Apparatus

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sensors Mode-S transponder

3C4594

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C4594
Octal
17042624
Decimal
3,949,972
Country
DE
Tail
D-AALT
Type
B77L
No current signal · last broadcast 4h ago
Flights observed
145
Distinct callsigns
20
Country
DE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 3C4594.

Country allocation

The ICAO 24-bit address 3C4594 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 20 distinct

Callsign Airline Flights Last seen
BOX396 AeroLogic 17 2026-04-18
BOX381 - 12 2026-04-17
BOX584 - 9 2026-05-19
BOX738 - 7 2026-05-28
BOX720 - 7 2026-05-12
BOX707 AeroLogic 6 2026-05-28
BOX515 AeroLogic 6 2026-05-11
BOX585 AeroLogic 5 2026-05-20
BOX397 AeroLogic 5 2026-05-20
BOX733 - 4 2026-05-09
BOX519 AeroLogic 4 2026-05-18
BOX735 - 3 2026-05-27
BOX594 AeroLogic 3 2026-04-21
BOX580 AeroLogic 3 2026-05-10
BOX542 AeroLogic 3 2026-04-28
BOX534 AeroLogic 3 2026-05-18
BOX719 - 2 2026-04-23
BOX714 - 2 2026-05-08
BOX713 - 2 2026-05-13
BOX627 AeroLogic 2 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BOX570 LEJ → LEJ May 30, 04:50 UTCMay 30, 08:05 UTC3h 15m
2026-05-30 BOX191 EMA → LEJ May 30, 00:45 UTCMay 30, 02:06 UTC1h 21m
2026-05-29 BOX192 LEJ → EMA May 29, 18:50 UTCMay 29, 20:20 UTC1h 30m
2026-05-28 BOX707 HKG → LEJ May 28, 23:50 UTCMay 29, 14:10 UTC14h 20m
2026-05-28 BOX707 HKG → LEJ May 28, 22:10 UTCMay 28, 22:25 UTC15m
2026-05-28 BOX738 - May 28, 14:55 UTCMay 28, 16:25 UTC1h 30m
2026-05-28 BOX738 - May 28, 07:45 UTCMay 28, 11:45 UTC4h 0m
2026-05-28 BOX738 - May 28, 02:30 UTCMay 28, 02:45 UTC15m
2026-05-27 BOX738 - May 27, 21:15 UTCMay 28, 00:55 UTC3h 40m
2026-05-27 BOX735 - May 27, 07:25 UTCMay 27, 16:35 UTC9h 10m
2026-05-27 BOX735 - May 27, 00:00 UTCMay 27, 03:09 UTC3h 10m
2026-05-26 BOX735 - May 26, 22:20 UTCMay 26, 22:35 UTC15m
2026-05-26 BOX712 LEJ → HKG May 26, 04:15 UTCMay 26, 20:05 UTC15h 50m
2026-05-25 BOX563 - May 25, 06:50 UTCMay 25, 10:40 UTC3h 50m
2026-05-24 BOX563 - May 24, 11:05 UTCMay 25, 10:40 UTC23h 35m
2026-05-24 BOX562 LEJ → ICN May 24, 09:05 UTCMay 25, 09:00 UTC23h 55m
2026-05-24 BOX562 LEJ → ICN May 24, 08:05 UTCMay 25, 07:00 UTC22h 55m
2026-05-23 BOX711 HKG → LEJ May 23, 17:35 UTCMay 24, 05:20 UTC11h 46m
2026-05-23 BOX524 HKG → CVG May 23, 04:00 UTCMay 23, 15:25 UTC11h 25m
2026-05-22 BOX524 HKG → CVG May 22, 23:25 UTCMay 23, 00:30 UTC1h 5m
2026-05-22 BOX589 HKG → LEJ May 22, 01:30 UTCMay 22, 12:20 UTC10h 50m
2026-05-21 BOX531 SIN → BLR May 21, 20:40 UTCMay 21, 22:40 UTC2h 0m
2026-05-21 BOX530 LEJ → SIN May 21, 05:45 UTCMay 21, 17:20 UTC11h 35m
2026-05-20 BOX397 CVG → LEJ May 20, 18:55 UTCMay 21, 02:25 UTC7h 30m
2026-05-20 BOX585 SZX → LAX May 20, 12:20 UTCMay 20, 15:50 UTC3h 30m
2026-05-19 BOX585 SZX → LAX May 19, 23:55 UTCMay 20, 09:40 UTC9h 46m
2026-05-19 BOX585 SZX → LAX May 19, 21:45 UTCMay 19, 21:55 UTC10m
2026-05-19 BOX584 - May 19, 18:05 UTCMay 19, 18:20 UTC15m
2026-05-19 BOX584 - May 19, 13:30 UTCMay 19, 15:40 UTC2h 10m
2026-05-19 BOX584 - May 19, 10:45 UTCMay 19, 11:00 UTC15m
2026-05-19 BOX584 - May 19, 02:15 UTCMay 19, 09:00 UTC6h 45m
2026-05-18 BOX519 HKG → LEJ May 18, 17:15 UTCMay 18, 21:10 UTC3h 54m
2026-05-18 BOX519 HKG → LEJ May 18, 09:15 UTCMay 18, 09:25 UTC10m
2026-05-18 BOX534 LEJ → SIN May 18, 06:05 UTCMay 18, 06:35 UTC30m
2026-05-18 BOX534 LEJ → SIN May 18, 03:10 UTCMay 18, 03:30 UTC20m
2026-05-17 BOX534 LEJ → SIN May 17, 12:40 UTCMay 18, 00:20 UTC11h 40m
2026-05-17 BOX571 LEJ → LEJ May 17, 05:05 UTCMay 17, 08:55 UTC3h 50m
2026-05-16 BOX571 LEJ → LEJ May 16, 07:51 UTCMay 17, 06:10 UTC22h 20m
2026-05-16 BOX570 LEJ → LEJ May 16, 04:40 UTCMay 16, 08:20 UTC3h 41m
2026-05-15 BOX707 HKG → LEJ May 15, 10:20 UTCMay 15, 14:15 UTC3h 55m
2026-05-15 BOX707 HKG → LEJ May 15, 08:25 UTCMay 15, 08:35 UTC10m
2026-05-14 BOX707 HKG → LEJ May 14, 23:30 UTCMay 15, 03:55 UTC4h 25m
2026-05-14 BOX707 HKG → LEJ May 14, 21:55 UTCMay 14, 22:10 UTC15m
2026-05-14 BOX738 - May 14, 06:00 UTCMay 14, 16:05 UTC10h 5m
2026-05-14 BOX738 - May 14, 02:00 UTCMay 14, 02:20 UTC20m
2026-05-13 BOX738 - May 13, 21:05 UTCMay 14, 00:35 UTC3h 30m
2026-05-13 BOX713 - May 13, 00:10 UTCMay 13, 14:40 UTC14h 30m
2026-05-12 BOX713 - May 12, 22:05 UTCMay 12, 22:20 UTC15m
2026-05-12 BOX720 - May 12, 18:15 UTCMay 12, 18:45 UTC30m
2026-05-12 BOX720 - May 12, 14:20 UTCMay 12, 16:25 UTC2h 5m

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

Mode-S 3C4594 frequently asked

What is Mode-S code 3C4594?
3C4594 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AALT.
Where is Mode-S 3C4594 registered?
Mode-S code 3C4594 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4594 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4594, octal 17042624, decimal 3,949,972.
What flights does 3C4594 operate?
Mode-S 3C4594 has broadcast 20 distinct callsigns, including BOX396, BOX381, BOX584, BOX738, BOX720.