sensors Mode-S transponder

3D5820

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3D5820
Octal
17254040
Decimal
4,020,256
Country
DE
Tail
D-FFPW
Type
TBM9
No current signal · last broadcast 2d ago
Flights observed
15
Distinct callsigns
2
Country
DE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3D5820.

Country allocation

The ICAO 24-bit address 3D5820 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 2 distinct

Callsign Airline Flights Last seen
DFFPW - 8 2026-07-12
N - 7 2026-06-24

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-07-12 DFFPW - Jul 12, 10:25 UTCJul 12, 11:55 UTC1h 30m
2026-07-11 DFFPW - Jul 11, 10:45 UTCJul 11, 12:55 UTC2h 10m
2026-07-11 DFFPW - Jul 11, 08:20 UTCJul 11, 10:00 UTC1h 40m
2026-07-01 DFFPW - Jul 1, 11:30 UTCJul 1, 13:30 UTC2h 0m
2026-07-01 DFFPW - Jul 1, 08:00 UTCJul 1, 09:50 UTC1h 50m
2026-06-28 DFFPW LBG → HAM Jun 28, 10:35 UTCJun 28, 12:05 UTC1h 30m
2026-06-28 DFFPW - Jun 28, 07:54 UTCJun 28, 09:45 UTC1h 50m
2026-06-24 N - Jun 24, 14:00 UTCJun 24, 15:09 UTC1h 10m
2026-06-22 N - Jun 22, 14:29 UTCJun 22, 14:59 UTC30m
2026-06-22 N - Jun 22, 13:10 UTCJun 22, 13:35 UTC25m
2026-06-22 N - Jun 22, 11:19 UTCJun 22, 12:15 UTC55m
2026-06-18 N LDE → HAM Jun 18, 16:10 UTCJun 18, 18:45 UTC2h 35m
2026-06-18 N LDE → LDE Jun 18, 14:50 UTCJun 18, 14:55 UTC5m
2026-06-10 N - Jun 10, 07:25 UTCJun 10, 08:00 UTC35m
2026-05-28 DFFPW - May 28, 09:15 UTCMay 28, 10:25 UTC1h 10m

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

Mode-S 3D5820 frequently asked

What is Mode-S code 3D5820?
3D5820 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-FFPW.
Where is Mode-S 3D5820 registered?
Mode-S code 3D5820 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D5820 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 3D5820, octal 17254040, decimal 4,020,256.
What flights does 3D5820 operate?
Mode-S 3D5820 has broadcast 2 distinct callsigns, including DFFPW, N.