sensors Mode-S transponder
39CF0A
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-HTYK · AIRBUS A-350-900
- Hex
- 39CF0A
- Octal
- 16347412
- Decimal
- 3,788,554
- Country
- FR
- Tail
- F-HTYK
- Type
- A359
- Flights observed
- 212
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- Jul 26, 15:35 UTC
Last known position
Country allocation
The ICAO 24-bit address 39CF0A 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 | 11 | 2026-07-22 |
| AFR174 | Air France | 11 | 2026-05-25 |
| AFR436 | Air France | 10 | 2026-07-26 |
| AFR173 | Air France | 10 | 2026-05-26 |
| AFR375G | Air France | 9 | 2026-07-23 |
| AFR374F | Air France | 9 | 2026-07-23 |
| AFR491 | Air France | 8 | 2026-07-24 |
| AFR435 | - | 8 | 2026-07-01 |
| AFR097 | - | 7 | 2026-07-20 |
| AFR096 | - | 7 | 2026-07-19 |
| AFR722 | Air France | 6 | 2026-05-15 |
| AFR199 | Air France | 6 | 2026-07-21 |
| AFR995 | Air France | 5 | 2026-04-28 |
| AFR406 | Air France | 5 | 2026-07-21 |
| AFR349 | Air France | 5 | 2026-07-26 |
| AFR348F | Air France | 5 | 2026-07-25 |
| AFR198 | - | 5 | 2026-07-20 |
| AFR990 | Air France | 4 | 2026-04-27 |
| AFR935 | - | 4 | 2026-07-10 |
| AFR579 | Air France | 4 | 2026-06-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | AFR436 | CDG → BOG | Jul 26, 14:15 UTC | Jul 26, 15:35 UTC | 1h 20m |
| 2026-07-26 | AFR349 | YUL → CDG | Jul 26, 02:35 UTC | Jul 26, 08:50 UTC | 6h 16m |
| 2026-07-25 | AFR348F | CDG → YUL | Jul 25, 16:40 UTC | Jul 25, 23:25 UTC | 6h 45m |
| 2026-07-24 | AFR491 | CDG → PUJ | Jul 24, 21:30 UTC | Jul 25, 13:15 UTC | 15h 45m |
| 2026-07-24 | AFR490 | CDG → PTY | Jul 24, 14:35 UTC | Jul 25, 13:15 UTC | 22h 40m |
| 2026-07-24 | AFR490 | CDG → PTY | Jul 24, 14:20 UTC | Jul 25, 12:30 UTC | 22h 10m |
| 2026-07-23 | AFR375G | YVR → CDG | Jul 23, 21:00 UTC | Jul 24, 05:30 UTC | 8h 30m |
| 2026-07-23 | AFR374F | CDG → YVR | Jul 23, 09:00 UTC | Jul 23, 18:15 UTC | 9h 15m |
| 2026-07-22 | AFR407 | SCL → CDG | Jul 22, 17:20 UTC | Jul 23, 03:20 UTC | 10h 0m |
| 2026-07-22 | AFR407 | SCL → CDG | Jul 22, 14:35 UTC | Jul 22, 14:45 UTC | 10m |
| 2026-07-21 | AFR406 | CDG → SCL | Jul 21, 21:55 UTC | Jul 21, 22:55 UTC | 1h 0m |
| 2026-07-21 | AFR199 | BKK → CDG | Jul 21, 04:55 UTC | Jul 21, 17:40 UTC | 12h 45m |
| 2026-07-20 | AFR198 | - | Jul 20, 15:00 UTC | Jul 21, 02:30 UTC | 11h 29m |
| 2026-07-20 | AFR097 | - | Jul 20, 03:05 UTC | Jul 20, 12:05 UTC | 9h 0m |
| 2026-07-19 | AFR096 | - | Jul 19, 15:10 UTC | Jul 19, 23:45 UTC | 8h 35m |
| 2026-07-19 | AFR097 | MCO → CDG | Jul 19, 03:00 UTC | Jul 19, 11:20 UTC | 8h 20m |
| 2026-07-18 | AFR096 | - | Jul 18, 15:20 UTC | Jul 18, 23:55 UTC | 8h 35m |
