sensors Mode-S transponder

39F49C

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-JEBH · TOMARK Viper

Hex
39F49C
Octal
16372234
Decimal
3,798,172
Country
FR
Tail
F-JEBH
Type
SD4
No current signal · last broadcast 8h ago
Flights observed
29
Distinct callsigns
1
Country
FR
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 39F49C.

Country allocation

The ICAO 24-bit address 39F49C 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
FJEBH - 29 2026-06-05

Recent flights last 29

DateFlightRouteTakeoffLandingDuration
2026-06-05 FJEBH - Jun 5, 07:40 UTCJun 5, 07:55 UTC15m
2026-06-01 FJEBH - Jun 1, 10:05 UTCJun 1, 11:00 UTC55m
2026-05-29 FJEBH - May 29, 08:15 UTCMay 29, 08:45 UTC30m
2026-05-28 FJEBH - May 28, 07:10 UTCMay 28, 07:35 UTC25m
2026-05-25 FJEBH - May 25, 15:15 UTCMay 25, 16:00 UTC45m
2026-05-25 FJEBH - May 25, 09:40 UTCMay 25, 10:10 UTC30m
2026-05-23 FJEBH - May 23, 14:30 UTCMay 23, 16:05 UTC1h 35m
2026-05-22 FJEBH - May 22, 08:15 UTCMay 22, 09:50 UTC1h 35m
2026-05-18 FJEBH - May 18, 14:50 UTCMay 18, 15:10 UTC20m
2026-05-16 FJEBH - May 16, 13:31 UTCMay 16, 14:16 UTC45m
2026-05-15 FJEBH - May 15, 07:40 UTCMay 15, 08:05 UTC25m
2026-05-11 FJEBH - May 11, 13:30 UTCMay 11, 14:15 UTC45m
2026-05-09 FJEBH - May 9, 14:25 UTCMay 9, 14:50 UTC25m
2026-05-08 FJEBH - May 8, 14:35 UTCMay 8, 15:25 UTC50m
2026-05-07 FJEBH - May 7, 08:05 UTCMay 7, 08:35 UTC30m
2026-05-06 FJEBH - May 6, 14:25 UTCMay 6, 15:10 UTC45m
2026-05-06 FJEBH - May 6, 13:10 UTCMay 6, 13:45 UTC35m
2026-05-04 FJEBH - May 4, 13:30 UTCMay 4, 13:50 UTC20m
2026-05-02 FJEBH - May 2, 15:35 UTCMay 2, 16:00 UTC25m
2026-05-02 FJEBH - May 2, 10:00 UTCMay 2, 10:25 UTC25m
2026-05-02 FJEBH - May 2, 08:50 UTCMay 2, 09:10 UTC20m
2026-04-27 FJEBH - Apr 27, 15:50 UTCApr 27, 16:20 UTC30m
2026-04-27 FJEBH - Apr 27, 13:25 UTCApr 27, 14:20 UTC55m
2026-04-21 FJEBH - Apr 21, 09:50 UTCApr 21, 10:10 UTC20m
2026-04-21 FJEBH - Apr 21, 08:05 UTCApr 21, 08:55 UTC50m
2026-04-20 FJEBH - Apr 20, 13:30 UTCApr 20, 14:00 UTC30m
2026-04-18 FJEBH - Apr 18, 14:25 UTCApr 18, 14:55 UTC30m
2026-04-14 FJEBH - Apr 14, 08:05 UTCApr 14, 08:20 UTC15m
2026-04-13 FJEBH - Apr 13, 12:40 UTCApr 13, 13:15 UTC35m

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

Mode-S 39F49C frequently asked

What is Mode-S code 39F49C?
39F49C is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-JEBH.
Where is Mode-S 39F49C registered?
Mode-S code 39F49C is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39F49C broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39F49C, octal 16372234, decimal 3,798,172.
What flights does 39F49C operate?
Mode-S 39F49C has broadcast 1 distinct callsign, including FJEBH.