Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
Broadcasting now · callsign KLM59F · 5,125 ft
Flights observed
391
Distinct callsigns
20
Country
DE
Last broadcast
6h ago

Current position

3C6D43 is currently broadcasting. Map zoomed to live position.

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 KLM Royal Dutch Airlines 26 2026-05-30
KLM71F KLM Royal Dutch Airlines 26 2026-05-30
KLM1844 KLM Royal Dutch Airlines 26 2026-05-30
KLM59F KLM Royal Dutch Airlines 25 2026-05-29
KLM911 KLM Royal Dutch Airlines 24 2026-05-30
KLM90U KLM Royal Dutch Airlines 22 2026-05-30
KLM46V KLM Royal Dutch Airlines 20 2026-05-28
KLM1821 KLM Royal Dutch Airlines 20 2026-05-28
KLM66C KLM Royal Dutch Airlines 18 2026-05-25
KLM32F KLM Royal Dutch Airlines 17 2026-05-23
KLM991 KLM Royal Dutch Airlines 16 2026-05-25
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
KLM17V KLM Royal Dutch Airlines 12 2026-05-22
KLM88A KLM Royal Dutch Airlines 9 2026-05-25
KLM68C KLM Royal Dutch Airlines 9 2026-05-25
KLM1805 KLM Royal Dutch Airlines 9 2026-05-24
KLM1801 KLM Royal Dutch Airlines 9 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KLM1844 NUE → AMS May 30, 12:35 UTCMay 30, 13:40 UTC1h 5m
2026-05-30 KLM71F AMS → LIS May 30, 10:35 UTCMay 30, 11:45 UTC1h 10m
2026-05-30 KLM90U ABZ → AMS May 30, 08:10 UTCMay 30, 09:15 UTC1h 5m
2026-05-30 KLM911 AMS → ABZ May 30, 06:20 UTCMay 30, 07:30 UTC1h 10m
2026-05-30 KLM76K VIE → AMS May 30, 04:05 UTCMay 30, 05:10 UTC1h 5m
2026-05-29 KLM59F AMS → NUE May 29, 21:05 UTCMay 29, 22:00 UTC55m
2026-05-29 KLM44K CWL → AMS May 29, 19:00 UTCMay 29, 19:55 UTC55m
2026-05-29 KLM47T AMS → CWL May 29, 17:10 UTCMay 29, 18:10 UTC1h 0m
2026-05-29 KLM1844 NUE → AMS May 29, 12:40 UTCMay 29, 13:40 UTC1h 0m
2026-05-29 KLM71F AMS → LIS May 29, 10:55 UTCMay 29, 11:50 UTC55m
2026-05-29 KLM90U ABZ → AMS May 29, 08:20 UTCMay 29, 09:30 UTC1h 10m
2026-05-29 KLM911 AMS → ABZ May 29, 06:20 UTCMay 29, 07:25 UTC1h 5m
2026-05-29 KLM76K VIE → AMS May 29, 04:10 UTCMay 29, 05:15 UTC1h 5m
2026-05-28 KLM59F AMS → NUE May 28, 19:45 UTCMay 28, 20:40 UTC55m
2026-05-28 KLM46V FRA → AMS May 28, 17:25 UTCMay 28, 18:10 UTC45m
2026-05-28 KLM1821 AMS → BER May 28, 15:25 UTCMay 28, 16:05 UTC40m
2026-05-28 KLM1844 NUE → AMS May 28, 13:10 UTCMay 28, 14:10 UTC1h 0m
2026-05-28 KLM71F AMS → LIS May 28, 11:00 UTCMay 28, 11:50 UTC50m
2026-05-28 KLM90U ABZ → AMS May 28, 08:20 UTCMay 28, 09:30 UTC1h 10m
2026-05-28 KLM911 AMS → ABZ May 28, 06:25 UTCMay 28, 07:35 UTC1h 10m
2026-05-28 KLM76K VIE → AMS May 28, 04:15 UTCMay 28, 05:15 UTC1h 0m
2026-05-27 KLM59F AMS → NUE May 27, 19:55 UTCMay 27, 20:50 UTC55m
2026-05-27 KLM44K CWL → AMS May 27, 17:15 UTCMay 27, 18:10 UTC55m
2026-05-27 KLM47T AMS → CWL May 27, 15:25 UTCMay 27, 16:25 UTC1h 0m
2026-05-27 KLM1844 NUE → AMS May 27, 13:25 UTCMay 27, 14:25 UTC1h 0m
2026-05-27 KLM71F AMS → LIS May 27, 11:30 UTCMay 27, 12:30 UTC1h 0m
2026-05-27 KLM90U ABZ → AMS May 27, 08:40 UTCMay 27, 09:55 UTC1h 15m
2026-05-27 KLM911 AMS → ABZ May 27, 06:44 UTCMay 27, 08:00 UTC1h 15m
2026-05-27 KLM76K VIE → AMS May 27, 04:39 UTCMay 27, 05:45 UTC1h 5m
2026-05-26 KLM59F AMS → NUE May 26, 20:29 UTCMay 26, 21:25 UTC55m
2026-05-26 KLM44K CWL → AMS May 26, 18:05 UTCMay 26, 18:59 UTC55m
2026-05-26 KLM47T AMS → CWL May 26, 15:09 UTCMay 26, 16:10 UTC1h 0m
2026-05-26 KLM1844 NUE → AMS May 26, 12:45 UTCMay 26, 13:45 UTC1h 0m
2026-05-26 KLM71F AMS → LIS May 26, 10:50 UTCMay 26, 11:50 UTC1h 0m
2026-05-26 KLM90U ABZ → AMS May 26, 08:19 UTCMay 26, 09:35 UTC1h 15m
2026-05-26 KLM911 AMS → ABZ May 26, 06:20 UTCMay 26, 07:29 UTC1h 10m
2026-05-26 KLM76K VIE → AMS May 26, 04:15 UTCMay 26, 05:15 UTC1h 0m
2026-05-25 KLM59F AMS → NUE May 25, 19:50 UTCMay 25, 20:45 UTC55m
2026-05-25 KLM66C TRF → AMS May 25, 17:10 UTCMay 25, 17:55 UTC45m
2026-05-25 KLM991 AMS → LCY May 25, 15:40 UTCMay 25, 16:20 UTC40m
2026-05-25 KLM68C DUS → AMS May 25, 13:00 UTCMay 25, 13:30 UTC30m
2026-05-25 KLM1801 AMS → MUC May 25, 11:35 UTCMay 25, 12:00 UTC25m
2026-05-25 KLM1174 TRD → AMS May 25, 08:45 UTCMay 25, 09:55 UTC1h 10m
2026-05-25 KLM33B AMS → SVG May 25, 06:35 UTCMay 25, 07:55 UTC1h 20m
2026-05-25 KLM88A DUS → AMS May 25, 04:35 UTCMay 25, 05:05 UTC30m
2026-05-24 KLM1805 AMS → DUS May 24, 20:10 UTCMay 24, 20:35 UTC25m
2026-05-24 KLM66C TRF → AMS May 24, 17:30 UTCMay 24, 18:10 UTC40m
2026-05-24 KLM991 AMS → LCY May 24, 15:45 UTCMay 24, 16:30 UTC45m
2026-05-24 KLM68C DUS → AMS May 24, 13:10 UTCMay 24, 13:40 UTC30m
2026-05-24 KLM1801 AMS → MUC May 24, 11:30 UTCMay 24, 12:05 UTC35m

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?
Yes. Mode-S 3C6D43 is currently airborne.
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, KLM1844, KLM59F, KLM911.