sensors Mode-S transponder

39D2A2

ICAO 24-bit transponder address · allocated to France

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

Hex
39D2A2
Octal
16351242
Decimal
3,789,474
Country
FR
Tail
F-HUVC
Type
A359
Broadcasting now · callsign AFR198 · 35,100 ft
Flights observed
111
Distinct callsigns
20
Country
FR
Last broadcast
1h ago

Current position

39D2A2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39D2A2 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
AFR028 Air France 10 2026-05-11
AFR029 Air France 9 2026-05-12
AFR198 Air France 8 2026-05-29
AFR199 Air France 6 2026-05-25
AFR012 Air France 6 2026-05-12
AFR377 - 5 2026-04-13
AFR196 Air France 4 2026-04-13
AFR195 - 4 2026-04-14
AFR188 Air France 4 2026-05-26
AFR185 Air France 4 2026-05-27
AFR11E Air France 4 2026-05-05
AFR995 Air France 3 2026-05-15
AFR990 Air France 3 2026-05-14
AFR491 Air France 3 2026-04-26
AFR63J Air France 2 2026-04-21
AFR468 Air France 2 2026-04-27
AFR460 Air France 2 2026-05-19
AFR459 Air France 2 2026-05-19
AFR407 Air France 2 2026-04-29
AFR264 Air France 2 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR198 CDG → BKK May 29, 15:15 UTCMay 29, 23:55 UTC8h 40m
2026-05-28 AFR069 PHX → CDG May 28, 23:20 UTCMay 29, 09:15 UTC9h 55m
2026-05-28 AFR068 CDG → PHX May 28, 10:10 UTCMay 28, 20:35 UTC10h 25m
2026-05-27 AFR185 HKG → CDG May 27, 01:05 UTCMay 27, 03:29 UTC2h 25m
2026-05-26 AFR185 HKG → CDG May 26, 14:45 UTCMay 26, 15:05 UTC20m
2026-05-26 AFR188 CDG → HKG May 26, 08:59 UTCMay 26, 09:40 UTC40m
2026-05-25 AFR188 CDG → HKG May 25, 21:54 UTCMay 26, 02:15 UTC4h 20m
2026-05-25 AFR199 BKK → CDG May 25, 04:40 UTCMay 25, 16:45 UTC12h 5m
2026-05-24 AFR198 CDG → BKK May 24, 15:20 UTCMay 24, 23:46 UTC8h 26m
2026-05-24 AFR179 MEX → CDG May 24, 01:55 UTCMay 24, 12:00 UTC10h 5m
2026-05-23 AFR178 CDG → MEX May 23, 11:50 UTCMay 23, 23:25 UTC11h 35m
2026-05-22 AFR185 HKG → CDG May 22, 23:10 UTCMay 23, 03:40 UTC4h 29m
2026-05-22 AFR185 HKG → CDG May 22, 14:50 UTCMay 22, 15:05 UTC15m
2026-05-22 AFR188 CDG → HKG May 22, 08:45 UTCMay 22, 09:20 UTC35m
2026-05-21 AFR188 CDG → HKG May 21, 21:40 UTCMay 22, 02:00 UTC4h 20m
2026-05-21 AFR267 ICN → CDG May 21, 03:10 UTCMay 21, 16:25 UTC13h 15m
2026-05-21 AFR264 CDG → ICN May 21, 00:05 UTCMay 21, 00:25 UTC20m
2026-05-20 AFR264 CDG → ICN May 20, 13:05 UTCMay 20, 23:25 UTC10h 20m
2026-05-19 AFR459 GRU → CDG May 19, 23:00 UTCMay 20, 09:50 UTC10h 51m
2026-05-19 AFR460 CDG → GRU May 19, 09:00 UTCMay 19, 20:25 UTC11h 25m
2026-05-18 AFR375G YVR → CDG May 18, 20:40 UTCMay 19, 05:40 UTC9h 0m
