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sensors Mode-S transponder

3C6743

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIZC · AIRBUS A-320

Hex
3C6743
Octal
17063503
Decimal
3,958,595
Country
DE
Tail
D-AIZC
Type
A320
No current signal · last broadcast Jul 26, 20:10 UTC
Flights observed
559
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 20:10 UTC

Last known position

Most recent position reported by Mode-S 3C6743.

Country allocation

The ICAO 24-bit address 3C6743 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
DLH9HC - 7 2026-07-15
DLH7F - 7 2026-07-19
DLH33M - 7 2026-07-19
DLH5JV - 6 2026-07-16
DLH897 Lufthansa 5 2026-07-22
DLH896 - 5 2026-07-22
DLH9KY - 4 2026-07-02
DLH9C Lufthansa 4 2026-07-24
DLH8JV Lufthansa 4 2026-05-26
DLH8HT Lufthansa 4 2026-07-23
DLH8AU - 4 2026-06-28
DLH7JV - 4 2026-06-28
DLH6P - 4 2026-06-29
DLH6MM - 4 2026-06-20
DLH6EN - 4 2026-07-16
DLH5LY Lufthansa 4 2026-07-24
DLH5EC Lufthansa 4 2026-07-23
DLH4WU - 4 2026-07-03
DLH4WF - 4 2026-07-12
DLH4HK - 4 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH078 FRA → DUS Jul 26, 19:35 UTCJul 26, 20:10 UTC35m
2026-07-26 DLH99M GRZ → FRA Jul 26, 16:10 UTCJul 26, 18:25 UTC2h 15m
2026-07-26 DLH93V FRA → ALC Jul 26, 12:45 UTCJul 26, 14:50 UTC2h 5m
2026-07-26 DLH8XA FRA → BER Jul 26, 09:05 UTCJul 26, 09:45 UTC40m
2026-07-26 DLH9MT FRA → SOF Jul 26, 07:35 UTCJul 26, 08:10 UTC35m
2026-07-26 DLH885 TLL → FRA Jul 26, 03:20 UTCJul 26, 05:25 UTC2h 5m
2026-07-25 DLH884 FRA → TLL Jul 25, 19:10 UTCJul 25, 21:05 UTC1h 55m
2026-07-25 DLH6EE FRA → LHR Jul 25, 16:30 UTCJul 25, 17:05 UTC35m
2026-07-25 DLH4MW BER → FRA Jul 25, 14:55 UTCJul 25, 15:30 UTC35m
2026-07-25 DLH9CP FRA → BHX Jul 25, 12:20 UTCJul 25, 14:05 UTC1h 45m
2026-07-25 DLH8PK FRA → DUS Jul 25, 09:25 UTCJul 25, 10:45 UTC1h 20m
2026-07-25 DLH8PK FRA → DUS Jul 25, 09:10 UTCJul 25, 09:15 UTC5m
2026-07-25 DLH1EE FRA → LCY Jul 25, 06:10 UTCJul 25, 06:50 UTC40m
2026-07-24 DLH2KK FRA → HAM Jul 24, 20:40 UTCJul 24, 21:15 UTC35m
2026-07-24 DLH3HU ATH → MUC Jul 24, 18:10 UTCJul 24, 18:45 UTC35m
2026-07-24 DLH6RX FRA → MUC Jul 24, 16:25 UTCJul 24, 17:00 UTC35m
2026-07-24 DLH3PX LIN → FRA Jul 24, 13:55 UTCJul 24, 14:50 UTC55m
2026-07-24 DLH5LY MAN → FRA Jul 24, 12:05 UTCJul 24, 12:55 UTC50m
2026-07-24 DLH9C ZRH → FRA Jul 24, 10:25 UTCJul 24, 11:05 UTC40m
2026-07-24 DLH1KJ FRA → STR Jul 24, 08:40 UTCJul 24, 09:20 UTC40m
2026-07-24 DLH85N FRA → FAO Jul 24, 05:05 UTCJul 24, 06:35 UTC1h 30m
