sensors Mode-S transponder
394A12
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-GSQS · BOEING 777-300ER
- Hex
- 394A12
- Octal
- 16245022
- Decimal
- 3,754,514
- Country
- FR
- Tail
- F-GSQS
- Type
- B77W
- Flights observed
- 126
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 394A12 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 |
|---|---|---|---|
| AFR809 | - | 8 | 2026-07-04 |
| AFR673 | - | 8 | 2026-06-13 |
| AFR473 | - | 8 | 2026-07-10 |
| AFR816 | - | 7 | 2026-07-04 |
| AFR672 | Air France | 6 | 2026-06-11 |
| AFR504 | - | 6 | 2026-07-08 |
| AFR647 | - | 5 | 2026-06-27 |
| AFR501 | Air France | 5 | 2026-06-03 |
| AFR500 | Air France | 5 | 2026-06-02 |
| AFR841 | - | 4 | 2026-07-13 |
| AFR763 | - | 4 | 2026-06-16 |
| AFR705 | Air France | 4 | 2026-04-16 |
| AFR651 | - | 4 | 2026-06-19 |
| AFR643 | - | 4 | 2026-07-08 |
| AFR828 | - | 3 | 2026-06-15 |
| AFR706 | Air France | 3 | 2026-06-13 |
| AFR654 | - | 3 | 2026-07-14 |
| AFR505 | - | 3 | 2026-07-08 |
| AFR470 | - | 3 | 2026-07-09 |
| AFR836 | Air France | 2 | 2026-05-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | AFR654 | - | Jul 14, 07:10 UTC | Jul 14, 09:55 UTC | 2h 45m |
| 2026-07-13 | AFR841 | - | Jul 13, 08:35 UTC | Jul 14, 03:30 UTC | 18h 55m |
| 2026-07-13 | AFR841 | - | Jul 13, 08:15 UTC | Jul 14, 03:30 UTC | 19h 15m |
| 2026-07-12 | AFR841 | - | Jul 12, 08:35 UTC | Jul 13, 03:30 UTC | 18h 55m |
| 2026-07-11 | AFR841 | - | Jul 11, 08:35 UTC | Jul 12, 03:30 UTC | 18h 55m |
| 2026-07-10 | AFR473 | - | Jul 10, 14:10 UTC | Jul 10, 17:50 UTC | 3h 40m |
| 2026-07-09 | AFR473 | - | Jul 9, 20:35 UTC | Jul 10, 17:50 UTC | 21h 15m |
| 2026-07-09 | AFR473 | - | Jul 9, 18:35 UTC | Jul 10, 17:50 UTC | 23h 15m |
| 2026-07-09 | AFR470 | - | Jul 9, 17:20 UTC | Jul 10, 16:30 UTC | 23h 10m |
| 2026-07-08 | AFR505 | - | Jul 8, 21:15 UTC | Jul 9, 14:00 UTC | 16h 45m |
| 2026-07-08 | AFR504 | - | Jul 8, 12:35 UTC | Jul 9, 12:30 UTC | 23h 55m |
| 2026-07-08 | AFR504 | - | Jul 8, 11:20 UTC | Jul 9, 03:45 UTC | 16h 25m |
| 2026-07-08 | AFR643 | - | Jul 8, 04:35 UTC | Jul 8, 07:45 UTC | 3h 10m |
| 2026-07-07 | AFR643 | - | Jul 7, 08:35 UTC | Jul 8, 07:45 UTC | 23h 10m |
| 2026-07-07 | AFR654 | - | Jul 7, 07:40 UTC | Jul 8, 06:30 UTC | 22h 50m |
| 2026-07-06 | AFR771 | - | Jul 6, 09:50 UTC | Jul 7, 04:10 UTC | 18h 20m |
| 2026-07-05 | AFR345M | YUL → CDG | Jul 5, 23:55 UTC | Jul 6, 05:55 UTC | 6h 0m |
| 2026-07-05 | AFR344 | - | Jul 5, 12:15 UTC | Jul 5, 19:25 UTC | 7h 10m |
| 2026-07-04 | AFR809 | - | Jul 4, 14:35 UTC | Jul 5, 08:40 UTC | 18h 5m |
