sensors Mode-S transponder

39CF13

ICAO 24-bit transponder address · allocated to France

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

Hex
39CF13
Octal
16347423
Decimal
3,788,563
Country
FR
Tail
F-HTYT
Type
A359
No current signal · last broadcast 10h ago
Flights observed
106
Distinct callsigns
20
Country
FR
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 39CF13.

Country allocation

The ICAO 24-bit address 39CF13 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
AFR435 Air France 9 2026-05-25
AFR174 Air France 7 2026-05-07
AFR551 Air France 6 2026-05-27
AFR173 Air France 6 2026-05-08
AFR570 Air France 5 2026-05-26
AFR436 Air France 5 2026-05-24
AFR722 Air France 4 2026-05-27
AFR579 Air France 3 2026-05-06
AFR578 Air France 3 2026-05-05
AFR477 Air France 3 2026-05-29
AFR468 Air France 3 2026-05-28
AFR194 Air France 3 2026-05-18
AFR191 Air France 3 2026-05-18
AFR11E Air France 3 2026-05-26
AFR012 Air France 3 2026-05-25
AFR754 Air France 2 2026-05-03
AFR490 Air France 2 2026-05-04
AFR431 Air France 2 2026-05-20
AFR407 Air France 2 2026-05-01
AFR375G Air France 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFR188 CDG → HKG May 30, 09:15 UTCMay 30, 09:50 UTC35m
2026-05-29 AFR188 CDG → HKG May 29, 22:15 UTCMay 30, 02:15 UTC4h 0m
2026-05-29 AFR477 CDG → PTY May 29, 04:00 UTCMay 29, 16:25 UTC12h 25m
2026-05-28 AFR468 CDG → CCS May 28, 12:10 UTCMay 29, 01:35 UTC13h 25m
2026-05-27 AFR722 CDG → FIH May 27, 10:50 UTCMay 28, 05:25 UTC18h 35m
2026-05-27 AFR722 CDG → FIH May 27, 09:15 UTCMay 28, 05:25 UTC20h 10m
2026-05-27 AFR551 CAI → CDG May 27, 01:29 UTCMay 27, 05:24 UTC3h 55m
2026-05-26 AFR570 CDG → CAI May 26, 19:15 UTCMay 26, 22:59 UTC3h 45m
2026-05-26 AFR11E JFK → CDG May 26, 05:34 UTCMay 26, 12:05 UTC6h 30m
2026-05-25 AFR012 CDG → JFK May 25, 19:10 UTCMay 26, 02:29 UTC7h 20m
2026-05-25 AFR435 MEX → CDG May 25, 03:30 UTCMay 25, 13:00 UTC9h 30m
2026-05-24 AFR436 CDG → BOG May 24, 14:40 UTCMay 24, 23:46 UTC9h 6m
2026-05-24 AFR097 MCO → CDG May 24, 03:25 UTCMay 24, 11:35 UTC8h 10m
2026-05-23 AFR096 CDG → MCO May 23, 15:10 UTCMay 24, 00:05 UTC8h 56m
2026-05-23 AFR097 MCO → CDG May 23, 02:55 UTCMay 23, 10:45 UTC7h 50m
2026-05-22 AFR096 CDG → MCO May 22, 15:00 UTCMay 23, 00:15 UTC9h 15m
2026-05-22 AFR093 MIA → CDG May 22, 03:25 UTCMay 22, 11:20 UTC7h 54m
2026-05-21 AFR092 CDG → MIA May 21, 15:20 UTCMay 22, 00:35 UTC9h 15m
2026-05-20 AFR431 SJO → CDG May 20, 21:40 UTCMay 21, 11:35 UTC13h 55m
2026-05-20 AFR431 SJO → CDG May 20, 12:50 UTCMay 21, 11:35 UTC22h 45m
