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 Jul 26, 20:25 UTC
Flights observed
203
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 20:25 UTC

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 15 2026-07-19
AFR436 - 7 2026-07-05
AFR435 - 7 2026-07-06
AFR406 Air France 7 2026-07-18
AFR199 Air France 7 2026-07-24
AFR491 - 6 2026-06-26
AFR375G Air France 6 2026-07-20
AFR258 Air France 6 2026-06-13
AFR253 - 6 2026-06-13
AFR198 Air France 6 2026-07-23
AFR465 Air France 5 2026-06-24
AFR374F Air France 5 2026-07-20
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
AFR179 Air France 4 2026-07-22
AFR178 Air France 4 2026-07-21
AFR174 Air France 4 2026-06-09
AFR097 Air France 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR416 CDG → FOR Jul 26, 11:55 UTCJul 26, 20:15 UTC8h 20m
2026-07-25 AFR511 GIG → CDG Jul 25, 22:25 UTCJul 26, 09:05 UTC10h 41m
2026-07-25 AFR512 CDG → GIG Jul 25, 08:55 UTCJul 25, 19:25 UTC10h 30m
2026-07-24 AFR199 BKK → CDG Jul 24, 05:15 UTCJul 24, 17:50 UTC12h 35m
2026-07-23 AFR198 CDG → BKK Jul 23, 15:05 UTCJul 24, 02:05 UTC11h 0m
2026-07-23 AFR097 MCO → CDG Jul 23, 03:00 UTCJul 23, 11:35 UTC8h 35m
2026-07-22 AFR096 CDG → MCO Jul 22, 14:55 UTCJul 22, 23:20 UTC8h 25m
2026-07-22 AFR179 MEX → CDG Jul 22, 01:15 UTCJul 22, 11:35 UTC10h 20m
2026-07-21 AFR178 CDG → MEX Jul 21, 11:55 UTCJul 21, 22:20 UTC10h 25m
2026-07-20 AFR375G YVR → CDG Jul 20, 20:45 UTCJul 21, 05:30 UTC8h 44m
2026-07-20 AFR374F CDG → YVR Jul 20, 08:55 UTCJul 20, 18:25 UTC9h 30m
2026-07-19 AFR407 SCL → CDG Jul 19, 17:15 UTCJul 20, 03:15 UTC10h 0m
2026-07-19 AFR407 SCL → CDG Jul 19, 14:25 UTCJul 19, 14:35 UTC10m
2026-07-18 AFR406 CDG → SCL Jul 18, 21:55 UTCJul 18, 23:10 UTC1h 15m
2026-07-18 AFR199 - Jul 18, 04:35 UTCJul 18, 16:05 UTC11h 30m
2026-07-17 AFR198 - Jul 17, 14:55 UTCJul 18, 01:50 UTC10h 55m
2026-07-17 AFR179 - Jul 17, 01:49 UTCJul 17, 12:04 UTC10h 15m
2026-07-16 AFR178 - Jul 16, 12:05 UTCJul 16, 23:05 UTC11h 0m
2026-07-15 AFR407 - Jul 15, 14:30 UTCJul 16, 03:20 UTC12h 50m
2026-07-14 AFR406 - Jul 14, 21:40 UTCJul 14, 22:45 UTC1h 4m
2026-07-14 AFR199 - Jul 14, 07:35 UTCJul 14, 17:30 UTC9h 55m
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

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 Jul 26, 20:25 UTC.
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, AFR406, AFR199.