sensors Mode-S transponder

3965A3

ICAO 24-bit transponder address · allocated to France

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

Hex
3965A3
Octal
16262643
Decimal
3,761,571
Country
FR
Tail
F-GZND
Type
B77W
Broadcasting now · callsign AFR5U · 8,875 ft
Flights observed
48
Distinct callsigns
20
Country
FR
Last broadcast
49m ago

Current position

3965A3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3965A3 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
AFR006 - 6 2026-05-29
AFR5U Air France 5 2026-05-29
AFR279 Air France 4 2026-05-12
AFR274 Air France 4 2026-05-24
AFR8U Air France 3 2026-04-15
AFR24X Air France 3 2026-05-26
AFR025 Air France 3 2026-05-27
AFR021 Air France 3 2026-05-28
AFR020 Air France 3 2026-05-28
AFR007 - 3 2026-04-16
AFR3T Air France 1 2026-05-18
AFR375Y Air France 1 2026-05-06
AFR2N Air France 1 2026-05-08
AFR293 Air France 1 2026-05-25
AFR257 Air France 1 2026-05-17
AFR256 Air France 1 2026-05-16
AFR1U Air France 1 2026-05-08
AFR091 Air France 1 2026-05-24
AFR090 Air France 1 2026-05-23
AFR004 - 1 2026-05-18

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR5U JFK → CDG May 29, 23:10 UTCMay 30, 04:45 UTC5h 35m
2026-05-29 AFR006 - May 29, 12:05 UTCMay 29, 19:25 UTC7h 21m
2026-05-28 AFR021 LAX → CDG May 28, 21:15 UTCMay 29, 07:40 UTC10h 25m
2026-05-28 AFR020 CDG → LAX May 28, 07:30 UTCMay 28, 18:25 UTC10h 55m
2026-05-27 AFR025 LAX → CDG May 27, 01:44 UTCMay 27, 12:00 UTC10h 15m
2026-05-26 AFR24X CDG → LAX May 26, 12:10 UTCMay 26, 23:19 UTC11h 10m
2026-05-25 AFR293 HND → CDG May 25, 16:00 UTCMay 26, 06:20 UTC14h 19m
2026-05-24 AFR274 CDG → HND May 24, 21:30 UTCMay 25, 10:40 UTC13h 10m
2026-05-24 AFR091 MIA → CDG May 24, 00:25 UTCMay 24, 08:35 UTC8h 10m
2026-05-23 AFR090 CDG → MIA May 23, 12:25 UTCMay 23, 21:40 UTC9h 16m
2026-05-22 AFR021 LAX → CDG May 22, 21:15 UTCMay 23, 07:20 UTC10h 4m
2026-05-22 AFR020 CDG → LAX May 22, 07:35 UTCMay 22, 18:20 UTC10h 45m
2026-05-18 AFR3T JFK → CDG May 18, 22:40 UTCMay 19, 05:10 UTC6h 30m
2026-05-18 AFR004 - May 18, 10:25 UTCMay 18, 17:20 UTC6h 55m
2026-05-17 AFR257 SIN → CDG May 17, 14:40 UTCMay 18, 03:40 UTC13h 0m
2026-05-16 AFR256 CDG → SIN May 16, 21:30 UTCMay 17, 09:40 UTC12h 10m
2026-05-16 AFR025 LAX → CDG May 16, 01:45 UTCMay 16, 11:35 UTC9h 51m
2026-05-15 AFR24X CDG → LAX May 15, 12:05 UTCMay 15, 23:15 UTC11h 9m
2026-05-14 AFR5U JFK → CDG May 14, 00:00 UTCMay 14, 06:40 UTC6h 40m
2026-05-13 AFR006 - May 13, 12:40 UTCMay 13, 20:15 UTC7h 35m
2026-05-12 AFR279 HND → CDG May 12, 13:20 UTCMay 13, 03:30 UTC14h 10m
2026-05-11 AFR274 CDG → HND May 11, 21:50 UTCMay 12, 10:55 UTC13h 5m
2026-05-11 AFR025 LAX → CDG May 11, 01:30 UTCMay 11, 12:00 UTC10h 30m
2026-05-10 AFR24X CDG → LAX May 10, 12:00 UTCMay 10, 22:45 UTC10h 45m
2026-05-09 AFR021 LAX → CDG May 9, 21:19 UTCMay 10, 07:40 UTC10h 20m
2026-05-09 AFR020 CDG → LAX May 9, 07:40 UTCMay 9, 18:30 UTC10h 50m
2026-05-08 AFR1U JFK → CDG May 8, 21:10 UTCMay 9, 03:50 UTC6h 40m
2026-05-08 AFR2N CDG → JFK May 8, 06:59 UTCMay 8, 14:30 UTC7h 30m
2026-05-07 AFR279 HND → CDG May 7, 13:15 UTCMay 8, 03:24 UTC14h 9m
2026-05-06 AFR274 CDG → HND May 6, 21:25 UTCMay 7, 10:25 UTC13h 0m
2026-05-06 AFR375Y ORY → CDG May 6, 12:20 UTCMay 6, 12:35 UTC15m
2026-04-16 AF372Y - Apr 16, 15:25 UTCApr 16, 15:35 UTC10m
2026-04-16 AFR007 - Apr 16, 07:09 UTCApr 16, 08:35 UTC1h 25m
2026-04-16 AFR007 - Apr 16, 03:09 UTCApr 16, 03:39 UTC30m
2026-04-16 AFR007 - Apr 16, 02:04 UTCApr 16, 03:04 UTC1h 0m
2026-04-15 AFR8U CDG → JFK Apr 15, 21:05 UTCApr 15, 22:25 UTC1h 20m
2026-04-15 AFR8U CDG → JFK Apr 15, 20:35 UTCApr 15, 21:00 UTC25m
2026-04-15 AFR8U CDG → JFK Apr 15, 15:05 UTCApr 15, 16:35 UTC1h 30m
2026-04-15 AFR5U JFK → CDG Apr 15, 05:00 UTCApr 15, 05:45 UTC45m
2026-04-15 AFR5U JFK → CDG Apr 15, 04:15 UTCApr 15, 04:50 UTC35m
2026-04-14 AFR5U JFK → CDG Apr 14, 23:25 UTCApr 15, 00:50 UTC1h 25m
2026-04-14 AFR006 - Apr 14, 18:55 UTCApr 14, 19:20 UTC25m
2026-04-14 AFR006 - Apr 14, 17:35 UTCApr 14, 18:45 UTC1h 10m
2026-04-14 AFR006 - Apr 14, 12:50 UTCApr 14, 13:40 UTC50m
2026-04-14 AFR006 - Apr 14, 11:50 UTCApr 14, 12:45 UTC55m
2026-04-13 AFR279 HND → CDG Apr 13, 19:00 UTCApr 13, 19:50 UTC50m
2026-04-13 AFR279 HND → CDG Apr 13, 13:55 UTCApr 13, 14:30 UTC35m
2026-04-13 AFR274 CDG → HND Apr 13, 08:30 UTCApr 13, 10:15 UTC1h 45m

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

Mode-S 3965A3 frequently asked

What is Mode-S code 3965A3?
3965A3 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GZND.
Where is Mode-S 3965A3 registered?
Mode-S code 3965A3 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3965A3 broadcasting right now?
Yes. Mode-S 3965A3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3965A3, octal 16262643, decimal 3,761,571.
What flights does 3965A3 operate?
Mode-S 3965A3 has broadcast 20 distinct callsigns, including AFR006, AFR5U, AFR279, AFR274, AFR8U.