Apparatus

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sensors Mode-S transponder

3C4592

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AALR · BOEING 777-200LR

Hex
3C4592
Octal
17042622
Decimal
3,949,970
Country
DE
Tail
D-AALR
Type
B77L
Broadcasting now · callsign BOX570 · 31,000 ft
Flights observed
3
Distinct callsigns
1
Country
DE
Last broadcast
1d ago

Current position

3C4592 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C4592 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
BOX565 AeroLogic 3 2026-04-13

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-13 BOX565 ICN → ICN Apr 13, 08:20 UTCApr 13, 09:20 UTC1h 0m
2026-04-13 BOX565 ICN → ICN Apr 13, 07:55 UTCApr 13, 09:20 UTC1h 25m
2026-04-13 BOX565 ICN → ICN Apr 13, 05:20 UTCApr 13, 08:15 UTC2h 55m

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

Mode-S 3C4592 frequently asked

What is Mode-S code 3C4592?
3C4592 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AALR.
Where is Mode-S 3C4592 registered?
Mode-S code 3C4592 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4592 broadcasting right now?
Yes. Mode-S 3C4592 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4592, octal 17042622, decimal 3,949,970.
What flights does 3C4592 operate?
Mode-S 3C4592 has broadcast 1 distinct callsign, including BOX565.