Apparatus

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sensors Mode-S transponder

3FEC3B

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3FEC3B
Octal
17766073
Decimal
4,189,243
Country
DE
Tail
D-MLPS
Type
WT9
No current signal · last broadcast 2d ago
Flights observed
42
Distinct callsigns
1
Country
DE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3FEC3B.

Country allocation

The ICAO 24-bit address 3FEC3B 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
DMZDR - 41 2026-07-23

Recent flights last 42

DateFlightRouteTakeoffLandingDuration
2026-07-23 DMZDR - Jul 23, 18:45 UTCJul 23, 18:55 UTC10m
2026-07-21 DMZDR - Jul 21, 16:20 UTCJul 21, 17:20 UTC1h 0m
2026-07-17 DMZDR - Jul 17, 07:20 UTCJul 17, 08:40 UTC1h 20m
2026-07-16 DMZDR - Jul 16, 17:49 UTCJul 16, 18:34 UTC45m
2026-07-16 DMZDR - Jul 16, 16:35 UTCJul 16, 16:49 UTC15m
2026-07-12 DMZDR - Jul 12, 18:45 UTCJul 12, 19:01 UTC15m
2026-07-12 DMZDR - Jul 12, 09:20 UTCJul 12, 09:50 UTC30m
2026-07-11 DMZDR - Jul 11, 17:20 UTCJul 11, 17:40 UTC20m
2026-07-11 DMZDR - Jul 11, 09:15 UTCJul 11, 09:35 UTC20m
2026-07-04 DMZDR - Jul 4, 13:05 UTCJul 4, 13:50 UTC45m
2026-07-04 DMZDR - Jul 4, 10:55 UTCJul 4, 12:35 UTC1h 40m
2026-07-04 DMZDR - Jul 4, 08:00 UTCJul 4, 10:05 UTC2h 5m
2026-07-03 DMZDR - Jul 3, 13:25 UTCJul 3, 19:40 UTC6h 15m
2026-07-03 DMZDR - Jul 3, 11:40 UTCJul 3, 11:55 UTC15m
2026-07-03 DMZDR - Jul 3, 10:10 UTCJul 3, 11:05 UTC55m
2026-07-03 DMZDR - Jul 3, 08:55 UTCJul 3, 09:20 UTC25m
2026-07-02 DMZDR - Jul 2, 14:40 UTCJul 2, 16:45 UTC2h 5m
2026-07-02 DMZDR - Jul 2, 07:50 UTCJul 2, 11:10 UTC3h 20m
2026-07-02 DMZDR - Jul 2, 07:10 UTCJul 2, 07:20 UTC10m
2026-07-01 DMZDR - Jul 1, 15:10 UTCJul 1, 18:50 UTC3h 40m
2026-07-01 DMZDR - Jul 1, 07:50 UTCJul 1, 11:20 UTC3h 30m
2026-06-30 DMZDR - Jun 30, 18:10 UTCJun 30, 18:20 UTC10m
2026-06-30 DMZDR - Jun 30, 14:00 UTCJun 30, 17:40 UTC3h 40m
2026-06-30 DMZDR - Jun 30, 09:10 UTCJun 30, 13:30 UTC4h 20m
2026-06-30 DMZDR - Jun 30, 07:40 UTCJun 30, 08:40 UTC1h 0m
2026-06-29 DMZDR - Jun 29, 13:49 UTCJun 29, 14:50 UTC1h 0m
2026-06-29 DMZDR - Jun 29, 11:14 UTCJun 29, 11:25 UTC10m
2026-06-28 DMZDR - Jun 28, 14:45 UTCJun 28, 15:49 UTC1h 5m
2026-06-27 DMZDR - Jun 27, 17:55 UTCJun 27, 18:24 UTC30m
2026-06-19 DMZDR - Jun 19, 15:59 UTCJun 19, 16:39 UTC40m
2026-06-18 DMZDR - Jun 18, 16:40 UTCJun 18, 16:50 UTC10m
2026-06-18 DMZDR - Jun 18, 11:40 UTCJun 18, 13:05 UTC1h 25m
2026-06-18 DMZDR - Jun 18, 09:10 UTCJun 18, 10:20 UTC1h 10m
2026-06-14 DMZDR - Jun 14, 15:30 UTCJun 14, 15:55 UTC25m
2026-06-14 DMZDR - Jun 14, 14:35 UTCJun 14, 14:45 UTC10m
2026-06-13 DMZDR - Jun 13, 07:55 UTCJun 13, 09:10 UTC1h 15m
2026-06-11 DMZDR - Jun 11, 14:50 UTCJun 11, 15:20 UTC30m
2026-06-11 - - Jun 11, 13:15 UTCJun 11, 13:25 UTC10m
2026-06-11 DMZDR - Jun 11, 11:55 UTCJun 11, 12:05 UTC10m
2026-06-03 DMZDR - Jun 3, 15:50 UTCJun 3, 17:00 UTC1h 10m
2026-06-03 DMZDR - Jun 3, 12:55 UTCJun 3, 13:50 UTC55m
2026-05-27 DMZDR - May 27, 13:05 UTCMay 27, 15:40 UTC2h 35m

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

Mode-S 3FEC3B frequently asked

What is Mode-S code 3FEC3B?
3FEC3B is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-MLPS.
Where is Mode-S 3FEC3B registered?
Mode-S code 3FEC3B is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3FEC3B 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 3FEC3B, octal 17766073, decimal 4,189,243.
What flights does 3FEC3B operate?
Mode-S 3FEC3B has broadcast 1 distinct callsign, including DMZDR.