2026-05-18 AFR374F CDG → YVR May 18, 08:45 UTCMay 18, 17:55 UTC9h 10m
2026-05-15 AFR995 JNB → CDG May 15, 17:10 UTCMay 16, 03:45 UTC10h 35m
2026-05-14 AFR990 CDG → JNB May 14, 22:40 UTCMay 15, 08:45 UTC10h 5m
2026-05-14 AFR199 BKK → CDG May 14, 05:10 UTCMay 14, 17:30 UTC12h 20m
2026-05-13 AFR198 CDG → BKK May 13, 15:25 UTCMay 14, 02:20 UTC10h 55m
2026-05-12 AFR012 CDG → JFK May 12, 18:45 UTCMay 12, 21:40 UTC2h 55m
2026-05-12 AFR029 LAX → CDG May 12, 04:25 UTCMay 12, 14:30 UTC10h 5m
2026-05-11 AFR029 LAX → CDG May 11, 18:05 UTCMay 11, 18:45 UTC40m
2026-05-11 AFR028 LAX → PPT May 11, 07:20 UTCMay 11, 15:20 UTC8h 0m
2026-05-10 AFR028 LAX → PPT May 10, 18:20 UTCMay 11, 04:55 UTC10h 35m
2026-05-09 AFR459 GRU → CDG May 9, 23:35 UTCMay 10, 09:45 UTC10h 10m
2026-05-09 AFR460 CDG → GRU May 9, 09:50 UTCMay 9, 21:19 UTC11h 30m
2026-05-08 AFR995 JNB → CDG May 8, 17:10 UTCMay 9, 04:45 UTC11h 35m
2026-05-07 AFR990 CDG → JNB May 7, 21:45 UTCMay 8, 07:44 UTC10h 0m
2026-05-07 AFR199 BKK → CDG May 7, 04:50 UTCMay 7, 16:55 UTC12h 5m
2026-05-06 AFR198 CDG → BKK May 6, 14:55 UTCMay 6, 22:45 UTC7h 50m
2026-05-06 AFR53M IAD → CDG May 6, 01:55 UTCMay 6, 08:50 UTC6h 55m
2026-05-05 AFR52X CDG → IAD May 5, 15:20 UTCMay 5, 23:05 UTC7h 45m
2026-05-05 AFR11E JFK → CDG May 5, 05:20 UTCMay 5, 11:45 UTC6h 25m
2026-05-04 AFR012 CDG → JFK May 4, 19:05 UTCMay 5, 02:15 UTC7h 10m
2026-05-04 AFR027 PPT → LAX May 4, 04:09 UTCMay 4, 14:10 UTC10h 0m
2026-05-03 AFR027 PPT → LAX May 3, 18:09 UTCMay 4, 01:24 UTC7h 15m
2026-05-03 AFR026 CDG → LAX May 3, 07:30 UTCMay 3, 15:50 UTC8h 20m
2026-05-02 AFR026 CDG → LAX May 2, 17:55 UTCMay 3, 04:45 UTC10h 49m
2026-05-02 AFR179 MEX → CDG May 2, 02:55 UTCMay 2, 12:55 UTC10h 0m
2026-05-01 AFR178 CDG → MEX May 1, 11:50 UTCMay 1, 23:10 UTC11h 20m
2026-04-30 AFR137T ORD → CDG Apr 30, 22:35 UTCMay 1, 06:15 UTC7h 40m
2026-04-30 AFR136 CDG → ORD Apr 30, 17:25 UTCApr 30, 19:50 UTC2h 25m
2026-04-30 AFR136 CDG → ORD Apr 30, 11:40 UTCApr 30, 17:20 UTC5h 40m

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

Mode-S 39D2A2 frequently asked

What is Mode-S code 39D2A2?
39D2A2 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUVC.
Where is Mode-S 39D2A2 registered?
Mode-S code 39D2A2 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D2A2 broadcasting right now?
Yes. Mode-S 39D2A2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D2A2, octal 16351242, decimal 3,789,474.
What flights does 39D2A2 operate?
Mode-S 39D2A2 has broadcast 20 distinct callsigns, including AFR028, AFR029, AFR198, AFR199, AFR012.