2026-07-23 DLH48F - Jul 23, 18:30 UTCJul 23, 20:00 UTC1h 30m
2026-07-23 DLH08F BCN → FRA Jul 23, 14:35 UTCJul 23, 16:20 UTC1h 45m
2026-07-23 DLH01E MUC → OPO Jul 23, 11:50 UTCJul 23, 13:35 UTC1h 45m
2026-07-23 DLH8HT FRA → HAM Jul 23, 09:40 UTCJul 23, 10:20 UTC40m
2026-07-23 DLH5EC FRA → MUC Jul 23, 07:55 UTCJul 23, 08:35 UTC40m
2026-07-23 DLH88P MUC → BIQ Jul 23, 04:55 UTCJul 23, 06:10 UTC1h 15m
2026-07-22 DLH55U OPO → MUC Jul 22, 19:55 UTCJul 22, 21:05 UTC1h 10m
2026-07-22 DLH897 VNO → FRA Jul 22, 16:35 UTCJul 22, 18:25 UTC1h 50m
2026-07-22 DLH896 - Jul 22, 14:00 UTCJul 22, 15:40 UTC1h 40m
2026-07-22 DLH6C ZRH → FRA Jul 22, 11:50 UTCJul 22, 12:30 UTC40m
2026-07-22 DLH4YF - Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-21 DLH5AA FRA → HAJ Jul 21, 17:10 UTCJul 21, 18:50 UTC1h 40m
2026-07-21 DLH7KH - Jul 21, 14:35 UTCJul 21, 15:55 UTC1h 20m
2026-07-21 DLH9C ZRH → FRA Jul 21, 10:00 UTCJul 21, 10:50 UTC50m
2026-07-21 DLH1KJ FRA → ZRH Jul 21, 08:35 UTCJul 21, 09:10 UTC35m
2026-07-21 DLH54J LYS → FRA Jul 21, 05:05 UTCJul 21, 06:05 UTC1h 0m
2026-07-20 DLH19E FRA → LYS Jul 20, 20:10 UTCJul 20, 21:10 UTC1h 0m
2026-07-20 DLH119 MUC → FRA Jul 20, 18:10 UTCJul 20, 18:50 UTC40m
2026-07-20 DLH6LF FRA → MUC Jul 20, 16:00 UTCJul 20, 16:35 UTC35m
2026-07-20 DLH7EL - Jul 20, 13:25 UTCJul 20, 14:25 UTC1h 0m
2026-07-20 DLH1HE - Jul 20, 11:00 UTCJul 20, 12:00 UTC1h 0m
2026-07-20 DLH36N - Jul 20, 08:40 UTCJul 20, 09:25 UTC45m
2026-07-20 DLH37T FRA → SZG Jul 20, 07:10 UTCJul 20, 07:50 UTC40m
2026-07-20 DLH88P MUC → BIQ Jul 20, 04:30 UTCJul 20, 05:40 UTC1h 10m
2026-07-19 DLH55U FRA → NCE Jul 19, 19:30 UTCJul 19, 20:45 UTC1h 15m
2026-07-19 DLH3FT - Jul 19, 17:20 UTCJul 19, 17:55 UTC35m
2026-07-19 DLH8NK FRA → MUC Jul 19, 15:45 UTCJul 19, 16:15 UTC30m
2026-07-19 DLH1HF - Jul 19, 13:40 UTCJul 19, 14:05 UTC25m
2026-07-19 DLH5TV FRA → HAM Jul 19, 12:00 UTCJul 19, 12:35 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-AIZC page for operator, model, and routing details .

Mode-S 3C6743 frequently asked

What is Mode-S code 3C6743?
3C6743 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIZC.
Where is Mode-S 3C6743 registered?
Mode-S code 3C6743 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6743 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6743, octal 17063503, decimal 3,958,595.
What flights does 3C6743 operate?
Mode-S 3C6743 has broadcast 20 distinct callsigns, including DLH9HC, DLH7F, DLH33M, DLH5JV, DLH897.