Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

39CDCE

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HTOO · AIRBUS A-350-1000

Hex
39CDCE
Octal
16346716
Decimal
3,788,238
Country
FR
Tail
F-HTOO
Type
A35K
No current signal · last broadcast 2h ago
Flights observed
74
Distinct callsigns
8
Country
FR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 39CDCE.

Country allocation

The ICAO 24-bit address 39CDCE 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 8 distinct

Callsign Airline Flights Last seen
FWI41D Air Caraïbes 37 2026-05-28
FWI11B Air Caraïbes 15 2026-05-25
FWI40J Air Caraïbes 9 2026-05-29
FWI10A Air Caraïbes 5 2026-05-24
FWI537 Air Caraïbes 4 2026-04-18
FWI57Q Air Caraïbes 2 2026-05-19
FWI5617 Air Caraïbes 1 2026-04-29
FWI46E Air Caraïbes 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 FWI40J ORY → PTP May 29, 09:10 UTCMay 30, 03:30 UTC18h 20m
2026-05-28 FWI41D PTP → ORY May 28, 09:35 UTCMay 29, 04:30 UTC18h 55m
2026-05-28 FWI41D PTP → ORY May 28, 09:20 UTCMay 29, 04:30 UTC19h 10m
2026-05-27 FWI41D PTP → ORY May 27, 09:35 UTCMay 28, 04:20 UTC18h 45m
2026-05-27 FWI41D PTP → ORY May 27, 09:05 UTCMay 28, 04:20 UTC19h 15m
2026-05-25 FWI11B FDF → ORY May 25, 10:30 UTCMay 26, 05:10 UTC18h 40m
2026-05-24 FWI10A ORY → FDF May 24, 10:55 UTCMay 25, 05:30 UTC18h 35m
2026-05-23 FWI11B FDF → ORY May 23, 10:30 UTCMay 24, 05:10 UTC18h 40m
2026-05-22 FWI11B FDF → ORY May 22, 11:35 UTCMay 23, 05:40 UTC18h 5m
2026-05-22 FWI11B FDF → ORY May 22, 10:45 UTCMay 23, 05:40 UTC18h 54m
2026-05-21 FWI41D PTP → ORY May 21, 09:35 UTCMay 22, 04:25 UTC18h 50m
2026-05-21 FWI40J ORY → PTP May 21, 09:10 UTCMay 22, 04:25 UTC19h 15m
2026-05-20 FWI10A ORY → FDF May 20, 10:40 UTCMay 21, 05:15 UTC18h 35m
2026-05-19 FWI57Q ORY → CAY May 19, 11:35 UTCMay 20, 06:20 UTC18h 46m
2026-05-19 FWI57Q ORY → CAY May 19, 11:10 UTCMay 20, 06:20 UTC19h 11m
2026-05-18 FWI11B FDF → ORY May 18, 11:35 UTCMay 19, 05:35 UTC17h 59m
2026-05-18 FWI10A ORY → FDF May 18, 10:45 UTCMay 19, 05:35 UTC18h 49m
2026-05-17 FWI10A ORY → FDF May 17, 10:55 UTCMay 18, 05:05 UTC18h 10m
2026-05-16 FWI10A ORY → FDF May 16, 10:35 UTCMay 17, 05:15 UTC18h 39m
2026-05-15 FWI40J ORY → PTP May 15, 09:35 UTCMay 16, 04:50 UTC19h 14m
2026-05-14 FWI41D PTP → ORY May 14, 09:35 UTCMay 15, 05:00 UTC19h 25m
2026-05-14 FWI40J ORY → PTP May 14, 09:20 UTCMay 15, 05:00 UTC19h 40m
2026-05-13 FWI41D PTP → ORY May 13, 09:35 UTCMay 14, 05:30 UTC19h 55m
2026-05-13 FWI40J ORY → PTP May 13, 09:15 UTCMay 14, 05:30 UTC20h 15m
2026-05-12 FWI41D PTP → ORY May 12, 09:35 UTCMay 13, 04:35 UTC19h 0m
2026-05-12 FWI41D PTP → ORY May 12, 09:25 UTCMay 13, 04:35 UTC19h 10m
2026-05-11 FWI41D PTP → ORY May 11, 09:35 UTCMay 12, 04:45 UTC19h 10m
2026-05-10 FWI41D PTP → ORY May 10, 09:35 UTCMay 11, 04:25 UTC18h 50m
2026-05-10 FWI41D PTP → ORY May 10, 09:24 UTCMay 11, 04:25 UTC19h 0m
2026-05-09 FWI41D PTP → ORY May 9, 09:35 UTCMay 10, 04:55 UTC19h 20m
2026-05-09 FWI41D PTP → ORY May 9, 09:25 UTCMay 10, 04:55 UTC19h 30m
2026-05-08 FWI41D PTP → ORY May 8, 09:34 UTCMay 9, 04:25 UTC18h 50m
2026-05-08 FWI41D PTP → ORY May 8, 09:09 UTCMay 9, 04:25 UTC19h 15m
2026-05-07 FWI41D PTP → ORY May 7, 09:35 UTCMay 8, 04:29 UTC18h 55m
2026-05-07 FWI41D PTP → ORY May 7, 09:20 UTCMay 8, 04:29 UTC19h 9m
2026-05-06 FWI11B FDF → ORY May 6, 11:35 UTCMay 7, 05:40 UTC18h 4m
2026-05-06 FWI11B FDF → ORY May 6, 10:30 UTCMay 7, 05:40 UTC19h 9m
2026-05-04 FWI41D PTP → ORY May 4, 09:35 UTCMay 5, 04:40 UTC19h 6m
2026-05-04 FWI41D PTP → ORY May 4, 09:15 UTCMay 5, 04:40 UTC19h 26m
2026-05-03 FWI41D PTP → ORY May 3, 09:35 UTCMay 4, 04:24 UTC18h 50m
2026-05-03 FWI41D PTP → ORY May 3, 09:20 UTCMay 4, 04:24 UTC19h 5m
2026-05-02 FWI11B FDF → ORY May 2, 11:35 UTCMay 3, 05:35 UTC17h 59m
2026-05-02 FWI11B FDF → ORY May 2, 10:45 UTCMay 3, 05:35 UTC18h 49m
2026-05-01 FWI11B FDF → ORY May 1, 10:35 UTCMay 2, 05:25 UTC18h 50m
2026-04-30 FWI11B FDF → ORY Apr 30, 11:35 UTCMay 1, 06:00 UTC18h 26m
2026-04-30 FWI11B FDF → ORY Apr 30, 10:45 UTCMay 1, 06:00 UTC19h 16m
2026-04-29 FWI5617 FDF → ORY Apr 29, 04:39 UTCApr 29, 07:40 UTC3h 0m
2026-04-27 FWI46E ORY → FDF Apr 27, 08:35 UTCApr 27, 09:40 UTC1h 5m
2026-04-26 FWI41D PTP → ORY Apr 26, 09:35 UTCApr 27, 04:25 UTC18h 50m
2026-04-26 FWI41D PTP → ORY Apr 26, 09:00 UTCApr 27, 04:25 UTC19h 25m

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

Mode-S 39CDCE frequently asked

What is Mode-S code 39CDCE?
39CDCE is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HTOO.
Where is Mode-S 39CDCE registered?
Mode-S code 39CDCE is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39CDCE broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39CDCE, octal 16346716, decimal 3,788,238.
What flights does 39CDCE operate?
Mode-S 39CDCE has broadcast 8 distinct callsigns, including FWI41D, FWI11B, FWI40J, FWI10A, FWI537.