Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3E6946

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-KFBI

Hex
3E6946
Octal
17464506
Decimal
4,090,182
Country
DE
Tail
D-KFBI
Type
GLID
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
1
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3E6946.

Country allocation

The ICAO 24-bit address 3E6946 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
DKFBI - 5 2026-04-17

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-17 DKFBI - Apr 17, 14:35 UTCApr 17, 14:50 UTC15m
2026-04-17 DKFBI - Apr 17, 09:20 UTCApr 17, 09:55 UTC35m
2026-04-16 DKFBI - Apr 16, 16:20 UTCApr 16, 16:55 UTC35m
2026-04-16 DKFBI - Apr 16, 14:35 UTCApr 16, 14:45 UTC10m
2026-04-16 DKFBI - Apr 16, 13:15 UTCApr 16, 13:30 UTC15m

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

Mode-S 3E6946 frequently asked

What is Mode-S code 3E6946?
3E6946 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-KFBI.
Where is Mode-S 3E6946 registered?
Mode-S code 3E6946 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E6946 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E6946, octal 17464506, decimal 4,090,182.
What flights does 3E6946 operate?
Mode-S 3E6946 has broadcast 1 distinct callsign, including DKFBI.