Apparatus

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sensors Mode-S transponder

3C66E7

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIWG · AIRBUS A-320

Hex
3C66E7
Octal
17063347
Decimal
3,958,503
Country
DE
Tail
D-AIWG
Type
A320
No current signal · last broadcast Jul 26, 14:40 UTC
Flights observed
355
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 14:40 UTC

Last known position

Most recent position reported by Mode-S 3C66E7.

Country allocation

The ICAO 24-bit address 3C66E7 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
OCN1RK - 19 2026-07-14
OCN2Y O Air 17 2026-07-14
OCN5MC - 13 2026-07-25
OCN5AN O Air 13 2026-05-24
OCN2B O Air 13 2026-07-25
OCN4ES - 10 2026-07-12
OCN9ZF - 9 2026-07-12
OCN9DY - 8 2026-05-07
OCN8FE - 8 2026-07-26
OCN75M - 8 2026-06-21
OCN6NH O Air 8 2026-07-17
OCN5Q O Air 8 2026-06-21
OCN515 - 8 2026-07-17
OCN4WJ O Air 8 2026-07-26
OCN3RB - 8 2026-07-17
OCN2DE O Air 8 2026-07-17
OCN1408 - 8 2026-07-23
OCN6GP O Air 7 2026-07-26
OCN34D - 7 2026-07-23
OCN8NT O Air 6 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 OCN8FE - Jul 26, 12:40 UTCJul 26, 14:30 UTC1h 50m
2026-07-26 OCN4WJ FRA → PMI Jul 26, 09:50 UTCJul 26, 11:30 UTC1h 40m
2026-07-26 OCN6GP ZAD → FRA Jul 26, 05:50 UTCJul 26, 07:00 UTC1h 11m
2026-07-26 OCN910 FRA → ZAD Jul 26, 03:30 UTCJul 26, 04:30 UTC1h 0m
2026-07-25 OCN519 PMI → FRA Jul 25, 16:00 UTCJul 25, 17:50 UTC1h 50m
2026-07-25 OCN518 FRA → PMI Jul 25, 13:00 UTCJul 25, 14:50 UTC1h 50m
2026-07-25 OCN5MC DBV → FRA Jul 25, 09:50 UTCJul 25, 11:30 UTC1h 40m
2026-07-25 OCN2B RAK → FRA Jul 25, 07:20 UTCJul 25, 08:50 UTC1h 30m
2026-07-24 OCN6QV - Jul 24, 17:05 UTCJul 24, 19:30 UTC2h 25m
2026-07-24 OCN39T FRA → EFL Jul 24, 13:50 UTCJul 24, 15:50 UTC2h 0m
2026-07-24 OCN517 PMI → FRA Jul 24, 10:10 UTCJul 24, 12:00 UTC1h 50m
2026-07-24 OCN1EJ FRA → PMI Jul 24, 07:15 UTCJul 24, 08:55 UTC1h 40m
2026-07-23 OCN2165 - Jul 23, 15:10 UTCJul 23, 17:35 UTC2h 25m
2026-07-23 OCN4QL FRA → OPO Jul 23, 11:40 UTCJul 23, 14:00 UTC2h 20m
2026-07-23 OCN34D - Jul 23, 06:40 UTCJul 23, 09:00 UTC2h 20m
2026-07-23 OCN1408 - Jul 23, 03:25 UTCJul 23, 05:30 UTC2h 5m
2026-07-22 OCN5MC - Jul 22, 16:00 UTCJul 22, 17:45 UTC1h 45m
2026-07-22 OCN2B RAK → FRA Jul 22, 13:30 UTCJul 22, 15:00 UTC1h 30m
2026-07-22 OCN6GP ZAD → FRA Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-21 OCN8FC JTR → FRA Jul 21, 15:05 UTCJul 21, 18:00 UTC2h 55m
2026-07-21 OCN6HP FRA → JTR Jul 21, 11:25 UTCJul 21, 13:50 UTC2h 25m
