Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3C666F

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AISO · AIRBUS A-321

Hex
3C666F
Octal
17063157
Decimal
3,958,383
Country
DE
Tail
D-AISO
Type
A321
No current signal · last broadcast 2h ago
Flights observed
448
Distinct callsigns
20
Country
DE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 3C666F.

Country allocation

The ICAO 24-bit address 3C666F 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
DLH895 Lufthansa 6 2026-06-08
DLH894 Lufthansa 6 2026-06-08
DLH4LC Lufthansa 5 2026-07-21
DLH1WL Lufthansa 5 2026-07-24
DLH1RF Lufthansa 5 2026-07-21
DLH85N - 4 2026-07-16
DLH82V - 4 2026-07-11
DLH6VP Lufthansa 4 2026-07-17
DLH6JT - 4 2026-07-02
DLH5TY Lufthansa 4 2026-06-08
DLH5KW - 4 2026-07-18
DLH4P - 4 2026-07-02
DLH4NH - 4 2026-06-21
DLH4KV - 4 2026-06-21
DLH48F - 4 2026-07-15
DLH44K - 4 2026-06-23
DLH43U - 4 2026-07-11
DLH39E - 4 2026-07-10
DLH1LC Lufthansa 4 2026-06-08
DLH14C - 4 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH12K FAO → FRA Jul 26, 15:35 UTCJul 26, 17:30 UTC1h 55m
2026-07-26 DLH62F FRA → BCN Jul 26, 12:35 UTCJul 26, 14:05 UTC1h 30m
2026-07-26 DLH9KK BLQ → FRA Jul 26, 10:15 UTCJul 26, 11:00 UTC45m
2026-07-26 DLH3WU FRA → LHR Jul 26, 08:00 UTCJul 26, 08:50 UTC50m
2026-07-26 DLH11A MUC → FUE Jul 26, 04:15 UTCJul 26, 06:10 UTC1h 55m
2026-07-25 DLH04U BOD → BOD Jul 25, 18:55 UTCJul 25, 20:55 UTC2h 0m
2026-07-25 DLH309 CTA → FRA Jul 25, 15:15 UTCJul 25, 17:25 UTC2h 10m
2026-07-25 DLH4AR BRE → MUC Jul 25, 11:50 UTCJul 25, 13:50 UTC2h 0m
2026-07-25 DLH7EK FRA → BRU Jul 25, 04:40 UTCJul 25, 05:30 UTC50m
2026-07-24 DLH1WL MAN → MUC Jul 24, 19:40 UTCJul 24, 20:30 UTC50m
2026-07-24 DLH687 TLV → FRA Jul 24, 14:20 UTCJul 24, 18:15 UTC3h 55m
2026-07-24 DLH686 FRA → TLV Jul 24, 09:05 UTCJul 24, 12:40 UTC3h 35m
2026-07-24 DLH78H IBZ → MUC Jul 24, 04:10 UTCJul 24, 06:10 UTC2h 0m
2026-07-23 DLH74U FRA → MAD Jul 23, 15:55 UTCJul 23, 18:00 UTC2h 5m
2026-07-23 DLH85K BIO → FRA Jul 23, 12:35 UTCJul 23, 14:25 UTC1h 50m
2026-07-23 DLH53F FRA → BCN Jul 23, 09:40 UTCJul 23, 11:10 UTC1h 30m
2026-07-23 DLH77P MAD → MUC Jul 23, 06:10 UTCJul 23, 07:55 UTC1h 45m
2026-07-22 DLH11F FRA → OPO Jul 22, 18:50 UTCJul 22, 20:25 UTC1h 35m
2026-07-22 DLH64M AGP → FRA Jul 22, 13:15 UTCJul 22, 15:45 UTC2h 30m
2026-07-22 DLH76N - Jul 22, 05:10 UTCJul 22, 11:55 UTC6h 45m
2026-07-21 DLH44C FRA → OPO Jul 21, 19:20 UTCJul 21, 21:40 UTC2h 20m
