Apparatus

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sensors Mode-S transponder

3965B4

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GZNU · BOEING 777-300ER

Hex
3965B4
Octal
16262664
Decimal
3,761,588
Country
FR
Tail
F-GZNU
Type
B77W
No current signal · last broadcast 2d ago
Flights observed
76
Distinct callsigns
14
Country
FR
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 3965B4.

Country allocation

The ICAO 24-bit address 3965B4 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 14 distinct

Callsign Airline Flights Last seen
AFR719 Air France 13 2026-06-08
AFR442 Air France 13 2026-06-07
AFR718 Air France 12 2026-06-08
AFR443 Air France 9 2026-06-08
AFR356G Air France 7 2026-05-17
AFR357E Air France 6 2026-05-17
AFR111 Air France 6 2026-06-06
AFR116 Air France 4 2026-06-05
AFR829A Air France 1 2026-05-12
AFR719A Air France 1 2026-05-29
AFR4081 Air France 1 2026-05-12
AFR373V Air France 1 2026-04-19
AFR187 Air France 1 2026-05-23
AFR186 Air France 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-08 AFR719 DSS → CDG Jun 8, 23:35 UTCJun 9, 04:35 UTC5h 0m
2026-06-08 AFR718 CDG → DSS Jun 8, 15:35 UTCJun 8, 20:45 UTC5h 10m
2026-06-08 AFR443 GIG → CDG Jun 8, 01:25 UTCJun 8, 11:45 UTC10h 20m
2026-06-07 AFR442 CDG → GIG Jun 7, 11:45 UTCJun 7, 22:25 UTC10h 40m
2026-06-06 AFR111 PVG → CDG Jun 6, 15:19 UTCJun 7, 03:25 UTC12h 5m
2026-06-06 AFR111 PVG → CDG Jun 6, 07:45 UTCJun 7, 03:25 UTC19h 40m
2026-06-06 AFR111 PVG → CDG Jun 6, 01:35 UTCJun 7, 01:00 UTC23h 25m
2026-06-05 AFR116 CDG → PVG Jun 5, 23:05 UTCJun 6, 23:00 UTC23h 55m
2026-06-05 AFR116 CDG → PVG Jun 5, 21:45 UTCJun 6, 15:44 UTC18h 0m
2026-06-04 AFR111 PVG → CDG Jun 4, 15:15 UTCJun 5, 03:25 UTC12h 10m
2026-06-04 AFR111 PVG → CDG Jun 4, 07:35 UTCJun 5, 03:25 UTC19h 50m
2026-06-04 AFR111 PVG → CDG Jun 4, 01:15 UTCJun 5, 01:00 UTC23h 45m
2026-06-03 AFR116 CDG → PVG Jun 3, 23:05 UTCJun 4, 23:00 UTC23h 55m
2026-06-03 AFR116 CDG → PVG Jun 3, 21:50 UTCJun 4, 15:35 UTC17h 45m
2026-06-02 AFR719 DSS → CDG Jun 2, 23:15 UTCJun 3, 04:20 UTC5h 5m
2026-06-02 AFR718 CDG → DSS Jun 2, 15:35 UTCJun 2, 20:30 UTC4h 55m
2026-05-31 AFR719 DSS → CDG May 31, 23:30 UTCJun 1, 04:30 UTC5h 0m
2026-05-31 AFR718 CDG → DSS May 31, 15:20 UTCMay 31, 20:15 UTC4h 55m
2026-05-31 AFR443 GIG → CDG May 31, 08:25 UTCMay 31, 11:50 UTC3h 25m
2026-05-30 AFR442 CDG → GIG May 30, 22:30 UTCMay 30, 22:40 UTC10m
2026-05-30 AFR442 CDG → GIG May 30, 12:05 UTCMay 30, 21:35 UTC9h 30m
2026-05-29 AFR719 DSS → CDG May 29, 23:30 UTCMay 30, 04:25 UTC4h 55m
