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sensors Mode-S transponder

3C66A6

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIUF · AIRBUS A-320

Hex
3C66A6
Octal
17063246
Decimal
3,958,438
Country
DE
Tail
D-AIUF
Type
A320
Broadcasting now · callsign DLH2FL · 11,325 ft
Flights observed
241
Distinct callsigns
20
Country
DE
Last broadcast
1h ago

Current position

3C66A6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C66A6 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
DLH96K - 4 2026-06-24
DLH68W - 4 2026-06-26
DLH63M - 4 2026-06-24
DLH44U - 4 2026-06-26
DLH99P - 3 2026-06-13
DLH8PN Lufthansa 3 2026-06-13
DLH82A - 3 2026-06-23
DLH7YW - 3 2026-06-18
DLH7FM - 3 2026-06-24
DLH77M Lufthansa 3 2026-06-18
DLH6RL Lufthansa 3 2026-06-20
DLH6AC - 3 2026-06-22
DLH66J Lufthansa 3 2026-06-02
DLH5UW Lufthansa 3 2026-06-13
DLH5JW - 3 2026-06-22
DLH4YV Lufthansa 3 2026-06-18
DLH3VE Lufthansa 3 2026-06-20
DLH3TR - 3 2026-06-18
DLH36M Lufthansa 3 2026-06-16
DLH2X - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-28 DLH2FL - Jun 28, 03:09 UTCJun 28, 03:29 UTC20m
2026-06-27 DLH5AE MUC → ATH Jun 27, 18:35 UTCJun 27, 20:39 UTC2h 5m
2026-06-27 DLH8M HAM → MUC Jun 27, 16:10 UTCJun 27, 16:59 UTC50m
2026-06-27 DLH5MJ MUC → CGN Jun 27, 13:44 UTCJun 27, 14:45 UTC1h 0m
2026-06-27 DLH5MA CPH → MUC Jun 27, 11:09 UTCJun 27, 12:25 UTC1h 15m
2026-06-27 DLH5KH MUC → CPH Jun 27, 08:35 UTCJun 27, 09:44 UTC1h 10m
2026-06-27 DLH4HF FRA → MXP Jun 27, 06:40 UTCJun 27, 07:30 UTC50m
2026-06-27 DLH8VV MUC → CGN Jun 27, 04:49 UTCJun 27, 05:39 UTC50m
2026-06-26 DLH8UC - Jun 26, 17:25 UTCJun 26, 19:09 UTC1h 45m
2026-06-26 DLH1EJ LHR → MUC Jun 26, 14:35 UTCJun 26, 16:09 UTC1h 35m
2026-06-26 DLH68W TLS → MUC Jun 26, 11:40 UTCJun 26, 12:59 UTC1h 20m
2026-06-26 DLH44U MUC → TLS Jun 26, 09:05 UTCJun 26, 10:30 UTC1h 25m
2026-06-25 DLH65X LYS → MUC Jun 25, 12:19 UTCJun 25, 13:14 UTC55m
2026-06-25 DLH02J MUC → LYS Jun 25, 09:45 UTCJun 25, 10:50 UTC1h 5m
2026-06-25 DLH3AC EDI → FRA Jun 25, 04:04 UTCJun 25, 05:20 UTC1h 15m
2026-06-24 DLH6CX FRA → BER Jun 24, 19:00 UTCJun 24, 20:09 UTC1h 10m
2026-06-24 DLH04J FRA → MRS Jun 24, 16:14 UTCJun 24, 17:14 UTC1h 0m
2026-06-24 DLH99X MUC → MAD Jun 24, 14:04 UTCJun 24, 15:14 UTC1h 10m
2026-06-24 DLH96K - Jun 24, 10:10 UTCJun 24, 11:50 UTC1h 40m
2026-06-24 DLH63M - Jun 24, 07:10 UTCJun 24, 08:49 UTC1h 40m
2026-06-24 DLH7FM - Jun 24, 04:10 UTCJun 24, 05:29 UTC1h 20m
