Apparatus

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sensors Mode-S transponder

3C66C1

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIVA · AIRBUS A-350-900

Hex
3C66C1
Octal
17063301
Decimal
3,958,465
Country
DE
Tail
D-AIVA
Type
A359
No current signal · last broadcast 1d ago
Flights observed
90
Distinct callsigns
10
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3C66C1.

Country allocation

The ICAO 24-bit address 3C66C1 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 10 distinct

Callsign Airline Flights Last seen
DLH477 Lufthansa 16 2026-06-01
DLH4J Lufthansa 13 2026-06-01
DLH475 Lufthansa 13 2026-06-02
DLH767 Lufthansa 10 2026-05-25
DLH766 Lufthansa 10 2026-05-25
DLH476 Lufthansa 10 2026-05-31
DLH495 Lufthansa 8 2026-05-31
DLH494 Lufthansa 8 2026-05-30
DLH4W Lufthansa 1 2026-05-04
DLH428 Lufthansa 1 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 DLH475 YUL → MUC Jun 2, 00:55 UTCJun 2, 07:45 UTC6h 50m
2026-06-01 DLH4J MUC → YUL Jun 1, 15:10 UTCJun 1, 22:25 UTC7h 15m
2026-06-01 DLH477 YVR → MUC Jun 1, 02:50 UTCJun 1, 11:40 UTC8h 50m
2026-05-31 DLH476 MUC → YVR May 31, 15:10 UTCJun 1, 00:55 UTC9h 45m
2026-05-31 DLH495 YYZ → MUC May 31, 08:25 UTCMay 31, 08:40 UTC15m
2026-05-30 DLH494 MUC → YYZ May 30, 15:10 UTCMay 30, 22:50 UTC7h 40m
2026-05-30 DLH477 YVR → MUC May 30, 02:06 UTCMay 30, 11:25 UTC9h 19m
2026-05-29 DLH476 MUC → YVR May 29, 14:10 UTCMay 29, 23:55 UTC9h 45m
2026-05-29 DLH475 YUL → MUC May 29, 01:10 UTCMay 29, 08:05 UTC6h 55m
2026-05-28 DLH4J MUC → YUL May 28, 15:05 UTCMay 28, 22:20 UTC7h 15m
2026-05-28 DLH475 YUL → MUC May 28, 01:05 UTCMay 28, 08:20 UTC7h 15m
2026-05-27 DLH4J MUC → YUL May 27, 15:05 UTCMay 27, 22:30 UTC7h 25m
2026-05-27 DLH475 YUL → MUC May 27, 01:09 UTCMay 27, 08:00 UTC6h 50m
2026-05-26 DLH4J MUC → YUL May 26, 15:09 UTCMay 26, 22:39 UTC7h 30m
2026-05-25 DLH767 BOM → MUC May 25, 20:59 UTCMay 26, 05:20 UTC8h 20m
2026-05-25 DLH766 MUC → BOM May 25, 10:50 UTCMay 25, 18:25 UTC7h 35m
2026-05-24 DLH4J MUC → YUL May 24, 15:05 UTCMay 25, 07:45 UTC16h 40m
2026-05-24 DLH477 YVR → MUC May 24, 02:10 UTCMay 24, 11:20 UTC9h 10m
2026-05-23 DLH476 MUC → YVR May 23, 14:15 UTCMay 24, 00:10 UTC9h 56m
2026-05-23 DLH475 YUL → MUC May 23, 01:05 UTCMay 23, 07:45 UTC6h 40m
2026-05-22 DLH4J MUC → YUL May 22, 15:00 UTCMay 22, 22:25 UTC7h 25m
2026-05-22 DLH477 YVR → MUC May 22, 02:00 UTCMay 22, 11:35 UTC9h 34m
2026-05-21 DLH476 MUC → YVR May 21, 14:25 UTCMay 22, 00:10 UTC9h 45m
2026-05-21 DLH495 YYZ → MUC May 21, 01:55 UTCMay 21, 08:55 UTC7h 0m
2026-05-20 DLH494 MUC → YYZ May 20, 14:35 UTCMay 20, 23:05 UTC8h 30m
2026-05-20 DLH495 YYZ → MUC May 20, 00:40 UTCMay 20, 08:00 UTC7h 21m
2026-05-19 DLH494 MUC → YYZ May 19, 14:20 UTCMay 19, 22:30 UTC8h 10m
2026-05-19 DLH477 YVR → MUC May 19, 01:50 UTCMay 19, 11:20 UTC9h 30m
2026-05-18 DLH476 MUC → YVR May 18, 14:20 UTCMay 18, 23:45 UTC9h 24m
2026-05-18 DLH477 YVR → MUC May 18, 02:00 UTCMay 18, 11:30 UTC9h 30m
2026-05-17 DLH476 MUC → YVR May 17, 14:10 UTCMay 17, 23:30 UTC9h 20m
2026-05-17 DLH495 YYZ → MUC May 17, 00:55 UTCMay 17, 08:15 UTC7h 20m
2026-05-16 DLH494 MUC → YYZ May 16, 14:31 UTCMay 16, 22:30 UTC8h 0m
2026-05-15 DLH767 BOM → MUC May 15, 20:55 UTCMay 16, 05:05 UTC8h 10m
2026-05-15 DLH766 MUC → BOM May 15, 10:40 UTCMay 15, 18:20 UTC7h 39m
2026-05-14 DLH766 MUC → BOM May 14, 10:50 UTCMay 15, 05:10 UTC18h 20m
2026-05-14 DLH475 YUL → MUC May 14, 01:10 UTCMay 14, 08:05 UTC6h 55m
2026-05-13 DLH4J MUC → YUL May 13, 15:10 UTCMay 13, 22:45 UTC7h 35m
2026-05-13 DLH477 YVR → MUC May 13, 02:30 UTCMay 13, 11:45 UTC9h 15m
2026-05-12 DLH476 MUC → YVR May 12, 14:35 UTCMay 13, 00:15 UTC9h 40m
2026-05-11 DLH477 YVR → MUC May 11, 16:20 UTCMay 12, 11:30 UTC19h 11m
2026-05-11 DLH477 YVR → MUC May 11, 14:20 UTCMay 12, 11:30 UTC21h 11m
2026-05-11 DLH475 YUL → MUC May 11, 09:35 UTCMay 11, 10:00 UTC25m
2026-05-11 DLH475 YUL → MUC May 11, 01:25 UTCMay 11, 08:25 UTC7h 0m
2026-05-10 DLH4J MUC → YUL May 10, 14:54 UTCMay 10, 22:35 UTC7h 40m
2026-05-07 DLH767 BOM → MUC May 7, 10:30 UTCMay 8, 05:29 UTC18h 59m
2026-05-06 DLH766 MUC → BOM May 6, 10:35 UTCMay 7, 04:55 UTC18h 19m
2026-05-05 DLH766 MUC → BOM May 5, 10:25 UTCMay 6, 04:45 UTC18h 20m
2026-05-04 DLH4W BRU → FRA May 4, 23:10 UTCMay 5, 07:20 UTC8h 10m
2026-05-04 DLH428 MUC → CLT May 4, 11:30 UTCMay 4, 20:25 UTC8h 56m

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

Mode-S 3C66C1 frequently asked

What is Mode-S code 3C66C1?
3C66C1 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIVA.
Where is Mode-S 3C66C1 registered?
Mode-S code 3C66C1 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66C1 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66C1, octal 17063301, decimal 3,958,465.
What flights does 3C66C1 operate?
Mode-S 3C66C1 has broadcast 10 distinct callsigns, including DLH477, DLH4J, DLH475, DLH767, DLH766.