Apparatus

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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 1h ago
Flights observed
482
Distinct callsigns
20
Country
DE
Last broadcast
1h ago

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 - 6 2026-07-09
DLH7F - 6 2026-07-05
DLH33M - 6 2026-07-05
DLH5JV - 5 2026-07-10
DLH9KY - 4 2026-07-02
DLH8JV Lufthansa 4 2026-05-26
DLH8AU - 4 2026-06-28
DLH897 - 4 2026-07-02
DLH896 - 4 2026-07-02
DLH7JV - 4 2026-06-28
DLH6P - 4 2026-06-29
DLH6MM - 4 2026-06-20
DLH4WU - 4 2026-07-03
DLH4WF - 4 2026-07-12
DLH3EV Lufthansa 4 2026-05-09
DLH2NE - 4 2026-06-20
DLH1UL - 4 2026-07-11
DLH1RJ - 4 2026-07-12
DLH1CW - 4 2026-07-11
DLH195 Lufthansa 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH05H FRA → BCN Jul 14, 19:30 UTCJul 14, 21:05 UTC1h 35m
2026-07-14 DLH9MH BER → FRA Jul 14, 12:40 UTCJul 14, 13:35 UTC55m
2026-07-14 DLH2HH FRA → BER Jul 14, 10:40 UTCJul 14, 11:25 UTC45m
2026-07-14 DLH9K GVA → FRA Jul 14, 06:45 UTCJul 14, 07:35 UTC50m
2026-07-14 DLH1CH FRA → GVA Jul 14, 05:00 UTCJul 14, 05:45 UTC45m
2026-07-13 DLH4RF - Jul 13, 16:50 UTCJul 13, 17:55 UTC1h 5m
2026-07-13 DLH9MF - Jul 13, 14:50 UTCJul 13, 15:45 UTC55m
2026-07-13 DLH8HT - Jul 13, 09:55 UTCJul 13, 10:35 UTC40m
2026-07-13 DLH5EC FRA → MUC Jul 13, 08:10 UTCJul 13, 08:40 UTC30m
2026-07-13 DLH1EE - Jul 13, 06:10 UTCJul 13, 06:50 UTC40m
2026-07-12 DLH2KK FRA → MUC Jul 12, 20:25 UTCJul 12, 20:55 UTC30m
2026-07-12 DLH119 - Jul 12, 17:40 UTCJul 12, 18:20 UTC40m
2026-07-12 DLH6LF FRA → MUC Jul 12, 16:10 UTCJul 12, 16:45 UTC35m
2026-07-12 DLH1RJ - Jul 12, 12:40 UTCJul 12, 14:10 UTC1h 30m
2026-07-12 DLH4WF FRA → EDI Jul 12, 09:35 UTCJul 12, 11:10 UTC1h 35m
2026-07-12 DLH3HP MLA → FRA Jul 12, 04:01 UTCJul 12, 06:35 UTC2h 35m
2026-07-11 DLH8AH FRA → MLA Jul 11, 18:50 UTCJul 11, 21:00 UTC2h 10m
2026-07-11 DLH4N MUC → FRA Jul 11, 15:15 UTCJul 11, 16:00 UTC45m
2026-07-11 DLH5YE FRA → MUC Jul 11, 13:20 UTCJul 11, 13:50 UTC30m
2026-07-11 DLH1UL BUD → FRA Jul 11, 09:55 UTCJul 11, 11:20 UTC1h 25m
2026-07-11 DLH1CW FRA → BUD Jul 11, 07:45 UTCJul 11, 08:55 UTC1h 10m
2026-07-11 DLH9FW MUC → FRA Jul 11, 05:10 UTCJul 11, 05:55 UTC45m
2026-07-10 DLH7EC FRA → MUC Jul 10, 18:35 UTCJul 10, 19:05 UTC30m
2026-07-10 DLH309 - Jul 10, 14:50 UTCJul 10, 17:00 UTC2h 10m
2026-07-10 DLH4AR - Jul 10, 11:30 UTCJul 10, 13:30 UTC2h 0m
2026-07-10 DLH837 - Jul 10, 08:55 UTCJul 10, 10:05 UTC1h 10m
2026-07-10 DLH836 FRA → BLL Jul 10, 07:05 UTCJul 10, 08:05 UTC1h 0m
2026-07-10 DLH5JV LEJ → FRA Jul 10, 04:35 UTCJul 10, 05:10 UTC35m
2026-07-09 DLH9HC FRA → LEJ Jul 9, 20:45 UTCJul 9, 21:20 UTC35m
2026-07-09 DLH17P VLC → FRA Jul 9, 16:35 UTCJul 9, 18:35 UTC2h 0m
2026-07-09 DLH33A FRA → VLC Jul 9, 13:35 UTCJul 9, 15:30 UTC1h 55m
2026-07-09 DLH1RF - Jul 9, 10:10 UTCJul 9, 10:50 UTC40m
2026-07-09 DLH4LC FRA → MUC Jul 9, 08:35 UTCJul 9, 09:10 UTC35m
2026-07-09 DLH243 FCO → FRA Jul 9, 05:25 UTCJul 9, 07:05 UTC1h 40m
2026-07-08 DLH8HX - Jul 8, 19:30 UTCJul 8, 20:45 UTC1h 15m
2026-07-08 DLH9AV - Jul 8, 13:20 UTCJul 8, 14:50 UTC1h 30m
2026-07-08 DLH7XP - Jul 8, 10:45 UTCJul 8, 12:00 UTC1h 15m
2026-07-08 DLH1TT BUD → FRA Jul 8, 07:35 UTCJul 8, 08:55 UTC1h 20m
2026-07-08 DLH5PP FRA → BUD Jul 8, 05:20 UTCJul 8, 06:30 UTC1h 10m
2026-07-07 DLH7EL VCE → FRA Jul 7, 13:35 UTCJul 7, 14:35 UTC1h 0m
2026-07-07 DLH1HE FRA → VCE Jul 7, 11:20 UTCJul 7, 12:10 UTC50m
2026-07-07 DLH3A - Jul 7, 09:05 UTCJul 7, 09:45 UTC40m
2026-07-07 DLH6TR FRA → AMS Jul 7, 06:00 UTCJul 7, 06:50 UTC50m
2026-07-07 DLH4XV - Jul 7, 04:10 UTCJul 7, 04:35 UTC25m
2026-07-06 DLH078 FRA → DUS Jul 6, 19:20 UTCJul 6, 19:50 UTC30m
2026-07-06 DLH08F BCN → FRA Jul 6, 14:35 UTCJul 6, 16:20 UTC1h 45m
2026-07-06 DLH01E FRA → BCN Jul 6, 11:50 UTCJul 6, 13:35 UTC1h 45m
2026-07-06 DLH4P PRG → FRA Jul 6, 09:40 UTCJul 6, 10:30 UTC50m
2026-07-06 DLH6JT FRA → PRG Jul 6, 08:00 UTCJul 6, 08:50 UTC50m
2026-07-06 DLH3HP MLA → FRA Jul 6, 03:55 UTCJul 6, 06:25 UTC2h 30m

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 1h ago.
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, DLH9KY.