Apparatus

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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
183
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 - 12 2026-06-30
AFR436 - 7 2026-07-05
AFR435 - 7 2026-07-06
AFR491 - 6 2026-06-26
AFR258 Air France 6 2026-06-13
AFR253 - 6 2026-06-13
AFR465 Air France 5 2026-06-24
AFR406 - 5 2026-06-29
AFR375G - 5 2026-07-04
AFR199 - 5 2026-07-14
AFR754 Air France 4 2026-05-23
AFR52X - 4 2026-04-13
AFR378E Air France 4 2026-04-16
AFR374F - 4 2026-07-04
AFR198 - 4 2026-07-13
AFR191 Air France 4 2026-05-14
AFR174 Air France 4 2026-06-09
AFR598 Air France 3 2026-04-25
AFR579 - 3 2026-07-10
AFR570 Air France 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFR199 - Jul 14, 07:35 UTCJul 14, 09:00 UTC1h 25m
2026-07-14 AFR199 - Jul 14, 05:05 UTCJul 14, 06:00 UTC55m
2026-07-13 AFR198 - Jul 13, 14:45 UTCJul 14, 01:25 UTC10h 40m
2026-07-13 AFR097 - Jul 13, 03:15 UTCJul 13, 11:25 UTC8h 10m
2026-07-12 AFR096 - Jul 12, 14:55 UTCJul 12, 23:40 UTC8h 45m
2026-07-12 AFR179 - Jul 12, 02:05 UTCJul 12, 12:10 UTC10h 5m
2026-07-11 AFR178 - Jul 11, 11:40 UTCJul 11, 22:40 UTC11h 0m
2026-07-10 AFR579 - Jul 10, 16:30 UTCJul 11, 06:05 UTC13h 35m
2026-07-10 AFR989 NSI → CDG Jul 10, 06:10 UTCJul 10, 13:00 UTC6h 50m
2026-07-09 AFR988 - Jul 9, 16:50 UTCJul 9, 17:00 UTC10m
2026-07-09 AFR988 - Jul 9, 10:35 UTCJul 9, 12:15 UTC1h 40m
2026-07-08 AFR377V TLS → CDG Jul 8, 20:35 UTCJul 8, 21:40 UTC1h 5m
2026-07-07 AFR376V CDG → TLS Jul 7, 09:30 UTCJul 7, 10:30 UTC1h 0m
2026-07-06 AFR579 - Jul 6, 16:40 UTCJul 7, 06:45 UTC14h 5m
2026-07-06 AFR435 - Jul 6, 04:00 UTCJul 6, 12:55 UTC8h 55m
2026-07-06 AFR435 - Jul 6, 03:05 UTCJul 6, 03:20 UTC15m
2026-07-05 AFR436 - Jul 5, 14:30 UTCJul 6, 00:25 UTC9h 55m
2026-07-04 AFR375G YVR → CDG Jul 4, 20:30 UTCJul 5, 05:15 UTC8h 45m
2026-07-04 AFR374F - Jul 4, 08:50 UTCJul 4, 18:30 UTC9h 40m
2026-07-03 AFR199 - Jul 3, 05:20 UTCJul 3, 18:00 UTC12h 40m
2026-07-02 AFR198 - Jul 2, 15:05 UTCJul 3, 03:05 UTC12h 0m
2026-07-02 AFR179 - Jul 2, 01:55 UTCJul 2, 12:05 UTC10h 10m
2026-07-01 AFR178 - Jul 1, 11:40 UTCJul 1, 23:15 UTC11h 35m
2026-06-30 AFR407 - Jun 30, 16:35 UTCJul 1, 03:55 UTC11h 20m
2026-06-30 AFR407 - Jun 30, 14:50 UTCJun 30, 15:00 UTC10m
2026-06-29 AFR406 - Jun 29, 21:44 UTCJun 30, 08:25 UTC10h 41m
2026-06-29 AFR199 - Jun 29, 06:05 UTCJun 29, 18:39 UTC12h 35m
2026-06-28 AFR198 - Jun 28, 15:34 UTCJun 29, 03:49 UTC12h 15m
2026-06-28 AFR093 - Jun 28, 03:40 UTCJun 28, 11:45 UTC8h 5m
2026-06-27 AFR092 CDG → MIA Jun 27, 16:00 UTCJun 28, 01:04 UTC9h 5m
2026-06-26 AFR491 - Jun 26, 22:14 UTCJun 27, 12:45 UTC14h 30m
2026-06-26 AFR491 - Jun 26, 15:05 UTCJun 27, 12:45 UTC21h 40m
2026-06-26 AFR491 - Jun 26, 14:25 UTCJun 27, 12:45 UTC22h 20m
2026-06-25 AFR375G - Jun 25, 22:49 UTCJun 26, 05:30 UTC6h 40m
2026-06-25 AFR375G - Jun 25, 20:30 UTCJun 25, 20:45 UTC15m
2026-06-25 AFR374F - Jun 25, 09:05 UTCJun 25, 18:15 UTC9h 10m
2026-06-24 AFR465 SSA → CDG Jun 24, 11:05 UTCJun 25, 05:44 UTC18h 40m
2026-06-24 AFR465 SSA → CDG Jun 24, 09:05 UTCJun 25, 05:44 UTC20h 40m
2026-06-24 AFR476 CDG → HAV Jun 24, 08:45 UTCJun 25, 05:44 UTC21h 0m
2026-06-23 AFR75K - Jun 23, 22:25 UTCJun 24, 05:20 UTC6h 55m
2026-06-23 AFR074 - Jun 23, 11:45 UTCJun 23, 20:10 UTC8h 25m
2026-06-22 AFR099 - Jun 22, 22:40 UTCJun 23, 07:29 UTC8h 50m
2026-06-22 AFR98G - Jun 22, 09:45 UTCJun 22, 19:49 UTC10h 5m
2026-06-22 AFR741 SDQ → CDG Jun 22, 04:09 UTCJun 22, 06:29 UTC2h 20m
2026-06-21 AFR740 PTP → CDG Jun 21, 11:00 UTCJun 22, 04:04 UTC17h 5m
2026-06-20 AFR337P - Jun 20, 21:10 UTCJun 21, 06:19 UTC9h 10m
2026-06-20 AFR338 - Jun 20, 08:34 UTCJun 20, 17:54 UTC9h 20m
2026-06-19 AFR407 FLM → CDG Jun 19, 16:25 UTCJun 20, 03:49 UTC11h 25m
2026-06-19 AFR407 - Jun 19, 14:34 UTCJun 19, 14:49 UTC15m
2026-06-18 AFR406 - Jun 18, 22:05 UTCJun 19, 08:59 UTC10h 54m

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, AFR436, AFR435, AFR491, AFR258.