sensors Mode-S transponder

3964EF

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GZHP · BOEING 737-800

Hex
3964EF
Octal
16262357
Decimal
3,761,391
Country
FR
Tail
F-GZHP
Type
B738
Broadcasting now · callsign TRA781 · 31,975 ft
Flights observed
207
Distinct callsigns
20
Country
FR
Last broadcast
1h ago

Current position

3964EF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3964EF 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
TVF89WM - 4 2026-05-15
TVF89TU - 4 2026-05-15
TVF76UF Transavia France 4 2026-05-25
TVF46JB Transavia France 4 2026-05-25
TVF36VX - 4 2026-04-22
TVF21BA - 4 2026-04-22
TVF8625 Transavia France 3 2026-05-17
TVF8393 Transavia France 3 2026-05-05
TVF67PV - 3 2026-04-16
TVF49KB Transavia France 3 2026-05-24
TVF49ES - 3 2026-04-13
TVF43DC - 3 2026-05-27
TVF34QV - 3 2026-05-24
TVF34BR - 3 2026-05-25
TVF20BT - 3 2026-05-25
TVF206H Transavia France 3 2026-05-25
TVF99CX - 2 2026-04-14
TVF97KC - 2 2026-05-24
TVF88XB - 2 2026-05-18
TVF88MU - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 TRA7781 - May 30, 06:10 UTCMay 30, 07:45 UTC1h 35m
2026-05-29 TVF16VB ORY → PMI May 29, 19:10 UTCMay 29, 20:10 UTC1h 0m
2026-05-29 TVF64JU ESU → ORY May 29, 17:15 UTCMay 29, 18:10 UTC55m
2026-05-29 TVF6009 TOE → ORY May 29, 09:05 UTCMay 29, 14:45 UTC5h 40m
2026-05-29 TVF42GL ORY → LCA May 29, 05:25 UTCMay 29, 07:15 UTC1h 50m
2026-05-28 TVF19HL ORY → PMO May 28, 19:30 UTCMay 28, 21:20 UTC1h 50m
2026-05-28 TVF90BP DUB → ORY May 28, 16:50 UTCMay 28, 18:20 UTC1h 30m
2026-05-28 TVF49CW ORY → DUB May 28, 14:05 UTCMay 28, 15:35 UTC1h 30m
2026-05-28 TVF66DD - May 28, 08:25 UTCMay 28, 10:30 UTC2h 5m
2026-05-28 TVF57FM - May 28, 04:55 UTCMay 28, 07:00 UTC2h 5m
2026-05-27 TVF23AE LIS → ORY May 27, 18:25 UTCMay 27, 20:30 UTC2h 5m
2026-05-27 TVF72AP ORY → LIS May 27, 15:00 UTCMay 27, 17:05 UTC2h 5m
2026-05-27 TVF17YN CMN → ORY May 27, 10:50 UTCMay 27, 13:15 UTC2h 25m
2026-05-27 TVF43DC - May 27, 06:49 UTCMay 27, 09:15 UTC2h 25m
2026-05-26 TVF6426 ORY → SFA May 26, 13:29 UTCMay 26, 18:59 UTC5h 30m
2026-05-26 TVF43EV FCO → ORY May 26, 09:35 UTCMay 26, 12:00 UTC2h 25m
2026-05-26 TVF60YB - May 26, 05:54 UTCMay 26, 08:10 UTC2h 15m
2026-05-25 TVF206H IBZ → ORY May 25, 19:10 UTCMay 25, 20:45 UTC1h 35m
2026-05-25 TVF20BT ORY → IBZ May 25, 16:25 UTCMay 25, 18:10 UTC1h 45m
2026-05-25 TVF76UF LIS → ORY May 25, 13:15 UTCMay 25, 15:15 UTC2h 0m
2026-05-25 TVF46JB ORY → IBZ May 25, 09:15 UTCMay 25, 11:20 UTC2h 5m
2026-05-25 TVF34BR LIS → ORY May 25, 06:00 UTCMay 25, 08:00 UTC2h 0m
