Apparatus

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sensors Mode-S transponder

3D17AD

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EHFH · ROBIN DR-400

Hex
3D17AD
Octal
17213655
Decimal
4,003,757
Country
DE
Tail
D-EHFH
Type
DR40
No current signal · last broadcast 2d ago
Flights observed
61
Distinct callsigns
1
Country
DE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3D17AD.

Country allocation

The ICAO 24-bit address 3D17AD 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
DEHFH - 61 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 DEHFH - Jul 15, 15:10 UTCJul 15, 17:45 UTC2h 35m
2026-07-15 DEHFH - Jul 15, 09:30 UTCJul 15, 09:55 UTC25m
2026-07-15 DEHFH - Jul 15, 07:25 UTCJul 15, 08:45 UTC1h 20m
2026-07-14 DEHFH - Jul 14, 09:55 UTCJul 14, 10:05 UTC10m
2026-07-12 DEHFH - Jul 12, 15:25 UTCJul 12, 15:50 UTC25m
2026-07-12 DEHFH - Jul 12, 09:55 UTCJul 12, 11:25 UTC1h 30m
2026-07-12 DEHFH - Jul 12, 07:40 UTCJul 12, 09:00 UTC1h 20m
2026-07-11 DEHFH - Jul 11, 15:20 UTCJul 11, 16:00 UTC40m
2026-07-11 DEHFH - Jul 11, 12:50 UTCJul 11, 13:55 UTC1h 5m
2026-07-11 DEHFH - Jul 11, 10:30 UTCJul 11, 11:25 UTC55m
2026-07-11 DEHFH - Jul 11, 08:10 UTCJul 11, 08:40 UTC30m
2026-07-10 DEHFH - Jul 10, 10:35 UTCJul 10, 10:55 UTC20m
2026-07-09 DEHFH - Jul 9, 12:35 UTCJul 9, 13:35 UTC1h 0m
2026-07-08 DEHFH - Jul 8, 14:15 UTCJul 8, 14:30 UTC15m
2026-07-04 DEHFH - Jul 4, 18:40 UTCJul 4, 19:05 UTC25m
2026-06-27 DEHFH - Jun 27, 12:39 UTCJun 27, 12:55 UTC15m
2026-06-26 DEHFH - Jun 26, 17:19 UTCJun 26, 18:24 UTC1h 5m
2026-06-26 DEHFH - Jun 26, 15:34 UTCJun 26, 16:44 UTC1h 10m
2026-06-26 DEHFH - Jun 26, 12:05 UTCJun 26, 12:19 UTC15m
2026-06-23 DEHFH - Jun 23, 08:20 UTCJun 23, 09:40 UTC1h 20m
2026-06-22 DEHFH - Jun 22, 13:49 UTCJun 22, 15:14 UTC1h 25m
2026-06-20 DEHFH - Jun 20, 15:49 UTCJun 20, 19:04 UTC3h 15m
2026-06-20 DEHFH - Jun 20, 14:05 UTCJun 20, 14:29 UTC25m
2026-06-19 DEHFH - Jun 19, 19:09 UTCJun 19, 19:25 UTC15m
2026-06-19 DEHFH - Jun 19, 18:14 UTCJun 19, 18:39 UTC25m
2026-06-19 DEHFH - Jun 19, 13:34 UTCJun 19, 14:09 UTC35m
2026-06-19 DEHFH - Jun 19, 12:14 UTCJun 19, 12:49 UTC35m
2026-06-06 DEHFH - Jun 6, 13:09 UTCJun 6, 14:20 UTC1h 10m
2026-05-25 DEHFH - May 25, 14:55 UTCMay 25, 15:15 UTC20m
2026-05-25 DEHFH - May 25, 13:45 UTCMay 25, 14:05 UTC20m
2026-05-24 DEHFH - May 24, 18:40 UTCMay 24, 18:55 UTC15m
2026-05-17 DEHFH - May 17, 07:40 UTCMay 17, 07:55 UTC15m
2026-05-15 DEHFH - May 15, 12:40 UTCMay 15, 12:55 UTC15m
2026-05-15 DEHFH - May 15, 11:50 UTCMay 15, 12:00 UTC10m
2026-05-15 DEHFH - May 15, 09:40 UTCMay 15, 09:50 UTC10m
2026-05-13 DEHFH - May 13, 09:00 UTCMay 13, 09:30 UTC30m
2026-05-10 DEHFH - May 10, 14:14 UTCMay 10, 14:30 UTC15m
2026-05-10 DEHFH - May 10, 07:25 UTCMay 10, 07:55 UTC30m
2026-05-09 DEHFH - May 9, 16:30 UTCMay 9, 17:20 UTC50m
2026-05-09 DEHFH - May 9, 14:45 UTCMay 9, 15:55 UTC1h 10m
2026-05-09 DEHFH - May 9, 09:25 UTCMay 9, 10:00 UTC35m
2026-05-09 DEHFH - May 9, 08:20 UTCMay 9, 08:50 UTC30m
2026-05-08 DEHFH - May 8, 17:55 UTCMay 8, 18:10 UTC15m
2026-05-03 DEHFH - May 3, 10:40 UTCMay 3, 11:10 UTC30m
2026-05-03 DEHFH - May 3, 08:20 UTCMay 3, 09:30 UTC1h 10m
2026-05-02 DEHFH - May 2, 12:55 UTCMay 2, 13:05 UTC10m
2026-05-02 DEHFH - May 2, 10:50 UTCMay 2, 11:00 UTC10m
2026-05-01 DEHFH - May 1, 16:00 UTCMay 1, 16:55 UTC55m
2026-05-01 DEHFH - May 1, 10:00 UTCMay 1, 10:15 UTC15m
2026-04-26 DEHFH - Apr 26, 11:35 UTCApr 26, 12:45 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-EHFH page for operator, model, and routing details .

Mode-S 3D17AD frequently asked

What is Mode-S code 3D17AD?
3D17AD is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EHFH.
Where is Mode-S 3D17AD registered?
Mode-S code 3D17AD is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D17AD 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 3D17AD, octal 17213655, decimal 4,003,757.
What flights does 3D17AD operate?
Mode-S 3D17AD has broadcast 1 distinct callsign, including DEHFH.