Apparatus

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sensors Mode-S transponder

3981EB

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HAPL · ATR-72-500

Hex
3981EB
Octal
16300753
Decimal
3,768,811
Country
FR
Tail
F-HAPL
Type
AT75
No current signal · last broadcast 3d ago
Flights observed
109
Distinct callsigns
20
Country
FR
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 3981EB.

Country allocation

The ICAO 24-bit address 3981EB 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 20 distinct

Callsign Airline Flights Last seen
CLG76CJ Chalair Aviation 21 2026-07-26
CLG75TG Chalair Aviation 21 2026-07-26
CLG72CJ Chalair Aviation 17 2026-07-23
CLG71TG Chalair Aviation 17 2026-07-23
CLG74CJ Chalair Aviation 5 2026-07-24
CLG73TG Chalair Aviation 5 2026-07-24
CLG1936 Chalair Aviation 2 2026-07-10
CLG1935 Chalair Aviation 2 2026-07-10
CLG1932 - 2 2026-07-10
CLG1931 - 2 2026-07-10
FHAPL - 1 2026-06-12
CLG907V - 1 2026-06-20
CLG907U - 1 2026-06-19
CLG907R - 1 2026-06-18
CLG907Q - 1 2026-06-18
CLG907P - 1 2026-06-18
CLG907N Chalair Aviation 1 2026-07-18
CLG907M Chalair Aviation 1 2026-07-18
CLG907E - 1 2026-06-30
CLG5056 - 1 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CLG76CJ LYS → LIG Jul 26, 18:45 UTCJul 26, 19:25 UTC40m
2026-07-26 CLG75TG LIG → LYS Jul 26, 16:40 UTCJul 26, 17:20 UTC40m
2026-07-24 CLG74CJ LYS → LIG Jul 24, 14:50 UTCJul 24, 15:35 UTC45m
2026-07-24 CLG73TG LIG → LYS Jul 24, 12:55 UTCJul 24, 13:30 UTC35m
2026-07-23 CLG76CJ LYS → LIG Jul 23, 18:55 UTCJul 23, 19:40 UTC45m
2026-07-23 CLG75TG - Jul 23, 16:55 UTCJul 23, 17:30 UTC35m
2026-07-23 CLG72CJ LYS → LIG Jul 23, 06:40 UTCJul 23, 07:25 UTC45m
2026-07-23 CLG71TG LIG → LYS Jul 23, 04:50 UTCJul 23, 05:40 UTC50m
2026-07-22 CLG76CJ LYS → LIG Jul 22, 18:50 UTCJul 22, 19:35 UTC45m
2026-07-22 CLG75TG - Jul 22, 16:55 UTCJul 22, 17:30 UTC35m
2026-07-21 CLG76CJ LYS → LIG Jul 21, 18:40 UTCJul 21, 19:20 UTC40m
2026-07-21 CLG75TG - Jul 21, 16:45 UTCJul 21, 17:20 UTC35m
2026-07-21 CLG72CJ - Jul 21, 06:35 UTCJul 21, 07:25 UTC50m
2026-07-21 CLG71TG LIG → LYS Jul 21, 04:40 UTCJul 21, 05:20 UTC40m
2026-07-20 CLG76CJ LYS → LIG Jul 20, 18:45 UTCJul 20, 19:25 UTC40m
2026-07-20 CLG75TG - Jul 20, 16:35 UTCJul 20, 17:05 UTC30m
2026-07-20 CLG72CJ - Jul 20, 06:50 UTCJul 20, 07:35 UTC45m
2026-07-20 CLG71TG LIG → LYS Jul 20, 04:35 UTCJul 20, 05:15 UTC40m
2026-07-19 CLG76CJ LYS → LIG Jul 19, 18:55 UTCJul 19, 19:35 UTC40m
