Apparatus

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sensors Mode-S transponder

3C6663

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AISC · AIRBUS A-321

Hex
3C6663
Octal
17063143
Decimal
3,958,371
Country
DE
Tail
D-AISC
Type
A321
No current signal · last broadcast Jul 26, 22:10 UTC
Flights observed
427
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 22:10 UTC

Last known position

Most recent position reported by Mode-S 3C6663.

Country allocation

The ICAO 24-bit address 3C6663 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
DLH8CK Lufthansa 5 2026-07-24
DLH85K - 5 2026-07-07
DLH77P Lufthansa 5 2026-07-26
DLH5TY - 5 2026-06-25
DLH53F - 5 2026-07-07
DLH4YF Lufthansa 5 2026-05-30
DLH4LX Lufthansa 5 2026-07-24
DLH1LC Lufthansa 5 2026-06-25
DLH11F Lufthansa 5 2026-07-25
DLH9MH Lufthansa 4 2026-06-15
DLH81H - 4 2026-06-27
DLH7EL - 4 2026-07-01
DLH2NL - 4 2026-07-07
DLH2HH Lufthansa 4 2026-06-15
DLH247 Lufthansa 4 2026-05-30
DLH1HE - 4 2026-07-01
DLH172 - 4 2026-07-07
DLH9PL - 3 2026-06-21
DLH99F Lufthansa 3 2026-07-24
DLH982 - 3 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH5EL BEG → FRA Jul 26, 20:20 UTCJul 26, 22:10 UTC1h 50m
2026-07-26 DLH3HT HAM → FRA Jul 26, 17:25 UTCJul 26, 18:25 UTC1h 0m
2026-07-26 DLH830 FRA → CPH Jul 26, 15:15 UTCJul 26, 16:15 UTC1h 0m
2026-07-26 DLH6C ZRH → FRA Jul 26, 12:05 UTCJul 26, 12:45 UTC40m
2026-07-26 DLH1EN EDI → FRA Jul 26, 09:50 UTCJul 26, 10:25 UTC35m
2026-07-26 DLH77P MAD → MUC Jul 26, 06:25 UTCJul 26, 08:10 UTC1h 46m
2026-07-25 DLH11F FRA → OPO Jul 25, 16:15 UTCJul 25, 18:00 UTC1h 45m
2026-07-25 DLH6UP FRA → HAJ Jul 25, 12:15 UTCJul 25, 14:45 UTC2h 30m
2026-07-25 DLH4PP LHR → MUC Jul 25, 08:30 UTCJul 25, 10:40 UTC2h 10m
2026-07-25 DLH1JT MUC → LHR Jul 25, 03:40 UTCJul 25, 05:50 UTC2h 10m
2026-07-24 DLH1UT MAN → MUC Jul 24, 18:05 UTCJul 24, 19:50 UTC1h 45m
2026-07-24 DLH37F LYS → FRA Jul 24, 14:35 UTCJul 24, 16:25 UTC1h 50m
2026-07-24 DLH99F GRZ → FRA Jul 24, 11:20 UTCJul 24, 13:00 UTC1h 40m
2026-07-24 DLH4LX HEL → FRA Jul 24, 08:20 UTCJul 24, 09:55 UTC1h 35m
2026-07-24 DLH8CK FRA → BRU Jul 24, 05:35 UTCJul 24, 07:20 UTC1h 45m
2026-07-23 DLH947 MAN → FRA Jul 23, 18:00 UTCJul 23, 19:15 UTC1h 15m
2026-07-23 DLH9YW - Jul 23, 15:15 UTCJul 23, 16:30 UTC1h 15m
2026-07-23 DLH5RL MUC → BHX Jul 23, 11:45 UTCJul 23, 13:50 UTC2h 5m
2026-07-23 DLH9YC FRA → STR Jul 23, 08:40 UTCJul 23, 10:30 UTC1h 50m
2026-07-23 DLH85N FRA → FAO Jul 23, 04:55 UTCJul 23, 06:50 UTC1h 55m
