sensors Mode-S transponder
3949F7
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-GSPX · BOEING 777-200
- Hex
- 3949F7
- Octal
- 16244767
- Decimal
- 3,754,487
- Country
- FR
- Tail
- F-GSPX
- Type
- B772
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 21m ago
Current position
Country allocation
The ICAO 24-bit address 3949F7 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 |
|---|---|---|---|
| AFR935 | Air France | 12 | 2026-05-18 |
| AFR217 | Air France | 9 | 2026-05-06 |
| AFR111 | Air France | 6 | 2026-05-29 |
| AFR706 | Air France | 5 | 2026-05-10 |
| AFR501 | Air France | 5 | 2026-04-16 |
| AFR218 | Air France | 5 | 2026-04-25 |
| AFR116 | Air France | 4 | 2026-05-28 |
| AFR940 | Air France | 3 | 2026-05-16 |
| AFR828 | Air France | 3 | 2026-05-20 |
| AFR805 | Air France | 3 | 2026-04-17 |
| AFR804 | - | 3 | 2026-04-16 |
| AFR378E | Air France | 3 | 2026-05-09 |
| AFR377 | Air France | 3 | 2026-05-10 |
| AFR327 | Air France | 3 | 2026-05-21 |
| AFR149 | Air France | 3 | 2026-05-14 |
| AFR934 | Air France | 2 | 2026-05-17 |
| AFR837 | Air France | 2 | 2026-04-13 |
| AFR82M | Air France | 2 | 2026-04-20 |
| AFR829 | Air France | 2 | 2026-05-21 |
| AFR705 | Air France | 2 | 2026-04-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | AFR111 | PVG → CDG | May 29, 07:30 UTC | May 30, 01:45 UTC | 18h 15m |
| 2026-05-28 | AFR111 | PVG → CDG | May 28, 23:50 UTC | May 29, 23:45 UTC | 23h 55m |
| 2026-05-28 | AFR116 | CDG → PVG | May 28, 21:45 UTC | May 29, 15:25 UTC | 17h 40m |
| 2026-05-28 | AFR187 | CDG → LAS | May 28, 00:10 UTC | May 28, 14:05 UTC | 13h 55m |
| 2026-05-27 | AFR186 | LAS → CDG | May 27, 09:15 UTC | May 27, 21:50 UTC | 12h 35m |
| 2026-05-26 | AFR287 | HND → CDG | May 26, 02:49 UTC | May 26, 17:09 UTC | 14h 20m |
| 2026-05-24 | AFR286 | CDG → HND | May 24, 10:50 UTC | May 24, 23:46 UTC | 12h 56m |
| 2026-05-23 | AFR181 | SIN → CDG | May 23, 03:20 UTC | May 23, 16:40 UTC | 13h 20m |
| 2026-05-22 | AFR182 | CDG → SIN | May 22, 11:50 UTC | May 23, 00:20 UTC | 12h 30m |
| 2026-05-21 | AFR327 | YOW → CDG | May 21, 21:20 UTC | May 22, 03:20 UTC | 6h 0m |
| 2026-05-21 | AFR328K | CDG → YOW | May 21, 11:45 UTC | May 21, 19:05 UTC | 7h 20m |
| 2026-05-21 | AFR829 | COF → COF | May 21, 01:45 UTC | May 21, 05:00 UTC | 3h 15m |
| 2026-05-20 | AFR828 | CDG → NBO | May 20, 17:00 UTC | May 20, 17:15 UTC | 15m |
| 2026-05-20 | AFR828 | CDG → NBO | May 20, 09:25 UTC | May 20, 12:10 UTC | 2h 45m |
| 2026-05-19 | AFR933 | LAD → CDG | May 19, 21:45 UTC | May 20, 06:30 UTC | 8h 46m |
| 2026-05-18 | AFR930 | CDG → LAD | May 18, 21:30 UTC | May 19, 04:55 UTC | 7h 25m |
| 2026-05-18 | AFR935 | TNR → CDG | May 18, 05:30 UTC | May 18, 08:45 UTC | 3h 15m |
| 2026-05-17 | AFR935 | TNR → CDG | May 17, 11:50 UTC | May 18, 08:45 UTC | 20h 55m |
