sensors Mode-S transponder

39D2A9

ICAO 24-bit transponder address · allocated to France

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

Hex
39D2A9
Octal
16351251
Decimal
3,789,481
Country
FR
Tail
F-HUVJ
Type
A359
Broadcasting now · callsign AFR287 · 39,000 ft
Flights observed
110
Distinct callsigns
20
Country
FR
Last broadcast
44m ago

Current position

39D2A9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39D2A9 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
AFR98G Air France 11 2026-05-28
AFR099 Air France 11 2026-05-28
AFR029 Air France 8 2026-04-15
AFR068 Air France 7 2026-05-13
AFR302 Air France 6 2026-04-17
AFR028 - 6 2026-04-13
AFR334M Air France 5 2026-05-21
AFR333F Air France 5 2026-05-21
AFR069 Air France 5 2026-05-13
AFR460 Air France 4 2026-05-23
AFR63J Air France 3 2026-05-26
AFR303 Air France 3 2026-04-18
AFR287 Air France 3 2026-05-30
AFR286 Air France 3 2026-05-29
AFR062 Air France 3 2026-05-26
AFR995 Air France 2 2026-05-25
AFR990 Air France 2 2026-05-24
AFR459 Air France 2 2026-05-23
AFR267 Air France 2 2026-04-25
AFR264 Air France 2 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFR287 HND → CDG May 30, 03:10 UTCMay 30, 08:15 UTC5h 5m
2026-05-29 AFR286 CDG → HND May 29, 11:20 UTCMay 29, 23:40 UTC12h 20m
2026-05-28 AFR099 MIA → CDG May 28, 21:20 UTCMay 29, 06:05 UTC8h 45m
2026-05-28 AFR98G CDG → IAH May 28, 09:15 UTCMay 28, 18:40 UTC9h 25m
2026-05-26 AFR63J EWR → CDG May 26, 21:20 UTCMay 27, 03:59 UTC6h 40m
2026-05-26 AFR062 CDG → EWR May 26, 11:15 UTCMay 26, 18:24 UTC7h 10m
2026-05-25 AFR995 JNB → CDG May 25, 17:25 UTCMay 26, 03:55 UTC10h 29m
2026-05-24 AFR990 CDG → JNB May 24, 23:00 UTCMay 25, 09:15 UTC10h 15m
2026-05-23 AFR459 GRU → CDG May 23, 22:50 UTCMay 24, 09:20 UTC10h 30m
2026-05-23 AFR460 CDG → GRU May 23, 09:15 UTCMay 23, 20:25 UTC11h 11m
2026-05-22 AFR63J EWR → CDG May 22, 21:20 UTCMay 23, 03:25 UTC6h 5m
2026-05-22 AFR062 CDG → EWR May 22, 11:00 UTCMay 22, 18:25 UTC7h 25m
2026-05-21 AFR333F BOS → CDG May 21, 21:45 UTCMay 22, 03:35 UTC5h 50m
2026-05-21 AFR334M CDG → BOS May 21, 11:50 UTCMay 21, 18:55 UTC7h 5m
2026-05-20 AFR099 MIA → CDG May 20, 21:35 UTCMay 21, 06:15 UTC8h 40m
2026-05-20 AFR98G CDG → IAH May 20, 08:40 UTCMay 20, 19:15 UTC10h 35m
2026-05-16 AFR333F BOS → CDG May 16, 21:40 UTCMay 17, 03:45 UTC6h 5m
2026-05-16 AFR334M CDG → BOS May 16, 11:31 UTCMay 16, 18:30 UTC7h 0m
2026-05-15 AFR099 MIA → CDG May 15, 21:25 UTCMay 16, 06:20 UTC8h 56m
2026-05-15 AFR98G CDG → IAH May 15, 08:55 UTCMay 15, 18:40 UTC9h 44m
2026-05-14 AFR333F BOS → CDG May 14, 21:55 UTCMay 15, 04:00 UTC6h 5m
