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sensors Mode-S transponder

3C6544

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIJD · AIRBUS A-320neo

Hex
3C6544
Octal
17062504
Decimal
3,958,084
Country
DE
Tail
D-AIJD
Type
A20N
No current signal · last broadcast Jul 22, 21:20 UTC
Flights observed
497
Distinct callsigns
20
Country
DE
Last broadcast
Jul 22, 21:20 UTC

Last known position

Most recent position reported by Mode-S 3C6544.

Country allocation

The ICAO 24-bit address 3C6544 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
DLH867 Lufthansa 9 2026-07-20
DLH866 Lufthansa 9 2026-07-19
DLH7RM - 7 2026-07-03
DLH7H - 7 2026-07-03
DLH9U - 5 2026-06-20
DLH8HP Lufthansa 5 2026-06-04
DLH878 Lufthansa 5 2026-06-04
DLH72K - 5 2026-07-04
DLH6U - 5 2026-07-14
DLH6CH - 5 2026-06-20
DLH4PH - 5 2026-07-13
DLH9VV Lufthansa 4 2026-07-19
DLH914 - 4 2026-07-02
DLH8UA - 4 2026-06-27
DLH885 Lufthansa 4 2026-07-22
DLH884 - 4 2026-07-21
DLH7WK Lufthansa 4 2026-06-01
DLH7TX Lufthansa 4 2026-06-15
DLH7KW - 4 2026-06-27
DLH6VX - 4 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 DLH2KK FRA → HAM Jul 22, 20:40 UTCJul 22, 21:20 UTC40m
2026-07-22 DLH35M MUC → CDG Jul 22, 12:05 UTCJul 22, 14:35 UTC2h 30m
2026-07-22 DLH885 TLL → FRA Jul 22, 03:20 UTCJul 22, 05:20 UTC2h 0m
2026-07-21 DLH884 FRA → TLL Jul 21, 19:35 UTCJul 21, 21:30 UTC1h 55m
2026-07-21 DLH5TY NAP → MUC Jul 21, 16:45 UTCJul 21, 18:15 UTC1h 30m
2026-07-21 DLH1LC - Jul 21, 13:45 UTCJul 21, 15:15 UTC1h 30m
2026-07-21 DLH4LX - Jul 21, 08:15 UTCJul 21, 09:55 UTC1h 40m
2026-07-21 DLH8CK FRA → OSL Jul 21, 05:20 UTCJul 21, 07:00 UTC1h 40m
2026-07-20 DLH9WT FRA → DUS Jul 20, 17:30 UTCJul 20, 19:10 UTC1h 40m
2026-07-20 DLH6VX FRA → ARN Jul 20, 15:00 UTCJul 20, 16:45 UTC1h 45m
2026-07-20 DLH11Y BCN → FRA Jul 20, 11:25 UTCJul 20, 13:05 UTC1h 40m
2026-07-20 DLH26C - Jul 20, 08:10 UTCJul 20, 10:00 UTC1h 50m
2026-07-20 DLH867 OSL → FRA Jul 20, 04:55 UTCJul 20, 06:35 UTC1h 40m
2026-07-19 DLH866 FRA → OSL Jul 19, 20:15 UTCJul 19, 22:00 UTC1h 45m
2026-07-19 DLH2EL - Jul 19, 09:30 UTCJul 19, 11:30 UTC2h 0m
2026-07-19 DLH9VV LCY → FRA Jul 19, 06:30 UTCJul 19, 08:15 UTC1h 45m
2026-07-18 DLH5MR - Jul 18, 19:45 UTCJul 18, 20:25 UTC40m
2026-07-18 DLH5MX FRA → MUC Jul 18, 17:40 UTCJul 18, 18:15 UTC35m
2026-07-18 DLH4N - Jul 18, 15:30 UTCJul 18, 16:10 UTC40m
2026-07-14 DLH9852 - Jul 14, 17:30 UTCJul 14, 18:10 UTC40m
2026-07-14 DLH1RJ EDI → FRA Jul 14, 12:10 UTCJul 14, 13:55 UTC1h 45m