2026-07-19 CLG75TG - Jul 19, 16:35 UTCJul 19, 17:10 UTC35m
2026-07-18 CLG907N EBU → LIG Jul 18, 11:20 UTCJul 18, 13:20 UTC2h 0m
2026-07-18 CLG5051 BIQ → LYN Jul 18, 08:25 UTCJul 18, 10:05 UTC1h 40m
2026-07-18 CLG907M LIG → VNE Jul 18, 06:20 UTCJul 18, 06:55 UTC35m
2026-07-17 CLG74CJ LYS → LIG Jul 17, 14:50 UTCJul 17, 15:35 UTC45m
2026-07-17 CLG73TG LIG → LYS Jul 17, 12:55 UTCJul 17, 13:29 UTC35m
2026-07-16 CLG72CJ - Jul 16, 06:35 UTCJul 16, 07:25 UTC50m
2026-07-16 CLG71TG - Jul 16, 04:35 UTCJul 16, 05:10 UTC35m
2026-07-15 CLG76CJ - Jul 15, 19:00 UTCJul 15, 19:45 UTC45m
2026-07-15 CLG75TG - Jul 15, 16:40 UTCJul 15, 17:15 UTC35m
2026-07-15 CLG72CJ - Jul 15, 06:45 UTCJul 15, 07:35 UTC50m
2026-07-15 CLG71TG - Jul 15, 04:50 UTCJul 15, 05:25 UTC35m
2026-07-13 CLG76CJ - Jul 13, 18:50 UTCJul 13, 19:25 UTC35m
2026-07-13 CLG75TG - Jul 13, 16:50 UTCJul 13, 17:25 UTC35m
2026-07-13 CLG72CJ - Jul 13, 06:35 UTCJul 13, 07:10 UTC35m
2026-07-13 CLG71TG - Jul 13, 04:45 UTCJul 13, 05:20 UTC35m
2026-07-12 CLG76CJ - Jul 12, 19:01 UTCJul 12, 19:35 UTC35m
2026-07-12 CLG75TG - Jul 12, 16:50 UTCJul 12, 17:25 UTC35m
2026-07-10 CLG1936 ORY → BVE Jul 10, 18:25 UTCJul 10, 19:45 UTC1h 20m
2026-07-10 CLG1935 BVE → ORY Jul 10, 16:20 UTCJul 10, 17:20 UTC1h 0m
2026-07-10 CLG1954 - Jul 10, 14:00 UTCJul 10, 15:20 UTC1h 20m
2026-07-10 CLG1953 - Jul 10, 10:55 UTCJul 10, 12:10 UTC1h 15m
2026-07-10 CLG1932 - Jul 10, 07:30 UTCJul 10, 08:30 UTC1h 0m
2026-07-10 CLG1931 - Jul 10, 05:15 UTCJul 10, 06:15 UTC1h 0m
2026-07-09 CLG1936 ORY → BVE Jul 9, 19:15 UTCJul 9, 20:10 UTC55m
2026-07-09 CLG1935 BVE → ORY Jul 9, 17:25 UTCJul 9, 18:20 UTC55m
2026-07-09 CLG72CJ - Jul 9, 06:55 UTCJul 9, 07:40 UTC45m
2026-07-09 CLG71TG - Jul 9, 04:35 UTCJul 9, 05:15 UTC40m
2026-07-08 CLG76CJ - Jul 8, 18:55 UTCJul 8, 19:40 UTC45m
2026-07-08 CLG75TG - Jul 8, 16:40 UTCJul 8, 17:15 UTC35m
2026-07-08 CLG72CJ - Jul 8, 06:45 UTCJul 8, 07:35 UTC50m

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

Mode-S 3981EB frequently asked

What is Mode-S code 3981EB?
3981EB is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HAPL.
Where is Mode-S 3981EB registered?
Mode-S code 3981EB is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3981EB 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 3981EB, octal 16300753, decimal 3,768,811.
What flights does 3981EB operate?
Mode-S 3981EB has broadcast 20 distinct callsigns, including CLG76CJ, CLG75TG, CLG72CJ, CLG71TG, CLG74CJ.