2026-05-14 AFR334M CDG → BOS May 14, 12:05 UTCMay 14, 19:30 UTC7h 25m
2026-05-13 AFR069 PHX → CDG May 13, 22:35 UTCMay 14, 08:30 UTC9h 55m
2026-05-13 AFR068 CDG → PHX May 13, 09:20 UTCMay 13, 20:05 UTC10h 45m
2026-05-12 AFR099 MIA → CDG May 12, 21:10 UTCMay 13, 06:15 UTC9h 5m
2026-05-12 AFR98G CDG → IAH May 12, 08:35 UTCMay 12, 18:30 UTC9h 55m
2026-05-11 AFR287 HND → CDG May 11, 03:05 UTCMay 11, 17:05 UTC14h 1m
2026-05-10 AFR286 CDG → HND May 10, 11:05 UTCMay 11, 00:00 UTC12h 55m
2026-05-09 AFR333F BOS → CDG May 9, 21:25 UTCMay 10, 03:45 UTC6h 20m
2026-05-09 AFR334M CDG → BOS May 9, 11:45 UTCMay 9, 18:35 UTC6h 50m
2026-05-08 AFR099 MIA → CDG May 8, 21:15 UTCMay 9, 06:00 UTC8h 45m
2026-05-08 AFR98G CDG → IAH May 8, 08:34 UTCMay 8, 18:50 UTC10h 15m
2026-05-07 AFR995 JNB → CDG May 7, 17:20 UTCMay 8, 04:34 UTC11h 14m
2026-05-06 AFR990 CDG → JNB May 6, 21:30 UTCMay 7, 08:45 UTC11h 15m
2026-05-06 AFR199 BKK → CDG May 6, 05:05 UTCMay 6, 17:10 UTC12h 5m
2026-05-05 AFR198 CDG → BKK May 5, 15:01 UTCMay 6, 01:30 UTC10h 30m
2026-05-05 AFR179 MEX → CDG May 5, 02:15 UTCMay 5, 12:20 UTC10h 5m
2026-05-04 AFR178 CDG → MEX May 4, 11:35 UTCMay 4, 22:40 UTC11h 6m
2026-05-03 AFR099 MIA → CDG May 3, 21:10 UTCMay 4, 05:55 UTC8h 45m
2026-05-03 AFR98G CDG → IAH May 3, 08:45 UTCMay 3, 18:30 UTC9h 45m
2026-05-02 AFR333F BOS → CDG May 2, 21:30 UTCMay 3, 03:50 UTC6h 19m
2026-05-02 AFR334M CDG → BOS May 2, 11:35 UTCMay 2, 18:20 UTC6h 45m
2026-05-01 AFR551 CAI → CDG May 1, 19:45 UTCMay 2, 06:55 UTC11h 10m
2026-05-01 AFR173 MEX → CDG May 1, 04:45 UTCMay 1, 14:55 UTC10h 10m
2026-04-30 AFR174 CDG → MEX Apr 30, 14:15 UTCMay 1, 01:25 UTC11h 10m
2026-04-30 AFR53M IAD → CDG Apr 30, 01:35 UTCApr 30, 09:00 UTC7h 25m
2026-04-29 AFR52X CDG → IAD Apr 29, 15:20 UTCApr 29, 22:55 UTC7h 35m
2026-04-29 AFR093 MIA → CDG Apr 29, 03:19 UTCApr 29, 11:45 UTC8h 26m
2026-04-28 AFR092 CDG → MIA Apr 28, 15:10 UTCApr 29, 00:05 UTC8h 55m
2026-04-28 AFR179 MEX → CDG Apr 28, 02:00 UTCApr 28, 12:25 UTC10h 25m

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

Mode-S 39D2A9 frequently asked

What is Mode-S code 39D2A9?
39D2A9 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUVJ.
Where is Mode-S 39D2A9 registered?
Mode-S code 39D2A9 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D2A9 broadcasting right now?
Yes. Mode-S 39D2A9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D2A9, octal 16351251, decimal 3,789,481.
What flights does 39D2A9 operate?
Mode-S 39D2A9 has broadcast 20 distinct callsigns, including AFR98G, AFR099, AFR029, AFR068, AFR302.