sensors Mode-S transponder

3C66E2

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIWB · AIRBUS A-320

Hex
3C66E2
Octal
17063342
Decimal
3,958,498
Country
DE
Tail
D-AIWB
Type
A320
Broadcasting now · callsign OCN5C · 34,050 ft
Flights observed
149
Distinct callsigns
20
Country
DE
Last broadcast
9m ago

Current position

3C66E2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C66E2 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
OCN7MP - 7 2026-05-30
OCN5JU - 7 2026-05-29
OCN5EG - 7 2026-05-27
OCN424H - 7 2026-05-27
OCN3RH - 7 2026-05-30
OCN1L - 7 2026-05-29
OCN7YP - 6 2026-05-28
OCN452 O Air 6 2026-05-28
OCN705 - 5 2026-05-16
OCN2SH - 5 2026-05-16
OCN3AV O Air 4 2026-05-16
OCN2RD - 4 2026-05-15
OCN1WZ - 4 2026-05-14
OCN1NJ - 4 2026-05-17
OCN8LQ - 3 2026-05-15
OCN79D - 3 2026-05-15
OCN6JR - 3 2026-05-16
OCN5W - 3 2026-04-30
OCN324 O Air 3 2026-05-24
OCN219 O Air 3 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 OCN5C KGS → MUC May 30, 18:45 UTCMay 30, 20:30 UTC1h 45m
2026-05-30 OCN7QR HER → FRA May 30, 15:15 UTCMay 30, 17:30 UTC2h 15m
2026-05-30 OCN3RH IBZ → MUC May 30, 12:00 UTCMay 30, 14:05 UTC2h 5m
2026-05-30 OCN7MP - May 30, 09:05 UTCMay 30, 10:55 UTC1h 50m
2026-05-29 OCN3TG - May 29, 16:05 UTCMay 29, 18:30 UTC2h 25m
2026-05-29 OCN3VU - May 29, 12:40 UTCMay 29, 14:45 UTC2h 5m
2026-05-29 OCN1L IBZ → MUC May 29, 08:00 UTCMay 29, 10:05 UTC2h 5m
2026-05-29 OCN5JU MUC → IBZ May 29, 04:50 UTCMay 29, 06:45 UTC1h 55m
2026-05-28 OCN7YP - May 28, 16:45 UTCMay 28, 18:30 UTC1h 45m
2026-05-28 OCN452 MUC → PMI May 28, 13:50 UTCMay 28, 15:30 UTC1h 40m
2026-05-28 DLH1VV BEG → FRA May 28, 09:20 UTCMay 28, 10:35 UTC1h 15m
2026-05-28 DLH6PF FRA → EDI May 28, 07:10 UTCMay 28, 08:15 UTC1h 5m
2026-05-27 OCN424H - May 27, 15:45 UTCMay 27, 18:55 UTC3h 10m
2026-05-27 OCN5EG - May 27, 11:25 UTCMay 27, 14:20 UTC2h 55m
2026-05-27 OCN47C DJE → MUC May 27, 07:50 UTCMay 27, 10:00 UTC2h 10m
2026-05-27 OCN29K MUC → DJE May 27, 04:24 UTCMay 27, 06:09 UTC1h 45m
2026-05-26 OCN1259 CHQ → MUC May 26, 11:00 UTCMay 26, 13:15 UTC2h 15m
2026-05-26 OCN1258 MUC → CHQ May 26, 07:05 UTCMay 26, 09:29 UTC2h 25m
2026-05-25 OCN3RH - May 25, 17:20 UTCMay 25, 19:15 UTC1h 55m
2026-05-25 OCN7MP MUC → IBZ May 25, 14:10 UTCMay 25, 16:00 UTC1h 50m
2026-05-25 OCN5C KGS → MUC May 25, 10:40 UTCMay 25, 13:00 UTC2h 20m
2026-05-25 OCN7QR HER → FRA May 25, 06:20 UTCMay 25, 08:45 UTC2h 25m
