Apparatus

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sensors Mode-S transponder

3FF15A

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-MDQI · AEROSPOOL WT-9 Dynamic

Hex
3FF15A
Octal
17770532
Decimal
4,190,554
Country
DE
Tail
D-MDQI
Type
WT9
No current signal · last broadcast 5d ago
Flights observed
87
Distinct callsigns
1
Country
DE
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 3FF15A.

Country allocation

The ICAO 24-bit address 3FF15A 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
DMDQI - 87 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 DMDQI - Jul 12, 13:40 UTCJul 12, 13:50 UTC10m
2026-07-12 DMDQI - Jul 12, 10:55 UTCJul 12, 13:10 UTC2h 15m
2026-07-12 DMDQI - Jul 12, 07:31 UTCJul 12, 10:25 UTC2h 55m
2026-07-11 DMDQI - Jul 11, 07:50 UTCJul 11, 14:45 UTC6h 55m
2026-07-04 DMDQI - Jul 4, 19:10 UTCJul 4, 19:40 UTC30m
2026-07-04 DMDQI - Jul 4, 14:20 UTCJul 4, 15:45 UTC1h 25m
2026-07-04 DMDQI - Jul 4, 07:50 UTCJul 4, 13:45 UTC5h 55m
2026-06-21 DMDQI - Jun 21, 08:35 UTCJun 21, 10:49 UTC2h 15m
2026-06-20 DMDQI - Jun 20, 14:24 UTCJun 20, 15:34 UTC1h 10m
2026-06-20 DMDQI - Jun 20, 11:40 UTCJun 20, 12:24 UTC45m
2026-06-20 DMDQI - Jun 20, 10:29 UTCJun 20, 11:05 UTC35m
2026-06-20 DMDQI - Jun 20, 08:14 UTCJun 20, 09:29 UTC1h 15m
2026-06-19 DMDQI - Jun 19, 10:50 UTCJun 19, 11:14 UTC25m
2026-06-14 DMDQI - Jun 14, 08:20 UTCJun 14, 15:35 UTC7h 15m
2026-06-14 DMDQI - Jun 14, 07:05 UTCJun 14, 07:35 UTC30m
2026-06-07 DMDQI - Jun 7, 14:25 UTCJun 7, 15:10 UTC45m
2026-06-07 DMDQI - Jun 7, 12:35 UTCJun 7, 13:25 UTC50m
2026-06-07 DMDQI - Jun 7, 09:55 UTCJun 7, 10:45 UTC50m
2026-06-07 DMDQI - Jun 7, 08:10 UTCJun 7, 09:00 UTC50m
2026-06-06 DMDQI - Jun 6, 10:14 UTCJun 6, 14:14 UTC4h 0m
2026-06-06 DMDQI - Jun 6, 07:55 UTCJun 6, 09:39 UTC1h 45m
2026-06-05 DMDQI - Jun 5, 12:00 UTCJun 5, 14:25 UTC2h 25m
2026-06-05 DMDQI - Jun 5, 11:05 UTCJun 5, 11:30 UTC25m
2026-06-05 DMDQI - Jun 5, 10:20 UTCJun 5, 10:30 UTC10m
2026-06-04 DMDQI - Jun 4, 08:20 UTCJun 4, 11:25 UTC3h 5m
2026-06-03 DMDQI - Jun 3, 10:45 UTCJun 3, 13:55 UTC3h 10m
2026-06-02 DMDQI - Jun 2, 11:10 UTCJun 2, 12:20 UTC1h 10m
2026-06-02 DMDQI - Jun 2, 08:00 UTCJun 2, 10:05 UTC2h 5m
2026-06-01 DMDQI - Jun 1, 14:20 UTCJun 1, 15:40 UTC1h 20m
2026-06-01 DMDQI - Jun 1, 11:55 UTCJun 1, 14:05 UTC2h 10m
2026-05-31 DMDQI - May 31, 08:35 UTCMay 31, 09:35 UTC1h 0m
2026-05-30 DMDQI - May 30, 11:10 UTCMay 30, 11:40 UTC30m
2026-05-30 DMDQI - May 30, 09:10 UTCMay 30, 10:55 UTC1h 45m
2026-05-29 DMDQI - May 29, 10:55 UTCMay 29, 12:05 UTC1h 10m
2026-05-29 DMDQI - May 29, 08:05 UTCMay 29, 09:20 UTC1h 15m
2026-05-28 DMDQI - May 28, 12:30 UTCMay 28, 13:35 UTC1h 5m
2026-05-28 DMDQI - May 28, 07:25 UTCMay 28, 11:30 UTC4h 5m
2026-05-28 DMDQI - May 28, 05:30 UTCMay 28, 05:45 UTC15m
2026-05-28 DMDQI - May 28, 03:00 UTCMay 28, 03:35 UTC35m
2026-05-27 DMDQI - May 27, 14:05 UTCMay 27, 15:25 UTC1h 20m
2026-05-27 DMDQI - May 27, 11:55 UTCMay 27, 12:05 UTC10m
2026-05-27 DMDQI - May 27, 09:45 UTCMay 27, 11:05 UTC1h 20m
2026-05-27 DMDQI - May 27, 07:55 UTCMay 27, 09:15 UTC1h 20m
2026-05-26 DMDQI - May 26, 15:05 UTCMay 26, 15:14 UTC10m
2026-05-26 DMDQI - May 26, 12:54 UTCMay 26, 13:29 UTC35m
2026-05-26 DMDQI - May 26, 10:44 UTCMay 26, 12:10 UTC1h 25m
2026-05-26 DMDQI - May 26, 08:04 UTCMay 26, 10:10 UTC2h 5m
2026-05-25 DMDQI - May 25, 10:40 UTCMay 25, 14:10 UTC3h 30m
2026-05-25 DMDQI - May 25, 07:55 UTCMay 25, 09:40 UTC1h 45m
2026-05-24 DMDQI - May 24, 12:30 UTCMay 24, 13:40 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-MDQI page for operator, model, and routing details .

Mode-S 3FF15A frequently asked

What is Mode-S code 3FF15A?
3FF15A is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-MDQI.
Where is Mode-S 3FF15A registered?
Mode-S code 3FF15A is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3FF15A broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3FF15A, octal 17770532, decimal 4,190,554.
What flights does 3FF15A operate?
Mode-S 3FF15A has broadcast 1 distinct callsign, including DMDQI.