sensors Mode-S transponder

3964F1

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GZHR · BOEING 737-800

Hex
3964F1
Octal
16262361
Decimal
3,761,393
Country
FR
Tail
F-GZHR
Type
B738
No current signal · last broadcast 6h ago
Flights observed
433
Distinct callsigns
20
Country
FR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 3964F1.

Country allocation

The ICAO 24-bit address 3964F1 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
TVF63AB - 5 2026-06-27
TVF18KQ - 5 2026-06-26
TVF99SL Transavia France 4 2026-06-19
TVF88YF - 4 2026-06-21
TVF79AV - 4 2026-06-19
TVF76UF - 4 2026-06-27
TVF75WS - 4 2026-04-18
TVF67PV - 4 2026-07-14
TVF47ZN - 4 2026-07-02
TVF46JB - 4 2026-06-27
TVF44DP - 4 2026-06-21
TVF23ZG - 4 2026-06-21
TVF19HL - 4 2026-06-17
TVF99CX - 3 2026-07-06
TVF88MU Transavia France 3 2026-05-15
TVF8393 - 3 2026-06-26
TVF74WW - 3 2026-06-05
TVF71PK - 3 2026-07-01
TVF66DD - 3 2026-06-09
TVF64JU - 3 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TVF67PV - Jul 14, 16:35 UTCJul 14, 20:05 UTC3h 30m
2026-07-14 TVF512A - Jul 14, 12:30 UTCJul 14, 15:20 UTC2h 50m
2026-07-14 TVF739F - Jul 14, 09:40 UTCJul 14, 11:10 UTC1h 30m
2026-07-14 TVF68FN - Jul 14, 06:55 UTCJul 14, 08:25 UTC1h 30m
2026-07-14 TVF51UZ - Jul 14, 00:50 UTCJul 14, 04:15 UTC3h 25m
2026-07-13 TVF59XH - Jul 13, 20:55 UTCJul 13, 23:45 UTC2h 50m
2026-07-13 TVF934S - Jul 13, 16:20 UTCJul 13, 18:30 UTC2h 10m
2026-07-13 TVF93KK - Jul 13, 13:15 UTCJul 13, 15:20 UTC2h 5m
2026-07-13 TVF72SW - Jul 13, 04:40 UTCJul 13, 11:35 UTC6h 55m
2026-07-12 TVF79GC - Jul 12, 19:55 UTCJul 12, 21:30 UTC1h 35m
2026-07-12 TVF82AQ - Jul 12, 16:50 UTCJul 12, 18:50 UTC2h 0m
2026-07-12 TVF37LE - Jul 12, 12:25 UTCJul 12, 15:05 UTC2h 40m
2026-07-12 TVF64UK - Jul 12, 08:45 UTCJul 12, 11:15 UTC2h 30m
2026-07-11 TVF6181 - Jul 11, 19:05 UTCJul 11, 20:45 UTC1h 40m
2026-07-11 TVF6180 - Jul 11, 16:10 UTCJul 11, 17:30 UTC1h 20m
2026-07-11 TVF6951 MIR → LYS Jul 11, 12:55 UTCJul 11, 14:40 UTC1h 45m
2026-07-11 TVF6950 LYS → MIR Jul 11, 10:15 UTCJul 11, 11:30 UTC1h 15m
2026-07-11 TVF794E - Jul 11, 06:35 UTCJul 11, 08:20 UTC1h 45m
2026-07-11 TVF15YM - Jul 11, 03:45 UTCJul 11, 05:31 UTC1h 45m
2026-07-10 TVF96YS - Jul 10, 18:45 UTCJul 10, 20:40 UTC1h 55m
2026-07-10 TVF47SN BOD → SVQ Jul 10, 16:20 UTCJul 10, 17:45 UTC1h 25m
