Apparatus

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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
Transponder active on ground
Flights observed
220
Distinct callsigns
20
Country
DE
Last broadcast
15m 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
DLH5TY Lufthansa 4 2026-06-08
DLH1LC Lufthansa 4 2026-06-08
DLH9KX Lufthansa 3 2026-05-13
DLH4NH Lufthansa 3 2026-06-07
DLH4KV Lufthansa 3 2026-06-07
DLH44K Lufthansa 3 2026-06-04
DLH1LL Lufthansa 3 2026-05-13
DLH14C Lufthansa 3 2026-06-04
DLH9PL Lufthansa 2 2026-05-19
DLH9ML Lufthansa 2 2026-06-03
DLH982 Lufthansa 2 2026-05-18
DLH980 Lufthansa 2 2026-06-11
DLH979 Lufthansa 2 2026-05-13
DLH978 Lufthansa 2 2026-05-13
DLH8LP Lufthansa 2 2026-05-29
DLH82V Lufthansa 2 2026-06-06
DLH7VT Lufthansa 2 2026-05-30
DLH76N Lufthansa 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-11 DLH980 FRA → DUB Jun 11, 14:00 UTCJun 11, 15:45 UTC1h 45m
2026-06-11 DLH9MH BLL → FRA Jun 11, 12:05 UTCJun 11, 12:50 UTC45m
2026-06-11 DLH2HH MUC → FRA Jun 11, 10:00 UTCJun 11, 10:45 UTC45m
2026-06-11 DLH7FL OSL → FRA Jun 11, 07:15 UTCJun 11, 07:50 UTC35m
2026-06-11 DLH3HH NAP → MUC Jun 11, 05:35 UTCJun 11, 06:10 UTC35m
2026-06-10 DLH39E STR → SKG Jun 10, 16:25 UTCJun 10, 18:35 UTC2h 10m
2026-06-10 DLH02M FRA → SKG Jun 10, 13:00 UTCJun 10, 15:05 UTC2h 5m
2026-06-10 DLH6VR FRA → LJU Jun 10, 09:10 UTCJun 10, 11:45 UTC2h 35m
2026-06-10 DLH9MN MUC → ARN Jun 10, 05:20 UTCJun 10, 07:50 UTC2h 30m
2026-06-09 DLH1RE MUC → HEL Jun 9, 11:05 UTCJun 9, 13:15 UTC2h 10m
2026-06-09 DLH880 FRA → TLL Jun 9, 08:05 UTCJun 9, 10:00 UTC1h 55m
2026-06-09 DLH333 VCE → FRA Jun 9, 05:00 UTCJun 9, 06:00 UTC1h 0m
2026-06-08 DLH1RH FRA → VCE Jun 8, 19:55 UTCJun 8, 20:55 UTC1h 0m
2026-06-08 DLH5TY NAP → MUC Jun 8, 17:05 UTCJun 8, 18:30 UTC1h 25m
2026-06-08 DLH1LC WRO → FRA Jun 8, 14:20 UTCJun 8, 15:45 UTC1h 25m
2026-06-08 DLH895 SVG → FRA Jun 8, 11:10 UTCJun 8, 13:00 UTC1h 50m
2026-06-08 DLH894 FRA → SVG Jun 8, 08:10 UTCJun 8, 09:50 UTC1h 40m
2026-06-08 DLH5KW MUC → CGN Jun 8, 04:35 UTCJun 8, 06:20 UTC1h 45m
2026-06-07 DLH6VP FRA → ARN Jun 7, 20:25 UTCJun 7, 22:10 UTC1h 45m
2026-06-07 DLH963 EDI → FRA Jun 7, 17:25 UTCJun 7, 18:55 UTC1h 30m
