Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 1h ago
Flights observed
62
Distinct callsigns
18
Country
FR
Last broadcast
1h 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 18 distinct

Callsign Airline Flights Last seen
AFR499 - 12 2026-06-18
AFR194 - 10 2026-06-20
AFR191 - 9 2026-06-13
AFR498 Air France 6 2026-05-28
AFR832 Air France 5 2026-05-15
AFR940 - 4 2026-06-19
AFR989 - 2 2026-05-27
AFR947 - 2 2026-06-15
AFR863 - 2 2026-06-15
AFR375V Air France 2 2026-06-03
AFR988 Air France 1 2026-05-26
AFR946 Air France 1 2026-06-14
AFR902 Air France 1 2026-05-27
AFR860 Air France 1 2026-05-07
AFR4199 Air France 1 2026-05-21
AFR376V Air France 1 2026-06-01
AFR11E Air France 1 2026-05-04
AFR012 Air France 1 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-20 AFR194 - Jun 20, 08:14 UTCJun 20, 12:34 UTC4h 20m
2026-06-19 AFR940 - Jun 19, 09:34 UTCJun 20, 05:04 UTC19h 30m
2026-06-19 AFR940 - Jun 19, 08:59 UTCJun 20, 05:04 UTC20h 5m
2026-06-18 AFR499 - Jun 18, 09:35 UTCJun 19, 03:39 UTC18h 4m
2026-06-18 AFR499 - Jun 18, 08:50 UTCJun 19, 03:39 UTC18h 49m
2026-06-15 AFR863 - Jun 15, 14:30 UTCJun 16, 06:25 UTC15h 55m
2026-06-15 AFR947 - Jun 15, 01:55 UTCJun 15, 04:00 UTC2h 5m
2026-06-14 AFR946 CDG → DLA Jun 14, 10:40 UTCJun 14, 17:20 UTC6h 40m
2026-06-13 AFR191 - Jun 13, 20:05 UTCJun 14, 06:30 UTC10h 25m
2026-06-13 AFR194 - Jun 13, 08:30 UTCJun 13, 17:45 UTC9h 15m
2026-06-12 AFR940 CDG → COO Jun 12, 09:35 UTCJun 13, 05:15 UTC19h 39m
2026-06-12 AFR940 CDG → COO Jun 12, 08:50 UTCJun 13, 05:15 UTC20h 24m
2026-06-11 AFR863 LFW → CDG Jun 11, 14:15 UTCJun 12, 05:05 UTC14h 51m
2026-06-09 AFR191 BLR → CDG Jun 9, 21:25 UTCJun 10, 06:45 UTC9h 20m
2026-06-09 AFR191 BLR → CDG Jun 9, 20:20 UTCJun 9, 20:45 UTC25m
2026-06-09 AFR194 CDG → BLR Jun 9, 18:20 UTCJun 9, 18:35 UTC15m
2026-06-09 AFR194 CDG → BLR Jun 9, 08:55 UTCJun 9, 13:05 UTC4h 10m
2026-06-07 AFR191 BLR → CDG Jun 7, 21:30 UTCJun 8, 06:55 UTC9h 25m
2026-06-07 AFR191 BLR → CDG Jun 7, 20:20 UTCJun 7, 20:45 UTC25m
2026-06-07 AFR194 CDG → BLR Jun 7, 08:25 UTCJun 7, 17:50 UTC9h 25m
2026-06-06 AFR947 DLA → CDG Jun 6, 10:50 UTCJun 7, 04:10 UTC17h 20m
2026-06-05 AFR191 BLR → CDG Jun 5, 21:50 UTCJun 6, 07:05 UTC9h 15m
2026-06-05 AFR191 BLR → CDG Jun 5, 20:35 UTCJun 5, 21:05 UTC30m
2026-06-05 AFR194 CDG → BLR Jun 5, 18:00 UTCJun 5, 18:20 UTC20m
2026-06-05 AFR194 CDG → BLR Jun 5, 08:45 UTCJun 5, 16:20 UTC7h 35m
2026-06-04 AFR499 SXM → CDG Jun 4, 09:35 UTCJun 5, 03:45 UTC18h 10m
2026-06-04 AFR499 SXM → CDG Jun 4, 08:45 UTCJun 5, 03:45 UTC19h 0m
2026-06-03 AFR375V CDG → HHN Jun 3, 16:15 UTCJun 3, 17:25 UTC1h 10m
2026-06-01 AFR376V CDG → HHN Jun 1, 06:55 UTCJun 1, 07:50 UTC55m
2026-05-28 AFR499 SXM → CDG May 28, 09:35 UTCMay 29, 03:45 UTC18h 10m
2026-05-28 AFR498 CDG → SXM May 28, 08:40 UTCMay 29, 03:45 UTC19h 5m
2026-05-27 AFR902 CDG → NSI May 27, 12:05 UTCMay 28, 05:50 UTC17h 45m
2026-05-27 AFR989 - May 27, 01:34 UTCMay 27, 03:29 UTC1h 55m
2026-05-26 AFR989 - May 26, 20:20 UTCMay 26, 20:29 UTC10m
2026-05-26 AFR988 POB → POB May 26, 09:25 UTCMay 26, 11:05 UTC1h 40m
2026-05-24 AFR191 BLR → CDG May 24, 20:20 UTCMay 25, 06:40 UTC10h 20m
2026-05-24 AFR194 CDG → BLR May 24, 17:35 UTCMay 24, 17:55 UTC20m
2026-05-24 AFR194 CDG → BLR May 24, 08:15 UTCMay 24, 15:50 UTC7h 35m
2026-05-23 AFR499 SXM → CDG May 23, 09:35 UTCMay 24, 03:50 UTC18h 15m
2026-05-23 AFR498 CDG → SXM May 23, 09:15 UTCMay 24, 03:50 UTC18h 35m
2026-05-21 AFR4199 LOS → CDG May 21, 15:20 UTCMay 22, 06:30 UTC15h 10m
2026-05-20 AFR191 BLR → CDG May 20, 22:10 UTCMay 21, 07:20 UTC9h 10m
2026-05-20 AFR194 CDG → BLR May 20, 10:05 UTCMay 20, 19:20 UTC9h 15m
2026-05-17 AFR499 SXM → CDG May 17, 09:35 UTCMay 18, 03:35 UTC18h 0m
2026-05-17 AFR498 CDG → SXM May 17, 08:55 UTCMay 18, 03:35 UTC18h 40m
2026-05-16 AFR499 SXM → CDG May 16, 09:35 UTCMay 17, 03:50 UTC18h 15m
2026-05-16 AFR498 CDG → SXM May 16, 08:51 UTCMay 17, 03:50 UTC19h 0m
2026-05-15 AFR832 CDG → PNR May 15, 12:05 UTCMay 16, 06:10 UTC18h 5m
2026-05-12 AFR499 SXM → CDG May 12, 13:40 UTCMay 13, 07:50 UTC18h 10m
2026-05-11 AFR832 CDG → PNR May 11, 07:45 UTCMay 11, 10:15 UTC2h 30m

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 1h 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 18 distinct callsigns, including AFR499, AFR194, AFR191, AFR498, AFR832.