Apparatus

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sensors Mode-S transponder

3C6D43

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AKJC · EMBRAER ERJ-190-100

Hex
3C6D43
Octal
17066503
Decimal
3,960,131
Country
DE
Tail
D-AKJC
Type
E190
No current signal · last broadcast 18d ago
Flights observed
572
Distinct callsigns
20
Country
DE
Last broadcast
18d ago

Last known position

Most recent position reported by Mode-S 3C6D43.

Country allocation

The ICAO 24-bit address 3C6D43 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
KLM76K - 46 2026-06-20
KLM71F - 46 2026-06-20
KLM59F - 46 2026-06-19
KLM1844 - 46 2026-06-20
KLM911 - 43 2026-06-20
KLM90U - 42 2026-06-20
KLM46V - 28 2026-06-22
KLM1821 KLM Royal Dutch Airlines 28 2026-06-22
KLM66C - 25 2026-06-16
KLM991 KLM Royal Dutch Airlines 23 2026-06-16
KLM32F KLM Royal Dutch Airlines 17 2026-05-23
KLM1282 KLM Royal Dutch Airlines 16 2026-05-23
KLM91K KLM Royal Dutch Airlines 15 2026-05-22
KLM56H KLM Royal Dutch Airlines 15 2026-05-22
KLM39R - 15 2026-05-23
KLM47T KLM Royal Dutch Airlines 12 2026-06-08
KLM44K KLM Royal Dutch Airlines 12 2026-06-08
KLM17V KLM Royal Dutch Airlines 12 2026-05-22
KLM88A - 11 2026-06-22
KLM68C - 11 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 GER2573 - Jun 26, 08:20 UTCJun 26, 09:14 UTC55m
2026-06-22 KLM46V FRA → AMS Jun 22, 17:10 UTCJun 22, 17:55 UTC45m
2026-06-22 KLM1821 AMS → BER Jun 22, 15:14 UTCJun 22, 15:54 UTC40m
2026-06-22 KLM68C - Jun 22, 13:05 UTCJun 22, 13:39 UTC35m
2026-06-22 KLM1801 - Jun 22, 11:44 UTCJun 22, 12:15 UTC30m
2026-06-22 KLM1174 - Jun 22, 08:25 UTCJun 22, 09:40 UTC1h 15m
2026-06-22 KLM33B - Jun 22, 06:35 UTCJun 22, 07:40 UTC1h 5m
2026-06-22 KLM88A - Jun 22, 04:40 UTCJun 22, 05:04 UTC25m
2026-06-21 KLM1805 AMS → DUS Jun 21, 20:14 UTCJun 21, 20:45 UTC30m
2026-06-21 KLM24P - Jun 21, 17:10 UTCJun 21, 18:35 UTC1h 25m
2026-06-21 KLM1307 AMS → TLS Jun 21, 14:44 UTCJun 21, 16:14 UTC1h 30m
2026-06-21 KLM68C - Jun 21, 12:55 UTCJun 21, 13:24 UTC30m
2026-06-21 KLM1801 - Jun 21, 11:24 UTCJun 21, 11:55 UTC30m
2026-06-21 KLM1174 - Jun 21, 08:44 UTCJun 21, 09:59 UTC1h 15m
2026-06-21 KLM33B - Jun 21, 06:40 UTCJun 21, 07:45 UTC1h 5m
2026-06-21 KLM88A DUS → AMS Jun 21, 04:44 UTCJun 21, 05:20 UTC35m
2026-06-20 KLM1805 AMS → DUS Jun 20, 19:55 UTCJun 20, 20:25 UTC30m
2026-06-20 KLM24P - Jun 20, 16:49 UTCJun 20, 18:14 UTC1h 25m
2026-06-20 KLM1307 AMS → TLS Jun 20, 14:39 UTCJun 20, 15:49 UTC1h 10m
2026-06-20 KLM1844 NUE → AMS Jun 20, 12:34 UTCJun 20, 13:34 UTC1h 0m
