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sensors Mode-S transponder

3C66AD

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIUM · AIRBUS A-320

Hex
3C66AD
Octal
17063255
Decimal
3,958,445
Country
DE
Tail
D-AIUM
Type
A320
No current signal · last broadcast Jul 26, 19:25 UTC
Flights observed
602
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 19:25 UTC

Last known position

Most recent position reported by Mode-S 3C66AD.

Country allocation

The ICAO 24-bit address 3C66AD 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
DLH9XC Lufthansa 7 2026-07-26
DLH9LY - 7 2026-07-23
DLH8NP - 7 2026-07-20
DLH6CJ Lufthansa 7 2026-07-26
DLH29Y - 7 2026-07-03
DLH1PJ Lufthansa 7 2026-07-25
DLH1ME Lufthansa 7 2026-07-25
DLH07T - 7 2026-07-03
DLH8VC - 6 2026-07-15
DLH82A - 6 2026-07-04
DLH7HV Lufthansa 6 2026-07-23
DLH6EL Lufthansa 6 2026-07-26
DLH5HV - 6 2026-07-21
DLH4ER Lufthansa 6 2026-07-25
DLH1LY - 6 2026-07-15
DLH1775 Lufthansa 6 2026-07-23
DLH1774 Lufthansa 6 2026-07-23
DLH03W - 6 2026-07-04
DLH9VT - 5 2026-07-17
DLH9JV Lufthansa 5 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH92A MUC → MAD Jul 26, 18:05 UTCJul 26, 19:25 UTC1h 20m
2026-07-26 DLH6CJ FRA → LHR Jul 26, 15:40 UTCJul 26, 17:00 UTC1h 20m
2026-07-26 DLH9XC FRA → MXP Jul 26, 13:15 UTCJul 26, 14:30 UTC1h 15m
2026-07-26 DLH6PL FRA → HAM Jul 26, 10:20 UTCJul 26, 11:50 UTC1h 30m
2026-07-26 DLH8YH MUC → MAN Jul 26, 07:00 UTCJul 26, 08:50 UTC1h 50m
2026-07-26 DLH6EL FRA → FMO Jul 26, 04:25 UTCJul 26, 05:10 UTC45m
2026-07-25 DLH4ER MUC → OUL Jul 25, 19:05 UTCJul 25, 19:45 UTC40m
2026-07-25 DLH88E MRS → MUC Jul 25, 16:45 UTCJul 25, 18:00 UTC1h 15m
2026-07-25 DLH07A MUC → MRS Jul 25, 14:00 UTCJul 25, 15:15 UTC1h 15m
2026-07-25 DLH1ME ZAG → MUC Jul 25, 11:30 UTCJul 25, 12:15 UTC45m
2026-07-25 DLH1PJ GDN → FRA Jul 25, 09:45 UTCJul 25, 10:20 UTC35m
2026-07-25 DLH2LX HAJ → FRA Jul 25, 07:15 UTCJul 25, 08:30 UTC1h 15m
2026-07-25 DLH9JV FRA → DUS Jul 25, 04:50 UTCJul 25, 06:05 UTC1h 15m
2026-07-24 DLH88E MRS → MUC Jul 24, 16:35 UTCJul 24, 17:45 UTC1h 10m
2026-07-24 DLH07A MUC → MRS Jul 24, 13:50 UTCJul 24, 15:05 UTC1h 15m
2026-07-24 DLH1ME ZAG → MUC Jul 24, 11:40 UTCJul 24, 12:25 UTC45m
2026-07-24 DLH1PJ GDN → FRA Jul 24, 09:55 UTCJul 24, 10:25 UTC30m
2026-07-24 DLH6AC - Jul 24, 07:30 UTCJul 24, 08:25 UTC55m
2026-07-24 DLH5JW FRA → GOT Jul 24, 05:30 UTCJul 24, 06:30 UTC1h 0m
2026-07-23 DLH7HV FRA → LHR Jul 23, 18:35 UTCJul 23, 19:25 UTC50m