2026-06-23 DLH1JF - Jun 23, 21:20 UTCJun 23, 22:29 UTC1h 10m
2026-06-23 DLH03W - Jun 23, 18:39 UTCJun 23, 20:24 UTC1h 45m
2026-06-23 DLH82A - Jun 23, 15:30 UTCJun 23, 17:09 UTC1h 40m
2026-06-23 DLH96K - Jun 23, 11:04 UTCJun 23, 12:49 UTC1h 45m
2026-06-23 DLH63M - Jun 23, 08:00 UTCJun 23, 09:40 UTC1h 40m
2026-06-23 DLH7XV ARN → MUC Jun 23, 04:14 UTCJun 23, 06:04 UTC1h 50m
2026-06-22 DLH5EE - Jun 22, 20:30 UTCJun 22, 22:24 UTC1h 55m
2026-06-22 DLH4NV - Jun 22, 17:40 UTCJun 22, 19:29 UTC1h 50m
2026-06-22 DLH3FU - Jun 22, 14:40 UTCJun 22, 16:40 UTC2h 0m
2026-06-22 DLH1ME - Jun 22, 12:10 UTCJun 22, 12:54 UTC45m
2026-06-22 DLH1PJ - Jun 22, 10:15 UTCJun 22, 10:55 UTC40m
2026-06-22 DLH6AC BUD → MUC Jun 22, 07:30 UTCJun 22, 08:29 UTC1h 0m
2026-06-22 DLH5JW MUC → BUD Jun 22, 05:29 UTCJun 22, 06:25 UTC55m
2026-06-21 DLH09F VIE → MUC Jun 21, 20:45 UTCJun 21, 21:39 UTC55m
2026-06-21 DLH06N FRA → GRZ Jun 21, 18:25 UTCJun 21, 19:39 UTC1h 15m
2026-06-21 DLH1721 ZAD → MUC Jun 21, 16:10 UTCJun 21, 17:05 UTC55m
2026-06-21 DLH1720 MUC → ZAD Jun 21, 13:04 UTCJun 21, 13:54 UTC50m
2026-06-21 DLH29Y FRA → OPO Jun 21, 10:34 UTCJun 21, 11:40 UTC1h 5m
2026-06-21 DLH07T - Jun 21, 08:10 UTCJun 21, 09:20 UTC1h 10m
2026-06-20 DLH1HR FRA → DUB Jun 20, 17:44 UTCJun 20, 20:05 UTC2h 20m
2026-06-20 DLH7EE HAM → FRA Jun 20, 14:05 UTCJun 20, 16:09 UTC2h 5m
2026-06-20 DLH3VE FRA → LHR Jun 20, 11:49 UTCJun 20, 12:24 UTC35m
2026-06-20 DLH6RL FRA → HAJ Jun 20, 10:15 UTCJun 20, 10:49 UTC35m
2026-06-20 DLH2LX - Jun 20, 07:29 UTCJun 20, 08:55 UTC1h 25m
2026-06-20 DLH9JV - Jun 20, 04:44 UTCJun 20, 05:49 UTC1h 5m
2026-06-19 DLH2RJ - Jun 19, 17:29 UTCJun 19, 19:39 UTC2h 10m
2026-06-19 DLH3CK TRS → FRA Jun 19, 14:24 UTCJun 19, 16:19 UTC1h 55m
2026-06-19 DLH3VE FRA → LHR Jun 19, 12:04 UTCJun 19, 12:39 UTC35m
2026-06-19 DLH6RL FRA → HAJ Jun 19, 10:35 UTCJun 19, 11:04 UTC30m

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

Mode-S 3C66A6 frequently asked

What is Mode-S code 3C66A6?
3C66A6 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIUF.
Where is Mode-S 3C66A6 registered?
Mode-S code 3C66A6 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66A6 broadcasting right now?
Yes. Mode-S 3C66A6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66A6, octal 17063246, decimal 3,958,438.
What flights does 3C66A6 operate?
Mode-S 3C66A6 has broadcast 20 distinct callsigns, including DLH96K, DLH68W, DLH63M, DLH44U, DLH99P.