sensors Mode-S transponder
3949E8
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-GSPI · BOEING 777-200
- Hex
- 3949E8
- Octal
- 16244750
- Decimal
- 3,754,472
- Country
- FR
- Tail
- F-GSPI
- Type
- B772
- Flights observed
- 82
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 3949E8 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 |
|---|---|---|---|
| AFR356G | Air France | 8 | 2026-05-21 |
| AFR357E | Air France | 6 | 2026-05-21 |
| AFR111 | Air France | 6 | 2026-05-17 |
| AFR187 | Air France | 5 | 2026-05-16 |
| AFR217 | Air France | 4 | 2026-05-20 |
| AFR933 | Air France | 3 | 2026-04-15 |
| AFR923 | Air France | 3 | 2026-05-26 |
| AFR465 | Air France | 3 | 2026-05-06 |
| AFR377 | Air France | 3 | 2026-05-23 |
| AFR328K | Air France | 3 | 2026-05-07 |
| AFR327 | Air France | 3 | 2026-05-07 |
| AFR186 | Air France | 3 | 2026-05-15 |
| AFR837 | Air France | 2 | 2026-05-27 |
| AFR378E | Air France | 2 | 2026-05-22 |
| AFR218 | Air France | 2 | 2026-05-20 |
| AFR149 | Air France | 2 | 2026-05-12 |
| AFR116 | Air France | 2 | 2026-05-16 |
| AFR972 | Air France | 1 | 2026-05-02 |
| AFR971 | Air France | 1 | 2026-05-02 |
| AFR940 | Air France | 1 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | AFR940 | CDG → COO | May 29, 09:05 UTC | May 29, 11:25 UTC | 2h 20m |
| 2026-05-28 | AFR031 | ATL → CDG | May 28, 20:40 UTC | May 29, 04:20 UTC | 7h 40m |
| 2026-05-28 | AFR030 | CDG → ATL | May 28, 09:15 UTC | May 28, 17:35 UTC | 8h 20m |
| 2026-05-27 | AFR837 | DLA → CDG | May 27, 08:20 UTC | May 28, 03:40 UTC | 19h 20m |
| 2026-05-26 | AFR923 | LBV → CDG | May 26, 09:25 UTC | May 27, 03:20 UTC | 17h 55m |
| 2026-05-25 | AFR805 | COO → CDG | May 25, 14:40 UTC | May 26, 06:04 UTC | 15h 25m |
| 2026-05-25 | AFR59N | DEN → CDG | May 25, 01:55 UTC | May 25, 09:00 UTC | 7h 5m |
| 2026-05-24 | AFR58P | CDG → DEN | May 24, 12:10 UTC | May 24, 21:40 UTC | 9h 30m |
| 2026-05-23 | AFR345M | YUL → CDG | May 23, 23:20 UTC | May 24, 05:35 UTC | 6h 15m |
| 2026-05-23 | AFR344 | CDG → YUL | May 23, 12:00 UTC | May 23, 19:00 UTC | 7h 0m |
| 2026-05-23 | AFR377 | DTW → CDG | May 23, 01:10 UTC | May 23, 08:00 UTC | 6h 50m |
| 2026-05-22 | AFR378E | CDG → DTW | May 22, 14:20 UTC | May 22, 22:10 UTC | 7h 50m |
| 2026-05-21 | AFR357E | YYZ → CDG | May 21, 22:20 UTC | May 22, 04:35 UTC | 6h 15m |
| 2026-05-21 | AFR356G | CDG → YYZ | May 21, 11:55 UTC | May 21, 19:25 UTC | 7h 30m |
| 2026-05-20 | AFR217 | BOM → CDG | May 20, 22:35 UTC | May 21, 07:25 UTC | 8h 50m |
| 2026-05-20 | AFR218 | CDG → BOM | May 20, 11:15 UTC | May 20, 19:45 UTC | 8h 30m |