| 2026-07-18 | AFR179 | MEX → CDG | Jul 18, 01:54 UTC | Jul 18, 12:10 UTC | 10h 16m |
| 2026-07-17 | AFR178 | - | Jul 17, 11:50 UTC | Jul 17, 22:29 UTC | 10h 40m |
| 2026-07-16 | AFR375G | - | Jul 16, 20:39 UTC | Jul 17, 05:35 UTC | 8h 55m |
| 2026-07-16 | AFR374F | - | Jul 16, 09:05 UTC | Jul 16, 18:34 UTC | 9h 30m |
| 2026-07-15 | AFR832 | - | Jul 15, 12:00 UTC | Jul 16, 04:50 UTC | 16h 50m |
| 2026-07-15 | AFR33J | ATL → CDG | Jul 15, 00:20 UTC | Jul 15, 08:20 UTC | 8h 0m |
| 2026-07-14 | AFR32J | - | Jul 14, 12:40 UTC | Jul 14, 21:20 UTC | 8h 40m |
| 2026-07-13 | AFR511 | - | Jul 13, 22:50 UTC | Jul 14, 09:05 UTC | 10h 15m |
| 2026-07-13 | AFR512 | - | Jul 13, 19:20 UTC | Jul 13, 19:40 UTC | 20m |
| 2026-07-13 | AFR512 | - | Jul 13, 08:45 UTC | Jul 13, 18:40 UTC | 9h 55m |
| 2026-07-12 | AFR199 | - | Jul 12, 07:35 UTC | Jul 12, 17:30 UTC | 9h 55m |
| 2026-07-12 | AFR199 | - | Jul 12, 05:05 UTC | Jul 12, 06:01 UTC | 55m |
| 2026-07-11 | AFR198 | - | Jul 11, 14:55 UTC | Jul 12, 02:35 UTC | 11h 40m |
| 2026-07-11 | AFR097 | MCO → CDG | Jul 11, 03:10 UTC | Jul 11, 11:10 UTC | 8h 0m |
| 2026-07-10 | AFR096 | - | Jul 10, 15:10 UTC | Jul 11, 00:20 UTC | 9h 10m |
| 2026-07-10 | AFR935 | - | Jul 10, 05:20 UTC | Jul 10, 08:45 UTC | 3h 25m |
| 2026-07-09 | AFR935 | - | Jul 9, 12:45 UTC | Jul 10, 08:45 UTC | 20h 0m |
| 2026-07-09 | AFR935 | - | Jul 9, 10:35 UTC | Jul 10, 08:45 UTC | 22h 10m |
| 2026-07-09 | AFR935 | - | Jul 9, 09:25 UTC | Jul 10, 08:30 UTC | 23h 5m |
| 2026-07-08 | AFR832 | - | Jul 8, 12:30 UTC | Jul 9, 05:25 UTC | 16h 55m |
| 2026-07-07 | AFR337P | SEA → CDG | Jul 7, 20:55 UTC | Jul 8, 06:00 UTC | 9h 5m |
| 2026-07-07 | AFR338 | - | Jul 7, 08:45 UTC | Jul 7, 18:30 UTC | 9h 45m |
| 2026-07-07 | AFR407 | - | Jul 7, 01:25 UTC | Jul 7, 03:45 UTC | 2h 20m |
| 2026-07-06 | AFR407 | - | Jul 6, 15:15 UTC | Jul 7, 01:20 UTC | 10h 5m |
| 2026-07-06 | AFR407 | - | Jul 6, 14:35 UTC | Jul 6, 14:45 UTC | 10m |
| 2026-07-05 | AFR406 | - | Jul 5, 21:35 UTC | Jul 5, 22:55 UTC | 1h 20m |
| 2026-07-05 | AFR199 | - | Jul 5, 05:25 UTC | Jul 5, 18:05 UTC | 12h 40m |
| 2026-07-04 | AFR198 | - | Jul 4, 15:00 UTC | Jul 5, 03:00 UTC | 12h 0m |
| 2026-07-04 | AFR097 | MCO → CDG | Jul 4, 03:00 UTC | Jul 4, 11:00 UTC | 8h 0m |
| 2026-07-03 | AFR096 | CDG → MCO | Jul 3, 15:10 UTC | Jul 3, 23:55 UTC | 8h 45m |
| 2026-07-03 | AFR097 | - | Jul 3, 03:05 UTC | Jul 3, 11:05 UTC | 8h 0m |
| 2026-07-02 | AFR096 | - | Jul 2, 15:05 UTC | Jul 2, 23:55 UTC | 8h 50m |
| 2026-07-02 | AFR11E | JFK → CDG | Jul 2, 05:30 UTC | Jul 2, 11:55 UTC | 6h 25m |
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-HTYK page for operator, model, and routing details .