Apparatus

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sensors Mode-S transponder

39644E

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GZCO · AIRBUS A-330-200

Hex
39644E
Octal
16262116
Decimal
3,761,230
Country
FR
Tail
F-GZCO
Type
A332
No current signal · last broadcast 9d ago
Flights observed
125
Distinct callsigns
20
Country
FR
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 39644E.

Country allocation

The ICAO 24-bit address 39644E 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
AFR499 Air France 51 2026-07-25
AFR194 - 13 2026-06-21
AFR191 - 11 2026-06-21
AFR498 Air France 10 2026-07-26
AFR940 - 8 2026-07-01
AFR832 Air France 5 2026-05-15
AFR863 - 3 2026-06-30
AFR989 - 2 2026-05-27
AFR947 - 2 2026-06-15
AFR63J - 2 2026-07-04
AFR375V Air France 2 2026-06-03
AFR062 - 2 2026-07-04
AFR988 Air France 1 2026-05-26
AFR946 Air France 1 2026-06-14
AFR933 - 1 2026-06-23
AFR930 - 1 2026-06-22
AFR902 Air France 1 2026-05-27
AFR860 Air France 1 2026-05-07
AFR65F Air France 1 2026-06-30
AFR4199 Air France 1 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR498 CDG → SXM Jul 26, 09:15 UTCJul 26, 10:45 UTC1h 30m
2026-07-25 AFR499 SXM → CDG Jul 25, 09:35 UTCJul 26, 03:55 UTC18h 20m
2026-07-25 AFR499 SXM → CDG Jul 25, 09:05 UTCJul 26, 03:55 UTC18h 50m
2026-07-24 AFR499 SXM → CDG Jul 24, 09:35 UTCJul 25, 04:20 UTC18h 45m
2026-07-24 AFR499 SXM → CDG Jul 24, 08:50 UTCJul 25, 04:20 UTC19h 30m
2026-07-23 AFR499 SXM → CDG Jul 23, 09:35 UTCJul 24, 04:05 UTC18h 30m
2026-07-23 AFR499 SXM → CDG Jul 23, 09:00 UTCJul 24, 04:05 UTC19h 5m
2026-07-22 AFR499 SXM → CDG Jul 22, 11:10 UTCJul 23, 03:50 UTC16h 40m
2026-07-21 AFR499 SXM → CDG Jul 21, 09:35 UTCJul 22, 03:55 UTC18h 20m
2026-07-21 AFR499 SXM → CDG Jul 21, 08:50 UTCJul 22, 03:55 UTC19h 5m
2026-07-20 AFR499 SXM → CDG Jul 20, 09:35 UTCJul 21, 03:55 UTC18h 19m
2026-07-20 AFR499 SXM → CDG Jul 20, 08:45 UTCJul 21, 03:55 UTC19h 10m
2026-07-19 AFR499 - Jul 19, 09:35 UTCJul 20, 03:45 UTC18h 10m
2026-07-19 AFR499 - Jul 19, 09:05 UTCJul 20, 03:45 UTC18h 40m
2026-07-18 AFR499 - Jul 18, 09:35 UTCJul 19, 03:45 UTC18h 10m
2026-07-18 AFR499 - Jul 18, 09:15 UTCJul 19, 03:45 UTC18h 30m
2026-07-17 AFR499 - Jul 17, 09:35 UTCJul 18, 03:50 UTC18h 16m
2026-07-17 AFR499 - Jul 17, 08:45 UTCJul 18, 03:50 UTC19h 6m
2026-07-16 AFR499 - Jul 16, 09:35 UTCJul 17, 03:59 UTC18h 25m
2026-07-15 AFR499 - Jul 15, 09:35 UTCJul 16, 03:40 UTC18h 5m
2026-07-15 AFR499 - Jul 15, 09:20 UTCJul 16, 03:40 UTC18h 20m
2026-07-14 AFR499 - Jul 14, 09:35 UTCJul 15, 03:35 UTC17h 59m
2026-07-14 AFR499 - Jul 14, 09:00 UTCJul 15, 03:35 UTC18h 34m
2026-07-13 AFR499 - Jul 13, 09:35 UTCJul 14, 03:50 UTC18h 15m
2026-07-13 AFR499 - Jul 13, 08:50 UTCJul 14, 03:50 UTC19h 0m
2026-07-12 AFR499 - Jul 12, 09:35 UTCJul 13, 03:55 UTC18h 20m
2026-07-12 AFR499 - Jul 12, 09:05 UTCJul 13, 03:55 UTC18h 50m
2026-07-11 AFR499 - Jul 11, 09:35 UTCJul 12, 04:01 UTC18h 25m
2026-07-11 AFR499 - Jul 11, 08:45 UTCJul 12, 04:01 UTC19h 15m
2026-07-10 AFR499 - Jul 10, 09:35 UTCJul 11, 04:01 UTC18h 26m
2026-07-10 AFR499 CDG → CDG Jul 10, 09:00 UTCJul 11, 04:01 UTC19h 1m
2026-07-09 AFR499 - Jul 9, 09:35 UTCJul 10, 04:15 UTC18h 40m
2026-07-09 AFR499 - Jul 9, 09:05 UTCJul 10, 04:15 UTC19h 10m
2026-07-08 AFR371V - Jul 8, 18:00 UTCJul 8, 18:45 UTC45m
2026-07-06 AFR372V - Jul 6, 07:25 UTCJul 6, 08:10 UTC45m
2026-07-04 AFR63J - Jul 4, 21:05 UTCJul 5, 03:40 UTC6h 35m
2026-07-04 AFR062 - Jul 4, 10:45 UTCJul 4, 18:40 UTC7h 55m
2026-07-03 AFR63J - Jul 3, 22:35 UTCJul 4, 05:10 UTC6h 35m
2026-07-03 AFR062 - Jul 3, 11:45 UTCJul 3, 19:30 UTC7h 45m
2026-07-02 AFR498 - Jul 2, 09:35 UTCJul 3, 04:05 UTC18h 30m
2026-07-02 AFR498 - Jul 2, 09:10 UTCJul 3, 04:05 UTC18h 55m
2026-07-01 AFR940 - Jul 1, 11:40 UTCJul 2, 06:00 UTC18h 20m
2026-07-01 AFR940 - Jul 1, 09:40 UTCJul 2, 06:00 UTC20h 20m
2026-06-30 AFR863 - Jun 30, 14:30 UTCJul 1, 05:10 UTC14h 40m
2026-06-30 AFR65F EWR → CDG Jun 30, 04:40 UTCJun 30, 11:15 UTC6h 35m
2026-06-29 AFR064 CDG → EWR Jun 29, 18:10 UTCJun 30, 01:45 UTC7h 36m
2026-06-28 AFR940 - Jun 28, 09:34 UTCJun 29, 05:15 UTC19h 40m
2026-06-28 AFR940 - Jun 28, 09:20 UTCJun 29, 05:15 UTC19h 55m
2026-06-27 AFR499 - Jun 27, 09:34 UTCJun 28, 03:59 UTC18h 25m
2026-06-27 AFR499 - Jun 27, 09:15 UTCJun 28, 03:59 UTC18h 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-GZCO page for operator, model, and routing details .

Mode-S 39644E frequently asked

What is Mode-S code 39644E?
39644E is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GZCO.
Where is Mode-S 39644E registered?
Mode-S code 39644E is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39644E broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39644E, octal 16262116, decimal 3,761,230.
What flights does 39644E operate?
Mode-S 39644E has broadcast 20 distinct callsigns, including AFR499, AFR194, AFR191, AFR498, AFR940.