2026-07-23 DLH9LY - Jul 23, 16:50 UTCJul 23, 17:40 UTC50m
2026-07-23 DLH6RM - Jul 23, 14:25 UTCJul 23, 15:40 UTC1h 15m
2026-07-23 DLH1UW FRA → DUB Jul 23, 11:50 UTCJul 23, 12:50 UTC1h 0m
2026-07-23 DLH1775 IST → MUC Jul 23, 08:55 UTCJul 23, 10:45 UTC1h 50m
2026-07-23 DLH1774 MUC → IST Jul 23, 05:55 UTCJul 23, 07:35 UTC1h 40m
2026-07-22 DLH8KM - Jul 22, 17:45 UTCJul 22, 19:05 UTC1h 20m
2026-07-22 DLH6RF - Jul 22, 14:30 UTCJul 22, 16:15 UTC1h 45m
2026-07-22 DLH97J - Jul 22, 12:00 UTCJul 22, 13:15 UTC1h 15m
2026-07-22 DLH6VT - Jul 22, 04:30 UTCJul 22, 10:25 UTC5h 55m
2026-07-21 DLH7HV FRA → LHR Jul 21, 18:35 UTCJul 21, 19:25 UTC50m
2026-07-21 DLH9LY - Jul 21, 16:40 UTCJul 21, 17:35 UTC55m
2026-07-21 DLH8JA FRA → EDI Jul 21, 14:20 UTCJul 21, 15:10 UTC50m
2026-07-21 DLH3YK - Jul 21, 12:30 UTCJul 21, 13:25 UTC55m
2026-07-21 DLH1721 ZAD → MUC Jul 21, 09:40 UTCJul 21, 10:35 UTC55m
2026-07-21 DLH1720 MUC → ZAD Jul 21, 07:50 UTCJul 21, 08:30 UTC40m
2026-07-21 DLH5HV DUS → MUC Jul 21, 05:40 UTCJul 21, 06:25 UTC45m
2026-07-20 DLH8NP - Jul 20, 17:40 UTCJul 20, 18:35 UTC55m
2026-07-20 DLH1LM LHR → MUC Jul 20, 15:15 UTCJul 20, 16:00 UTC45m
2026-07-20 DLH8YL DUS → FRA Jul 20, 13:25 UTCJul 20, 14:10 UTC45m
2026-07-20 DLH3VE FRA → LHR Jul 20, 11:40 UTCJul 20, 12:15 UTC35m
2026-07-20 DLH6RL FRA → HAJ Jul 20, 10:15 UTCJul 20, 10:45 UTC30m
2026-07-20 DLH3M - Jul 20, 07:50 UTCJul 20, 08:50 UTC1h 0m
2026-07-20 DLH3PK - Jul 20, 06:00 UTCJul 20, 06:55 UTC55m
2026-07-19 DLH7HV DUS → MUC Jul 19, 18:40 UTCJul 19, 19:30 UTC50m
2026-07-19 DLH9LY - Jul 19, 16:50 UTCJul 19, 17:40 UTC50m
2026-07-19 DLH24T - Jul 19, 13:55 UTCJul 19, 15:30 UTC1h 35m
2026-07-19 DLH87A - Jul 19, 11:05 UTCJul 19, 12:50 UTC1h 45m
2026-07-19 DLH4AK - Jul 19, 09:10 UTCJul 19, 10:00 UTC50m
2026-07-19 DLH4X MUC → BER Jul 19, 07:20 UTCJul 19, 08:10 UTC50m
2026-07-19 DLH2FL VCE → FRA Jul 19, 03:15 UTCJul 19, 05:30 UTC2h 15m

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

Mode-S 3C66AD frequently asked

What is Mode-S code 3C66AD?
3C66AD is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIUM.
Where is Mode-S 3C66AD registered?
Mode-S code 3C66AD is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66AD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66AD, octal 17063255, decimal 3,958,445.
What flights does 3C66AD operate?
Mode-S 3C66AD has broadcast 20 distinct callsigns, including DLH9XC, DLH9LY, DLH8NP, DLH6CJ, DLH29Y.