sensors Mode-S transponder

3C6566

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIKF · AIRBUS A-330-300

Hex
3C6566
Octal
17062546
Decimal
3,958,118
Country
DE
Tail
D-AIKF
Type
A333
Transponder active on ground
Flights observed
136
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 20:05 UTC

Last known position

Most recent position reported by Mode-S 3C6566.

Country allocation

The ICAO 24-bit address 3C6566 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
OCN642 O Air 12 2026-07-26
OCN51 - 12 2026-07-16
OCN69 - 11 2026-07-15
OCN68 - 11 2026-07-14
OCN75 O Air 9 2026-05-29
OCN659 O Air 9 2026-07-19
OCN50 - 9 2026-07-16
OCN74 - 8 2026-07-15
OCN12 O Air 6 2026-07-23
OCN11 O Air 6 2026-07-22
OCN77 O Air 4 2026-05-30
OCN76 O Air 4 2026-05-30
OCN539 O Air 4 2026-06-10
OCN52 O Air 4 2026-06-10
OCN133 O Air 4 2026-07-26
OCN132W O Air 4 2026-07-24
OCN2 O Air 3 2026-05-28
OCN135K - 3 2026-07-24
OCN3 O Air 2 2026-05-28
OCN137 - 2 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 OCN642 FRA → TPA Jul 26, 10:10 UTCJul 26, 20:00 UTC9h 50m
2026-07-26 OCN133 WDH → FRA Jul 26, 00:40 UTCJul 26, 03:10 UTC2h 30m
2026-07-24 OCN132W FRA → WDH Jul 24, 20:25 UTCJul 24, 22:05 UTC1h 40m
2026-07-24 OCN135K - Jul 24, 13:10 UTCJul 24, 16:50 UTC3h 40m
2026-07-23 OCN135K - Jul 23, 19:35 UTCJul 24, 16:50 UTC21h 15m
2026-07-23 OCN135K FRA → FRA Jul 23, 18:10 UTCJul 24, 16:50 UTC22h 40m
2026-07-23 OCN12 LAS → FRA Jul 23, 04:25 UTCJul 23, 14:25 UTC10h 0m
2026-07-22 OCN11 CUN → FRA Jul 22, 12:00 UTCJul 22, 23:05 UTC11h 5m
2026-07-21 OCN12 - Jul 21, 04:30 UTCJul 21, 14:40 UTC10h 10m
2026-07-20 OCN11 FRA → LAS Jul 20, 12:20 UTCJul 20, 23:35 UTC11h 15m
2026-07-19 OCN659 TPA → FRA Jul 19, 22:10 UTCJul 20, 07:25 UTC9h 15m
2026-07-19 OCN642 FRA → TPA Jul 19, 09:55 UTCJul 19, 19:30 UTC9h 35m
2026-07-16 OCN51 - Jul 16, 22:25 UTCJul 17, 05:55 UTC7h 30m
2026-07-16 OCN51 PHL → PHL Jul 16, 22:10 UTCJul 16, 22:15 UTC5m
2026-07-16 OCN50 FRA → PHL Jul 16, 11:45 UTCJul 16, 20:05 UTC8h 20m
2026-07-16 OCN731 - Jul 16, 01:15 UTCJul 16, 07:15 UTC6h 0m
2026-07-15 OCN74 - Jul 15, 16:45 UTCJul 15, 23:25 UTC6h 40m
2026-07-15 OCN69 MCO → FRA Jul 15, 02:45 UTCJul 15, 11:45 UTC9h 0m
2026-07-14 OCN068 TPA → MCO Jul 14, 23:45 UTCJul 15, 00:15 UTC30m
2026-07-14 OCN68 FRA → TPA Jul 14, 12:05 UTCJul 14, 22:30 UTC10h 25m
2026-07-13 OCN12 LAS → FRA Jul 13, 04:25 UTCJul 13, 14:50 UTC10h 25m
2026-07-12 OCN11 FRA → LAS Jul 12, 12:10 UTCJul 12, 23:10 UTC11h 0m
