Apparatus

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sensors Mode-S transponder

3C66E8

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIWH · AIRBUS A-320

Hex
3C66E8
Octal
17063350
Decimal
3,958,504
Country
DE
Tail
D-AIWH
Type
A320
No current signal · last broadcast 3h ago
Flights observed
277
Distinct callsigns
20
Country
DE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 3C66E8.

Country allocation

The ICAO 24-bit address 3C66E8 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
OCN75M - 14 2026-07-13
OCN5Q O Air 14 2026-07-13
OCN1RK - 14 2026-07-05
OCN8FE - 11 2026-07-07
OCN4WJ - 11 2026-07-07
OCN2Y O Air 10 2026-07-05
OCN8NT O Air 7 2026-06-28
OCN6NH O Air 7 2026-07-03
OCN4EK - 7 2026-06-24
OCN3PH - 7 2026-06-27
OCN3EL O Air 7 2026-06-28
OCN2WK - 7 2026-06-24
OCN1TN - 7 2026-06-26
OCN6GP - 6 2026-07-08
OCN5MC - 6 2026-07-08
OCN515 - 6 2026-07-03
OCN3HT - 6 2026-06-20
OCN2B - 6 2026-07-08
OCN2SD - 5 2026-06-22
OCN9ZF - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OCN1343 - Jul 14, 12:15 UTCJul 14, 14:45 UTC2h 30m
2026-07-14 OCN3GB FRA → BOO Jul 14, 08:20 UTCJul 14, 11:05 UTC2h 45m
2026-07-13 OCN5Q FNC → FNC Jul 13, 14:25 UTCJul 13, 18:15 UTC3h 50m
2026-07-13 OCN75M FRA → LCA Jul 13, 09:40 UTCJul 13, 13:00 UTC3h 20m
2026-07-12 OCN5Q FNC → FNC Jul 12, 14:40 UTCJul 12, 18:30 UTC3h 50m
2026-07-12 OCN75M - Jul 12, 10:10 UTCJul 12, 13:25 UTC3h 15m
2026-07-11 OCN3ME - Jul 11, 15:25 UTCJul 11, 18:15 UTC2h 50m
2026-07-11 OCN7YZ - Jul 11, 11:10 UTCJul 11, 13:50 UTC2h 40m
2026-07-11 OCN34D - Jul 11, 06:35 UTCJul 11, 09:05 UTC2h 30m
2026-07-11 OCN1408 - Jul 11, 03:30 UTCJul 11, 05:31 UTC2h 0m
2026-07-10 OCN6QV - Jul 10, 16:30 UTCJul 10, 19:00 UTC2h 30m
2026-07-10 OCN39T FRA → EFL Jul 10, 13:30 UTCJul 10, 15:35 UTC2h 5m
2026-07-10 OCN517 PMI → FRA Jul 10, 10:10 UTCJul 10, 12:00 UTC1h 50m
2026-07-10 OCN1EJ FRA → PMI Jul 10, 07:20 UTCJul 10, 09:00 UTC1h 40m
2026-07-09 OCN2165 OPO → FRA Jul 9, 14:10 UTCJul 9, 16:25 UTC2h 15m
2026-07-09 OCN4QL FRA → OPO Jul 9, 10:45 UTCJul 9, 13:00 UTC2h 15m
2026-07-09 OCN34D - Jul 9, 06:30 UTCJul 9, 08:55 UTC2h 25m
2026-07-09 OCN1408 - Jul 9, 03:20 UTCJul 9, 05:20 UTC2h 0m
2026-07-08 OCN5MC - Jul 8, 15:50 UTCJul 8, 17:40 UTC1h 50m
2026-07-08 OCN2B FRA → DBV Jul 8, 13:30 UTCJul 8, 15:00 UTC1h 30m
2026-07-08 OCN6GP - Jul 8, 10:55 UTCJul 8, 12:15 UTC1h 20m
