sensors Mode-S transponder

39D2A4

ICAO 24-bit transponder address · allocated to France

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

Hex
39D2A4
Octal
16351244
Decimal
3,789,476
Country
FR
Tail
F-HUVE
Type
A359
Broadcasting now · callsign AFR012 · 40,000 ft
Flights observed
106
Distinct callsigns
20
Country
FR
Last broadcast
5h ago

Current position

39D2A4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39D2A4 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
AFR027 Air France 11 2026-05-30
AFR026 Air France 11 2026-05-29
AFR995 Air France 6 2026-05-22
AFR195 Air France 6 2026-04-16
AFR196 Air France 5 2026-04-15
AFR990 Air France 4 2026-05-21
AFR178 Air France 4 2026-05-24
AFR11E Air France 4 2026-05-28
AFR012 Air France 4 2026-05-27
AFR98G Air France 3 2026-05-23
AFR378E Air France 3 2026-04-14
AFR377 Air France 3 2026-04-15
AFR179 Air France 3 2026-05-25
AFR099 Air France 3 2026-05-23
AFR722 Air France 2 2026-05-02
AFR52X Air France 2 2026-05-25
AFR287 Air France 2 2026-05-04
AFR286 Air France 2 2026-05-03
AFR264 Air France 2 2026-04-25
AFR185 Air France 2 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFR027 PPT → LAX May 30, 04:55 UTCMay 30, 15:20 UTC10h 25m
2026-05-29 AFR027 PPT → LAX May 29, 19:10 UTCMay 30, 02:35 UTC7h 25m
2026-05-29 AFR026 CDG → LAX May 29, 07:35 UTCMay 29, 15:20 UTC7h 45m
2026-05-28 AFR026 CDG → LAX May 28, 17:50 UTCMay 29, 04:40 UTC10h 50m
2026-05-28 AFR11E JFK → CDG May 28, 05:25 UTCMay 28, 11:55 UTC6h 30m
2026-05-27 AFR012 CDG → JFK May 27, 18:55 UTCMay 28, 01:55 UTC7h 0m
2026-05-27 AFR173 MEX → CDG May 27, 04:45 UTCMay 27, 14:55 UTC10h 10m
2026-05-26 AFR174 CDG → MEX May 26, 14:40 UTCMay 27, 01:49 UTC11h 10m
2026-05-26 AFR53M IAD → CDG May 26, 01:55 UTCMay 26, 08:45 UTC6h 50m
2026-05-25 AFR52X CDG → IAD May 25, 15:45 UTCMay 25, 23:30 UTC7h 44m
2026-05-25 AFR179 MEX → CDG May 25, 01:55 UTCMay 25, 11:50 UTC9h 55m
2026-05-24 AFR178 CDG → MEX May 24, 23:05 UTCMay 24, 23:20 UTC15m
2026-05-24 AFR178 CDG → MEX May 24, 11:45 UTCMay 24, 21:45 UTC10h 0m
2026-05-23 AFR099 MIA → CDG May 23, 21:35 UTCMay 24, 06:20 UTC8h 45m
2026-05-23 AFR98G CDG → IAH May 23, 08:40 UTCMay 23, 18:55 UTC10h 15m
2026-05-22 AFR995 JNB → CDG May 22, 18:25 UTCMay 23, 05:15 UTC10h 49m
2026-05-21 AFR990 CDG → JNB May 21, 21:35 UTCMay 22, 08:25 UTC10h 50m
2026-05-21 AFR179 MEX → CDG May 21, 02:30 UTCMay 21, 12:15 UTC9h 45m
2026-05-20 AFR178 CDG → MEX May 20, 12:00 UTCMay 20, 23:10 UTC11h 10m
2026-05-19 AFR069 PHX → CDG May 19, 23:30 UTCMay 20, 08:40 UTC9h 11m
2026-05-19 AFR068 CDG → PHX May 19, 09:30 UTCMay 19, 19:55 UTC10h 25m
