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sensors Mode-S transponder

3C66AB

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIUK · AIRBUS A-320

Hex
3C66AB
Octal
17063253
Decimal
3,958,443
Country
DE
Tail
D-AIUK
Type
A320
Broadcasting now · callsign DLH1WR · 25,250 ft
Flights observed
589
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 18:20 UTC

Current position

3C66AB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C66AB 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
DLH68W - 8 2026-07-14
DLH44U - 8 2026-07-14
DLH1913 Lufthansa 8 2026-07-25
DLH7JE - 7 2026-07-19
DLH2RX - 7 2026-07-18
DLH6LK Lufthansa 6 2026-06-11
DLH4UV - 6 2026-07-12
DLH8PF - 5 2026-07-03
DLH8NP - 5 2026-07-21
DLH8LY Lufthansa 5 2026-06-11
DLH8KM - 5 2026-07-24
DLH7YC Lufthansa 5 2026-05-25
DLH7VX Lufthansa 5 2026-07-24
DLH6RF - 5 2026-07-24
DLH6JF Lufthansa 5 2026-06-24
DLH66J - 5 2026-07-07
DLH5AH Lufthansa 5 2026-06-24
DLH4T - 5 2026-07-11
DLH3X - 5 2026-07-22
DLH29Y Lufthansa 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH5YW - Jul 26, 16:40 UTCJul 26, 18:20 UTC1h 40m
2026-07-26 DLH5KX - Jul 26, 14:10 UTCJul 26, 15:30 UTC1h 20m
2026-07-26 DLH1FF MUC → LJU Jul 26, 11:50 UTCJul 26, 12:45 UTC55m
2026-07-26 DLH3EE FRA → SOF Jul 26, 09:55 UTCJul 26, 10:50 UTC55m
2026-07-26 DLH2LX HAJ → FRA Jul 26, 07:15 UTCJul 26, 08:30 UTC1h 15m
2026-07-26 DLH9JV FRA → DUS Jul 26, 04:50 UTCJul 26, 05:55 UTC1h 5m
2026-07-25 DLH1913 OLB → MUC Jul 25, 19:30 UTCJul 25, 20:40 UTC1h 10m
2026-07-25 DLH5HT FRA → MLA Jul 25, 16:55 UTCJul 25, 18:05 UTC1h 10m
2026-07-25 DLH6LX ATH → MUC Jul 25, 13:15 UTCJul 25, 15:30 UTC2h 15m
2026-07-25 DLH3FP FRA → BHX Jul 25, 09:50 UTCJul 25, 11:45 UTC1h 55m
2026-07-25 DLH3LY FRA → LHR Jul 25, 07:55 UTCJul 25, 08:35 UTC40m
2026-07-25 DLH8ET STR → FRA Jul 25, 06:10 UTCJul 25, 06:55 UTC45m
2026-07-25 DLH1HP BHX → MUC Jul 25, 03:15 UTCJul 25, 04:35 UTC1h 20m
2026-07-24 DLH5PJ EAP → FRA Jul 24, 20:15 UTCJul 24, 21:25 UTC1h 10m
2026-07-24 DLH8KM - Jul 24, 17:35 UTCJul 24, 19:00 UTC1h 25m
2026-07-24 DLH6RF MUC → BHX Jul 24, 14:20 UTCJul 24, 16:00 UTC1h 40m
2026-07-24 DLH97J FRA → MAD Jul 24, 12:10 UTCJul 24, 13:20 UTC1h 10m
2026-07-24 DLH66E MUC → BIO Jul 24, 10:00 UTCJul 24, 11:10 UTC1h 10m
2026-07-24 DLH7VX GLA → FRA Jul 24, 08:05 UTCJul 24, 08:40 UTC35m
2026-07-24 DLH1YN MUC → PRG Jul 24, 06:35 UTCJul 24, 07:10 UTC35m
2026-07-24 DLH4CH MUC → AMS Jul 24, 04:40 UTCJul 24, 05:35 UTC55m
