sensors Mode-S transponder

39CF0C

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HTYM · AIRBUS A-350-900

Hex
39CF0C
Octal
16347414
Decimal
3,788,556
Country
FR
Tail
F-HTYM
Type
A359
No current signal · last broadcast 1h ago
Flights observed
96
Distinct callsigns
20
Country
FR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 39CF0C.

Country allocation

The ICAO 24-bit address 39CF0C 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
AFR407 Air France 8 2026-05-09
AFR754 Air France 4 2026-05-23
AFR52X - 4 2026-04-13
AFR378E Air France 4 2026-04-16
AFR191 Air France 4 2026-05-14
AFR598 Air France 3 2026-04-25
AFR570 Air France 3 2026-05-20
AFR551 Air France 3 2026-05-21
AFR491 Air France 3 2026-04-21
AFR477 Air France 3 2026-05-18
AFR468 Air France 3 2026-05-17
AFR436 Air France 3 2026-05-25
AFR431 Air France 3 2026-04-15
AFR430 Air France 3 2026-04-14
AFR406 Air France 3 2026-05-08
AFR377 Air France 3 2026-04-17
AFR194 Air France 3 2026-05-14
AFR174 Air France 3 2026-05-03
AFR868 Air France 2 2026-04-26
AFR722 Air France 2 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR995 JNB → CDG May 29, 17:00 UTCMay 30, 03:45 UTC10h 45m
2026-05-28 AFR990 CDG → JNB May 28, 21:45 UTCMay 29, 07:45 UTC10h 0m
2026-05-28 AFR199 BKK → CDG May 28, 04:45 UTCMay 28, 17:05 UTC12h 20m
2026-05-27 AFR198 CDG → BKK May 27, 15:20 UTCMay 28, 00:05 UTC8h 45m
2026-05-27 AFR11E JFK → CDG May 27, 05:09 UTCMay 27, 11:50 UTC6h 40m
2026-05-26 AFR012 CDG → JFK May 26, 18:50 UTCMay 27, 01:54 UTC7h 5m
2026-05-26 AFR435 MEX → CDG May 26, 03:35 UTCMay 26, 13:10 UTC9h 35m
2026-05-25 AFR436 CDG → BOG May 25, 14:20 UTCMay 26, 00:29 UTC10h 10m
2026-05-24 AFR337P SEA → CDG May 24, 21:15 UTCMay 25, 06:20 UTC9h 5m
2026-05-24 AFR338 CDG → SEA May 24, 08:35 UTCMay 24, 18:00 UTC9h 25m
2026-05-23 AFR754 CDG → BZV May 23, 09:25 UTCMay 24, 04:55 UTC19h 31m
2026-05-21 AFR754 CDG → BZV May 21, 09:15 UTCMay 22, 05:00 UTC19h 45m
2026-05-21 AFR551 CAI → CDG May 21, 01:35 UTCMay 21, 05:40 UTC4h 5m
2026-05-20 AFR570 CDG → CAI May 20, 19:05 UTCMay 20, 22:30 UTC3h 25m
2026-05-20 AFR181 SIN → CDG May 20, 03:10 UTCMay 20, 15:55 UTC12h 46m
2026-05-19 AFR182 CDG → SIN May 19, 11:40 UTCMay 20, 00:00 UTC12h 20m
2026-05-18 AFR477 CDG → PTY May 18, 03:55 UTCMay 18, 16:20 UTC12h 25m
2026-05-17 AFR468 CDG → CCS May 17, 12:05 UTCMay 18, 01:20 UTC13h 15m
2026-05-17 AFR551 CAI → CDG May 17, 02:00 UTCMay 17, 06:15 UTC4h 15m
2026-05-16 AFR570 CDG → CAI May 16, 19:40 UTCMay 16, 23:10 UTC3h 30m
2026-05-16 AFR477 CDG → PTY May 16, 03:45 UTCMay 16, 15:50 UTC12h 6m
