sensors Mode-S transponder
39CF09
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-HTYJ · AIRBUS A-350-900
- Hex
- 39CF09
- Octal
- 16347411
- Decimal
- 3,788,553
- Country
- FR
- Tail
- F-HTYJ
- Type
- A359
- Flights observed
- 181
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- Jul 26, 11:45 UTC
Last known position
Country allocation
The ICAO 24-bit address 39CF09 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 |
|---|---|---|---|
| AFR253 | Air France | 10 | 2026-07-23 |
| AFR407 | Air France | 9 | 2026-07-25 |
| AFR431 | Air France | 8 | 2026-05-25 |
| AFR579 | - | 6 | 2026-06-15 |
| AFR406 | Air France | 6 | 2026-07-24 |
| AFR578 | - | 5 | 2026-07-14 |
| AFR430 | Air France | 5 | 2026-05-13 |
| AFR258 | Air France | 5 | 2026-07-23 |
| AFR199 | Air France | 5 | 2026-07-20 |
| AFR179 | Air France | 5 | 2026-07-19 |
| AFR178 | Air France | 5 | 2026-07-18 |
| AFR935 | - | 4 | 2026-07-18 |
| AFR468 | Air France | 4 | 2026-05-21 |
| AFR416 | - | 4 | 2026-06-26 |
| AFR198 | - | 4 | 2026-07-19 |
| AFR194 | Air France | 4 | 2026-05-29 |
| AFR097 | Air France | 4 | 2026-06-13 |
| AFR096 | Air France | 4 | 2026-06-12 |
| AFR75K | Air France | 3 | 2026-07-22 |
| AFR722 | Air France | 3 | 2026-05-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | AFR934 | CDG → TNR | Jul 26, 08:55 UTC | Jul 26, 11:45 UTC | 2h 50m |
| 2026-07-25 | AFR407 | SCL → CDG | Jul 25, 14:40 UTC | Jul 26, 03:45 UTC | 13h 5m |
| 2026-07-24 | AFR406 | CDG → SCL | Jul 24, 21:55 UTC | Jul 24, 22:55 UTC | 1h 0m |
| 2026-07-23 | AFR253 | SGN → CDG | Jul 23, 20:35 UTC | Jul 24, 15:45 UTC | 19h 10m |
| 2026-07-23 | AFR253 | SGN → CDG | Jul 23, 19:10 UTC | Jul 24, 15:45 UTC | 20h 35m |
| 2026-07-23 | AFR253 | SGN → CDG | Jul 23, 16:20 UTC | Jul 24, 15:45 UTC | 23h 25m |
| 2026-07-23 | AFR253 | SGN → CDG | Jul 23, 14:20 UTC | Jul 24, 14:15 UTC | 23h 55m |
| 2026-07-23 | AFR258 | CDG → SGN | Jul 23, 12:40 UTC | Jul 24, 07:40 UTC | 19h 0m |
| 2026-07-22 | AFR75K | RDU → CDG | Jul 22, 22:35 UTC | Jul 23, 05:50 UTC | 7h 15m |
| 2026-07-22 | AFR074 | - | Jul 22, 11:55 UTC | Jul 22, 19:55 UTC | 8h 0m |
| 2026-07-21 | AFR407 | SCL → CDG | Jul 21, 16:45 UTC | Jul 22, 03:30 UTC | 10h 45m |
| 2026-07-20 | AFR407 | SCL → CDG | Jul 20, 22:20 UTC | Jul 21, 19:30 UTC | 21h 9m |
| 2026-07-20 | AFR199 | BKK → CDG | Jul 20, 05:35 UTC | Jul 20, 17:20 UTC | 11h 45m |
| 2026-07-19 | AFR198 | - | Jul 19, 15:10 UTC | Jul 19, 17:50 UTC | 2h 40m |
| 2026-07-19 | AFR179 | MEX → CDG | Jul 19, 02:05 UTC | Jul 19, 12:10 UTC | 10h 5m |
| 2026-07-18 | AFR178 | CDG → MEX | Jul 18, 12:15 UTC | Jul 18, 23:15 UTC | 11h 0m |
| 2026-07-18 | AFR935 | - | Jul 18, 05:20 UTC | Jul 18, 08:40 UTC | 3h 20m |
