sensors Mode-S transponder

39D310

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HUYQ · BOEING 737-800

Hex
39D310
Octal
16351420
Decimal
3,789,584
Country
FR
Tail
F-HUYQ
Type
B738
No current signal · last broadcast 12h ago
Flights observed
5
Distinct callsigns
4
Country
FR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 39D310.

Country allocation

The ICAO 24-bit address 39D310 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 4 distinct

Callsign Airline Flights Last seen
TVF15PP - 2 2026-04-13
TVF74VS - 1 2026-04-14
TVF39WB Transavia France 1 2026-04-14
TVF35PS - 1 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 TVF35PS - Apr 14, 10:05 UTCApr 14, 11:05 UTC1h 0m
2026-04-14 TVF74VS - Apr 14, 07:55 UTCApr 14, 08:55 UTC1h 0m
2026-04-14 TVF39WB OPO → LYS Apr 14, 05:15 UTCApr 14, 06:15 UTC1h 0m
2026-04-13 TVF15PP - Apr 13, 19:50 UTCApr 13, 20:20 UTC30m
2026-04-13 TVF15PP - Apr 13, 19:25 UTCApr 13, 20:10 UTC45m

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

Mode-S 39D310 frequently asked

What is Mode-S code 39D310?
39D310 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUYQ.
Where is Mode-S 39D310 registered?
Mode-S code 39D310 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D310 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D310, octal 16351420, decimal 3,789,584.
What flights does 39D310 operate?
Mode-S 39D310 has broadcast 4 distinct callsigns, including TVF15PP, TVF74VS, TVF39WB, TVF35PS.