sensors Mode-S transponder
39CF13
ICAO 24-bit transponder address · allocated to France
- Hex
- 39CF13
- Octal
- 16347423
- Decimal
- 3,788,563
- Country
- FR
- Flights observed
- 0
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 39CF13 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 |
|---|---|---|---|
| AFR435 | - | 12 | 2026-07-08 |
| AFR174 | - | 9 | 2026-06-30 |
| AFR173 | - | 8 | 2026-07-01 |
| AFR722 | Air France | 6 | 2026-05-31 |
| AFR551 | Air France | 6 | 2026-05-27 |
| AFR407 | - | 6 | 2026-07-02 |
| AFR570 | Air France | 5 | 2026-05-26 |
| AFR465 | - | 5 | 2026-07-04 |
| AFR436 | Air France | 5 | 2026-05-24 |
| AFR194 | - | 5 | 2026-06-18 |
| AFR406 | - | 4 | 2026-07-01 |
| AFR375G | - | 4 | 2026-07-12 |
| AFR374F | - | 4 | 2026-07-12 |
| AFR264 | - | 4 | 2026-06-12 |
| AFR198 | - | 4 | 2026-07-10 |
| AFR191 | - | 4 | 2026-06-18 |
| AFR579 | Air France | 3 | 2026-05-06 |
| AFR578 | Air France | 3 | 2026-05-05 |
| AFR491 | - | 3 | 2026-07-05 |
| AFR490 | - | 3 | 2026-07-05 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | AFR074 | - | Jul 14, 12:35 UTC | Jul 14, 20:25 UTC | 7h 50m |
| 2026-07-14 | AFR935 | - | Jul 14, 07:10 UTC | Jul 14, 09:05 UTC | 1h 55m |
| 2026-07-13 | AFR935 | - | Jul 13, 10:50 UTC | Jul 14, 09:05 UTC | 22h 15m |
| 2026-07-13 | AFR934 | - | Jul 13, 09:05 UTC | Jul 14, 08:45 UTC | 23h 40m |
| 2026-07-12 | AFR375G | - | Jul 12, 21:20 UTC | Jul 13, 06:05 UTC | 8h 45m |
| 2026-07-12 | AFR374F | CDG → YVR | Jul 12, 09:00 UTC | Jul 12, 18:25 UTC | 9h 25m |
| 2026-07-10 | AFR199 | - | Jul 10, 07:40 UTC | Jul 10, 20:20 UTC | 12h 40m |
| 2026-07-10 | AFR198 | - | Jul 10, 04:35 UTC | Jul 10, 05:20 UTC | 45m |
| 2026-07-09 | AFR198 | - | Jul 9, 17:45 UTC | Jul 10, 02:35 UTC | 8h 50m |
| 2026-07-08 | AFR435 | - | Jul 8, 19:15 UTC | Jul 9, 14:45 UTC | 19h 30m |
| 2026-07-08 | AFR435 | - | Jul 8, 16:50 UTC | Jul 9, 14:45 UTC | 21h 55m |
| 2026-07-08 | AFR435 | - | Jul 8, 16:15 UTC | Jul 9, 14:45 UTC | 22h 30m |
| 2026-07-07 | AFR75K | RDU → CDG | Jul 7, 22:25 UTC | Jul 8, 05:40 UTC | 7h 15m |
| 2026-07-07 | AFR074 | - | Jul 7, 11:55 UTC | Jul 7, 19:45 UTC | 7h 50m |
| 2026-07-07 | AFR349 | YUL → CDG | Jul 7, 02:45 UTC | Jul 7, 08:55 UTC | 6h 10m |
| 2026-07-06 | AFR348F | - | Jul 6, 17:20 UTC | Jul 7, 00:10 UTC | 6h 50m |
| 2026-07-05 | AFR491 | - | Jul 5, 21:25 UTC | Jul 6, 13:00 UTC | 15h 35m |
| 2026-07-05 | AFR491 | - | Jul 5, 14:50 UTC | Jul 6, 13:00 UTC | 22h 10m |
| 2026-07-05 | AFR490 | - | Jul 5, 14:05 UTC | Jul 6, 12:45 UTC | 22h 40m |