2026-05-18 AFR099 MIA → CDG May 18, 21:15 UTCMay 19, 06:10 UTC8h 55m
2026-05-18 AFR98G CDG → IAH May 18, 08:35 UTCMay 18, 18:30 UTC9h 54m
2026-05-17 AFR333F BOS → CDG May 17, 21:40 UTCMay 18, 03:45 UTC6h 5m
2026-05-17 AFR334M CDG → BOS May 17, 11:40 UTCMay 17, 18:45 UTC7h 5m
2026-05-16 AFR705 ABJ → CDG May 16, 16:55 UTCMay 17, 08:00 UTC15h 5m
2026-05-16 AFR11E JFK → CDG May 16, 05:25 UTCMay 16, 11:46 UTC6h 21m
2026-05-15 AFR012 CDG → JFK May 15, 18:55 UTCMay 16, 02:20 UTC7h 25m
2026-05-15 AFR11E JFK → CDG May 15, 05:35 UTCMay 15, 12:05 UTC6h 30m
2026-05-14 AFR012 CDG → JFK May 14, 18:45 UTCMay 15, 02:20 UTC7h 35m
2026-05-14 AFR029 LAX → CDG May 14, 04:20 UTCMay 14, 14:25 UTC10h 5m
2026-05-13 AFR029 LAX → CDG May 13, 18:00 UTCMay 14, 01:45 UTC7h 45m
2026-05-13 AFR028 LAX → PPT May 13, 07:35 UTCMay 13, 15:30 UTC7h 55m
2026-05-12 AFR028 LAX → PPT May 12, 17:50 UTCMay 13, 04:45 UTC10h 55m
2026-05-11 AFR52X CDG → IAD May 11, 15:30 UTCMay 12, 08:50 UTC17h 21m
2026-05-11 AFR179 MEX → CDG May 11, 01:40 UTCMay 11, 11:30 UTC9h 50m
2026-05-10 AFR178 CDG → MEX May 10, 11:55 UTCMay 10, 23:25 UTC11h 30m
2026-05-09 AFR995 JNB → CDG May 9, 17:00 UTCMay 10, 04:09 UTC11h 10m
2026-05-08 AFR990 CDG → JNB May 8, 21:40 UTCMay 9, 07:45 UTC10h 5m
2026-05-07 AFR491 CDG → PUJ May 7, 22:15 UTCMay 8, 13:00 UTC14h 45m
2026-05-07 AFR490 CDG → PTY May 7, 14:35 UTCMay 7, 15:50 UTC1h 15m
2026-05-07 AFR57J LAS → CDG May 7, 01:30 UTCMay 7, 11:15 UTC9h 45m
2026-05-06 AFR56T CDG → LAS May 6, 12:10 UTCMay 6, 22:00 UTC9h 49m
2026-05-05 AFR995 JNB → CDG May 5, 17:15 UTCMay 6, 04:00 UTC10h 45m
2026-05-04 AFR990 CDG → JNB May 4, 21:50 UTCMay 5, 07:50 UTC10h 0m
2026-05-04 AFR287 HND → CDG May 4, 03:15 UTCMay 4, 16:45 UTC13h 30m
2026-05-03 AFR286 CDG → HND May 3, 11:15 UTCMay 4, 00:19 UTC13h 5m
2026-05-02 AFR099 MIA → CDG May 2, 21:30 UTCMay 3, 06:15 UTC8h 44m
2026-05-02 AFR98G CDG → IAH May 2, 08:45 UTCMay 2, 18:35 UTC9h 50m
2026-05-02 AFR722 CDG → FIH May 2, 03:35 UTCMay 2, 05:25 UTC1h 50m

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

Mode-S 39D2A4 frequently asked

What is Mode-S code 39D2A4?
39D2A4 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUVE.
Where is Mode-S 39D2A4 registered?
Mode-S code 39D2A4 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D2A4 broadcasting right now?
Yes. Mode-S 39D2A4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D2A4, octal 16351244, decimal 3,789,476.
What flights does 39D2A4 operate?
Mode-S 39D2A4 has broadcast 20 distinct callsigns, including AFR027, AFR026, AFR995, AFR195, AFR196.