2026-05-24 TVF34QV - May 24, 19:30 UTCMay 24, 21:51 UTC2h 21m
2026-05-24 TVF43MN ORY → ORY May 24, 10:55 UTCMay 24, 17:55 UTC7h 0m
2026-05-24 TVF49KB JMK → ORY May 24, 08:05 UTCMay 24, 09:35 UTC1h 30m
2026-05-24 TVF97KC - May 24, 04:55 UTCMay 24, 06:30 UTC1h 35m
2026-05-23 TVF27AJ - May 23, 19:00 UTCMay 23, 21:00 UTC2h 0m
2026-05-23 TVF66HG ORY → TGD May 23, 15:25 UTCMay 23, 17:20 UTC1h 55m
2026-05-23 TVF76UF LIS → ORY May 23, 12:10 UTCMay 23, 14:05 UTC1h 55m
2026-05-23 TVF46JB ORY → IBZ May 23, 08:50 UTCMay 23, 11:05 UTC2h 15m
2026-05-23 TVF63AB OPO → ORY May 23, 05:40 UTCMay 23, 07:20 UTC1h 40m
2026-05-22 TVF18KQ ORY → OPO May 22, 18:35 UTCMay 22, 20:25 UTC1h 50m
2026-05-22 TVF198X - May 22, 15:05 UTCMay 22, 17:00 UTC1h 55m
2026-05-22 TVF74WW - May 22, 11:35 UTCMay 22, 13:25 UTC1h 50m
2026-05-22 TVF46VY - May 22, 07:50 UTCMay 22, 09:45 UTC1h 55m
2026-05-22 TVF75XT ORY → ALG May 22, 04:30 UTCMay 22, 06:15 UTC1h 45m
2026-05-21 TVF777 CDG → ORY May 21, 19:55 UTCMay 21, 21:00 UTC1h 5m
2026-05-21 TVF21CK - May 21, 17:00 UTCMay 21, 19:05 UTC2h 5m
2026-05-21 TVF737 AGP → AGP May 21, 13:30 UTCMay 21, 15:50 UTC2h 20m
2026-05-21 TVF56XJ HER → ORY May 21, 04:20 UTCMay 21, 07:35 UTC3h 15m
2026-05-20 TVF47NA - May 20, 17:10 UTCMay 20, 19:50 UTC2h 40m
2026-05-20 TVF735B RAK → ORY May 20, 13:20 UTCMay 20, 15:55 UTC2h 35m
2026-05-20 TVF783R - May 20, 08:55 UTCMay 20, 11:25 UTC2h 30m
2026-05-20 TVF34BR LIS → ORY May 20, 05:20 UTCMay 20, 07:25 UTC2h 5m
2026-05-19 TVF34QV ORY → LIS May 19, 19:50 UTCMay 19, 22:00 UTC2h 10m
2026-05-19 TVF36UQ SKG → ORY May 19, 15:30 UTCMay 19, 18:10 UTC2h 40m
2026-05-19 TVF54PL ORY → SKG May 19, 11:55 UTCMay 19, 14:25 UTC2h 30m
2026-05-19 TVF8337 TUN → ORY May 19, 04:55 UTCMay 19, 10:15 UTC5h 20m
2026-05-18 TVF15AN LIS → ORY May 18, 19:40 UTCMay 18, 21:25 UTC1h 45m
2026-05-18 TVF46GH ORY → LIS May 18, 16:15 UTCMay 18, 18:30 UTC2h 14m

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

Mode-S 3964EF frequently asked

What is Mode-S code 3964EF?
3964EF is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GZHP.
Where is Mode-S 3964EF registered?
Mode-S code 3964EF is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3964EF broadcasting right now?
Yes. Mode-S 3964EF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3964EF, octal 16262357, decimal 3,761,391.
What flights does 3964EF operate?
Mode-S 3964EF has broadcast 20 distinct callsigns, including TVF89WM, TVF89TU, TVF76UF, TVF46JB, TVF36VX.