2026-06-07 DLH2XH FRA → EDI Jun 7, 14:30 UTCJun 7, 16:10 UTC1h 40m
2026-06-07 DLH4KV HAJ → FRA Jun 7, 10:55 UTCJun 7, 13:05 UTC2h 10m
2026-06-07 DLH4NH FRA → SJJ Jun 7, 07:45 UTCJun 7, 09:45 UTC2h 0m
2026-06-07 DLH88P MUC → BIQ Jun 7, 04:55 UTCJun 7, 06:05 UTC1h 10m
2026-06-06 DLH55U OPO → MUC Jun 6, 19:19 UTCJun 6, 20:30 UTC1h 10m
2026-06-06 DLH3FT MUC → FRA Jun 6, 17:15 UTCJun 6, 17:54 UTC40m
2026-06-06 DLH8NK VCE → FRA Jun 6, 15:44 UTCJun 6, 16:20 UTC35m
2026-06-06 DLH43U TLS → FRA Jun 6, 11:30 UTCJun 6, 13:44 UTC2h 15m
2026-06-06 DLH82V FRA → OPO Jun 6, 07:45 UTCJun 6, 10:09 UTC2h 25m
2026-06-06 DLH1305 IST → FRA Jun 6, 03:00 UTCJun 6, 05:35 UTC2h 35m
2026-06-05 DLH1304 FRA → IST Jun 5, 16:30 UTCJun 5, 19:00 UTC2h 30m
2026-06-05 DLH1299 IST → FRA Jun 5, 11:25 UTCJun 5, 14:00 UTC2h 35m
2026-06-05 DLH1298 FRA → IST Jun 5, 07:15 UTCJun 5, 09:50 UTC2h 35m
2026-06-04 DLH44K PMI → FRA Jun 4, 16:00 UTCJun 4, 17:55 UTC1h 55m
2026-06-04 DLH14C FRA → MAD Jun 4, 12:20 UTCJun 4, 14:45 UTC2h 25m
2026-06-04 DLH4HU MXP → MUC Jun 4, 09:25 UTCJun 4, 10:45 UTC1h 20m
2026-06-04 DLH6EM BEG → FRA Jun 4, 07:10 UTCJun 4, 08:20 UTC1h 10m
2026-06-04 DLH5LX FRA → HAM Jun 4, 04:25 UTCJun 4, 05:40 UTC1h 15m
2026-06-03 DLH9ML FRA → KRK Jun 3, 20:35 UTCJun 3, 21:45 UTC1h 10m
2026-06-03 DLH3WJ MUC → LHR Jun 3, 17:15 UTCJun 3, 18:35 UTC1h 20m
2026-06-03 DLH5RX FRA → LHR Jun 3, 15:00 UTCJun 3, 16:15 UTC1h 15m
2026-06-03 DLH895 SVG → FRA Jun 3, 10:55 UTCJun 3, 12:40 UTC1h 45m
2026-06-03 DLH894 FRA → SVG Jun 3, 08:05 UTCJun 3, 09:50 UTC1h 45m
2026-06-03 DLH1457 TIA → FRA Jun 3, 04:20 UTCJun 3, 06:10 UTC1h 50m
2026-06-02 DLH1456 FRA → TIA Jun 2, 19:30 UTCJun 2, 21:10 UTC1h 40m
2026-06-02 DLH8HP FRA → CTA Jun 2, 14:20 UTCJun 2, 17:15 UTC2h 55m
2026-06-02 DLH878 FRA → SVG Jun 2, 10:05 UTCJun 2, 12:35 UTC2h 30m
2026-06-02 DLH1EE FRA → LCY Jun 2, 06:20 UTCJun 2, 07:05 UTC45m
2026-06-01 DLH2KK FRA → HAM Jun 1, 20:50 UTCJun 1, 21:25 UTC35m
2026-06-01 DLH3MA FRA → CPH Jun 1, 15:55 UTCJun 1, 18:30 UTC2h 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?
Mode-S 3C666F is currently broadcasting from the ground.
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, DLH5TY, DLH1LC, DLH9KX.