2026-07-11 OCN659 TPA → FRA Jul 11, 22:25 UTCJul 12, 07:05 UTC8h 40m
2026-07-11 OCN642 FRA → TPA Jul 11, 09:50 UTCJul 11, 19:30 UTC9h 40m
2026-07-10 OCN51 PHL → FRA Jul 10, 22:55 UTCJul 11, 05:55 UTC7h 0m
2026-07-10 OCN50 FRA → PHL Jul 10, 11:45 UTCJul 10, 20:15 UTC8h 30m
2026-07-10 OCN133 - Jul 10, 00:35 UTCJul 10, 03:05 UTC2h 30m
2026-07-08 OCN132W - Jul 8, 20:25 UTCJul 8, 22:30 UTC2h 5m
2026-07-08 OCN137 - Jul 8, 13:10 UTCJul 8, 16:55 UTC3h 45m
2026-07-07 OCN137 FRA → FRA Jul 7, 18:00 UTCJul 8, 16:55 UTC22h 55m
2026-06-25 OCN4087 - Jun 25, 15:20 UTCJun 25, 16:20 UTC1h 0m
2026-06-11 OCN4086 - Jun 11, 13:40 UTCJun 11, 14:35 UTC55m
2026-06-10 OCN539 MSP → FRA Jun 10, 22:50 UTCJun 11, 06:50 UTC8h 0m
2026-06-10 OCN52 FRA → MSP Jun 10, 11:00 UTCJun 10, 19:45 UTC8h 45m
2026-06-08 OCN659 TPA → FRA Jun 8, 22:05 UTCJun 9, 06:55 UTC8h 50m
2026-06-08 OCN642 FRA → TPA Jun 8, 09:50 UTCJun 8, 19:15 UTC9h 25m
2026-06-06 OCN659 TPA → FRA Jun 6, 22:00 UTCJun 7, 06:50 UTC8h 50m
2026-06-06 OCN642 FRA → TPA Jun 6, 09:50 UTCJun 6, 19:30 UTC9h 40m
2026-06-05 OCN539 MSP → FRA Jun 5, 21:25 UTCJun 6, 05:25 UTC8h 0m
2026-06-05 OCN52 FRA → MSP Jun 5, 09:50 UTCJun 5, 18:40 UTC8h 50m
2026-06-05 OCN51 YHZ → FRA Jun 5, 03:05 UTCJun 5, 05:05 UTC2h 0m
2026-06-04 OCN51 YHZ → FRA Jun 4, 21:55 UTCJun 4, 23:40 UTC1h 45m
2026-06-04 OCN50 FRA → PHL Jun 4, 11:45 UTCJun 4, 20:00 UTC8h 15m
2026-06-03 OCN69 MCO → FRA Jun 3, 00:00 UTCJun 3, 07:55 UTC7h 55m
2026-06-02 OCN68 FRA → MCO Jun 2, 12:25 UTCJun 2, 21:35 UTC9h 10m
2026-06-01 OCN539 MSP → FRA Jun 1, 21:20 UTCJun 2, 05:55 UTC8h 35m
2026-06-01 OCN52 FRA → MSP Jun 1, 10:15 UTCJun 1, 18:30 UTC8h 15m
2026-05-30 OCN77 YYC → FRA May 30, 23:25 UTCMay 30, 23:55 UTC30m
2026-05-30 OCN76 FRA → YYC May 30, 12:30 UTCMay 30, 21:20 UTC8h 50m
2026-05-29 OCN75 YHZ → FRA May 29, 23:15 UTCMay 30, 05:15 UTC6h 0m

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

Mode-S 3C6566 frequently asked

What is Mode-S code 3C6566?
3C6566 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIKF.
Where is Mode-S 3C6566 registered?
Mode-S code 3C6566 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6566 broadcasting right now?
Mode-S 3C6566 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 3C6566, octal 17062546, decimal 3,958,118.
What flights does 3C6566 operate?
Mode-S 3C6566 has broadcast 20 distinct callsigns, including OCN642, OCN51, OCN69, OCN68, OCN75.