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sensors Mode-S transponder

3C666C

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AISL · AIRBUS A-321

Hex
3C666C
Octal
17063154
Decimal
3,958,380
Country
DE
Tail
D-AISL
Type
A321
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
469
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S 3C666C.

Country allocation

The ICAO 24-bit address 3C666C 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
DLH6YX Lufthansa 5 2026-07-19
DLH3MU - 5 2026-07-19
DLH11F Lufthansa 5 2026-07-22
DLH9PL Lufthansa 4 2026-07-26
DLH982 Lufthansa 4 2026-07-25
DLH85K - 4 2026-07-22
DLH83T - 4 2026-06-29
DLH53F Lufthansa 4 2026-07-22
DLH44K - 4 2026-07-20
DLH2XC - 4 2026-06-26
DLH1PF Lufthansa 4 2026-06-13
DLH192 Lufthansa 4 2026-06-26
DLH1561 Lufthansa 4 2026-07-20
DLH14C Lufthansa 4 2026-07-20
DLH1457 - 4 2026-07-08
DLH1456 - 4 2026-07-07
DLH05E - 4 2026-06-29
DLH9KK Lufthansa 3 2026-05-25
DLH9CP Lufthansa 3 2026-07-26
DLH979 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH1WL MAN → MUC Jul 26, 20:00 UTCJul 26, 20:50 UTC50m
2026-07-26 DLH6YJ FRA → BRE Jul 26, 17:10 UTCJul 26, 18:05 UTC55m
2026-07-26 DLH2FF GOT → MUC Jul 26, 15:00 UTCJul 26, 15:45 UTC45m
2026-07-26 DLH9CP FRA → BHX Jul 26, 12:15 UTCJul 26, 13:40 UTC1h 25m
2026-07-26 DLH8PK FRA → DUS Jul 26, 09:10 UTCJul 26, 10:40 UTC1h 30m
2026-07-26 DLH9PL HAJ → FRA Jul 26, 05:30 UTCJul 26, 06:55 UTC1h 26m
2026-07-25 DLH982 FRA → DUB Jul 25, 19:35 UTCJul 25, 21:10 UTC1h 35m
2026-07-25 DLH8JT ARN → FRA Jul 25, 11:50 UTCJul 25, 13:35 UTC1h 45m
2026-07-25 DLH4RJ MXP → FRA Jul 25, 09:05 UTCJul 25, 10:40 UTC1h 35m
2026-07-25 DLH3C ZRH → FRA Jul 25, 06:50 UTCJul 25, 07:25 UTC35m
2026-07-25 DLH8YY KRK → FRA Jul 25, 04:45 UTCJul 25, 05:25 UTC40m
2026-07-24 DLH09P BIO → MUC Jul 24, 17:30 UTCJul 24, 18:30 UTC1h 0m
2026-07-24 DLH81P FRA → LYS Jul 24, 15:45 UTCJul 24, 16:35 UTC50m
2026-07-24 DLH1299 IST → FRA Jul 24, 11:50 UTCJul 24, 14:20 UTC2h 30m
2026-07-24 DLH1298 FRA → IST Jul 24, 07:40 UTCJul 24, 10:05 UTC2h 25m
2026-07-24 DLH821 GOT → FRA Jul 24, 04:10 UTCJul 24, 05:25 UTC1h 15m
2026-07-23 DLH7CE BRE → MUC Jul 23, 20:25 UTCJul 23, 21:50 UTC1h 25m
2026-07-23 DLH39E STR → SKG Jul 23, 16:20 UTCJul 23, 18:35 UTC2h 15m
2026-07-23 DLH02M FRA → SKG Jul 23, 13:10 UTCJul 23, 15:05 UTC1h 55m
2026-07-23 DLH6P PRG → FRA Jul 23, 07:20 UTCJul 23, 08:05 UTC45m
2026-07-23 DLH8RX FRA → EDI Jul 23, 05:25 UTCJul 23, 06:10 UTC45m