| 2026-05-17 | AFR935 | TNR → CDG | May 17, 09:50 UTC | May 18, 08:45 UTC | 22h 55m |
| 2026-05-17 | AFR934 | CDG → TNR | May 17, 09:25 UTC | May 18, 07:45 UTC | 22h 20m |
| 2026-05-17 | AFR829 | COF → COF | May 17, 01:45 UTC | May 17, 05:05 UTC | 3h 20m |
| 2026-05-16 | AFR828 | CDG → NBO | May 16, 09:45 UTC | May 16, 12:40 UTC | 2h 55m |
| 2026-05-16 | AFR940 | CDG → COO | May 16, 04:10 UTC | May 16, 06:55 UTC | 2h 46m |
| 2026-05-15 | AFR940 | CDG → COO | May 15, 09:50 UTC | May 16, 06:55 UTC | 21h 5m |
| 2026-05-15 | AFR940 | CDG → COO | May 15, 08:40 UTC | May 16, 06:55 UTC | 22h 15m |
| 2026-05-14 | AFR149 | LOS → CDG | May 14, 13:50 UTC | May 15, 05:10 UTC | 15h 20m |
| 2026-05-14 | AFR935 | TNR → CDG | May 14, 05:10 UTC | May 14, 08:35 UTC | 3h 25m |
| 2026-05-13 | AFR935 | TNR → CDG | May 13, 09:50 UTC | May 14, 08:35 UTC | 22h 45m |
| 2026-05-13 | AFR935 | TNR → CDG | May 13, 08:50 UTC | May 14, 07:45 UTC | 22h 55m |
| 2026-05-12 | AFR111 | PVG → CDG | May 12, 22:01 UTC | May 13, 03:25 UTC | 5h 25m |
| 2026-05-11 | AFR116 | CDG → PVG | May 11, 21:55 UTC | May 11, 22:35 UTC | 39m |
| 2026-05-10 | AFR706 | ABJ → DSS | May 10, 17:30 UTC | May 11, 08:55 UTC | 15h 25m |
| 2026-05-10 | AFR377 | DTW → CDG | May 10, 01:45 UTC | May 10, 08:54 UTC | 7h 10m |
| 2026-05-09 | AFR378E | CDG → DTW | May 9, 14:50 UTC | May 9, 22:39 UTC | 7h 50m |
| 2026-05-08 | AFR706 | ABJ → DSS | May 8, 17:25 UTC | May 9, 09:25 UTC | 16h 0m |
| 2026-05-08 | AFR33J | ATL → CDG | May 8, 00:20 UTC | May 8, 08:09 UTC | 7h 50m |
| 2026-05-07 | AFR32J | CDG → ATL | May 7, 12:25 UTC | May 7, 21:45 UTC | 9h 20m |
| 2026-05-06 | AFR217 | BOM → CDG | May 6, 13:50 UTC | May 7, 07:55 UTC | 18h 5m |
| 2026-05-06 | AFR217 | BOM → CDG | May 6, 12:15 UTC | May 7, 07:55 UTC | 19h 40m |
| 2026-05-06 | AFR377 | DTW → CDG | May 6, 01:20 UTC | May 6, 08:35 UTC | 7h 15m |
| 2026-05-05 | AFR378E | CDG → DTW | May 5, 14:10 UTC | May 5, 22:10 UTC | 8h 0m |
| 2026-05-05 | AFR009 | - | May 5, 03:55 UTC | May 5, 10:30 UTC | 6h 35m |
| 2026-05-04 | AFR010 | CDG → JFK | May 4, 16:50 UTC | May 5, 00:15 UTC | 7h 26m |
| 2026-05-04 | AFR935 | TNR → CDG | May 4, 05:15 UTC | May 4, 08:40 UTC | 3h 25m |
| 2026-05-03 | AFR935 | TNR → CDG | May 3, 09:50 UTC | May 4, 08:40 UTC | 22h 50m |
| 2026-05-03 | AFR935 | TNR → CDG | May 3, 08:40 UTC | May 4, 07:45 UTC | 23h 5m |
| 2026-05-01 | AFR706 | ABJ → DSS | May 1, 17:05 UTC | May 2, 08:40 UTC | 15h 35m |
| 2026-05-01 | AFR377 | DTW → CDG | May 1, 01:40 UTC | May 1, 09:05 UTC | 7h 25m |
| 2026-04-30 | AFR378E | CDG → DTW | Apr 30, 14:30 UTC | Apr 30, 22:15 UTC | 7h 45m |
| 2026-04-30 | AFR935 | TNR → CDG | Apr 30, 05:35 UTC | Apr 30, 09:05 UTC | 3h 30m |
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-GSPX page for operator, model, and routing details .