sensors Mode-S transponder

39DE50

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HXSQ · AIRBUS A-320neo

Hex
39DE50
Octal
16357120
Decimal
3,792,464
Country
FR
Tail
F-HXSQ
Type
A20N
Broadcasting now · callsign TVF46VR · 38,975 ft
Flights observed
15
Distinct callsigns
8
Country
FR
Last broadcast
20h ago

Current position

39DE50 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39DE50 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 8 distinct

Callsign Airline Flights Last seen
TVF36UQ - 3 2026-04-13
TVF14KM - 3 2026-04-13
TVF8964 Transavia France 2 2026-04-14
TVF54PL - 2 2026-04-13
TVF32DR - 2 2026-04-13
TVF83MR - 1 2026-04-14
TVF67PV - 1 2026-04-12
TVF13DQ - 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 TVF8964 ORY → MIR Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 TVF8964 ORY → MIR Apr 14, 07:40 UTCApr 14, 09:05 UTC1h 25m
2026-04-14 TVF83MR - Apr 14, 05:15 UTCApr 14, 05:50 UTC35m
2026-04-13 TVF32DR - Apr 13, 19:50 UTCApr 13, 20:35 UTC45m
2026-04-13 TVF32DR - Apr 13, 19:25 UTCApr 13, 20:10 UTC45m
2026-04-13 TVF36UQ - Apr 13, 16:15 UTCApr 13, 18:05 UTC1h 50m
2026-04-13 TVF36UQ - Apr 13, 15:50 UTCApr 13, 18:05 UTC2h 15m
2026-04-13 TVF36UQ - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 TVF54PL - Apr 13, 12:20 UTCApr 13, 14:20 UTC2h 0m
2026-04-13 TVF54PL - Apr 13, 11:45 UTCApr 13, 12:15 UTC30m
2026-04-13 TVF14KM - Apr 13, 08:20 UTCApr 13, 09:20 UTC1h 0m
2026-04-13 TVF14KM - Apr 13, 07:55 UTCApr 13, 09:20 UTC1h 25m
2026-04-13 TVF14KM - Apr 13, 07:30 UTCApr 13, 08:15 UTC45m
2026-04-13 TVF13DQ ORY → OPO Apr 13, 04:25 UTCApr 13, 06:10 UTC1h 45m
2026-04-12 TVF67PV - Apr 12, 17:15 UTCApr 12, 20:15 UTC3h 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-HXSQ page for operator, model, and routing details .

Mode-S 39DE50 frequently asked

What is Mode-S code 39DE50?
39DE50 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HXSQ.
Where is Mode-S 39DE50 registered?
Mode-S code 39DE50 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39DE50 broadcasting right now?
Yes. Mode-S 39DE50 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39DE50, octal 16357120, decimal 3,792,464.
What flights does 39DE50 operate?
Mode-S 39DE50 has broadcast 8 distinct callsigns, including TVF36UQ, TVF14KM, TVF8964, TVF54PL, TVF32DR.