2026-06-20 KLM71F - Jun 20, 10:44 UTCJun 20, 11:34 UTC50m
2026-06-20 KLM90U - Jun 20, 08:09 UTCJun 20, 09:14 UTC1h 5m
2026-06-20 KLM911 - Jun 20, 06:24 UTCJun 20, 07:29 UTC1h 5m
2026-06-20 KLM76K - Jun 20, 04:09 UTCJun 20, 04:44 UTC35m
2026-06-19 KLM59F AMS → NUE Jun 19, 19:59 UTCJun 19, 20:55 UTC55m
2026-06-19 KLM46V FRA → AMS Jun 19, 17:24 UTCJun 19, 18:09 UTC45m
2026-06-19 KLM1821 AMS → BER Jun 19, 15:19 UTCJun 19, 15:59 UTC40m
2026-06-19 KLM1844 NUE → AMS Jun 19, 12:34 UTCJun 19, 13:29 UTC55m
2026-06-19 KLM71F AMS → NUE Jun 19, 10:44 UTCJun 19, 11:34 UTC50m
2026-06-19 KLM90U ABZ → AMS Jun 19, 08:20 UTCJun 19, 09:30 UTC1h 10m
2026-06-19 KLM911 - Jun 19, 06:20 UTCJun 19, 07:29 UTC1h 10m
2026-06-19 KLM76K NUE → AMS Jun 19, 04:19 UTCJun 19, 05:14 UTC55m
2026-06-18 KLM59F AMS → NUE Jun 18, 19:50 UTCJun 18, 20:40 UTC50m
2026-06-18 KLM46V - Jun 18, 17:10 UTCJun 18, 18:00 UTC50m
2026-06-18 KLM1821 AMS → BER Jun 18, 15:30 UTCJun 18, 16:10 UTC40m
2026-06-18 KLM1844 NUE → AMS Jun 18, 13:20 UTCJun 18, 14:15 UTC55m
2026-06-18 KLM71F - Jun 18, 10:55 UTCJun 18, 11:50 UTC55m
2026-06-18 KLM90U - Jun 18, 08:10 UTCJun 18, 09:20 UTC1h 10m
2026-06-18 KLM911 - Jun 18, 06:15 UTCJun 18, 07:30 UTC1h 15m
2026-06-18 KLM76K NUE → AMS Jun 18, 04:15 UTCJun 18, 05:15 UTC1h 0m
2026-06-17 KLM59F AMS → NUE Jun 17, 19:40 UTCJun 17, 20:35 UTC55m
2026-06-17 KLM46V FRA → AMS Jun 17, 17:05 UTCJun 17, 17:55 UTC50m
2026-06-17 KLM1821 AMS → BER Jun 17, 15:15 UTCJun 17, 16:00 UTC45m
2026-06-17 KLM1844 NUE → AMS Jun 17, 12:30 UTCJun 17, 13:30 UTC1h 0m
2026-06-17 KLM71F AMS → NUE Jun 17, 10:45 UTCJun 17, 11:35 UTC50m
2026-06-17 KLM90U ABZ → AMS Jun 17, 08:20 UTCJun 17, 09:35 UTC1h 15m
2026-06-17 KLM911 - Jun 17, 06:15 UTCJun 17, 07:30 UTC1h 15m
2026-06-17 KLM76K NUE → AMS Jun 17, 04:05 UTCJun 17, 05:10 UTC1h 5m
2026-06-16 KLM59F - Jun 16, 20:00 UTCJun 16, 20:50 UTC50m
2026-06-16 KLM66C LCY → AMS Jun 16, 17:10 UTCJun 16, 17:55 UTC45m

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

Mode-S 3C6D43 frequently asked

What is Mode-S code 3C6D43?
3C6D43 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AKJC.
Where is Mode-S 3C6D43 registered?
Mode-S code 3C6D43 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6D43 broadcasting right now?
No active broadcast right now. Last signal was 18d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6D43, octal 17066503, decimal 3,960,131.
What flights does 3C6D43 operate?
Mode-S 3C6D43 has broadcast 20 distinct callsigns, including KLM76K, KLM71F, KLM59F, KLM1844, KLM911.