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
Transponder active on ground
Flights observed
224
Distinct callsigns
20
Country
FR
Last broadcast
1h 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
TVF75WS - 4 2026-04-18
TVF99SL - 3 2026-04-13
TVF88YF - 3 2026-05-03
TVF88MU Transavia France 3 2026-05-15
TVF79AV - 3 2026-04-13
TVF67PV - 3 2026-05-15
TVF47ZN Transavia France 3 2026-05-09
TVF30RB Transavia France 3 2026-05-10
TVF19HL Transavia France 3 2026-05-10
TVF99CX Transavia France 2 2026-05-21
TVF95NL - 2 2026-05-14
TVF88VZ - 2 2026-05-28
TVF88SW Transavia France 2 2026-05-10
TVF8497 Transavia France 2 2026-05-13
TVF83PE - 2 2026-05-20
TVF8393 Transavia France 2 2026-05-13
TVF82CF - 2 2026-05-17
TVF78UR - 2 2026-05-20
TVF77YP - 2 2026-05-10
TVF74WW - 2 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 TVF50AD - May 30, 11:00 UTCMay 30, 12:15 UTC1h 15m
2026-05-30 TVF37MF - May 30, 07:50 UTCMay 30, 09:35 UTC1h 45m
2026-05-29 TVF15AN LIS → ORY May 29, 18:10 UTCMay 29, 20:15 UTC2h 5m
2026-05-29 TVF46GH ORY → LIS May 29, 14:45 UTCMay 29, 16:55 UTC2h 10m
2026-05-29 TVF47TR VIE → ORY May 29, 11:50 UTCMay 29, 13:30 UTC1h 40m
2026-05-29 TVF61HP ORY → VIE May 29, 09:05 UTCMay 29, 10:45 UTC1h 40m
2026-05-29 TVF52FQ - May 29, 05:15 UTCMay 29, 07:30 UTC2h 15m
2026-05-28 TVF88VZ ORY → FAO May 28, 19:55 UTCMay 28, 22:00 UTC2h 5m
2026-05-28 TVF60SE - May 28, 16:20 UTCMay 28, 18:30 UTC2h 10m
2026-05-28 TVF63YH - May 28, 12:55 UTCMay 28, 15:05 UTC2h 10m
2026-05-27 TVF8231 TUN → ORY May 27, 18:15 UTCMay 27, 20:00 UTC1h 45m
2026-05-27 TVF8230 ORY → TUN May 27, 14:45 UTCMay 27, 16:25 UTC1h 40m
2026-05-27 TVF34BR LIS → ORY May 27, 05:09 UTCMay 27, 07:20 UTC2h 11m
2026-05-26 TVF34QV ORY → LIS May 26, 19:20 UTCMay 26, 21:40 UTC2h 20m
2026-05-26 TVF198X - May 26, 15:24 UTCMay 26, 17:35 UTC2h 10m
2026-05-26 TVF74WW - May 26, 11:44 UTCMay 26, 13:45 UTC2h 0m
2026-05-26 TVF81DP - May 26, 08:30 UTCMay 26, 10:10 UTC1h 40m
2026-05-26 TVF27BG - May 26, 05:34 UTCMay 26, 07:15 UTC1h 40m
2026-05-25 TVF64YY - May 25, 20:15 UTCMay 25, 21:24 UTC1h 10m
2026-05-25 TVF63HF ORY → PSA May 25, 17:25 UTCMay 25, 18:40 UTC1h 15m
2026-05-25 TVF47TR VIE → ORY May 25, 11:20 UTCMay 25, 12:55 UTC1h 35m
2026-05-25 TVF61HP ORY → VIE May 25, 08:35 UTCMay 25, 10:15 UTC1h 40m
2026-05-25 TVF63AB OPO → ORY May 25, 05:35 UTCMay 25, 07:25 UTC1h 50m
2026-05-24 TVF18KQ ORY → OPO May 24, 18:55 UTCMay 24, 20:40 UTC1h 45m
2026-05-24 TVF26VL - May 24, 16:05 UTCMay 24, 17:35 UTC1h 30m
2026-05-24 TVF16LH ORY → PMI May 24, 13:15 UTCMay 24, 14:40 UTC1h 25m
2026-05-24 TVF198X - May 24, 09:50 UTCMay 24, 12:00 UTC2h 10m
2026-05-24 TVF74WW - May 24, 06:15 UTCMay 24, 08:05 UTC1h 50m
2026-05-23 TVF17NU MAD → ORY May 23, 17:55 UTCMay 23, 19:50 UTC1h 55m
2026-05-23 TVF32VF ORY → LIS May 23, 14:00 UTCMay 23, 16:30 UTC2h 30m
2026-05-23 TVF61KJ - May 23, 09:15 UTCMay 23, 12:30 UTC3h 15m
2026-05-23 TVF63TX ORY → ACE May 23, 04:10 UTCMay 23, 07:45 UTC3h 35m
2026-05-22 TVF16VB ORY → PMI May 22, 18:10 UTCMay 22, 19:05 UTC55m
2026-05-22 TVF64JU ESU → ORY May 22, 16:15 UTCMay 22, 17:10 UTC55m
2026-05-22 TVF40PY NCE → ORY May 22, 13:55 UTCMay 22, 15:05 UTC1h 10m
2026-05-22 TVF61RA ORY → NCE May 22, 11:40 UTCMay 22, 12:50 UTC1h 10m
2026-05-22 TVF28EM - May 22, 09:05 UTCMay 22, 10:00 UTC55m
2026-05-22 TVF77LB - May 22, 07:05 UTCMay 22, 08:05 UTC1h 0m
2026-05-22 TVF38YC - May 22, 04:50 UTCMay 22, 05:45 UTC55m
2026-05-21 TVF20NC - May 21, 19:05 UTCMay 21, 20:05 UTC1h 0m
2026-05-21 TVF99CX NCE → ORY May 21, 16:45 UTCMay 21, 18:00 UTC1h 15m
2026-05-21 TVF31GU ORY → NCE May 21, 14:15 UTCMay 21, 15:30 UTC1h 15m
2026-05-21 TVF71VK FAO → ORY May 21, 10:55 UTCMay 21, 13:01 UTC2h 5m
2026-05-21 TVF59WC ORY → FAO May 21, 07:20 UTCMay 21, 09:40 UTC2h 20m
2026-05-21 TVF39WB OPO → LYS May 21, 05:10 UTCMay 21, 06:15 UTC1h 5m
2026-05-20 TVF15PP ORY → PGF May 20, 18:25 UTCMay 20, 19:25 UTC1h 0m
2026-05-20 TVF45AG RAK → MRS May 20, 16:10 UTCMay 20, 17:15 UTC1h 5m
2026-05-20 TVF70MM ORY → TLS May 20, 14:20 UTCMay 20, 15:15 UTC55m
2026-05-20 TVF27CN - May 20, 12:05 UTCMay 20, 13:20 UTC1h 15m
2026-05-20 TVF56TJ ORY → NCE May 20, 09:35 UTCMay 20, 10:40 UTC1h 5m

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?
Mode-S 3964F1 is currently broadcasting from the ground.
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 TVF75WS, TVF99SL, TVF88YF, TVF88MU, TVF79AV.