Apparatus

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sensors Mode-S transponder

3D0DDF

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EDMT · CESSNA 172 Skyhawk

Hex
3D0DDF
Octal
17206737
Decimal
4,001,247
Country
DE
Tail
D-EDMT
Type
C172
No current signal · last broadcast 2d ago
Flights observed
54
Distinct callsigns
1
Country
DE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3D0DDF.

Country allocation

The ICAO 24-bit address 3D0DDF 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
DEDMT - 54 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-31 DEDMT - May 31, 16:20 UTCMay 31, 17:15 UTC55m
2026-05-31 DEDMT QHU → QHU May 31, 15:00 UTCMay 31, 16:00 UTC1h 0m
2026-05-31 DEDMT QHU → QHU May 31, 14:00 UTCMay 31, 14:40 UTC40m
2026-05-30 DEDMT - May 30, 11:30 UTCMay 30, 13:35 UTC2h 5m
2026-05-28 DEDMT - May 28, 17:15 UTCMay 28, 17:30 UTC15m
2026-05-28 DEDMT - May 28, 16:00 UTCMay 28, 17:00 UTC1h 0m
2026-05-28 DEDMT - May 28, 14:10 UTCMay 28, 15:40 UTC1h 30m
2026-05-28 DEDMT - May 28, 13:05 UTCMay 28, 13:45 UTC40m
2026-05-28 DEDMT - May 28, 12:35 UTCMay 28, 12:50 UTC15m
2026-05-28 DEDMT - May 28, 11:20 UTCMay 28, 12:10 UTC50m
2026-05-27 DEDMT - May 27, 11:15 UTCMay 27, 11:55 UTC40m
2026-05-24 DEDMT - May 24, 13:45 UTCMay 24, 13:55 UTC10m
2026-05-24 DEDMT - May 24, 12:20 UTCMay 24, 13:20 UTC1h 0m
2026-05-24 DEDMT - May 24, 11:15 UTCMay 24, 11:55 UTC40m
2026-05-24 DEDMT QHU → PSH May 24, 09:35 UTCMay 24, 10:50 UTC1h 15m
2026-05-23 DEDMT - May 23, 13:05 UTCMay 23, 13:15 UTC10m
2026-05-23 DEDMT - May 23, 10:15 UTCMay 23, 13:00 UTC2h 45m
2026-05-23 DEDMT - May 23, 09:45 UTCMay 23, 09:55 UTC10m
2026-05-22 DEDMT PSH → PSH May 22, 10:30 UTCMay 22, 11:15 UTC45m
2026-05-22 DEDMT - May 22, 09:55 UTCMay 22, 10:10 UTC15m
2026-05-17 DEDMT - May 17, 11:01 UTCMay 17, 11:55 UTC55m
2026-05-17 DEDMT - May 17, 09:20 UTCMay 17, 10:05 UTC45m
2026-05-17 DEDMT QHU → QHU May 17, 07:40 UTCMay 17, 08:50 UTC1h 10m
2026-05-15 DEDMT QHU → QHU May 15, 11:05 UTCMay 15, 12:05 UTC1h 0m
2026-05-14 DEDMT - May 14, 16:35 UTCMay 14, 16:50 UTC15m
2026-05-14 DEDMT - May 14, 15:40 UTCMay 14, 16:20 UTC40m
2026-05-14 DEDMT - May 14, 15:05 UTCMay 14, 15:20 UTC15m
2026-05-10 DEDMT QHU → QHU May 10, 09:10 UTCMay 10, 10:40 UTC1h 30m
2026-05-09 DEDMT PSH → QHU May 9, 14:00 UTCMay 9, 14:20 UTC20m
2026-05-09 DEDMT - May 9, 13:05 UTCMay 9, 13:45 UTC40m
2026-05-09 DEDMT QHU → PSH May 9, 12:30 UTCMay 9, 12:50 UTC20m
2026-05-09 DEDMT QHU → QHU May 9, 11:10 UTCMay 9, 12:00 UTC50m
2026-05-09 DEDMT - May 9, 10:15 UTCMay 9, 10:55 UTC40m
2026-05-08 DEDMT - May 8, 15:30 UTCMay 8, 16:05 UTC35m
2026-05-07 DEDMT PSH → IZE May 7, 11:55 UTCMay 7, 12:25 UTC30m
2026-05-07 DEDMT - May 7, 09:45 UTCMay 7, 11:15 UTC1h 30m
2026-05-07 DEDMT PSH → PSH May 7, 08:30 UTCMay 7, 09:10 UTC40m
2026-05-07 DEDMT - May 7, 08:00 UTCMay 7, 08:15 UTC15m
2026-05-06 DEDMT QHU → QHU May 6, 09:30 UTCMay 6, 10:30 UTC1h 0m
2026-05-03 DEDMT QHU → QHU May 3, 11:45 UTCMay 3, 12:45 UTC1h 0m
2026-05-01 DEDMT - May 1, 10:40 UTCMay 1, 10:55 UTC15m
2026-05-01 DEDMT - May 1, 09:45 UTCMay 1, 10:25 UTC40m
2026-05-01 DEDMT - May 1, 08:30 UTCMay 1, 09:25 UTC55m
2026-05-01 DEDMT - May 1, 07:55 UTCMay 1, 08:10 UTC15m
2026-04-29 DEDMT - Apr 29, 14:50 UTCApr 29, 15:50 UTC1h 0m
2026-04-29 DEDMT - Apr 29, 13:25 UTCApr 29, 14:25 UTC1h 0m
2026-04-28 DEDMT QHU → QHU Apr 28, 14:00 UTCApr 28, 14:55 UTC55m
2026-04-26 DEDMT - Apr 26, 12:10 UTCApr 26, 12:50 UTC40m
2026-04-21 DEDMT - Apr 21, 11:05 UTCApr 21, 11:15 UTC10m
2026-04-21 DEDMT - Apr 21, 08:20 UTCApr 21, 10:50 UTC2h 30m

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

Mode-S 3D0DDF frequently asked

What is Mode-S code 3D0DDF?
3D0DDF is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EDMT.
Where is Mode-S 3D0DDF registered?
Mode-S code 3D0DDF is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D0DDF 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 3D0DDF, octal 17206737, decimal 4,001,247.
What flights does 3D0DDF operate?
Mode-S 3D0DDF has broadcast 1 distinct callsign, including DEDMT.