2026-05-20 AFR430 CDG → SJO May 20, 12:05 UTCMay 21, 10:45 UTC22h 40m
2026-05-19 AFR415 FOR → CDG May 19, 23:05 UTCMay 20, 07:15 UTC8h 11m
2026-05-19 AFR416 CDG → FOR May 19, 12:10 UTCMay 19, 20:55 UTC8h 45m
2026-05-18 AFR191 BLR → CDG May 18, 22:10 UTCMay 19, 07:05 UTC8h 55m
2026-05-18 AFR191 BLR → CDG May 18, 21:20 UTCMay 18, 21:35 UTC15m
2026-05-18 AFR194 CDG → BLR May 18, 09:05 UTCMay 18, 18:55 UTC9h 49m
2026-05-17 AFR375G YVR → CDG May 17, 20:20 UTCMay 18, 05:20 UTC9h 0m
2026-05-17 AFR374F CDG → YVR May 17, 08:35 UTCMay 17, 17:30 UTC8h 55m
2026-05-16 AFR267 ICN → CDG May 16, 08:31 UTCMay 16, 16:15 UTC7h 45m
2026-05-16 AFR267 ICN → CDG May 16, 03:20 UTCMay 16, 03:35 UTC15m
2026-05-16 AFR264 CDG → ICN May 16, 00:10 UTCMay 16, 00:30 UTC20m
2026-05-15 AFR264 CDG → ICN May 15, 12:55 UTCMay 15, 17:10 UTC4h 14m
2026-05-15 AFR551 CAI → CDG May 15, 01:55 UTCMay 15, 06:15 UTC4h 20m
2026-05-14 AFR570 CDG → CAI May 14, 19:55 UTCMay 14, 22:35 UTC2h 40m
2026-05-14 AFR435 MEX → CDG May 14, 04:05 UTCMay 14, 13:10 UTC9h 5m
2026-05-13 AFR435 MEX → CDG May 13, 14:51 UTCMay 14, 13:10 UTC22h 20m
2026-05-13 AFR435 MEX → CDG May 13, 14:30 UTCMay 14, 12:45 UTC22h 15m
2026-05-12 AFR705 ABJ → CDG May 12, 16:45 UTCMay 13, 07:50 UTC15h 5m
2026-05-11 AFR435 MEX → CDG May 11, 21:30 UTCMay 12, 13:00 UTC15h 30m
2026-05-11 AFR435 MEX → CDG May 11, 14:50 UTCMay 12, 13:00 UTC22h 11m
2026-05-11 AFR435 MEX → CDG May 11, 14:10 UTCMay 12, 12:45 UTC22h 36m
2026-05-11 AFR35T ATL → CDG May 11, 03:00 UTCMay 11, 10:45 UTC7h 45m
2026-05-10 AFR34N CDG → ATL May 10, 14:59 UTCMay 10, 23:50 UTC8h 50m
2026-05-10 AFR093 MIA → CDG May 10, 03:35 UTCMay 10, 12:05 UTC8h 30m
2026-05-09 AFR092 CDG → MIA May 9, 15:35 UTCMay 10, 00:55 UTC9h 20m
2026-05-09 AFR11E JFK → CDG May 9, 05:30 UTCMay 9, 12:10 UTC6h 40m
2026-05-08 AFR012 CDG → JFK May 8, 19:05 UTCMay 9, 02:20 UTC7h 15m
2026-05-08 AFR173 MEX → CDG May 8, 05:35 UTCMay 8, 15:25 UTC9h 50m
2026-05-07 AFR174 CDG → MEX May 7, 14:20 UTCMay 8, 01:45 UTC11h 25m
2026-05-06 AFR375G YVR → CDG May 6, 21:15 UTCMay 7, 06:30 UTC9h 15m

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

Mode-S 39CF13 frequently asked

What is Mode-S code 39CF13?
39CF13 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HTYT.
Where is Mode-S 39CF13 registered?
Mode-S code 39CF13 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39CF13 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39CF13, octal 16347423, decimal 3,788,563.
What flights does 39CF13 operate?
Mode-S 39CF13 has broadcast 20 distinct callsigns, including AFR435, AFR174, AFR551, AFR173, AFR570.