Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

39C475

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HRDV · BRM AERO Bristell B23

Hex
39C475
Octal
16342165
Decimal
3,785,845
Country
FR
Tail
F-HRDV
Type
BR23
No current signal · last broadcast 3d ago
Flights observed
156
Distinct callsigns
1
Country
FR
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 39C475.

Country allocation

The ICAO 24-bit address 39C475 falls within the block assigned to France (FR) by ICAO Annex 10, Volume III. Every aircraft registered in France 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 1 distinct

Callsign Airline Flights Last seen
FHRDV - 156 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 FHRDV - Jul 11, 07:30 UTCJul 11, 09:45 UTC2h 15m
2026-07-10 FHRDV - Jul 10, 17:30 UTCJul 10, 19:25 UTC1h 55m
2026-07-10 FHRDV - Jul 10, 09:45 UTCJul 10, 10:30 UTC45m
2026-07-10 FHRDV - Jul 10, 07:00 UTCJul 10, 08:35 UTC1h 35m
2026-07-09 FHRDV - Jul 9, 14:25 UTCJul 9, 16:30 UTC2h 5m
2026-07-09 FHRDV - Jul 9, 08:35 UTCJul 9, 10:15 UTC1h 40m
2026-07-08 FHRDV - Jul 8, 10:50 UTCJul 8, 11:50 UTC1h 0m
2026-07-08 FHRDV - Jul 8, 09:20 UTCJul 8, 09:55 UTC35m
2026-07-07 FHRDV - Jul 7, 17:45 UTCJul 7, 18:10 UTC25m
2026-07-07 FHRDV - Jul 7, 15:15 UTCJul 7, 16:00 UTC45m
2026-07-07 FHRDV - Jul 7, 11:25 UTCJul 7, 12:15 UTC50m
2026-07-07 FHRDV - Jul 7, 09:20 UTCJul 7, 09:50 UTC30m
2026-07-07 FHRDV - Jul 7, 08:00 UTCJul 7, 08:40 UTC40m
2026-07-07 FHRDV - Jul 7, 06:10 UTCJul 7, 07:10 UTC1h 0m
2026-07-06 FHRDV - Jul 6, 08:40 UTCJul 6, 10:10 UTC1h 30m
2026-07-05 FHRDV - Jul 5, 16:05 UTCJul 5, 17:05 UTC1h 0m
2026-07-05 FHRDV - Jul 5, 08:55 UTCJul 5, 10:05 UTC1h 10m
2026-07-04 FHRDV - Jul 4, 17:10 UTCJul 4, 18:20 UTC1h 10m
2026-07-04 FHRDV - Jul 4, 14:10 UTCJul 4, 14:55 UTC45m
2026-07-04 FHRDV - Jul 4, 09:55 UTCJul 4, 11:00 UTC1h 5m
2026-07-01 FHRDV - Jul 1, 18:55 UTCJul 1, 19:35 UTC40m
2026-07-01 FHRDV - Jul 1, 17:30 UTCJul 1, 18:25 UTC55m
2026-07-01 FHRDV TNF → TNF Jul 1, 14:20 UTCJul 1, 14:55 UTC35m
2026-06-30 FHRDV - Jun 30, 17:05 UTCJun 30, 17:50 UTC45m
2026-06-30 FHRDV - Jun 30, 15:30 UTCJun 30, 16:05 UTC35m
2026-06-30 FHRDV TNF → TNF Jun 30, 13:20 UTCJun 30, 13:50 UTC30m
2026-06-30 FHRDV TNF → TNF Jun 30, 11:00 UTCJun 30, 11:20 UTC20m
2026-06-30 FHRDV - Jun 30, 08:45 UTCJun 30, 09:40 UTC55m
2026-06-30 FHRDV - Jun 30, 07:25 UTCJun 30, 07:55 UTC30m
2026-06-29 FHRDV - Jun 29, 09:40 UTCJun 29, 10:15 UTC35m
2026-06-28 FHRDV - Jun 28, 08:59 UTCJun 28, 09:45 UTC45m
2026-06-28 FHRDV - Jun 28, 07:34 UTCJun 28, 08:09 UTC35m
2026-06-24 FHRDV - Jun 24, 10:55 UTCJun 24, 12:40 UTC1h 45m
2026-06-23 FHRDV - Jun 23, 19:00 UTCJun 23, 19:39 UTC40m
2026-06-22 FHRDV - Jun 22, 07:04 UTCJun 22, 07:40 UTC35m
2026-06-20 FHRDV - Jun 20, 17:24 UTCJun 20, 18:40 UTC1h 15m
2026-06-20 FHRDV - Jun 20, 08:14 UTCJun 20, 09:29 UTC1h 15m
2026-06-17 FHRDV - Jun 17, 18:55 UTCJun 17, 20:15 UTC1h 20m
2026-06-17 FHRDV - Jun 17, 17:15 UTCJun 17, 18:15 UTC1h 0m
2026-06-17 FHRDV - Jun 17, 15:25 UTCJun 17, 16:10 UTC45m
2026-06-17 FHRDV - Jun 17, 11:00 UTCJun 17, 11:50 UTC50m
2026-06-16 FHRDV - Jun 16, 17:00 UTCJun 16, 17:59 UTC1h 0m
2026-06-16 FHRDV - Jun 16, 13:00 UTCJun 16, 14:05 UTC1h 5m
2026-06-15 FHRDV - Jun 15, 09:25 UTCJun 15, 10:45 UTC1h 20m
2026-06-14 FHRDV - Jun 14, 18:15 UTCJun 14, 18:45 UTC30m
2026-06-14 FHRDV - Jun 14, 15:35 UTCJun 14, 16:00 UTC25m
2026-06-14 FHRDV - Jun 14, 14:00 UTCJun 14, 14:40 UTC40m
2026-06-13 FHRDV - Jun 13, 17:35 UTCJun 13, 18:45 UTC1h 10m
2026-06-13 FHRDV - Jun 13, 13:45 UTCJun 13, 14:25 UTC40m
2026-06-12 FHRDV - Jun 12, 16:35 UTCJun 12, 17:05 UTC30m

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 F-HRDV page for operator, model, and routing details .

Mode-S 39C475 frequently asked

What is Mode-S code 39C475?
39C475 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HRDV.
Where is Mode-S 39C475 registered?
Mode-S code 39C475 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39C475 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39C475, octal 16342165, decimal 3,785,845.
What flights does 39C475 operate?
Mode-S 39C475 has broadcast 1 distinct callsign, including FHRDV.