| 2026-07-04 | AFR816 | - | Jul 4, 13:25 UTC | Jul 5, 08:40 UTC | 19h 15m |
| 2026-07-04 | AFR809 | - | Jul 4, 07:30 UTC | Jul 4, 08:50 UTC | 1h 20m |
| 2026-07-03 | AFR816 | - | Jul 3, 13:50 UTC | Jul 3, 15:20 UTC | 1h 30m |
| 2026-07-01 | AFR473 | - | Jul 1, 13:35 UTC | Jul 1, 17:40 UTC | 4h 5m |
| 2026-06-30 | AFR473 | - | Jun 30, 20:35 UTC | Jul 1, 17:40 UTC | 21h 5m |
| 2026-06-30 | AFR473 | - | Jun 30, 18:35 UTC | Jul 1, 17:40 UTC | 23h 5m |
| 2026-06-30 | AFR470 | - | Jun 30, 17:35 UTC | Jul 1, 16:30 UTC | 22h 55m |
| 2026-06-29 | AFR505 | - | Jun 29, 21:19 UTC | Jun 30, 13:25 UTC | 16h 6m |
| 2026-06-29 | AFR504 | - | Jun 29, 12:34 UTC | Jun 30, 12:30 UTC | 23h 56m |
| 2026-06-29 | AFR504 | - | Jun 29, 11:10 UTC | Jun 30, 03:15 UTC | 16h 5m |
| 2026-06-29 | AFR643 | - | Jun 29, 04:34 UTC | Jun 29, 07:34 UTC | 3h 0m |
| 2026-06-28 | AFR643 | - | Jun 28, 08:34 UTC | Jun 29, 07:34 UTC | 23h 0m |
| 2026-06-28 | AFR654 | - | Jun 28, 07:44 UTC | Jun 29, 06:29 UTC | 22h 45m |
| 2026-06-27 | AFR647 | - | Jun 27, 15:00 UTC | Jun 27, 19:00 UTC | 4h 0m |
| 2026-06-26 | AFR647 | - | Jun 26, 18:34 UTC | Jun 27, 18:29 UTC | 23h 55m |
| 2026-06-26 | AFR652 | - | Jun 26, 16:44 UTC | Jun 27, 16:30 UTC | 23h 45m |
| 2026-06-26 | AFR359P | - | Jun 26, 05:05 UTC | Jun 26, 11:45 UTC | 6h 40m |
| 2026-06-25 | AFR358P | - | Jun 25, 17:25 UTC | Jun 26, 00:55 UTC | 7h 30m |
| 2026-06-24 | AFR505 | - | Jun 24, 19:55 UTC | Jun 25, 13:40 UTC | 17h 45m |
| 2026-06-24 | AFR504 | - | Jun 24, 12:34 UTC | Jun 25, 12:30 UTC | 23h 55m |
| 2026-06-24 | AFR504 | - | Jun 24, 11:39 UTC | Jun 25, 03:54 UTC | 16h 15m |
| 2026-06-24 | AFR347F | YUL → CDG | Jun 24, 02:05 UTC | Jun 24, 08:04 UTC | 6h 0m |
| 2026-06-23 | AFR346 | - | Jun 23, 15:15 UTC | Jun 23, 22:19 UTC | 7h 5m |
| 2026-06-23 | AFR353 | - | Jun 23, 05:09 UTC | Jun 23, 10:59 UTC | 5h 50m |
| 2026-06-22 | AFR352 | - | Jun 22, 19:49 UTC | Jun 23, 02:29 UTC | 6h 40m |
| 2026-06-19 | AFR651 | - | Jun 19, 21:54 UTC | Jun 20, 10:59 UTC | 13h 5m |
| 2026-06-19 | AFR651 | - | Jun 19, 14:34 UTC | Jun 20, 10:59 UTC | 20h 25m |
| 2026-06-19 | AFR651 | - | Jun 19, 13:39 UTC | Jun 20, 10:59 UTC | 21h 20m |
| 2026-06-18 | AFR758 | - | Jun 18, 14:40 UTC | Jun 19, 08:50 UTC | 18h 9m |
| 2026-06-17 | AFR809 | - | Jun 17, 14:35 UTC | Jun 18, 08:35 UTC | 18h 0m |
| 2026-06-17 | AFR816 | - | Jun 17, 13:35 UTC | Jun 18, 08:35 UTC | 19h 0m |
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-GSQS page for operator, model, and routing details .