2026-07-23 DLH9WA FRA → BRU Jul 23, 20:00 UTCJul 23, 20:55 UTC55m
2026-07-23 DLH4NV BGO → MUC Jul 23, 16:45 UTCJul 23, 18:35 UTC1h 50m
2026-07-23 DLH3FU MUC → BGO Jul 23, 13:45 UTCJul 23, 16:00 UTC2h 15m
2026-07-23 DLH9FL HEL → FRA Jul 23, 11:40 UTCJul 23, 12:25 UTC45m
2026-07-23 DLH8AA - Jul 23, 10:15 UTCJul 23, 10:45 UTC30m
2026-07-23 DLH6AC BUD → MUC Jul 23, 07:20 UTCJul 23, 08:20 UTC1h 0m
2026-07-23 DLH5JW - Jul 23, 05:30 UTCJul 23, 06:25 UTC55m
2026-07-22 DLH1XN BER → MUC Jul 22, 17:55 UTCJul 22, 18:45 UTC50m
2026-07-22 DLH3X - Jul 22, 16:10 UTCJul 22, 17:00 UTC50m
2026-07-22 DLH9WY DRS → MUC Jul 22, 14:25 UTCJul 22, 15:00 UTC35m
2026-07-22 DLH5HF BER → MUC Jul 22, 13:05 UTCJul 22, 13:40 UTC35m
2026-07-22 DLH29Y FRA → OPO Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-21 DLH8NP - Jul 21, 18:00 UTCJul 21, 18:55 UTC55m
2026-07-21 DLH9AC DBV → MUC Jul 21, 15:30 UTCJul 21, 17:05 UTC1h 35m
2026-07-21 DLH9WE - Jul 21, 13:30 UTCJul 21, 14:40 UTC1h 10m
2026-07-21 DLH3NC CPH → FRA Jul 21, 10:30 UTCJul 21, 12:20 UTC1h 50m
2026-07-21 DLH4JA MUC → OTP Jul 21, 07:15 UTCJul 21, 08:40 UTC1h 25m
2026-07-21 DLH2FL VCE → FRA Jul 21, 03:20 UTCJul 21, 05:40 UTC2h 20m
2026-07-20 DLH5AE STR → MUC Jul 20, 17:40 UTCJul 20, 19:50 UTC2h 10m
2026-07-20 DLH2UT HAM → FRA Jul 20, 12:40 UTCJul 20, 13:55 UTC1h 15m
2026-07-20 DLH1KK FRA → ARN Jul 20, 09:15 UTCJul 20, 10:35 UTC1h 20m
2026-07-19 DLH8EL - Jul 19, 18:40 UTCJul 19, 19:30 UTC50m
2026-07-19 DLH8PC - Jul 19, 17:00 UTCJul 19, 17:45 UTC45m
2026-07-19 DLH2UT HAM → FRA Jul 19, 12:05 UTCJul 19, 13:30 UTC1h 25m
2026-07-19 DLH1KK FRA → ARN Jul 19, 08:45 UTCJul 19, 09:55 UTC1h 10m
2026-07-19 DLH7JE - Jul 19, 06:35 UTCJul 19, 07:45 UTC1h 10m
2026-07-18 DLH2RX - Jul 18, 18:55 UTCJul 18, 20:15 UTC1h 20m
2026-07-18 DLH88E - Jul 18, 16:35 UTCJul 18, 17:45 UTC1h 10m
2026-07-18 DLH07A MUC → MRS Jul 18, 14:05 UTCJul 18, 15:25 UTC1h 20m

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

Mode-S 3C66AB frequently asked

What is Mode-S code 3C66AB?
3C66AB is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIUK.
Where is Mode-S 3C66AB registered?
Mode-S code 3C66AB is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66AB broadcasting right now?
Yes. Mode-S 3C66AB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66AB, octal 17063253, decimal 3,958,443.
What flights does 3C66AB operate?
Mode-S 3C66AB has broadcast 20 distinct callsigns, including DLH68W, DLH44U, DLH1913, DLH7JE, DLH2RX.