sensors Mode-S transponder
39CF12
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-HTYS · AIRBUS A-350-900
- Hex
- 39CF12
- Octal
- 16347422
- Decimal
- 3,788,562
- Country
- FR
- Tail
- F-HTYS
- Type
- A359
- Flights observed
- 177
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- Jul 26, 22:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 39CF12 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 |
|---|---|---|---|
| AFR468 | Air France | 8 | 2026-05-08 |
| AFR435 | - | 8 | 2026-07-17 |
| AFR407 | - | 8 | 2026-07-11 |
| AFR375G | - | 8 | 2026-07-07 |
| AFR754 | Air France | 7 | 2026-04-23 |
| AFR477 | Air France | 7 | 2026-05-09 |
| AFR374F | - | 7 | 2026-07-07 |
| AFR436 | - | 6 | 2026-07-16 |
| AFR491 | - | 5 | 2026-07-15 |
| AFR406 | - | 5 | 2026-07-10 |
| AFR253 | - | 5 | 2026-07-10 |
| AFR194 | Air France | 5 | 2026-05-28 |
| AFR338 | Air France | 4 | 2026-07-25 |
| AFR337P | - | 4 | 2026-07-25 |
| AFR191 | Air France | 4 | 2026-05-28 |
| AFR75K | Air France | 3 | 2026-07-26 |
| AFR490 | - | 3 | 2026-06-28 |
| AFR431 | Air France | 3 | 2026-05-11 |
| AFR332 | - | 3 | 2026-04-13 |
| AFR258 | - | 3 | 2026-07-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | AFR75K | RDU → CDG | Jul 26, 22:20 UTC | Jul 26, 22:30 UTC | 10m |
| 2026-07-26 | AFR074 | CDG → RDU | Jul 26, 11:45 UTC | Jul 26, 19:50 UTC | 8h 5m |
| 2026-07-25 | AFR337P | SEA → CDG | Jul 25, 20:45 UTC | Jul 26, 05:35 UTC | 8h 50m |
| 2026-07-25 | AFR338 | CDG → SEA | Jul 25, 08:50 UTC | Jul 25, 18:20 UTC | 9h 30m |
| 2026-07-19 | AFR75K | RDU → CDG | Jul 19, 22:45 UTC | Jul 20, 06:05 UTC | 7h 20m |
| 2026-07-19 | AFR074 | - | Jul 19, 11:55 UTC | Jul 19, 20:05 UTC | 8h 10m |
| 2026-07-19 | AFR33J | ATL → CDG | Jul 19, 00:20 UTC | Jul 19, 08:25 UTC | 8h 5m |
| 2026-07-18 | AFR32J | - | Jul 18, 13:35 UTC | Jul 18, 22:00 UTC | 8h 25m |
| 2026-07-17 | AFR578 | CDG → CKY | Jul 17, 16:24 UTC | Jul 18, 06:00 UTC | 13h 36m |
| 2026-07-17 | AFR435 | - | Jul 17, 03:59 UTC | Jul 17, 12:55 UTC | 8h 55m |
| 2026-07-16 | AFR436 | - | Jul 16, 23:49 UTC | Jul 17, 00:14 UTC | 25m |
| 2026-07-16 | AFR436 | - | Jul 16, 14:05 UTC | Jul 16, 22:59 UTC | 8h 55m |
| 2026-07-16 | AFR349 | - | Jul 16, 07:15 UTC | Jul 16, 09:00 UTC | 1h 45m |
| 2026-07-16 | AFR349 | - | Jul 16, 02:45 UTC | Jul 16, 03:50 UTC | 1h 5m |
| 2026-07-15 | AFR348F | - | Jul 15, 16:50 UTC | Jul 15, 23:35 UTC | 6h 45m |
| 2026-07-15 | AFR491 | - | Jul 15, 11:25 UTC | Jul 15, 12:55 UTC | 1h 30m |
| 2026-07-14 | AFR491 | - | Jul 14, 15:00 UTC | Jul 15, 12:55 UTC | 21h 54m |
