Apparatus

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sensors Mode-S transponder

39CF02

ICAO 24-bit transponder address · allocated to France

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

Hex
39CF02
Octal
16347402
Decimal
3,788,546
Country
FR
Tail
F-HTYC
Type
A359
No current signal · last broadcast 5h ago
Flights observed
29
Distinct callsigns
7
Country
FR
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 39CF02.

Country allocation

The ICAO 24-bit address 39CF02 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 7 distinct

Callsign Airline Flights Last seen
AFR253 Air France 8 2026-04-17
AFR258 Air France 6 2026-04-16
AFR551 Air France 4 2026-04-18
AFR194 Air France 4 2026-04-15
AFR191 Air France 4 2026-04-16
AFR570 Air France 2 2026-04-17
AFR490 Air France 1 2026-04-18

Recent flights last 29

DateFlightRouteTakeoffLandingDuration
2026-04-18 AFR490 CDG → PTY Apr 18, 14:25 UTCApr 18, 15:25 UTC1h 0m
2026-04-18 AFR551 CAI → CDG Apr 18, 05:25 UTCApr 18, 05:45 UTC20m
2026-04-18 AFR551 CAI → CDG Apr 18, 04:45 UTCApr 18, 05:45 UTC1h 0m
2026-04-18 AFR551 CAI → CDG Apr 18, 03:25 UTCApr 18, 05:20 UTC1h 55m
2026-04-18 AFR551 CAI → CDG Apr 18, 01:45 UTCApr 18, 03:20 UTC1h 35m
2026-04-17 AFR570 CDG → CAI Apr 17, 21:25 UTCApr 17, 22:50 UTC1h 25m
2026-04-17 AFR570 CDG → CAI Apr 17, 19:25 UTCApr 17, 21:20 UTC1h 55m
2026-04-17 AFR253 SGN → CDG Apr 17, 15:20 UTCApr 17, 15:45 UTC25m
2026-04-17 AFR253 SGN → CDG Apr 17, 13:20 UTCApr 17, 15:15 UTC1h 54m
2026-04-17 AFR253 SGN → CDG Apr 17, 11:20 UTCApr 17, 12:20 UTC1h 0m
2026-04-17 AFR253 SGN → CDG Apr 17, 11:00 UTCApr 17, 11:15 UTC15m
2026-04-17 AFR253 SGN → CDG Apr 17, 07:20 UTCApr 17, 07:40 UTC20m
2026-04-17 AFR253 SGN → CDG Apr 17, 05:20 UTCApr 17, 07:15 UTC1h 55m
2026-04-17 AFR253 SGN → CDG Apr 17, 03:45 UTCApr 17, 04:40 UTC56m
2026-04-17 AFR253 SGN → CDG Apr 17, 02:59 UTCApr 17, 03:10 UTC10m
2026-04-16 AFR258 CDG → SGN Apr 16, 23:20 UTCApr 16, 23:50 UTC30m
2026-04-16 AFR258 CDG → SGN Apr 16, 21:14 UTCApr 16, 22:54 UTC1h 40m
2026-04-16 AFR258 CDG → SGN Apr 16, 19:15 UTCApr 16, 21:10 UTC1h 55m
2026-04-16 AFR258 CDG → SGN Apr 16, 15:50 UTCApr 16, 16:40 UTC50m
2026-04-16 AFR258 CDG → SGN Apr 16, 13:15 UTCApr 16, 15:10 UTC1h 55m
2026-04-16 AFR258 CDG → SGN Apr 16, 12:29 UTCApr 16, 13:05 UTC35m
2026-04-16 AFR191 BLR → CDG Apr 16, 05:09 UTCApr 16, 06:49 UTC1h 40m
2026-04-16 AFR191 BLR → CDG Apr 16, 03:09 UTCApr 16, 05:05 UTC1h 55m
2026-04-16 AFR191 BLR → CDG Apr 16, 01:50 UTCApr 16, 03:04 UTC1h 15m
2026-04-15 AFR191 BLR → CDG Apr 15, 20:35 UTCApr 15, 20:45 UTC10m
2026-04-15 AFR194 CDG → BLR Apr 15, 18:10 UTCApr 15, 18:20 UTC10m
2026-04-15 AFR194 CDG → BLR Apr 15, 13:15 UTCApr 15, 13:30 UTC15m
2026-04-15 AFR194 CDG → BLR Apr 15, 11:00 UTCApr 15, 11:55 UTC55m
2026-04-15 AFR194 CDG → BLR Apr 15, 09:20 UTCApr 15, 10:55 UTC1h 35m

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

Mode-S 39CF02 frequently asked

What is Mode-S code 39CF02?
39CF02 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HTYC.
Where is Mode-S 39CF02 registered?
Mode-S code 39CF02 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39CF02 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39CF02, octal 16347402, decimal 3,788,546.
What flights does 39CF02 operate?
Mode-S 39CF02 has broadcast 7 distinct callsigns, including AFR253, AFR258, AFR551, AFR194, AFR191.