sensors Mode-S transponder

39D2A3

ICAO 24-bit transponder address · allocated to France

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

Hex
39D2A3
Octal
16351243
Decimal
3,789,475
Country
FR
Tail
F-HUVD
Type
A359
No current signal · last broadcast 1h ago
Flights observed
112
Distinct callsigns
20
Country
FR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 39D2A3.

Country allocation

The ICAO 24-bit address 39D2A3 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
AFR188 Air France 10 2026-05-20
AFR185 Air France 10 2026-05-21
AFR199 Air France 7 2026-04-26
AFR267 Air France 6 2026-05-30
AFR264 Air France 6 2026-05-30
AFR460 Air France 5 2026-05-28
AFR459 Air France 5 2026-05-28
AFR198 Air France 5 2026-04-25
AFR179 Air France 5 2026-05-04
AFR377 Air France 4 2026-04-20
AFR027 Air France 4 2026-05-25
AFR026 Air France 4 2026-05-24
AFR378E Air France 3 2026-04-19
AFR081 Air France 3 2026-05-14
AFR995 Air France 2 2026-05-06
AFR990 Air France 2 2026-05-05
AFR82M Air France 2 2026-05-13
AFR570 Air France 2 2026-05-27
AFR551 Air France 2 2026-05-28
AFR431 Air France 2 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFR267 ICN → CDG May 30, 08:40 UTCMay 30, 12:45 UTC4h 5m
2026-05-30 AFR267 ICN → CDG May 30, 03:05 UTCMay 30, 03:20 UTC15m
2026-05-30 AFR264 CDG → ICN May 30, 00:10 UTCMay 30, 00:30 UTC20m
2026-05-29 AFR264 CDG → ICN May 29, 13:20 UTCMay 29, 23:25 UTC10h 5m
2026-05-28 AFR459 GRU → CDG May 28, 23:05 UTCMay 29, 09:40 UTC10h 35m
2026-05-28 AFR460 CDG → GRU May 28, 09:20 UTCMay 28, 20:35 UTC11h 15m
2026-05-28 AFR551 CAI → CDG May 28, 01:30 UTCMay 28, 05:35 UTC4h 5m
2026-05-27 AFR570 CDG → CAI May 27, 19:30 UTCMay 27, 23:05 UTC3h 35m
2026-05-27 AFR019 PPT → LAX May 27, 04:14 UTCMay 27, 14:30 UTC10h 15m
2026-05-26 AFR019 PPT → LAX May 26, 17:55 UTCMay 27, 00:44 UTC6h 50m
2026-05-26 AFR018 LAX → PPT May 26, 07:19 UTCMay 26, 15:24 UTC8h 5m
2026-05-25 AFR018 LAX → PPT May 25, 17:55 UTCMay 26, 04:50 UTC10h 55m
2026-05-25 AFR027 PPT → LAX May 25, 04:20 UTCMay 25, 14:30 UTC10h 10m
2026-05-24 AFR027 PPT → LAX May 24, 18:10 UTCMay 24, 18:55 UTC45m
2026-05-24 AFR026 CDG → LAX May 24, 07:10 UTCMay 24, 15:25 UTC8h 15m
2026-05-23 AFR026 CDG → LAX May 23, 17:55 UTCMay 24, 04:35 UTC10h 41m
2026-05-22 AFR459 GRU → CDG May 22, 22:50 UTCMay 23, 09:25 UTC10h 34m
2026-05-22 AFR460 CDG → GRU May 22, 09:05 UTCMay 22, 20:30 UTC11h 25m
2026-05-21 AFR185 HKG → CDG May 21, 22:45 UTCMay 22, 03:20 UTC4h 35m
2026-05-21 AFR185 HKG → CDG May 21, 14:40 UTCMay 21, 14:55 UTC15m