2026-07-08 OCN910 - Jul 8, 08:55 UTCJul 8, 09:55 UTC1h 0m
2026-07-07 OCN8FE - Jul 7, 12:10 UTCJul 7, 14:05 UTC1h 55m
2026-07-07 OCN4WJ - Jul 7, 09:10 UTCJul 7, 10:50 UTC1h 40m
2026-07-07 OCN1001 - Jul 7, 06:50 UTCJul 7, 07:25 UTC35m
2026-07-07 OCN1000 FRA → MUC Jul 7, 05:10 UTCJul 7, 05:45 UTC35m
2026-07-06 OCN5Q FNC → FNC Jul 6, 14:15 UTCJul 6, 18:05 UTC3h 50m
2026-07-06 OCN75M - Jul 6, 09:50 UTCJul 6, 13:05 UTC3h 15m
2026-07-06 OCN1001 MUC → FRA Jul 6, 07:05 UTCJul 6, 07:40 UTC35m
2026-07-06 OCN1000 FRA → MUC Jul 6, 05:25 UTCJul 6, 06:05 UTC40m
2026-07-05 OCN2Y FNC → FRA Jul 5, 16:50 UTCJul 5, 19:45 UTC2h 55m
2026-07-05 OCN2Y FNC → FRA Jul 5, 16:05 UTCJul 5, 16:15 UTC10m
2026-07-05 OCN1RK - Jul 5, 14:50 UTCJul 5, 14:55 UTC5m
2026-07-05 OCN1RK - Jul 5, 11:15 UTCJul 5, 14:05 UTC2h 50m
2026-07-05 OCN2JR BOJ → FRA Jul 5, 06:25 UTCJul 5, 09:00 UTC2h 35m
2026-07-05 OCN6VT FRA → BOJ Jul 5, 03:20 UTCJul 5, 05:25 UTC2h 5m
2026-07-04 OCN34B ACE → FRA Jul 4, 17:45 UTCJul 4, 20:45 UTC3h 0m
2026-07-04 OCN34B ACE → FRA Jul 4, 16:55 UTCJul 4, 17:15 UTC20m
2026-07-04 OCN7AK FRA → ACE Jul 4, 11:45 UTCJul 4, 15:45 UTC4h 0m
2026-07-04 OCN4YZ - Jul 4, 06:30 UTCJul 4, 09:05 UTC2h 35m
2026-07-04 OCN2KC - Jul 4, 03:05 UTCJul 4, 05:10 UTC2h 5m
2026-07-03 OCN515 - Jul 3, 18:05 UTCJul 3, 20:05 UTC2h 0m
2026-07-03 OCN6NH PMI → MUC Jul 3, 15:05 UTCJul 3, 16:55 UTC1h 50m
2026-07-03 OCN2DE XRY → FRA Jul 3, 11:05 UTCJul 3, 13:50 UTC2h 45m
2026-07-03 OCN3RB FRA → XRY Jul 3, 07:30 UTCJul 3, 10:00 UTC2h 30m
2026-07-02 OCN8FC JTR → FRA Jul 2, 15:50 UTCJul 2, 18:35 UTC2h 45m
2026-07-02 OCN6HP FRA → JTR Jul 2, 12:00 UTCJul 2, 14:35 UTC2h 35m
2026-07-02 OCN4ES - Jul 2, 07:25 UTCJul 2, 10:05 UTC2h 40m
2026-07-02 OCN9ZF - Jul 2, 03:05 UTCJul 2, 05:35 UTC2h 30m
2026-07-01 OCN519 PMI → FRA Jul 1, 15:45 UTCJul 1, 18:00 UTC2h 15m

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

Mode-S 3C66E8 frequently asked

What is Mode-S code 3C66E8?
3C66E8 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIWH.
Where is Mode-S 3C66E8 registered?
Mode-S code 3C66E8 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66E8 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66E8, octal 17063350, decimal 3,958,504.
What flights does 3C66E8 operate?
Mode-S 3C66E8 has broadcast 20 distinct callsigns, including OCN75M, OCN5Q, OCN1RK, OCN8FE, OCN4WJ.