2026-07-22 DLH11F FRA → OPO Jul 22, 16:00 UTCJul 22, 17:10 UTC1h 10m
2026-07-22 DLH85K - Jul 22, 12:35 UTCJul 22, 14:10 UTC1h 35m
2026-07-22 DLH53F FRA → BCN Jul 22, 10:20 UTCJul 22, 11:15 UTC55m
2026-07-22 DLH1327 TUN → FRA Jul 22, 01:10 UTCJul 22, 03:10 UTC2h 0m
2026-07-21 DLH1326 - Jul 21, 20:10 UTCJul 21, 21:45 UTC1h 35m
2026-07-21 DLH1299 IST → FRA Jul 21, 11:55 UTCJul 21, 14:35 UTC2h 40m
2026-07-21 DLH1298 FRA → IST Jul 21, 07:45 UTCJul 21, 10:00 UTC2h 15m
2026-07-20 DLH1561 EVN → FRA Jul 20, 19:25 UTCJul 21, 05:10 UTC9h 44m
2026-07-20 DLH44K - Jul 20, 15:40 UTCJul 20, 17:35 UTC1h 55m
2026-07-20 DLH14C FRA → MAD Jul 20, 12:00 UTCJul 20, 14:05 UTC2h 5m
2026-07-20 DLH6EN CPH → FRA Jul 20, 08:40 UTCJul 20, 09:40 UTC1h 0m
2026-07-20 DLH4HK - Jul 20, 06:25 UTCJul 20, 07:30 UTC1h 5m
2026-07-19 OCN3ME HER → FRA Jul 19, 17:10 UTCJul 19, 19:55 UTC2h 45m
2026-07-19 OCN7YZ - Jul 19, 13:10 UTCJul 19, 15:35 UTC2h 25m
2026-07-19 DLH6YX LHR → MUC Jul 19, 09:55 UTCJul 19, 11:25 UTC1h 30m
2026-07-19 DLH3MU - Jul 19, 07:10 UTCJul 19, 08:25 UTC1h 15m
2026-07-18 DLH1561 EVN → FRA Jul 18, 19:35 UTCJul 19, 04:45 UTC9h 10m
2026-07-18 DLH8HP - Jul 18, 13:50 UTCJul 18, 16:50 UTC3h 0m
2026-07-18 DLH878 - Jul 18, 09:40 UTCJul 18, 12:20 UTC2h 40m
2026-07-18 DLH893 - Jul 18, 03:35 UTCJul 18, 05:20 UTC1h 45m
2026-07-17 DLH892 FRA → RIX Jul 17, 18:29 UTCJul 17, 20:15 UTC1h 45m
2026-07-17 DLH3EK OSL → FRA Jul 17, 15:10 UTCJul 17, 17:05 UTC1h 55m
2026-07-17 DLH3NX - Jul 17, 12:10 UTCJul 17, 13:45 UTC1h 35m
2026-07-17 DLH7F - Jul 17, 09:35 UTCJul 17, 10:30 UTC55m
2026-07-17 DLH33M FRA → CDG Jul 17, 07:40 UTCJul 17, 08:30 UTC50m
2026-07-17 DLH1561 EVN → FRA Jul 17, 01:09 UTCJul 17, 04:59 UTC3h 50m
2026-07-16 DLH1560 - Jul 16, 19:40 UTCJul 16, 22:59 UTC3h 20m
2026-07-16 DLH4UP MLA → FRA Jul 16, 15:05 UTCJul 16, 17:35 UTC2h 30m
2026-07-16 DLH8PP FRA → MLA Jul 16, 12:00 UTCJul 16, 14:05 UTC2h 5m

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

Mode-S 3C666C frequently asked

What is Mode-S code 3C666C?
3C666C is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AISL.
Where is Mode-S 3C666C registered?
Mode-S code 3C666C is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C666C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C666C, octal 17063154, decimal 3,958,380.
What flights does 3C666C operate?
Mode-S 3C666C has broadcast 20 distinct callsigns, including DLH6YX, DLH3MU, DLH11F, DLH9PL, DLH982.