2026-07-20 OCN6YX - Jul 20, 18:05 UTCJul 20, 19:00 UTC55m
2026-07-20 OCN600 FRA → CDG Jul 20, 16:05 UTCJul 20, 16:55 UTC50m
2026-07-20 OCN6GP ZAD → FRA Jul 20, 13:25 UTCJul 20, 14:35 UTC1h 10m
2026-07-20 OCN910 FRA → ZAD Jul 20, 11:10 UTCJul 20, 12:15 UTC1h 5m
2026-07-20 OCN4081 - Jul 20, 05:55 UTCJul 20, 06:35 UTC40m
2026-07-19 OCN424H LCA → MUC Jul 19, 17:35 UTCJul 19, 20:55 UTC3h 20m
2026-07-19 OCN5EG - Jul 19, 13:25 UTCJul 19, 16:25 UTC3h 0m
2026-07-19 OCN41B IBZ → MUC Jul 19, 10:15 UTCJul 19, 12:10 UTC1h 55m
2026-07-19 OCN5JU - Jul 19, 07:00 UTCJul 19, 09:00 UTC2h 0m
2026-07-19 OCN4080 MUC → FRA Jul 19, 04:00 UTCJul 19, 04:45 UTC45m
2026-07-18 OCN34B ACE → FRA Jul 18, 17:15 UTCJul 18, 20:50 UTC3h 35m
2026-07-18 OCN7AK FRA → ACE Jul 18, 11:40 UTCJul 18, 15:30 UTC3h 50m
2026-07-18 OCN4YZ - Jul 18, 07:25 UTCJul 18, 09:10 UTC1h 45m
2026-07-18 OCN2KC - Jul 18, 03:05 UTCJul 18, 05:15 UTC2h 10m
2026-07-17 OCN515 - Jul 17, 19:35 UTCJul 17, 21:25 UTC1h 50m
2026-07-17 OCN6NH PMI → MUC Jul 17, 15:40 UTCJul 17, 17:30 UTC1h 50m
2026-07-17 OCN2DE XRY → FRA Jul 17, 11:55 UTCJul 17, 14:20 UTC2h 25m
2026-07-17 OCN3RB - Jul 17, 07:25 UTCJul 17, 10:20 UTC2h 55m
2026-07-16 OCN601 - Jul 16, 18:15 UTCJul 16, 18:59 UTC45m
2026-07-16 OCN600 FRA → CDG Jul 16, 16:05 UTCJul 16, 17:05 UTC1h 0m
2026-07-16 OCN5MC DBV → FRA Jul 16, 13:00 UTCJul 16, 14:45 UTC1h 45m
2026-07-16 OCN2B FRA → DBV Jul 16, 10:35 UTCJul 16, 12:00 UTC1h 25m
2026-07-15 OCN519 PMI → FRA Jul 15, 16:20 UTCJul 15, 18:05 UTC1h 45m
2026-07-15 OCN518 FRA → PMI Jul 15, 12:55 UTCJul 15, 14:45 UTC1h 50m
2026-07-15 OCN215 - Jul 15, 09:30 UTCJul 15, 11:25 UTC1h 55m
2026-07-15 OCN14M FRA → MIR Jul 15, 05:30 UTCJul 15, 07:35 UTC2h 5m
2026-07-14 OCN2Y FNC → FRA Jul 14, 15:05 UTCJul 14, 18:35 UTC3h 30m
2026-07-14 OCN1RK - Jul 14, 14:00 UTCJul 14, 14:10 UTC10m
2026-07-14 OCN1RK - Jul 14, 10:10 UTCJul 14, 13:25 UTC3h 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-AIWG page for operator, model, and routing details .

Mode-S 3C66E7 frequently asked

What is Mode-S code 3C66E7?
3C66E7 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIWG.
Where is Mode-S 3C66E7 registered?
Mode-S code 3C66E7 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66E7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66E7, octal 17063347, decimal 3,958,503.
What flights does 3C66E7 operate?
Mode-S 3C66E7 has broadcast 20 distinct callsigns, including OCN1RK, OCN2Y, OCN5MC, OCN5AN, OCN2B.