| 2026-07-04 | AFR465 | - | Jul 4, 10:50 UTC | Jul 5, 06:15 UTC | 19h 25m |
| 2026-07-04 | AFR465 | - | Jul 4, 09:25 UTC | Jul 5, 06:15 UTC | 20h 50m |
| 2026-07-03 | AFR337P | SEA → CDG | Jul 3, 20:45 UTC | Jul 4, 05:45 UTC | 9h 0m |
| 2026-07-03 | AFR338 | - | Jul 3, 08:55 UTC | Jul 3, 18:25 UTC | 9h 30m |
| 2026-07-02 | AFR407 | - | Jul 2, 17:45 UTC | Jul 3, 04:05 UTC | 10h 20m |
| 2026-07-01 | AFR406 | - | Jul 1, 21:35 UTC | Jul 1, 23:00 UTC | 1h 25m |
| 2026-07-01 | AFR173 | - | Jul 1, 04:25 UTC | Jul 1, 14:40 UTC | 10h 15m |
| 2026-06-30 | AFR174 | - | Jun 30, 14:35 UTC | Jul 1, 01:30 UTC | 10h 55m |
| 2026-06-30 | AFR57J | LAS → CDG | Jun 30, 01:00 UTC | Jun 30, 10:20 UTC | 9h 21m |
| 2026-06-29 | AFR56T | - | Jun 29, 12:20 UTC | Jun 29, 22:35 UTC | 10h 15m |
| 2026-06-28 | AFR099 | - | Jun 28, 22:24 UTC | Jun 29, 07:05 UTC | 8h 40m |
| 2026-06-28 | AFR98G | - | Jun 28, 10:10 UTC | Jun 28, 19:29 UTC | 9h 20m |
| 2026-06-27 | AFR465 | - | Jun 27, 16:49 UTC | Jun 28, 06:20 UTC | 13h 30m |
| 2026-06-27 | AFR465 | - | Jun 27, 09:04 UTC | Jun 28, 06:20 UTC | 21h 15m |
| 2026-06-26 | AFR407 | - | Jun 26, 17:15 UTC | Jun 27, 03:49 UTC | 10h 35m |
| 2026-06-25 | AFR406 | - | Jun 25, 21:55 UTC | Jun 26, 00:55 UTC | 3h 0m |
| 2026-06-25 | AFR199 | - | Jun 25, 04:45 UTC | Jun 25, 16:35 UTC | 11h 50m |
| 2026-06-24 | AFR198 | - | Jun 24, 15:24 UTC | Jun 25, 02:05 UTC | 10h 40m |
| 2026-06-24 | AFR097 | - | Jun 24, 03:29 UTC | Jun 24, 11:34 UTC | 8h 5m |
| 2026-06-23 | AFR096 | - | Jun 23, 16:14 UTC | Jun 24, 01:09 UTC | 8h 55m |
| 2026-06-22 | AFR75K | - | Jun 22, 22:24 UTC | Jun 23, 05:34 UTC | 7h 10m |
| 2026-06-22 | AFR074 | - | Jun 22, 11:39 UTC | Jun 22, 19:49 UTC | 8h 10m |
| 2026-06-21 | AFR069 | - | Jun 21, 23:00 UTC | Jun 22, 08:40 UTC | 9h 40m |
| 2026-06-21 | AFR068 | - | Jun 21, 09:44 UTC | Jun 21, 20:09 UTC | 10h 25m |
| 2026-06-20 | AFR465 | SSA → CDG | Jun 20, 10:49 UTC | Jun 21, 06:24 UTC | 19h 35m |
| 2026-06-20 | AFR476 | CDG → HAV | Jun 20, 08:55 UTC | Jun 21, 06:24 UTC | 21h 30m |
| 2026-06-19 | AFR375G | - | Jun 19, 20:34 UTC | Jun 20, 04:44 UTC | 8h 10m |
| 2026-06-19 | AFR374F | - | Jun 19, 08:54 UTC | Jun 19, 17:49 UTC | 8h 55m |
| 2026-06-18 | AFR191 | - | Jun 18, 20:10 UTC | Jun 19, 05:49 UTC | 9h 39m |
| 2026-06-18 | AFR194 | - | Jun 18, 17:35 UTC | Jun 18, 17:55 UTC | 20m |
| 2026-06-18 | AFR194 | - | Jun 18, 08:50 UTC | Jun 18, 16:15 UTC | 7h 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.