sensors Mode-S transponder

3964F7

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GZHX · BOEING 737-800

Hex
3964F7
Octal
16262367
Decimal
3,761,399
Country
FR
Tail
F-GZHX
Type
B738
No current signal · last broadcast 1d ago
Flights observed
8
Distinct callsigns
5
Country
FR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3964F7.

Country allocation

The ICAO 24-bit address 3964F7 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 5 distinct

Callsign Airline Flights Last seen
TVF8099 - 3 2026-04-13
TVF8603 - 2 2026-04-13
TVF8602 - 1 2026-04-13
TVF8098 Transavia France 1 2026-04-13
TVF1095 - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 TVF8603 ORY → ORY Apr 13, 19:45 UTCApr 13, 19:50 UTC5m
2026-04-13 TVF8603 - Apr 13, 18:00 UTCApr 13, 19:50 UTC1h 50m
2026-04-13 TVF8602 - Apr 13, 13:50 UTCApr 13, 15:35 UTC1h 45m
2026-04-13 TVF8099 - Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 TVF8099 - Apr 13, 10:10 UTCApr 13, 12:05 UTC1h 55m
2026-04-13 TVF8099 - Apr 13, 07:55 UTCApr 13, 11:50 UTC3h 55m
2026-04-13 TVF8098 ORY → SFA Apr 13, 06:25 UTCApr 13, 08:10 UTC1h 45m
2026-04-12 TVF1095 - Apr 12, 17:45 UTCApr 12, 20:15 UTC2h 30m

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

Mode-S 3964F7 frequently asked

What is Mode-S code 3964F7?
3964F7 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GZHX.
Where is Mode-S 3964F7 registered?
Mode-S code 3964F7 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3964F7 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3964F7, octal 16262367, decimal 3,761,399.
What flights does 3964F7 operate?
Mode-S 3964F7 has broadcast 5 distinct callsigns, including TVF8099, TVF8603, TVF8602, TVF8098, TVF1095.