| 2026-07-17 | AFR935 | - | Jul 17, 12:45 UTC | Jul 18, 08:40 UTC | 19h 56m |
| 2026-07-17 | AFR935 | - | Jul 17, 10:20 UTC | Jul 18, 08:40 UTC | 22h 21m |
| 2026-07-17 | AFR935 | - | Jul 17, 09:30 UTC | Jul 18, 08:15 UTC | 22h 46m |
| 2026-07-16 | AFR75K | - | Jul 16, 22:30 UTC | Jul 17, 05:50 UTC | 7h 20m |
| 2026-07-16 | AFR074 | - | Jul 16, 11:34 UTC | Jul 16, 19:35 UTC | 8h 0m |
| 2026-07-15 | AFR375G | - | Jul 15, 21:45 UTC | Jul 16, 06:30 UTC | 8h 45m |
| 2026-07-15 | AFR374F | - | Jul 15, 10:45 UTC | Jul 15, 19:30 UTC | 8h 45m |
| 2026-07-15 | AFR374F | - | Jul 15, 10:10 UTC | Jul 15, 10:40 UTC | 30m |
| 2026-07-14 | AFR578 | - | Jul 14, 17:15 UTC | Jul 15, 07:10 UTC | 13h 54m |
| 2026-07-13 | AFR491 | - | Jul 13, 22:55 UTC | Jul 14, 13:10 UTC | 14h 15m |
| 2026-07-13 | AFR491 | - | Jul 13, 16:20 UTC | Jul 14, 13:10 UTC | 20h 50m |
| 2026-07-13 | AFR490 | - | Jul 13, 15:15 UTC | Jul 14, 13:10 UTC | 21h 55m |
| 2026-07-12 | AFR459 | - | Jul 12, 23:00 UTC | Jul 13, 09:25 UTC | 10h 25m |
| 2026-07-12 | AFR460 | - | Jul 12, 09:25 UTC | Jul 12, 20:40 UTC | 11h 15m |
| 2026-07-11 | AFR199 | - | Jul 11, 07:25 UTC | Jul 11, 17:20 UTC | 9h 55m |
| 2026-07-11 | AFR199 | - | Jul 11, 05:10 UTC | Jul 11, 05:55 UTC | 45m |
| 2026-07-10 | AFR198 | - | Jul 10, 15:15 UTC | Jul 11, 02:55 UTC | 11h 41m |
| 2026-07-10 | AFR179 | - | Jul 10, 01:45 UTC | Jul 10, 11:45 UTC | 10h 0m |
| 2026-07-09 | AFR178 | - | Jul 9, 11:50 UTC | Jul 9, 23:15 UTC | 11h 25m |
| 2026-07-08 | AFR407 | - | Jul 8, 17:30 UTC | Jul 9, 03:50 UTC | 10h 20m |
| 2026-07-08 | AFR407 | - | Jul 8, 14:40 UTC | Jul 8, 14:50 UTC | 10m |
| 2026-07-07 | AFR406 | - | Jul 7, 21:40 UTC | Jul 7, 23:05 UTC | 1h 25m |
| 2026-07-07 | AFR199 | - | Jul 7, 04:30 UTC | Jul 7, 16:20 UTC | 11h 50m |
| 2026-07-06 | AFR198 | - | Jul 6, 15:10 UTC | Jul 7, 01:40 UTC | 10h 30m |
| 2026-07-06 | AFR179 | - | Jul 6, 01:50 UTC | Jul 6, 11:50 UTC | 10h 0m |
| 2026-07-05 | AFR178 | - | Jul 5, 11:55 UTC | Jul 5, 23:00 UTC | 11h 5m |
| 2026-07-04 | AFR75K | - | Jul 4, 22:15 UTC | Jul 5, 05:20 UTC | 7h 5m |
| 2026-07-04 | AFR074 | - | Jul 4, 11:35 UTC | Jul 4, 19:45 UTC | 8h 10m |
| 2026-07-01 | AFR832 | - | Jul 1, 12:10 UTC | Jul 2, 05:35 UTC | 17h 25m |
| 2026-06-30 | AFR357E | - | Jun 30, 22:30 UTC | Jul 1, 05:10 UTC | 6h 40m |
| 2026-06-30 | AFR356G | - | Jun 30, 12:15 UTC | Jun 30, 19:45 UTC | 7h 30m |
| 2026-06-29 | AFR465 | - | Jun 29, 10:20 UTC | Jun 30, 06:00 UTC | 19h 41m |
| 2026-06-29 | AFR465 | - | Jun 29, 09:05 UTC | Jun 30, 06:00 UTC | 20h 56m |
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-HTYJ page for operator, model, and routing details .