2026-07-21 DLH875 BGO → FRA Jul 21, 16:05 UTCJul 21, 17:45 UTC1h 40m
2026-07-21 DLH8WY FRA → BGO Jul 21, 12:40 UTCJul 21, 14:30 UTC1h 50m
2026-07-21 DLH1RF MUC → FRA Jul 21, 10:15 UTCJul 21, 10:55 UTC40m
2026-07-21 DLH4LC FRA → HAM Jul 21, 08:30 UTCJul 21, 09:05 UTC35m
2026-07-21 DLH207 BER → FRA Jul 21, 05:55 UTCJul 21, 06:45 UTC50m
2026-07-20 DLH206 FRA → DRS Jul 20, 20:05 UTCJul 20, 20:50 UTC45m
2026-07-20 DLH3MA FRA → CPH Jul 20, 16:00 UTCJul 20, 18:40 UTC2h 40m
2026-07-20 DLH4LM FRA → ATH Jul 20, 12:30 UTCJul 20, 14:50 UTC2h 20m
2026-07-20 DLH9KK - Jul 20, 09:55 UTCJul 20, 10:40 UTC45m
2026-07-20 DLH3WU FRA → LHR Jul 20, 08:05 UTCJul 20, 08:55 UTC50m
2026-07-20 DLH035 HAM → FRA Jul 20, 05:40 UTCJul 20, 06:25 UTC45m
2026-07-19 DLH1WL FRA → HAM Jul 19, 19:35 UTCJul 19, 20:25 UTC50m
2026-07-19 DLH7MN - Jul 19, 17:05 UTCJul 19, 18:05 UTC1h 0m
2026-07-19 DLH9CH FRA → VCE Jul 19, 15:00 UTCJul 19, 15:55 UTC55m
2026-07-19 DLH8JT ARN → FRA Jul 19, 11:55 UTCJul 19, 13:45 UTC1h 50m
2026-07-19 DLH4RJ MXP → FRA Jul 19, 08:50 UTCJul 19, 10:30 UTC1h 40m
2026-07-19 DLH37Y LIS → FRA Jul 19, 04:10 UTCJul 19, 06:35 UTC2h 25m
2026-07-18 DLH65U BCN → MUC Jul 18, 18:50 UTCJul 18, 21:35 UTC2h 45m
2026-07-18 DLH3EK - Jul 18, 15:05 UTCJul 18, 16:45 UTC1h 40m
2026-07-18 DLH3NX FRA → OSL Jul 18, 12:35 UTCJul 18, 14:00 UTC1h 25m
2026-07-18 DLH1RF MUC → FRA Jul 18, 10:15 UTCJul 18, 10:50 UTC35m
2026-07-18 DLH4LC FRA → HAM Jul 18, 08:40 UTCJul 18, 09:15 UTC35m
2026-07-18 DLH5KW - Jul 18, 04:55 UTCJul 18, 06:40 UTC1h 45m
2026-07-17 DLH6VP FRA → ARN Jul 17, 20:40 UTCJul 17, 22:10 UTC1h 30m
2026-07-17 DLH5RM DUB → FRA Jul 17, 17:50 UTCJul 17, 19:20 UTC1h 30m
2026-07-17 DLH980 FRA → DUB Jul 17, 14:55 UTCJul 17, 16:34 UTC1h 40m
2026-07-17 DLH6YX - Jul 17, 11:35 UTCJul 17, 13:05 UTC1h 30m
2026-07-17 DLH3MU - Jul 17, 08:59 UTCJul 17, 10:10 UTC1h 10m
2026-07-17 DLH04C - Jul 17, 04:54 UTCJul 17, 06:29 UTC1h 35m

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

Mode-S 3C666F frequently asked

What is Mode-S code 3C666F?
3C666F is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AISO.
Where is Mode-S 3C666F registered?
Mode-S code 3C666F is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C666F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C666F, octal 17063157, decimal 3,958,383.
What flights does 3C666F operate?
Mode-S 3C666F has broadcast 20 distinct callsigns, including DLH895, DLH894, DLH4LC, DLH1WL, DLH1RF.