Apparatus

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sensors Mode-S transponder

3FF941

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-MLCV · FLIGHT DESIGN CT

Hex
3FF941
Octal
17774501
Decimal
4,192,577
Country
DE
Tail
D-MLCV
Type
FDCT
No current signal · last broadcast 6h ago
Flights observed
36
Distinct callsigns
1
Country
DE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 3FF941.

Country allocation

The ICAO 24-bit address 3FF941 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
DMLCV - 36 2026-06-13

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-06-13 DMLCV - Jun 13, 10:15 UTCJun 13, 10:40 UTC25m
2026-06-13 DMLCV - Jun 13, 08:50 UTCJun 13, 09:20 UTC30m
2026-06-12 DMLCV - Jun 12, 11:30 UTCJun 12, 11:40 UTC10m
2026-06-07 DMLCV - Jun 7, 13:05 UTCJun 7, 13:20 UTC15m
2026-06-06 DMLCV - Jun 6, 15:25 UTCJun 6, 15:39 UTC15m
2026-06-06 DMLCV - Jun 6, 08:55 UTCJun 6, 10:20 UTC1h 25m
2026-06-01 DMLCV - Jun 1, 09:40 UTCJun 1, 10:25 UTC45m
2026-05-31 DMLCV - May 31, 11:40 UTCMay 31, 11:55 UTC15m
2026-05-31 DMLCV - May 31, 09:55 UTCMay 31, 10:05 UTC10m
2026-05-30 DMLCV - May 30, 14:20 UTCMay 30, 14:45 UTC25m
2026-05-28 DMLCV - May 28, 08:35 UTCMay 28, 09:35 UTC1h 0m
2026-05-23 DMLCV - May 23, 08:00 UTCMay 23, 08:30 UTC30m
2026-05-22 DMLCV - May 22, 12:25 UTCMay 22, 13:00 UTC35m
2026-05-22 DMLCV - May 22, 09:55 UTCMay 22, 10:30 UTC35m
2026-05-17 DMLCV - May 17, 08:30 UTCMay 17, 09:50 UTC1h 20m
2026-05-16 DMLCV - May 16, 15:10 UTCMay 16, 15:25 UTC15m
2026-05-16 DMLCV - May 16, 14:01 UTCMay 16, 14:16 UTC15m
2026-05-15 DMLCV - May 15, 08:10 UTCMay 15, 08:35 UTC25m
2026-05-10 DMLCV - May 10, 14:40 UTCMay 10, 14:59 UTC20m
2026-05-09 DMLCV - May 9, 09:20 UTCMay 9, 10:10 UTC50m
2026-05-09 DMLCV - May 9, 07:45 UTCMay 9, 08:05 UTC20m
2026-05-08 DMLCV - May 8, 12:00 UTCMay 8, 12:39 UTC40m
2026-05-07 DMLCV - May 7, 13:55 UTCMay 7, 14:30 UTC35m
2026-05-04 DMLCV - May 4, 15:00 UTCMay 4, 15:15 UTC15m
2026-05-03 DMLCV - May 3, 11:15 UTCMay 3, 12:50 UTC1h 35m
2026-05-02 DMLCV - May 2, 14:30 UTCMay 2, 14:40 UTC10m
2026-05-02 DMLCV - May 2, 10:30 UTCMay 2, 12:00 UTC1h 30m
2026-05-01 DMLCV - May 1, 11:55 UTCMay 1, 12:25 UTC30m
2026-05-01 DMLCV - May 1, 07:40 UTCMay 1, 07:55 UTC15m
2026-04-30 DMLCV - Apr 30, 14:05 UTCApr 30, 14:30 UTC25m
2026-04-30 DMLCV - Apr 30, 11:10 UTCApr 30, 11:35 UTC25m
2026-04-29 DMLCV - Apr 29, 09:10 UTCApr 29, 10:55 UTC1h 45m
2026-04-21 DMLCV - Apr 21, 10:35 UTCApr 21, 12:10 UTC1h 35m
2026-04-21 DMLCV - Apr 21, 08:30 UTCApr 21, 10:05 UTC1h 35m
2026-04-17 DMLCV - Apr 17, 09:35 UTCApr 17, 09:50 UTC15m
2026-04-13 DMLCV - Apr 13, 11:25 UTCApr 13, 11:35 UTC10m

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

Mode-S 3FF941 frequently asked

What is Mode-S code 3FF941?
3FF941 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-MLCV.
Where is Mode-S 3FF941 registered?
Mode-S code 3FF941 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3FF941 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3FF941, octal 17774501, decimal 4,192,577.
What flights does 3FF941 operate?
Mode-S 3FF941 has broadcast 1 distinct callsign, including DMLCV.