2026-05-24 OCN4RD FUE → MUC May 24, 17:00 UTCMay 24, 21:00 UTC4h 0m
2026-05-24 OCN324 MUC → FUE May 24, 11:35 UTCMay 24, 15:30 UTC3h 55m
2026-05-24 OCN2RM RHO → MUC May 24, 07:40 UTCMay 24, 10:20 UTC2h 40m
2026-05-24 OCN1EP MUC → RHO May 24, 04:00 UTCMay 24, 06:30 UTC2h 30m
2026-05-23 OCN431 MAH → MUC May 23, 18:25 UTCMay 23, 20:00 UTC1h 35m
2026-05-23 OCN6L MUC → MUC May 23, 15:45 UTCMay 23, 17:25 UTC1h 40m
2026-05-23 OCN1307 EVE → MUC May 23, 11:30 UTCMay 23, 14:25 UTC2h 55m
2026-05-23 OCN19D MUC → EVE May 23, 07:20 UTCMay 23, 10:05 UTC2h 45m
2026-05-22 OCN424H - May 22, 17:40 UTCMay 22, 20:50 UTC3h 10m
2026-05-22 OCN5EG - May 22, 13:20 UTCMay 22, 16:25 UTC3h 5m
2026-05-22 OCN1XJ - May 22, 08:30 UTCMay 22, 11:45 UTC3h 15m
2026-05-22 OCN1286 MUC → LCA May 22, 04:30 UTCMay 22, 07:25 UTC2h 55m
2026-05-21 OCN1291 KLX → MUC May 21, 15:55 UTCMay 21, 18:05 UTC2h 10m
2026-05-21 OCN1AK - May 21, 12:40 UTCMay 21, 14:35 UTC1h 55m
2026-05-21 OCN1259 CHQ → MUC May 21, 07:55 UTCMay 21, 10:25 UTC2h 30m
2026-05-21 OCN1258 MUC → CHQ May 21, 04:25 UTCMay 21, 06:35 UTC2h 10m
2026-05-20 OCN7YP - May 20, 16:40 UTCMay 20, 18:40 UTC2h 0m
2026-05-20 OCN452 MUC → PMI May 20, 13:40 UTCMay 20, 15:20 UTC1h 40m
2026-05-20 OCN1L IBZ → MUC May 20, 10:25 UTCMay 20, 12:25 UTC2h 0m
2026-05-20 OCN5JU - May 20, 07:15 UTCMay 20, 09:15 UTC2h 0m
2026-05-19 OCN1259 CHQ → MUC May 19, 10:45 UTCMay 19, 13:10 UTC2h 25m
2026-05-19 OCN1258 MUC → CHQ May 19, 07:00 UTCMay 19, 09:20 UTC2h 20m
2026-05-18 OCN3Z MUC → MUC May 18, 08:45 UTCMay 18, 17:05 UTC8h 20m
2026-05-17 OCN424H - May 17, 17:45 UTCMay 17, 21:10 UTC3h 25m
2026-05-17 OCN5EG - May 17, 13:31 UTCMay 17, 16:20 UTC2h 50m
2026-05-17 OCN1NJ - May 17, 04:05 UTCMay 17, 12:05 UTC8h 0m
2026-05-16 OCN705 - May 16, 17:25 UTCMay 16, 20:20 UTC2h 55m
2026-05-16 OCN705 - May 16, 16:35 UTCMay 16, 16:50 UTC15m

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

Mode-S 3C66E2 frequently asked

What is Mode-S code 3C66E2?
3C66E2 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIWB.
Where is Mode-S 3C66E2 registered?
Mode-S code 3C66E2 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C66E2 broadcasting right now?
Yes. Mode-S 3C66E2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C66E2, octal 17063342, decimal 3,958,498.
What flights does 3C66E2 operate?
Mode-S 3C66E2 has broadcast 20 distinct callsigns, including OCN7MP, OCN5JU, OCN5EG, OCN424H, OCN3RH.