Apparatus

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sensors Mode-S transponder

39D2B3

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HUVT · AIRBUS A-350-900

Hex
39D2B3
Octal
16351263
Decimal
3,789,491
Country
FR
Tail
F-HUVT
Type
A359
No current signal · last broadcast 55m ago
Flights observed
199
Distinct callsigns
20
Country
FR
Last broadcast
55m ago

Last known position

Most recent position reported by Mode-S 39D2B3.

Country allocation

The ICAO 24-bit address 39D2B3 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
AFR185 - 20 2026-07-01
AFR188 - 19 2026-07-01
AFR137T - 12 2026-07-12
AFR136 - 8 2026-07-12
AFR334M Air France 7 2026-06-05
AFR333F Air France 7 2026-06-05
AFR332 - 7 2026-07-11
AFR331E - 7 2026-07-12
AFR286 Air France 7 2026-06-20
AFR63J - 6 2026-07-02
AFR062 - 6 2026-07-02
AFR98G Air France 5 2026-06-10
AFR460 - 5 2026-07-13
AFR459 - 5 2026-07-13
AFR287 Air France 5 2026-06-21
AFR099 Air France 5 2026-06-10
AFR093 Air France 5 2026-06-01
AFR092 Air France 5 2026-05-31
AFR82M - 4 2026-07-07
AFR267 - 4 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AFR459 - Jul 13, 23:10 UTCJul 14, 08:45 UTC9h 35m
2026-07-13 AFR460 - Jul 13, 09:50 UTCJul 13, 20:50 UTC11h 0m
2026-07-12 AFR137T - Jul 12, 23:05 UTCJul 13, 06:50 UTC7h 45m
2026-07-12 AFR136 - Jul 12, 11:50 UTCJul 12, 20:01 UTC8h 10m
2026-07-12 AFR331E - Jul 12, 02:10 UTCJul 12, 08:20 UTC6h 10m
2026-07-11 AFR332 - Jul 11, 16:10 UTCJul 11, 23:05 UTC6h 55m
2026-07-11 AFR65F - Jul 11, 04:55 UTCJul 11, 11:25 UTC6h 30m
2026-07-10 AFR064 - Jul 10, 18:15 UTCJul 11, 01:45 UTC7h 30m
2026-07-10 AFR019 - Jul 10, 04:05 UTCJul 10, 14:10 UTC10h 5m
2026-07-09 AFR019 - Jul 9, 17:45 UTCJul 10, 01:30 UTC7h 45m
2026-07-09 AFR018 - Jul 9, 07:15 UTCJul 9, 14:50 UTC7h 35m
2026-07-08 AFR018 - Jul 8, 17:55 UTCJul 9, 04:35 UTC10h 40m
2026-07-08 AFR081 - Jul 8, 04:50 UTCJul 8, 14:40 UTC9h 50m
2026-07-07 AFR82M CDG → SFO Jul 7, 15:15 UTCJul 8, 02:05 UTC10h 50m
2026-07-07 AFR097 - Jul 7, 03:45 UTCJul 7, 12:10 UTC8h 25m
2026-07-06 AFR096 - Jul 6, 14:50 UTCJul 6, 23:30 UTC8h 40m
2026-07-05 AFR705 - Jul 5, 16:50 UTCJul 6, 08:10 UTC15h 20m
2026-07-05 AFR081 - Jul 5, 03:40 UTCJul 5, 13:25 UTC9h 45m
2026-07-04 AFR82M - Jul 4, 13:50 UTCJul 5, 00:50 UTC11h 0m
2026-07-04 AFR459 - Jul 4, 00:00 UTCJul 4, 10:30 UTC10h 30m
2026-07-03 AFR460 - Jul 3, 09:35 UTCJul 3, 20:55 UTC11h 20m
2026-07-02 AFR63J - Jul 2, 22:00 UTCJul 3, 04:25 UTC6h 25m
2026-07-02 AFR062 - Jul 2, 11:45 UTCJul 2, 19:10 UTC7h 25m
2026-07-01 AFR185 - Jul 1, 22:50 UTCJul 2, 03:30 UTC4h 40m
2026-07-01 AFR185 - Jul 1, 14:55 UTCJul 1, 15:10 UTC15m
2026-07-01 AFR188 - Jul 1, 09:15 UTCJul 1, 09:40 UTC25m
2026-06-30 AFR188 - Jun 30, 22:25 UTCJul 1, 02:30 UTC4h 5m
2026-06-30 AFR267 - Jun 30, 08:30 UTCJun 30, 16:40 UTC8h 10m
2026-06-30 AFR267 - Jun 30, 03:15 UTCJun 30, 03:35 UTC20m
2026-06-30 AFR264 - Jun 30, 00:14 UTCJun 30, 00:39 UTC25m
2026-06-29 AFR264 - Jun 29, 13:34 UTCJun 29, 23:34 UTC10h 0m
2026-06-28 AFR63J EWR → CDG Jun 28, 21:30 UTCJun 29, 04:04 UTC6h 35m
2026-06-28 AFR062 - Jun 28, 11:04 UTCJun 28, 18:25 UTC7h 20m
2026-06-27 AFR63J EWR → CDG Jun 27, 21:44 UTCJun 28, 03:59 UTC6h 15m
2026-06-27 AFR062 - Jun 27, 12:15 UTCJun 27, 19:34 UTC7h 20m
2026-06-26 AFR185 - Jun 26, 23:15 UTCJun 27, 04:00 UTC4h 45m
2026-06-26 AFR185 - Jun 26, 14:55 UTCJun 26, 15:10 UTC15m
2026-06-26 AFR188 ZGN → HKG Jun 26, 08:45 UTCJun 26, 09:14 UTC30m
2026-06-25 AFR188 - Jun 25, 22:04 UTCJun 26, 02:09 UTC4h 5m
2026-06-25 AFR267 - Jun 25, 11:54 UTCJun 25, 16:45 UTC4h 50m
2026-06-25 AFR267 - Jun 25, 03:24 UTCJun 25, 03:44 UTC20m
2026-06-24 AFR264 - Jun 24, 23:59 UTCJun 25, 00:24 UTC25m
2026-06-24 AFR264 - Jun 24, 13:24 UTCJun 24, 23:20 UTC9h 55m
2026-06-23 AFR459 - Jun 23, 23:50 UTCJun 24, 10:19 UTC10h 30m
2026-06-23 AFR460 - Jun 23, 09:14 UTCJun 23, 20:15 UTC11h 0m
2026-06-22 AFR185 - Jun 22, 17:20 UTCJun 23, 03:29 UTC10h 10m
2026-06-22 AFR185 - Jun 22, 14:45 UTCJun 22, 14:59 UTC15m
2026-06-22 AFR188 - Jun 22, 08:50 UTCJun 22, 09:24 UTC35m
2026-06-21 AFR188 - Jun 21, 22:00 UTCJun 22, 02:04 UTC4h 5m
2026-06-21 AFR287 HND → CDG Jun 21, 03:05 UTCJun 21, 16:39 UTC13h 35m

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

Mode-S 39D2B3 frequently asked

What is Mode-S code 39D2B3?
39D2B3 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUVT.
Where is Mode-S 39D2B3 registered?
Mode-S code 39D2B3 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D2B3 broadcasting right now?
No active broadcast right now. Last signal was 55m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D2B3, octal 16351263, decimal 3,789,491.
What flights does 39D2B3 operate?
Mode-S 39D2B3 has broadcast 20 distinct callsigns, including AFR185, AFR188, AFR137T, AFR136, AFR334M.