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sensors Mode-S transponder

39D0A0

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HUFA · BRM AERO Bristell B23

Hex
39D0A0
Octal
16350240
Decimal
3,788,960
Country
FR
Tail
F-HUFA
Type
BR23
No current signal · last broadcast Jul 26, 19:05 UTC
Flights observed
114
Distinct callsigns
1
Country
FR
Last broadcast
Jul 26, 19:05 UTC

Last known position

Most recent position reported by Mode-S 39D0A0.

Country allocation

The ICAO 24-bit address 39D0A0 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
FHUFA - 114 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FHUFA - Jul 26, 18:05 UTCJul 26, 19:05 UTC1h 0m
2026-07-26 FHUFA - Jul 26, 09:30 UTCJul 26, 10:45 UTC1h 15m
2026-07-26 FHUFA - Jul 26, 07:25 UTCJul 26, 08:30 UTC1h 5m
2026-07-22 FHUFA - Jul 22, 12:40 UTCJul 22, 13:55 UTC1h 15m
2026-07-20 FHUFA - Jul 20, 07:05 UTCJul 20, 08:20 UTC1h 15m
2026-07-17 FHUFA - Jul 17, 13:05 UTCJul 17, 13:40 UTC35m
2026-07-17 FHUFA - Jul 17, 10:30 UTCJul 17, 11:10 UTC40m
2026-07-16 FHUFA - Jul 16, 06:45 UTCJul 16, 07:20 UTC35m
2026-07-15 FHUFA - Jul 15, 15:50 UTCJul 15, 16:15 UTC25m
2026-07-14 FHUFA - Jul 14, 08:25 UTCJul 14, 10:45 UTC2h 20m
2026-07-13 FHUFA - Jul 13, 16:25 UTCJul 13, 16:55 UTC30m
2026-07-12 FHUFA - Jul 12, 08:45 UTCJul 12, 10:55 UTC2h 10m
2026-07-12 FHUFA - Jul 12, 07:01 UTCJul 12, 07:50 UTC50m
2026-07-11 FHUFA - Jul 11, 13:15 UTCJul 11, 13:55 UTC40m
2026-07-05 FHUFA - Jul 5, 18:50 UTCJul 5, 19:30 UTC40m
2026-07-03 FHUFA - Jul 3, 07:55 UTCJul 3, 09:35 UTC1h 40m
2026-07-02 FHUFA - Jul 2, 17:35 UTCJul 2, 18:15 UTC40m
2026-07-01 FHUFA - Jul 1, 08:10 UTCJul 1, 08:30 UTC20m
2026-06-28 FHUFA - Jun 28, 13:59 UTCJun 28, 15:05 UTC1h 5m
2026-06-28 FHUFA - Jun 28, 10:10 UTCJun 28, 11:00 UTC50m
2026-06-27 FHUFA - Jun 27, 09:44 UTCJun 27, 10:19 UTC35m
2026-06-27 FHUFA - Jun 27, 07:19 UTCJun 27, 07:45 UTC25m
2026-06-26 FHUFA - Jun 26, 13:04 UTCJun 26, 13:34 UTC30m
2026-06-26 FHUFA - Jun 26, 09:50 UTCJun 26, 10:30 UTC40m
2026-06-26 FHUFA - Jun 26, 06:09 UTCJun 26, 07:10 UTC1h 0m
2026-06-25 FHUFA - Jun 25, 11:19 UTCJun 25, 12:54 UTC1h 35m
2026-06-25 FHUFA - Jun 25, 08:04 UTCJun 25, 09:10 UTC1h 5m
2026-06-24 FHUFA - Jun 24, 09:24 UTCJun 24, 10:25 UTC1h 0m
2026-06-24 FHUFA - Jun 24, 07:50 UTCJun 24, 08:30 UTC40m
2026-06-23 FHUFA - Jun 23, 09:05 UTCJun 23, 09:40 UTC35m
2026-06-22 FHUFA - Jun 22, 15:40 UTCJun 22, 16:10 UTC30m
2026-06-22 FHUFA - Jun 22, 12:54 UTCJun 22, 14:34 UTC1h 40m
2026-06-20 FHUFA - Jun 20, 12:39 UTCJun 20, 13:39 UTC1h 0m
2026-06-20 FHUFA - Jun 20, 08:44 UTCJun 20, 09:24 UTC40m
2026-06-20 FHUFA - Jun 20, 07:04 UTCJun 20, 07:59 UTC55m
2026-06-19 FHUFA - Jun 19, 16:04 UTCJun 19, 16:44 UTC40m
2026-06-19 FHUFA - Jun 19, 09:40 UTCJun 19, 10:04 UTC25m
2026-06-18 FHUFA - Jun 18, 15:20 UTCJun 18, 17:10 UTC1h 50m
2026-06-18 FHUFA - Jun 18, 10:50 UTCJun 18, 11:10 UTC20m
2026-06-17 FHUFA - Jun 17, 07:35 UTCJun 17, 09:15 UTC1h 40m
2026-06-16 FHUFA - Jun 16, 17:15 UTCJun 16, 17:35 UTC20m
2026-06-15 FHUFA - Jun 15, 17:25 UTCJun 15, 18:04 UTC40m
2026-06-15 FHUFA - Jun 15, 08:10 UTCJun 15, 10:24 UTC2h 15m
2026-06-15 FHUFA - Jun 15, 07:00 UTCJun 15, 07:35 UTC35m
2026-06-12 FHUFA - Jun 12, 16:55 UTCJun 12, 17:30 UTC35m
2026-06-12 FHUFA - Jun 12, 15:30 UTCJun 12, 15:55 UTC25m
2026-06-12 FHUFA - Jun 12, 13:00 UTCJun 12, 14:35 UTC1h 35m
2026-06-12 FHUFA - Jun 12, 08:10 UTCJun 12, 08:45 UTC35m
2026-06-12 FHUFA - Jun 12, 06:25 UTCJun 12, 06:50 UTC25m
2026-06-09 FHUFA - Jun 9, 14:45 UTCJun 9, 15:20 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-HUFA page for operator, model, and routing details .

Mode-S 39D0A0 frequently asked

What is Mode-S code 39D0A0?
39D0A0 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUFA.
Where is Mode-S 39D0A0 registered?
Mode-S code 39D0A0 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D0A0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D0A0, octal 16350240, decimal 3,788,960.
What flights does 39D0A0 operate?
Mode-S 39D0A0 has broadcast 1 distinct callsign, including FHUFA.