2026-07-14 DLH4WF FRA → EDI Jul 14, 09:25 UTCJul 14, 11:00 UTC1h 35m
2026-07-14 DLH6U - Jul 14, 06:55 UTCJul 14, 07:50 UTC55m
2026-07-13 DLH4PH FRA → LHR Jul 13, 19:50 UTCJul 13, 20:55 UTC1h 5m
2026-07-13 DLH5AA - Jul 13, 16:50 UTCJul 13, 18:20 UTC1h 30m
2026-07-13 DLH7KH - Jul 13, 14:15 UTCJul 13, 15:35 UTC1h 20m
2026-07-13 DLH6C ZRH → FRA Jul 13, 12:10 UTCJul 13, 12:50 UTC40m
2026-07-13 DLH1EN FRA → ZRH Jul 13, 09:50 UTCJul 13, 10:40 UTC50m
2026-07-13 DLH77P BCN → FRA Jul 13, 06:20 UTCJul 13, 07:55 UTC1h 35m
2026-07-12 DLH11F FRA → BCN Jul 12, 16:15 UTCJul 12, 17:55 UTC1h 40m
2026-07-12 DLH1455 - Jul 12, 12:45 UTCJul 12, 14:45 UTC2h 0m
2026-07-12 DLH1454 - Jul 12, 09:35 UTCJul 12, 11:01 UTC1h 25m
2026-07-12 DLH2NL BER → FRA Jul 12, 06:50 UTCJul 12, 07:40 UTC50m
2026-07-12 DLH172 FRA → BER Jul 12, 04:55 UTCJul 12, 05:45 UTC50m
2026-07-11 DLH1YM - Jul 11, 17:50 UTCJul 11, 18:50 UTC1h 0m
2026-07-11 DLH1HT - Jul 11, 16:00 UTCJul 11, 16:50 UTC50m
2026-07-11 DLH37W - Jul 11, 12:55 UTCJul 11, 14:50 UTC1h 55m
2026-07-11 DLH02F - Jul 11, 09:20 UTCJul 11, 11:20 UTC2h 0m
2026-07-11 DLH02F FRA → FRA Jul 11, 08:01 UTCJul 11, 08:05 UTC5m
2026-07-11 DLH867 OSL → FRA Jul 11, 04:30 UTCJul 11, 06:20 UTC1h 50m
2026-07-10 DLH866 FRA → OSL Jul 10, 20:55 UTCJul 10, 22:35 UTC1h 40m
2026-07-10 DLH8CT BHX → FRA Jul 10, 17:40 UTCJul 10, 18:50 UTC1h 10m
2026-07-10 DLH5EF FRA → BHX Jul 10, 15:15 UTCJul 10, 16:25 UTC1h 10m
2026-07-10 DLH6KA BUD → FRA Jul 10, 12:40 UTCJul 10, 14:00 UTC1h 20m
2026-07-10 DLH3UX FRA → BUD Jul 10, 10:30 UTCJul 10, 11:35 UTC1h 5m
2026-07-10 DLH3A - Jul 10, 08:15 UTCJul 10, 08:55 UTC40m
2026-07-10 DLH6TR FRA → AMS Jul 10, 06:05 UTCJul 10, 07:00 UTC55m
2026-07-09 DLH1301 - Jul 9, 15:15 UTCJul 9, 18:05 UTC2h 50m
2026-07-09 DLH1300 - Jul 9, 11:20 UTCJul 9, 13:40 UTC2h 20m
2026-07-09 DLH99Y LIS → FRA Jul 9, 06:40 UTCJul 9, 09:10 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-AIJD page for operator, model, and routing details .

Mode-S 3C6544 frequently asked

What is Mode-S code 3C6544?
3C6544 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIJD.
Where is Mode-S 3C6544 registered?
Mode-S code 3C6544 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6544 broadcasting right now?
No active broadcast right now. Last signal was Jul 22, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6544, octal 17062504, decimal 3,958,084.
What flights does 3C6544 operate?
Mode-S 3C6544 has broadcast 20 distinct callsigns, including DLH867, DLH866, DLH7RM, DLH7H, DLH9U.