Apparatus

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sensors Mode-S transponder

3F46DB

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to 54+27 · AIRBUS A-400M

Hex
3F46DB
Octal
17643333
Decimal
4,146,907
Country
DE
Tail
54+27
Type
A400
No current signal · last broadcast Apr 22, 23:30 UTC
Flights observed
23
Distinct callsigns
7
Country
DE
Last broadcast
Apr 22, 23:30 UTC

Last known position

Most recent position reported by Mode-S 3F46DB.

Country allocation

The ICAO 24-bit address 3F46DB 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 7 distinct

Callsign Airline Flights Last seen
GAF111 - 6 2026-04-22
GAF116 - 4 2026-04-15
ATLAS71 - 3 2026-04-16
ATLAS22 - 3 2026-04-14
ARCTS41 - 3 2026-04-16
LIFTR41 - 2 2026-04-14
ARCTS21 - 2 2026-04-17

Recent flights last 23

DateFlightRouteTakeoffLandingDuration
2026-04-22 GAF111 - Apr 22, 21:40 UTCApr 22, 23:30 UTC1h 50m
2026-04-21 GAF111 - Apr 21, 09:55 UTCApr 21, 13:35 UTC3h 40m
2026-04-20 GAF111 - Apr 20, 15:00 UTCApr 20, 15:50 UTC50m
2026-04-20 GAF111 - Apr 20, 09:45 UTCApr 20, 10:00 UTC15m
2026-04-20 GAF111 - Apr 20, 07:30 UTCApr 20, 08:20 UTC50m
2026-04-19 GAF111 - Apr 19, 10:05 UTCApr 19, 14:20 UTC4h 15m
2026-04-17 ARCTS21 - Apr 17, 09:35 UTCApr 17, 10:50 UTC1h 15m
2026-04-17 ARCTS21 - Apr 17, 07:55 UTCApr 17, 09:15 UTC1h 20m
2026-04-16 ATLAS71 - Apr 16, 17:15 UTCApr 16, 17:35 UTC20m
2026-04-16 ATLAS71 - Apr 16, 16:50 UTCApr 16, 17:10 UTC20m
2026-04-16 ATLAS71 - Apr 16, 15:35 UTCApr 16, 16:15 UTC40m
2026-04-16 ARCTS41 - Apr 16, 13:25 UTCApr 16, 14:05 UTC40m
2026-04-16 ARCTS41 - Apr 16, 11:09 UTCApr 16, 13:05 UTC1h 55m
2026-04-16 ARCTS41 - Apr 16, 10:05 UTCApr 16, 11:04 UTC1h 0m
2026-04-15 GAF116 - Apr 15, 15:05 UTCApr 15, 15:45 UTC40m
2026-04-15 GAF116 - Apr 15, 14:10 UTCApr 15, 14:55 UTC44m
2026-04-15 GAF116 - Apr 15, 13:01 UTCApr 15, 13:25 UTC25m
2026-04-15 GAF116 - Apr 15, 12:40 UTCApr 15, 12:55 UTC15m
2026-04-14 ATLAS22 - Apr 14, 15:10 UTCApr 14, 15:25 UTC15m
2026-04-14 ATLAS22 - Apr 14, 12:50 UTCApr 14, 14:45 UTC1h 55m
2026-04-14 ATLAS22 - Apr 14, 12:05 UTCApr 14, 12:45 UTC40m
2026-04-14 LIFTR41 - Apr 14, 09:10 UTCApr 14, 09:30 UTC20m
2026-04-14 LIFTR41 - Apr 14, 07:30 UTCApr 14, 09:05 UTC1h 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 54+27 page for operator, model, and routing details .

Mode-S 3F46DB frequently asked

What is Mode-S code 3F46DB?
3F46DB is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to 54+27.
Where is Mode-S 3F46DB registered?
Mode-S code 3F46DB is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3F46DB broadcasting right now?
No active broadcast right now. Last signal was Apr 22, 23:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3F46DB, octal 17643333, decimal 4,146,907.
What flights does 3F46DB operate?
Mode-S 3F46DB has broadcast 7 distinct callsigns, including GAF111, GAF116, ATLAS71, ATLAS22, ARCTS41.