sensors Mode-S transponder

39D315

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HUYV · BOEING 737-800

Hex
39D315
Octal
16351425
Decimal
3,789,589
Country
FR
Tail
F-HUYV
Type
B738
No current signal · last broadcast 13h ago
Flights observed
13
Distinct callsigns
9
Country
FR
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 39D315.

Country allocation

The ICAO 24-bit address 39D315 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 9 distinct

Callsign Airline Flights Last seen
TVF36JN - 3 2026-04-13
TVF8777 - 2 2026-04-14
TVF7309 - 2 2026-04-13
TVF8776 - 1 2026-04-14
TVF8704 - 1 2026-04-12
TVF8557 - 1 2026-04-13
TVF8556 - 1 2026-04-13
TVF7329 - 1 2026-04-13
TVF7328 Transavia France 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 TVF8777 - Apr 14, 09:10 UTCApr 14, 09:20 UTC10m
2026-04-14 TVF8777 - Apr 14, 08:05 UTCApr 14, 09:05 UTC1h 0m
2026-04-14 TVF8776 - Apr 14, 05:25 UTCApr 14, 06:35 UTC1h 10m
2026-04-13 TVF8557 - Apr 13, 20:25 UTCApr 13, 21:40 UTC1h 15m
2026-04-13 TVF8556 - Apr 13, 16:55 UTCApr 13, 18:10 UTC1h 15m
2026-04-13 TVF7309 - Apr 13, 15:50 UTCApr 13, 15:55 UTC5m
2026-04-13 TVF7309 - Apr 13, 14:40 UTCApr 13, 15:55 UTC1h 15m
2026-04-13 TVF36JN - Apr 13, 12:20 UTCApr 13, 12:30 UTC10m
2026-04-13 TVF36JN - Apr 13, 11:55 UTCApr 13, 12:30 UTC35m
2026-04-13 TVF36JN - Apr 13, 11:15 UTCApr 13, 12:15 UTC1h 0m
2026-04-13 TVF7329 - Apr 13, 08:40 UTCApr 13, 09:45 UTC1h 5m
2026-04-13 TVF7328 LYS → BJA Apr 13, 04:20 UTCApr 13, 05:35 UTC1h 15m
2026-04-12 TVF8704 - 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-HUYV page for operator, model, and routing details .

Mode-S 39D315 frequently asked

What is Mode-S code 39D315?
39D315 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HUYV.
Where is Mode-S 39D315 registered?
Mode-S code 39D315 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39D315 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39D315, octal 16351425, decimal 3,789,589.
What flights does 39D315 operate?
Mode-S 39D315 has broadcast 9 distinct callsigns, including TVF36JN, TVF8777, TVF7309, TVF8776, TVF8704.