Apparatus

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sensors Mode-S transponder

3FFA8A

ICAO 24-bit transponder address · allocated to Germany

Hex
3FFA8A
Octal
17775212
Decimal
4,192,906
Country
DE
No current signal · last broadcast 19h ago
Flights observed
87
Distinct callsigns
1
Country
DE
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 3FFA8A.

Country allocation

The ICAO 24-bit address 3FFA8A 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
DMSYF - 87 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DMSYF - May 29, 13:20 UTCMay 29, 13:25 UTC5m
2026-05-28 DMSYF - May 28, 16:35 UTCMay 28, 18:00 UTC1h 25m
2026-05-28 DMSYF - May 28, 12:00 UTCMay 28, 12:25 UTC25m
2026-05-25 DMSYF - May 25, 09:25 UTCMay 25, 10:30 UTC1h 5m
2026-05-24 DMSYF - May 24, 15:05 UTCMay 24, 15:55 UTC50m
2026-05-24 DMSYF - May 24, 14:00 UTCMay 24, 14:30 UTC30m
2026-05-23 DMSYF - May 23, 11:25 UTCMay 23, 12:45 UTC1h 20m
2026-05-23 DMSYF - May 23, 09:15 UTCMay 23, 10:20 UTC1h 5m
2026-05-21 DMSYF - May 21, 14:45 UTCMay 21, 15:45 UTC1h 0m
2026-05-21 DMSYF - May 21, 11:00 UTCMay 21, 11:30 UTC30m
2026-05-21 DMSYF - May 21, 10:10 UTCMay 21, 10:20 UTC10m
2026-05-19 DMSYF - May 19, 12:45 UTCMay 19, 14:15 UTC1h 30m
2026-05-18 DMSYF - May 18, 08:25 UTCMay 18, 08:45 UTC20m
2026-05-17 DMSYF - May 17, 15:50 UTCMay 17, 16:01 UTC10m
2026-05-16 DMSYF - May 16, 16:45 UTCMay 16, 17:01 UTC15m
2026-05-16 DMSYF - May 16, 14:05 UTCMay 16, 14:31 UTC25m
2026-05-13 DMSYF - May 13, 15:35 UTCMay 13, 15:45 UTC10m
2026-05-13 DMSYF - May 13, 13:00 UTCMay 13, 13:20 UTC20m
2026-05-12 DMSYF - May 12, 12:10 UTCMay 12, 12:45 UTC35m
2026-05-12 DMSYF - May 12, 08:55 UTCMay 12, 09:10 UTC15m
2026-05-12 DMSYF - May 12, 08:00 UTCMay 12, 08:20 UTC20m
2026-05-12 DMSYF - May 12, 05:50 UTCMay 12, 06:20 UTC30m
2026-05-10 DMSYF - May 10, 15:49 UTCMay 10, 16:00 UTC10m
2026-05-10 DMSYF - May 10, 13:40 UTCMay 10, 14:09 UTC30m
2026-05-10 DMSYF - May 10, 09:20 UTCMay 10, 10:19 UTC1h 0m
2026-05-09 DMSYF - May 9, 11:20 UTCMay 9, 12:10 UTC50m
2026-05-08 DMSYF - May 8, 15:35 UTCMay 8, 16:40 UTC1h 5m
2026-05-08 DMSYF - May 8, 14:05 UTCMay 8, 14:30 UTC25m
2026-05-03 DMSYF - May 3, 16:50 UTCMay 3, 17:40 UTC50m
2026-05-03 DMSYF - May 3, 14:20 UTCMay 3, 15:50 UTC1h 30m
2026-05-03 DMSYF - May 3, 13:10 UTCMay 3, 13:35 UTC25m
2026-05-03 DMSYF - May 3, 11:30 UTCMay 3, 12:40 UTC1h 10m
2026-05-03 DMSYF - May 3, 09:45 UTCMay 3, 10:35 UTC50m
2026-05-02 DMSYF - May 2, 14:50 UTCMay 2, 15:50 UTC1h 0m
2026-05-02 DMSYF - May 2, 13:20 UTCMay 2, 14:05 UTC45m
2026-05-02 DMSYF - May 2, 11:35 UTCMay 2, 12:00 UTC25m
2026-05-02 DMSYF - May 2, 10:00 UTCMay 2, 10:35 UTC35m
2026-05-02 DMSYF - May 2, 09:40 UTCMay 2, 09:50 UTC10m
2026-05-01 DMSYF - May 1, 14:15 UTCMay 1, 14:40 UTC25m
2026-05-01 DMSYF - May 1, 12:55 UTCMay 1, 13:25 UTC30m
2026-05-01 DMSYF - May 1, 11:05 UTCMay 1, 11:35 UTC30m
2026-05-01 DMSYF - May 1, 08:25 UTCMay 1, 08:55 UTC30m
2026-04-30 DMSYF - Apr 30, 16:35 UTCApr 30, 16:50 UTC15m
2026-04-30 DMSYF - Apr 30, 15:40 UTCApr 30, 16:05 UTC25m
2026-04-30 DMSYF - Apr 30, 14:25 UTCApr 30, 14:50 UTC25m
2026-04-29 DMSYF - Apr 29, 17:55 UTCApr 29, 18:10 UTC15m
2026-04-29 DMSYF - Apr 29, 16:50 UTCApr 29, 17:15 UTC25m
2026-04-29 DMSYF - Apr 29, 15:35 UTCApr 29, 16:20 UTC45m
2026-04-28 DMSYF - Apr 28, 16:55 UTCApr 28, 17:20 UTC25m
2026-04-28 DMSYF - Apr 28, 15:15 UTCApr 28, 15:55 UTC40m

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.

Mode-S 3FFA8A frequently asked

What is Mode-S code 3FFA8A?
3FFA8A is an ICAO 24-bit transponder address. Allocated to Germany.
Where is Mode-S 3FFA8A registered?
Mode-S code 3FFA8A is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3FFA8A broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3FFA8A, octal 17775212, decimal 4,192,906.
What flights does 3FFA8A operate?
Mode-S 3FFA8A has broadcast 1 distinct callsign, including DMSYF.