| 2026-07-14 | AFR179 | - | Jul 14, 01:35 UTC | Jul 14, 11:50 UTC | 10h 15m |
| 2026-07-13 | AFR178 | - | Jul 13, 11:55 UTC | Jul 13, 23:00 UTC | 11h 5m |
| 2026-07-11 | AFR407 | - | Jul 11, 22:01 UTC | Jul 12, 08:20 UTC | 10h 20m |
| 2026-07-11 | AFR407 | - | Jul 11, 19:15 UTC | Jul 11, 19:25 UTC | 10m |
| 2026-07-10 | AFR406 | - | Jul 10, 21:35 UTC | Jul 11, 08:15 UTC | 10h 40m |
| 2026-07-10 | AFR253 | - | Jul 10, 07:05 UTC | Jul 10, 17:00 UTC | 9h 55m |
| 2026-07-09 | AFR253 | - | Jul 9, 20:35 UTC | Jul 10, 17:00 UTC | 20h 25m |
| 2026-07-09 | AFR253 | - | Jul 9, 19:55 UTC | Jul 10, 17:00 UTC | 21h 5m |
| 2026-07-09 | AFR253 | - | Jul 9, 16:45 UTC | Jul 10, 16:30 UTC | 23h 45m |
| 2026-07-09 | AFR258 | - | Jul 9, 14:35 UTC | Jul 10, 13:20 UTC | 22h 45m |
| 2026-07-09 | AFR258 | - | Jul 9, 13:30 UTC | Jul 10, 12:30 UTC | 23h 0m |
| 2026-07-08 | AFR465 | - | Jul 8, 10:35 UTC | Jul 9, 05:55 UTC | 19h 20m |
| 2026-07-08 | AFR476 | - | Jul 8, 08:35 UTC | Jul 9, 05:55 UTC | 21h 20m |
| 2026-07-07 | AFR375G | - | Jul 7, 20:50 UTC | Jul 8, 05:35 UTC | 8h 45m |
| 2026-07-07 | AFR374F | - | Jul 7, 08:45 UTC | Jul 7, 18:20 UTC | 9h 35m |
| 2026-07-06 | AFR375G | - | Jul 6, 20:55 UTC | Jul 7, 05:55 UTC | 9h 0m |
| 2026-07-06 | AFR374F | - | Jul 6, 09:05 UTC | Jul 6, 18:25 UTC | 9h 20m |
| 2026-07-05 | AFR333F | - | Jul 5, 23:45 UTC | Jul 6, 05:40 UTC | 5h 55m |
| 2026-07-04 | AFR52X | - | Jul 4, 16:20 UTC | Jul 5, 00:10 UTC | 7h 50m |
| 2026-07-04 | AFR179 | - | Jul 4, 02:55 UTC | Jul 4, 12:55 UTC | 10h 0m |
| 2026-07-03 | AFR178 | - | Jul 3, 11:50 UTC | Jul 3, 22:50 UTC | 11h 0m |
| 2026-07-02 | AFR75K | - | Jul 2, 22:50 UTC | Jul 3, 06:05 UTC | 7h 15m |
| 2026-07-02 | AFR074 | - | Jul 2, 11:35 UTC | Jul 2, 19:40 UTC | 8h 5m |
| 2026-07-01 | AFR097 | - | Jul 1, 03:15 UTC | Jul 1, 11:30 UTC | 8h 15m |
| 2026-06-30 | AFR096 | - | Jun 30, 15:05 UTC | Jul 1, 00:10 UTC | 9h 5m |
| 2026-06-30 | AFR097 | - | Jun 30, 04:15 UTC | Jun 30, 12:00 UTC | 7h 45m |
| 2026-06-29 | AFR096 | - | Jun 29, 16:35 UTC | Jun 30, 01:55 UTC | 9h 21m |
| 2026-06-28 | AFR491 | - | Jun 28, 22:29 UTC | Jun 29, 13:00 UTC | 14h 30m |
| 2026-06-28 | AFR491 | - | Jun 28, 14:34 UTC | Jun 29, 13:00 UTC | 22h 25m |
| 2026-06-28 | AFR490 | - | Jun 28, 14:04 UTC | Jun 29, 12:29 UTC | 22h 25m |
| 2026-06-27 | AFR511 | - | Jun 27, 22:20 UTC | Jun 28, 08:39 UTC | 10h 20m |
| 2026-06-27 | AFR512 | - | Jun 27, 09:15 UTC | Jun 27, 19:49 UTC | 10h 35m |
| 2026-06-19 | AFR579 | - | Jun 19, 07:29 UTC | Jun 19, 09:44 UTC | 2h 15m |
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-HTYS page for operator, model, and routing details .