sensors Mode-S transponder

39835D

ICAO 24-bit transponder address · allocated to France

Hex
39835D
Octal
16301535
Decimal
3,769,181
Country
FR
No current signal · last broadcast 2d ago
Flights observed
63
Distinct callsigns
1
Country
FR
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 39835D.

Country allocation

The ICAO 24-bit address 39835D 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
FJLRF - 62 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 FJLRF - Jun 1, 08:35 UTCJun 1, 08:55 UTC20m
2026-05-31 FJLRF - May 31, 10:40 UTCMay 31, 10:55 UTC15m
2026-05-31 FJLRF - May 31, 09:40 UTCMay 31, 09:55 UTC15m
2026-05-31 FJLRF - May 31, 08:45 UTCMay 31, 08:55 UTC10m
2026-05-30 FJLRF - May 30, 15:55 UTCMay 30, 16:05 UTC10m
2026-05-30 FJLRF - May 30, 11:25 UTCMay 30, 12:20 UTC55m
2026-05-30 FJLRF - May 30, 10:30 UTCMay 30, 10:45 UTC15m
2026-05-30 FJLRF - May 30, 08:30 UTCMay 30, 09:05 UTC35m
2026-05-30 FJLRF - May 30, 06:15 UTCMay 30, 06:55 UTC40m
2026-05-29 FJLRF - May 29, 14:10 UTCMay 29, 14:40 UTC30m
2026-05-29 FJLRF - May 29, 12:50 UTCMay 29, 13:25 UTC35m
2026-05-29 FJLRF - May 29, 07:20 UTCMay 29, 08:00 UTC40m
2026-05-29 FJLRF - May 29, 06:15 UTCMay 29, 06:45 UTC30m
2026-05-28 FJLRF - May 28, 13:50 UTCMay 28, 16:20 UTC2h 30m
2026-05-28 FJLRF - May 28, 10:05 UTCMay 28, 11:05 UTC1h 0m
2026-05-28 FJLRF - May 28, 05:45 UTCMay 28, 06:45 UTC1h 0m
2026-05-27 FJLRF - May 27, 08:50 UTCMay 27, 09:00 UTC10m
2026-05-26 FJLRF - May 26, 11:00 UTCMay 26, 11:15 UTC15m
2026-05-25 FJLRF - May 25, 15:15 UTCMay 25, 15:25 UTC10m
2026-05-25 FJLRF - May 25, 11:25 UTCMay 25, 11:40 UTC15m
2026-05-23 FJLRF - May 23, 16:25 UTCMay 23, 16:45 UTC20m
2026-05-23 FJLRF - May 23, 14:55 UTCMay 23, 15:15 UTC20m
2026-05-23 - - May 23, 09:35 UTCMay 23, 09:55 UTC20m
2026-05-23 FJLRF - May 23, 07:45 UTCMay 23, 08:55 UTC1h 10m
2026-05-22 FJLRF - May 22, 16:20 UTCMay 22, 17:40 UTC1h 20m
2026-05-22 FJLRF - May 22, 13:00 UTCMay 22, 13:15 UTC15m
2026-05-22 FJLRF - May 22, 09:20 UTCMay 22, 10:05 UTC45m
2026-05-22 FJLRF - May 22, 07:40 UTCMay 22, 08:15 UTC35m
2026-05-21 FJLRF - May 21, 14:55 UTCMay 21, 15:15 UTC20m
2026-05-21 FJLRF - May 21, 12:25 UTCMay 21, 12:55 UTC30m
2026-05-21 FJLRF - May 21, 09:50 UTCMay 21, 10:20 UTC30m
2026-05-21 FJLRF - May 21, 07:40 UTCMay 21, 08:35 UTC55m
2026-05-16 FJLRF - May 16, 15:55 UTCMay 16, 16:25 UTC30m
2026-05-15 FJLRF - May 15, 13:50 UTCMay 15, 15:05 UTC1h 14m
2026-05-15 FJLRF - May 15, 08:25 UTCMay 15, 08:45 UTC20m
2026-05-14 FJLRF - May 14, 14:55 UTCMay 14, 15:15 UTC20m
2026-05-12 FJLRF - May 12, 17:30 UTCMay 12, 18:05 UTC35m
2026-05-09 FJLRF - May 9, 15:50 UTCMay 9, 16:20 UTC30m
2026-05-09 FJLRF - May 9, 13:35 UTCMay 9, 14:05 UTC30m
2026-05-09 FJLRF - May 9, 08:30 UTCMay 9, 09:05 UTC35m
2026-05-08 FJLRF - May 8, 14:30 UTCMay 8, 14:45 UTC15m
2026-05-08 FJLRF - May 8, 13:05 UTCMay 8, 13:35 UTC30m
2026-05-08 FJLRF - May 8, 12:00 UTCMay 8, 12:10 UTC10m
2026-05-08 FJLRF - May 8, 09:30 UTCMay 8, 10:04 UTC35m
2026-05-07 FJLRF - May 7, 13:20 UTCMay 7, 13:45 UTC25m
2026-05-07 FJLRF - May 7, 09:55 UTCMay 7, 10:30 UTC35m
2026-05-06 FJLRF - May 6, 15:20 UTCMay 6, 15:45 UTC25m
2026-05-06 FJLRF - May 6, 11:15 UTCMay 6, 11:40 UTC25m
2026-05-06 FJLRF - May 6, 10:01 UTCMay 6, 10:15 UTC15m
2026-05-04 FJLRF - May 4, 11:05 UTCMay 4, 11:45 UTC40m

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.

Mode-S 39835D frequently asked

What is Mode-S code 39835D?
39835D is an ICAO 24-bit transponder address. Allocated to France.
Where is Mode-S 39835D registered?
Mode-S code 39835D is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39835D broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39835D, octal 16301535, decimal 3,769,181.
What flights does 39835D operate?
Mode-S 39835D has broadcast 1 distinct callsign, including FJLRF.