2026-05-20 AFR188 CDG → HKG May 20, 21:45 UTCMay 21, 09:25 UTC11h 40m
2026-05-20 AFR267 ICN → CDG May 20, 08:45 UTCMay 20, 16:20 UTC7h 35m
2026-05-20 AFR267 ICN → CDG May 20, 03:20 UTCMay 20, 03:35 UTC15m
2026-05-20 AFR264 CDG → ICN May 20, 00:15 UTCMay 20, 00:35 UTC20m
2026-05-19 AFR264 CDG → ICN May 19, 13:00 UTCMay 19, 23:25 UTC10h 25m
2026-05-18 AFR459 GRU → CDG May 18, 23:05 UTCMay 19, 09:35 UTC10h 30m
2026-05-18 AFR460 CDG → GRU May 18, 09:25 UTCMay 18, 20:20 UTC10h 54m
2026-05-17 AFR185 HKG → CDG May 17, 22:55 UTCMay 18, 03:30 UTC4h 35m
2026-05-17 AFR185 HKG → CDG May 17, 14:40 UTCMay 17, 15:01 UTC20m
2026-05-16 AFR188 CDG → HKG May 16, 21:45 UTCMay 17, 09:15 UTC11h 30m
2026-05-16 AFR027 PPT → LAX May 16, 04:25 UTCMay 16, 14:25 UTC10h 1m
2026-05-15 AFR027 PPT → LAX May 15, 17:55 UTCMay 16, 01:35 UTC7h 40m
2026-05-15 AFR026 CDG → LAX May 15, 07:25 UTCMay 15, 15:20 UTC7h 54m
2026-05-14 AFR026 CDG → LAX May 14, 17:50 UTCMay 15, 04:40 UTC10h 50m
2026-05-14 AFR081 SFO → CDG May 14, 03:50 UTCMay 14, 13:30 UTC9h 40m
2026-05-13 AFR82M CDG → SFO May 13, 14:20 UTCMay 14, 01:10 UTC10h 50m
2026-05-12 AFR137T ORD → CDG May 12, 23:05 UTCMay 13, 06:40 UTC7h 35m
2026-05-12 AFR136 CDG → ORD May 12, 11:30 UTCMay 12, 20:10 UTC8h 40m
2026-05-12 AFR137T ORD → CDG May 12, 04:10 UTCMay 12, 05:50 UTC1h 40m
2026-05-11 AFR136 CDG → ORD May 11, 11:30 UTCMay 11, 19:45 UTC8h 15m
2026-05-10 AFR185 HKG → CDG May 10, 22:55 UTCMay 11, 03:40 UTC4h 45m
2026-05-10 AFR185 HKG → CDG May 10, 14:49 UTCMay 10, 15:05 UTC15m
2026-05-10 AFR188 CDG → HKG May 10, 08:50 UTCMay 10, 09:15 UTC25m
2026-05-09 AFR188 CDG → HKG May 9, 21:50 UTCMay 10, 01:55 UTC4h 5m
2026-05-08 AFR459 GRU → CDG May 8, 22:50 UTCMay 9, 09:15 UTC10h 25m
2026-05-08 AFR460 CDG → GRU May 8, 09:09 UTCMay 8, 20:35 UTC11h 25m
2026-05-07 AFR1U JFK → CDG May 7, 21:10 UTCMay 8, 03:35 UTC6h 25m
2026-05-07 AFR2N CDG → JFK May 7, 06:55 UTCMay 7, 14:20 UTC7h 25m
2026-05-06 AFR995 JNB → CDG May 6, 17:20 UTCMay 7, 04:10 UTC10h 49m
2026-05-05 AFR990 CDG → JNB May 5, 21:35 UTCMay 6, 08:35 UTC11h 0m

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

Mode-S 39D2A3 frequently asked

What is Mode-S code 39D2A3?
39D2A3 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUVD.
Where is Mode-S 39D2A3 registered?
Mode-S code 39D2A3 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D2A3 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D2A3, octal 16351243, decimal 3,789,475.
What flights does 39D2A3 operate?
Mode-S 39D2A3 has broadcast 20 distinct callsigns, including AFR188, AFR185, AFR199, AFR267, AFR264.