2026-07-22 DLH48F - Jul 22, 19:25 UTCJul 22, 21:05 UTC1h 40m
2026-07-22 DLH44K PMI → FRA Jul 22, 15:50 UTCJul 22, 17:55 UTC2h 5m
2026-07-22 DLH14C FRA → MAD Jul 22, 12:00 UTCJul 22, 14:10 UTC2h 10m
2026-07-21 DLH37F LYS → FRA Jul 21, 14:40 UTCJul 21, 16:35 UTC1h 55m
2026-07-21 DLH99F GRZ → FRA Jul 21, 11:40 UTCJul 21, 13:15 UTC1h 35m
2026-07-21 DLH3PF MUC → FRA Jul 21, 08:40 UTCJul 21, 10:15 UTC1h 35m
2026-07-21 DLH9LL - Jul 21, 05:30 UTCJul 21, 06:50 UTC1h 20m
2026-07-20 DLH897 VNO → FRA Jul 20, 17:00 UTCJul 20, 18:50 UTC1h 50m
2026-07-20 DLH896 - Jul 20, 14:25 UTCJul 20, 16:05 UTC1h 40m
2026-07-20 DLH9917 - Jul 20, 11:20 UTCJul 20, 12:40 UTC1h 20m
2026-07-18 DLH7CE BRE → MUC Jul 18, 20:50 UTCJul 18, 21:55 UTC1h 5m
2026-07-18 DLH947 - Jul 18, 17:50 UTCJul 18, 19:00 UTC1h 10m
2026-07-18 DLH9YW FRA → MAN Jul 18, 14:50 UTCJul 18, 16:25 UTC1h 35m
2026-07-18 DLH9EJ TOS → FRA Jul 18, 11:25 UTCJul 18, 13:30 UTC2h 5m
2026-07-18 DLH5MV - Jul 18, 08:20 UTCJul 18, 10:10 UTC1h 50m
2026-07-18 DLH11A MUC → FUE Jul 18, 04:20 UTCJul 18, 06:15 UTC1h 55m
2026-07-17 DLH04U BOD → BOD Jul 17, 19:00 UTCJul 17, 21:05 UTC2h 5m
2026-07-17 DLH7LY ARN → FRA Jul 17, 15:29 UTCJul 17, 17:25 UTC1h 55m
2026-07-17 DLH804 FRA → ARN Jul 17, 12:00 UTCJul 17, 13:40 UTC1h 40m
2026-07-17 DLH1PF - Jul 17, 07:25 UTCJul 17, 08:54 UTC1h 30m
2026-07-16 DLH338 - Jul 16, 19:35 UTCJul 16, 21:10 UTC1h 35m
2026-07-16 DLH35M LIS → FRA Jul 16, 12:30 UTCJul 16, 14:55 UTC2h 25m
2026-07-16 DLH39X FRA → LIS Jul 16, 08:05 UTCJul 16, 10:59 UTC2h 55m
2026-07-16 DLH1PF - Jul 16, 04:15 UTCJul 16, 06:05 UTC1h 50m
2026-07-15 DLH336 - Jul 15, 17:50 UTCJul 15, 19:25 UTC1h 35m
2026-07-15 DLH57Y - Jul 15, 12:05 UTCJul 15, 14:20 UTC2h 15m
2026-07-15 DLH17F - Jul 15, 07:55 UTCJul 15, 10:45 UTC2h 50m
2026-07-15 DLH6EJ BLL → FRA Jul 15, 04:20 UTCJul 15, 05:25 UTC1h 5m
2026-07-14 DLH4KW - Jul 14, 20:25 UTCJul 14, 21:25 UTC1h 0m
2026-07-14 DLH979 DUB → FRA Jul 14, 12:40 UTCJul 14, 14:20 UTC1h 40m

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

Mode-S 3C6663 frequently asked

What is Mode-S code 3C6663?
3C6663 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AISC.
Where is Mode-S 3C6663 registered?
Mode-S code 3C6663 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6663 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6663, octal 17063143, decimal 3,958,371.
What flights does 3C6663 operate?
Mode-S 3C6663 has broadcast 20 distinct callsigns, including DLH8CK, DLH85K, DLH77P, DLH5TY, DLH53F.