sensors Mode-S transponder

399625

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HFRF · BEECH 200 Super King Air

Hex
399625
Octal
16313045
Decimal
3,773,989
Country
FR
Tail
F-HFRF
Type
BE20
No current signal · last broadcast 22d ago
Flights observed
49
Distinct callsigns
10
Country
FR
Last broadcast
22d ago

Last known position

Most recent position reported by Mode-S 399625.

Country allocation

The ICAO 24-bit address 399625 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 10 distinct

Callsign Airline Flights Last seen
ASR161 - 9 2026-06-14
ASR941 - 7 2026-05-03
ASR263 - 7 2026-06-21
ASR252 - 7 2026-05-17
ASR251 - 5 2026-05-10
ASR245 - 4 2026-04-15
ASR249 - 3 2026-04-26
ASR246 - 3 2026-04-17
ASR248 - 2 2026-04-22
ASR247 - 2 2026-04-19

Recent flights last 49

DateFlightRouteTakeoffLandingDuration
2026-06-21 ASR263 - Jun 21, 16:25 UTCJun 21, 17:15 UTC50m
2026-06-21 ASR263 - Jun 21, 12:10 UTCJun 21, 15:19 UTC3h 10m
2026-06-20 ASR263 ANR → ANR Jun 20, 12:45 UTCJun 20, 16:00 UTC3h 15m
2026-06-19 ASR263 - Jun 19, 12:44 UTCJun 19, 15:49 UTC3h 5m
2026-06-18 ASR263 ANR → ANR Jun 18, 12:40 UTCJun 18, 15:50 UTC3h 10m
2026-06-17 ASR263 ANR → ANR Jun 17, 12:45 UTCJun 17, 15:35 UTC2h 50m
2026-06-16 ASR263 - Jun 16, 07:25 UTCJun 16, 08:15 UTC50m
2026-06-14 ASR161 - Jun 14, 12:30 UTCJun 14, 16:15 UTC3h 45m
2026-06-13 ASR161 - Jun 13, 11:55 UTCJun 13, 14:45 UTC2h 50m
2026-06-12 ASR161 - Jun 12, 12:40 UTCJun 12, 15:35 UTC2h 55m
2026-06-11 ASR161 LYN → LYN Jun 11, 12:35 UTCJun 11, 15:45 UTC3h 10m
2026-06-10 ASR161 LYN → LYN Jun 10, 12:40 UTCJun 10, 15:25 UTC2h 45m
2026-06-09 ASR161 LYN → LYN Jun 9, 12:40 UTCJun 9, 15:45 UTC3h 5m
2026-06-08 ASR161 LYN → LYN Jun 8, 12:25 UTCJun 8, 15:50 UTC3h 25m
2026-06-07 ASR161 LYN → LYN Jun 7, 10:25 UTCJun 7, 13:30 UTC3h 5m
2026-06-06 ASR161 - Jun 6, 13:20 UTCJun 6, 16:24 UTC3h 5m
2026-05-17 ASR252 - May 17, 16:30 UTCMay 17, 18:55 UTC2h 25m
2026-05-17 ASR252 - May 17, 10:15 UTCMay 17, 15:45 UTC5h 30m
2026-05-16 ASR252 - May 16, 10:16 UTCMay 16, 14:35 UTC4h 20m
2026-05-15 ASR252 - May 15, 10:10 UTCMay 15, 15:00 UTC4h 49m
2026-05-14 ASR252 - May 14, 09:55 UTCMay 14, 16:10 UTC6h 15m
2026-05-13 ASR252 - May 13, 10:25 UTCMay 13, 14:35 UTC4h 10m
2026-05-12 ASR252 - May 12, 13:15 UTCMay 12, 14:25 UTC1h 10m
2026-05-10 ASR251 - May 10, 09:20 UTCMay 10, 15:39 UTC6h 20m
2026-05-09 ASR251 - May 9, 08:00 UTCMay 9, 15:15 UTC7h 15m
2026-05-08 ASR251 - May 8, 10:09 UTCMay 8, 15:05 UTC4h 55m
2026-05-07 ASR251 - May 7, 10:05 UTCMay 7, 13:40 UTC3h 35m
2026-05-07 ASR251 - May 7, 05:40 UTCMay 7, 08:30 UTC2h 50m
2026-05-03 ASR941 - May 3, 11:30 UTCMay 3, 15:15 UTC3h 45m
2026-05-02 ASR941 - May 2, 11:15 UTCMay 2, 14:20 UTC3h 5m
2026-05-01 ASR941 - May 1, 13:15 UTCMay 1, 16:05 UTC2h 50m
2026-04-30 ASR941 - Apr 30, 13:00 UTCApr 30, 15:55 UTC2h 55m
2026-04-29 ASR941 - Apr 29, 12:45 UTCApr 29, 16:05 UTC3h 20m
2026-04-28 ASR941 - Apr 28, 13:00 UTCApr 28, 15:50 UTC2h 50m
2026-04-27 ASR941 - Apr 27, 12:45 UTCApr 27, 15:00 UTC2h 15m
2026-04-26 ASR249 - Apr 26, 18:20 UTCApr 26, 19:05 UTC45m
2026-04-26 ASR249 - Apr 26, 09:30 UTCApr 26, 16:25 UTC6h 55m
2026-04-25 ASR249 ANR → ANR Apr 25, 11:05 UTCApr 25, 12:35 UTC1h 30m
2026-04-22 ASR248 - Apr 22, 10:00 UTCApr 22, 16:20 UTC6h 20m
2026-04-21 ASR248 - Apr 21, 11:10 UTCApr 21, 12:50 UTC1h 40m
2026-04-19 ASR247 - Apr 19, 10:05 UTCApr 19, 15:45 UTC5h 40m
2026-04-18 ASR247 ANR → ANR Apr 18, 10:55 UTCApr 18, 12:25 UTC1h 30m
2026-04-17 ASR246 - Apr 17, 15:20 UTCApr 17, 15:50 UTC30m
2026-04-17 ASR246 - Apr 17, 13:20 UTCApr 17, 15:15 UTC1h 54m
2026-04-17 ASR246 - Apr 17, 12:25 UTCApr 17, 13:15 UTC50m
2026-04-15 ASR245 - Apr 15, 15:05 UTCApr 15, 15:55 UTC50m
2026-04-15 ASR245 - Apr 15, 13:01 UTCApr 15, 14:55 UTC1h 54m
2026-04-15 ASR245 - Apr 15, 12:30 UTCApr 15, 12:55 UTC25m
2026-04-14 ASR245 - Apr 14, 07:35 UTCApr 14, 08:25 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-HFRF page for operator, model, and routing details .

Mode-S 399625 frequently asked

What is Mode-S code 399625?
399625 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HFRF.
Where is Mode-S 399625 registered?
Mode-S code 399625 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 399625 broadcasting right now?
No active broadcast right now. Last signal was 22d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 399625, octal 16313045, decimal 3,773,989.
What flights does 399625 operate?
Mode-S 399625 has broadcast 10 distinct callsigns, including ASR161, ASR941, ASR263, ASR252, ASR251.