2026-05-29 AFR718 CDG → DSS May 29, 16:15 UTCMay 29, 21:00 UTC4h 45m
2026-05-29 AFR719A DSS → CDG May 29, 00:50 UTCMay 29, 05:55 UTC5h 5m
2026-05-28 AFR718 CDG → DSS May 28, 17:20 UTCMay 28, 22:20 UTC5h 0m
2026-05-28 AFR443 GIG → CDG May 28, 01:45 UTCMay 28, 12:05 UTC10h 20m
2026-05-27 AFR442 CDG → GIG May 27, 22:30 UTCMay 27, 22:45 UTC15m
2026-05-27 AFR442 CDG → GIG May 27, 12:00 UTCMay 27, 21:45 UTC9h 45m
2026-05-26 AFR719 DSS → CDG May 26, 23:35 UTCMay 27, 04:30 UTC4h 55m
2026-05-26 AFR718 CDG → DSS May 26, 15:54 UTCMay 26, 21:00 UTC5h 5m
2026-05-26 AFR443 GIG → CDG May 26, 01:24 UTCMay 26, 11:39 UTC10h 15m
2026-05-25 AFR442 CDG → GIG May 25, 11:55 UTCMay 25, 22:34 UTC10h 40m
2026-05-24 AFR719 DSS → CDG May 24, 23:20 UTCMay 25, 04:20 UTC5h 0m
2026-05-24 AFR718 CDG → DSS May 24, 15:35 UTCMay 24, 20:45 UTC5h 10m
2026-05-23 AFR187 CDG → LAS May 23, 00:15 UTCMay 23, 14:30 UTC14h 14m
2026-05-22 AFR186 LAS → CDG May 22, 08:35 UTCMay 22, 21:25 UTC12h 50m
2026-05-22 AFR719 DSS → CDG May 22, 02:10 UTCMay 22, 04:25 UTC2h 15m
2026-05-21 AFR719 DSS → CDG May 21, 23:35 UTCMay 21, 23:55 UTC20m
2026-05-21 AFR718 CDG → DSS May 21, 16:01 UTCMay 21, 21:10 UTC5h 10m
2026-05-21 AFR443 GIG → CDG May 21, 01:15 UTCMay 21, 11:15 UTC10h 0m
2026-05-20 AFR442 CDG → GIG May 20, 11:40 UTCMay 20, 22:20 UTC10h 40m
2026-05-19 AFR719 DSS → CDG May 19, 23:25 UTCMay 20, 04:25 UTC5h 0m
2026-05-19 AFR718 CDG → DSS May 19, 15:35 UTCMay 19, 20:45 UTC5h 10m
2026-05-19 AFR443 GIG → CDG May 19, 01:40 UTCMay 19, 12:05 UTC10h 25m
2026-05-18 AFR442 CDG → GIG May 18, 11:50 UTCMay 18, 22:20 UTC10h 29m
2026-05-17 AFR357E YYZ → CDG May 17, 22:20 UTCMay 18, 05:05 UTC6h 45m
2026-05-17 AFR356G CDG → YYZ May 17, 12:05 UTCMay 17, 19:50 UTC7h 45m
2026-05-16 AFR357E YYZ → CDG May 16, 23:00 UTCMay 17, 05:40 UTC6h 40m
2026-05-16 AFR356G CDG → YYZ May 16, 12:35 UTCMay 16, 20:10 UTC7h 35m
2026-05-12 AFR829A NBO → CDG May 12, 11:20 UTCMay 13, 06:30 UTC19h 10m

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

Mode-S 3965B4 frequently asked

What is Mode-S code 3965B4?
3965B4 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GZNU.
Where is Mode-S 3965B4 registered?
Mode-S code 3965B4 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3965B4 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3965B4, octal 16262664, decimal 3,761,588.
What flights does 3965B4 operate?
Mode-S 3965B4 has broadcast 14 distinct callsigns, including AFR719, AFR442, AFR718, AFR443, AFR356G.