2026-05-15 AFR468 CDG → CCS May 15, 12:00 UTCMay 16, 01:00 UTC12h 59m
2026-05-14 AFR191 BLR → CDG May 14, 21:35 UTCMay 15, 06:00 UTC8h 25m
2026-05-14 AFR191 BLR → CDG May 14, 20:20 UTCMay 14, 20:35 UTC15m
2026-05-14 AFR194 CDG → BLR May 14, 17:35 UTCMay 14, 17:55 UTC20m
2026-05-14 AFR194 CDG → BLR May 14, 08:50 UTCMay 14, 16:25 UTC7h 35m
2026-05-14 AFR722 CDG → FIH May 14, 03:10 UTCMay 14, 05:15 UTC2h 5m
2026-05-13 AFR722 CDG → FIH May 13, 09:20 UTCMay 14, 05:15 UTC19h 55m
2026-05-12 AFR477 CDG → PTY May 12, 04:20 UTCMay 12, 16:20 UTC12h 0m
2026-05-11 AFR468 CDG → CCS May 11, 11:55 UTCMay 11, 21:15 UTC9h 20m
2026-05-10 AFR375G YVR → CDG May 10, 20:54 UTCMay 11, 05:45 UTC8h 50m
2026-05-10 AFR374F CDG → YVR May 10, 09:00 UTCMay 10, 18:35 UTC9h 35m
2026-05-09 AFR407 SCL → CDG May 9, 18:00 UTCMay 10, 03:25 UTC9h 25m
2026-05-09 AFR407 SCL → CDG May 9, 14:55 UTCMay 9, 15:05 UTC10m
2026-05-08 AFR406 CDG → SCL May 8, 22:05 UTCMay 8, 22:55 UTC50m
2026-05-07 AFR258 CDG → SGN May 7, 12:40 UTCMay 8, 05:09 UTC16h 30m
2026-05-06 AFR191 BLR → CDG May 6, 22:10 UTCMay 7, 06:30 UTC8h 20m
2026-05-06 AFR191 BLR → CDG May 6, 20:20 UTCMay 6, 20:36 UTC16m
2026-05-06 AFR194 CDG → BLR May 6, 09:00 UTCMay 6, 18:10 UTC9h 9m
2026-05-06 AFR754 CDG → BZV May 6, 04:15 UTCMay 6, 06:05 UTC1h 50m
2026-05-05 AFR754 CDG → BZV May 5, 09:05 UTCMay 6, 06:05 UTC21h 0m
2026-05-04 AFR407 SCL → CDG May 4, 16:20 UTCMay 5, 03:10 UTC10h 51m
2026-05-04 AFR407 SCL → CDG May 4, 14:35 UTCMay 4, 14:50 UTC15m
2026-05-03 AFR406 CDG → SCL May 3, 21:39 UTCMay 3, 22:45 UTC1h 5m
2026-05-03 AFR173A MEX → CDG May 3, 07:25 UTCMay 3, 17:10 UTC9h 45m
2026-05-03 AFR174 CDG → MEX May 3, 04:45 UTCMay 3, 04:50 UTC5m
2026-05-03 AFR174 CDG → MEX May 3, 00:01 UTCMay 3, 04:15 UTC4h 14m
2026-05-02 AFR174 CDG → MEX May 2, 14:10 UTCMay 2, 21:35 UTC7h 25m
2026-04-30 AFR331E BOS → CDG Apr 30, 02:10 UTCApr 30, 08:40 UTC6h 30m
2026-04-29 AFR332 CDG → BOS Apr 29, 17:05 UTCApr 29, 23:55 UTC6h 49m

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

Mode-S 39CF0C frequently asked

What is Mode-S code 39CF0C?
39CF0C is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HTYM.
Where is Mode-S 39CF0C registered?
Mode-S code 39CF0C is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39CF0C 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 39CF0C, octal 16347414, decimal 3,788,556.
What flights does 39CF0C operate?
Mode-S 39CF0C has broadcast 20 distinct callsigns, including AFR407, AFR754, AFR52X, AFR378E, AFR191.