2026-07-10 TVF50XK SVQ → BOD Jul 10, 14:00 UTCJul 10, 15:25 UTC1h 25m
2026-07-10 TVF70LT - Jul 10, 10:50 UTCJul 10, 12:40 UTC1h 50m
2026-07-10 TVF794E - Jul 10, 07:45 UTCJul 10, 09:25 UTC1h 40m
2026-07-10 TVF15YM - Jul 10, 04:50 UTCJul 10, 06:35 UTC1h 45m
2026-07-09 TVF37LE - Jul 9, 15:40 UTCJul 9, 18:15 UTC2h 35m
2026-07-09 TVF64UK - Jul 9, 11:50 UTCJul 9, 14:20 UTC2h 30m
2026-07-09 TVF912Z - Jul 9, 08:00 UTCJul 9, 09:20 UTC1h 20m
2026-07-09 TVF36JN - Jul 9, 05:20 UTCJul 9, 06:45 UTC1h 25m
2026-07-08 TVF8557 - Jul 8, 19:40 UTCJul 8, 20:55 UTC1h 15m
2026-07-08 TVF8602 ORY → DJE Jul 8, 15:20 UTCJul 8, 17:50 UTC2h 30m
2026-07-08 TVF36VX - Jul 8, 09:50 UTCJul 8, 13:15 UTC3h 25m
2026-07-08 TVF21BA - Jul 8, 05:35 UTCJul 8, 08:25 UTC2h 50m
2026-07-07 TVF16VB - Jul 7, 18:25 UTCJul 7, 19:25 UTC1h 0m
2026-07-07 TVF64JU ORY → TLS Jul 7, 16:25 UTCJul 7, 17:20 UTC55m
2026-07-07 TVF414K - Jul 7, 14:15 UTCJul 7, 15:25 UTC1h 10m
2026-07-07 TVF15US ORY → TLN Jul 7, 12:10 UTCJul 7, 13:20 UTC1h 10m
2026-07-07 TVF28EM - Jul 7, 09:25 UTCJul 7, 10:30 UTC1h 5m
2026-07-07 TVF77LB - Jul 7, 07:25 UTCJul 7, 08:20 UTC55m
2026-07-07 TVF38YC - Jul 7, 04:55 UTCJul 7, 05:55 UTC1h 0m
2026-07-06 TVF20NC - Jul 6, 19:45 UTCJul 6, 20:40 UTC55m
2026-07-06 TVF99CX NCE → ORY Jul 6, 17:20 UTCJul 6, 18:25 UTC1h 5m
2026-07-06 TVF31GU ORY → NCE Jul 6, 14:55 UTCJul 6, 16:10 UTC1h 15m
2026-07-06 TVF55GZ ALC → ORY Jul 6, 11:50 UTCJul 6, 13:35 UTC1h 45m
2026-07-06 TVF4704 ORY → ALC Jul 6, 08:40 UTCJul 6, 10:25 UTC1h 45m
2026-07-06 TVF44LU - Jul 6, 05:40 UTCJul 6, 06:50 UTC1h 10m
2026-07-05 TVF30ZJ ORY → TLN Jul 5, 18:00 UTCJul 5, 19:10 UTC1h 10m
2026-07-05 TVF78LR TLS → ORY Jul 5, 15:35 UTCJul 5, 16:45 UTC1h 10m
2026-07-05 TVF12HT ORY → TLS Jul 5, 13:45 UTCJul 5, 14:40 UTC55m
2026-07-05 TVF55GZ ALC → ORY Jul 5, 10:35 UTCJul 5, 12:25 UTC1h 50m

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

Mode-S 3964F1 frequently asked

What is Mode-S code 3964F1?
3964F1 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GZHR.
Where is Mode-S 3964F1 registered?
Mode-S code 3964F1 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3964F1 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3964F1, octal 16262361, decimal 3,761,393.
What flights does 3964F1 operate?
Mode-S 3964F1 has broadcast 20 distinct callsigns, including TVF63AB, TVF18KQ, TVF99SL, TVF88YF, TVF79AV.