
2026-07-15 DFFUN - Jul 15, 08:55 UTCJul 15, 09:45 UTC50m
2026-07-11 DFFUN - Jul 11, 11:00 UTCJul 11, 13:55 UTC2h 55m
2026-07-11 DFFUN - Jul 11, 07:35 UTCJul 11, 10:00 UTC2h 25m
2026-07-07 DFFUN CEG → FMO Jul 7, 19:40 UTCJul 7, 21:05 UTC1h 25m
2026-07-07 DFFUN FMO → CEG Jul 7, 07:25 UTCJul 7, 09:30 UTC2h 5m
2026-07-07 DFFUN - Jul 7, 06:25 UTCJul 7, 06:40 UTC15m
2026-07-06 DFFUN - Jul 6, 08:40 UTCJul 6, 08:55 UTC15m
2026-07-05 DFFUN - Jul 5, 13:10 UTCJul 5, 13:40 UTC30m
2026-07-05 DFFUN IBZ → BWE Jul 5, 08:25 UTCJul 5, 12:40 UTC4h 15m
2026-07-03 DFFUN - Jul 3, 10:25 UTCJul 3, 13:40 UTC3h 15m
2026-07-03 DFFUN - Jul 3, 09:25 UTCJul 3, 10:00 UTC35m
2026-07-01 DFFUN - Jul 1, 06:50 UTCJul 1, 07:35 UTC45m
2026-06-30 DFFUN - Jun 30, 10:55 UTCJun 30, 11:35 UTC40m
2026-06-24 DFFUN - Jun 24, 09:29 UTCJun 24, 10:30 UTC1h 0m
2026-06-24 DFFUN - Jun 24, 04:39 UTCJun 24, 05:29 UTC50m
2026-06-23 DFFUN - Jun 23, 17:34 UTCJun 23, 18:20 UTC45m
2026-06-23 DFFUN - Jun 23, 16:24 UTCJun 23, 16:59 UTC35m
2026-06-23 DFFUN - Jun 23, 09:24 UTCJun 23, 10:39 UTC1h 15m
2026-06-23 DFFUN - Jun 23, 06:44 UTCJun 23, 08:04 UTC1h 20m
2026-06-17 DFFUN - Jun 17, 12:30 UTCJun 17, 13:45 UTC1h 15m
2026-06-17 DFFUN - Jun 17, 09:50 UTCJun 17, 10:55 UTC1h 5m
2026-06-13 DFFUN IBZ → FMO Jun 13, 10:15 UTCJun 13, 13:40 UTC3h 25m
2026-06-13 DFFUN - Jun 13, 06:20 UTCJun 13, 09:20 UTC3h 0m
2026-06-12 DFFUN FMO → FMO Jun 12, 12:55 UTCJun 12, 16:35 UTC3h 40m
2026-06-09 DFFUN - Jun 9, 13:40 UTCJun 9, 14:50 UTC1h 10m
2026-06-09 DFFUN - Jun 9, 11:30 UTCJun 9, 13:05 UTC1h 35m
2026-06-09 DFFUN FMO → LME Jun 9, 09:05 UTCJun 9, 10:55 UTC1h 50m
2026-06-08 DFFUN - Jun 8, 14:35 UTCJun 8, 15:45 UTC1h 10m
2026-06-08 DFFUN - Jun 8, 13:00 UTCJun 8, 14:15 UTC1h 15m
2026-06-08 DFFUN - Jun 8, 10:00 UTCJun 8, 11:50 UTC1h 50m
2026-06-06 DFFUN IBZ → FMO Jun 6, 12:20 UTCJun 6, 15:10 UTC2h 50m
2026-06-06 DFFUN - Jun 6, 09:30 UTCJun 6, 11:25 UTC1h 55m
2026-06-06 DFFUN - Jun 6, 07:00 UTCJun 6, 08:50 UTC1h 50m
2026-06-04 DFFUN - Jun 4, 15:00 UTCJun 4, 16:40 UTC1h 40m
2026-06-04 DFFUN - Jun 4, 12:15 UTCJun 4, 14:15 UTC2h 0m
2026-05-17 DFFUN - May 17, 13:01 UTCMay 17, 14:05 UTC1h 5m
2026-05-17 DFFUN - May 17, 08:35 UTCMay 17, 09:45 UTC1h 10m
2026-05-14 DFFUN - May 14, 11:35 UTCMay 14, 11:50 UTC15m
2026-05-14 DFFUN - May 14, 08:45 UTCMay 14, 10:35 UTC1h 50m
2026-05-14 DFFUN - May 14, 05:40 UTCMay 14, 06:00 UTC20m
2026-05-11 DFFUN - May 11, 19:55 UTCMay 11, 20:20 UTC25m
2026-05-11 DFFUN - May 11, 17:25 UTCMay 11, 19:15 UTC1h 50m
2026-05-10 DFFUN - May 10, 15:19 UTCMay 10, 15:29 UTC10m
2026-05-07 DFFUN - May 7, 18:20 UTCMay 7, 19:35 UTC1h 15m
2026-05-07 DFFUN LEJ → BHX May 7, 12:15 UTCMay 7, 14:15 UTC2h 0m
2026-05-06 DFFUN - May 6, 15:40 UTCMay 6, 16:25 UTC45m

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

Mode-S 3D5899 frequently asked

What is Mode-S code 3D5899?
3D5899 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-FFUN.
Where is Mode-S 3D5899 registered?
Mode-S code 3D5899 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D5899 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D5899, octal 17254231, decimal 4,020,377.
What flights does 3D5899 operate?
Mode-S 3D5899 has broadcast 1 distinct callsign, including DFFUN.