| 2026-05-19 | AFR217 | BOM → CDG | May 19, 20:10 UTC | May 20, 05:20 UTC | 9h 11m |
| 2026-05-19 | AFR218 | CDG → BOM | May 19, 09:10 UTC | May 19, 17:50 UTC | 8h 40m |
| 2026-05-18 | AFR357E | YYZ → CDG | May 18, 22:20 UTC | May 19, 05:15 UTC | 6h 55m |
| 2026-05-18 | AFR356G | CDG → YYZ | May 18, 18:35 UTC | May 18, 20:00 UTC | 1h 25m |
| 2026-05-18 | AFR356G | CDG → YYZ | May 18, 12:35 UTC | May 18, 18:25 UTC | 5h 50m |
| 2026-05-17 | AFR111 | PVG → CDG | May 17, 08:25 UTC | May 18, 03:30 UTC | 19h 5m |
| 2026-05-17 | AFR111 | PVG → CDG | May 17, 02:05 UTC | May 18, 00:05 UTC | 22h 0m |
| 2026-05-17 | AFR111 | PVG → CDG | May 17, 00:05 UTC | May 18, 00:00 UTC | 23h 55m |
| 2026-05-16 | AFR116 | CDG → PVG | May 16, 21:55 UTC | May 17, 15:45 UTC | 17h 50m |
| 2026-05-16 | AFR187 | CDG → LAS | May 16, 00:30 UTC | May 16, 14:16 UTC | 13h 46m |
| 2026-05-15 | AFR186 | LAS → CDG | May 15, 07:55 UTC | May 15, 21:00 UTC | 13h 5m |
| 2026-05-14 | AFR283 | CDG → NRT | May 14, 20:00 UTC | May 15, 04:20 UTC | 8h 20m |
| 2026-05-14 | AFR284 | NRT → CDG | May 14, 09:45 UTC | May 14, 17:35 UTC | 7h 50m |
| 2026-05-13 | AFR357E | YYZ → CDG | May 13, 22:10 UTC | May 14, 05:10 UTC | 7h 0m |
| 2026-05-13 | AFR356G | CDG → YYZ | May 13, 12:15 UTC | May 13, 19:50 UTC | 7h 35m |
| 2026-05-12 | AFR149 | LOS → CDG | May 12, 13:55 UTC | May 13, 05:30 UTC | 15h 35m |
| 2026-05-12 | AFR377 | DTW → CDG | May 12, 03:10 UTC | May 12, 08:30 UTC | 5h 20m |
| 2026-05-12 | AFR377 | DTW → CDG | May 12, 02:45 UTC | May 12, 03:05 UTC | 20m |
| 2026-05-11 | AFR378E | CDG → DTW | May 11, 14:15 UTC | May 11, 22:35 UTC | 8h 20m |
| 2026-05-10 | AFR217 | BOM → CDG | May 10, 10:05 UTC | May 11, 05:50 UTC | 19h 45m |
| 2026-05-10 | AFR217 | BOM → CDG | May 10, 09:10 UTC | May 11, 05:50 UTC | 20h 40m |
| 2026-05-07 | AFR327 | YOW → CDG | May 7, 21:20 UTC | May 8, 03:39 UTC | 6h 19m |
| 2026-05-07 | AFR328K | CDG → YOW | May 7, 11:55 UTC | May 7, 19:05 UTC | 7h 10m |
| 2026-05-06 | AFR465 | SSA → CDG | May 6, 12:05 UTC | May 7, 06:45 UTC | 18h 39m |
| 2026-05-06 | AFR476 | CDG → HAV | May 6, 10:05 UTC | May 7, 06:45 UTC | 20h 39m |
| 2026-05-05 | AFR923 | LBV → CDG | May 5, 08:55 UTC | May 6, 03:30 UTC | 18h 35m |
| 2026-05-04 | AFR132 | CDG → DFW | May 4, 13:55 UTC | May 5, 05:30 UTC | 15h 36m |
| 2026-05-04 | AFR33J | ATL → CDG | May 4, 00:15 UTC | May 4, 08:05 UTC | 7h 50m |
| 2026-05-03 | AFR32J | CDG → ATL | May 3, 12:15 UTC | May 3, 21:10 UTC | 8h 55m |
| 2026-05-02 | AFR971 | LAD → CDG | May 2, 22:55 UTC | May 3, 07:35 UTC | 8h 39m |
| 2026-05-02 | AFR972 | CDG → LAD | May 2, 11:40 UTC | May 2, 19:10 UTC | 7h 30m |
| 2026-05-01 | AFR923 | LBV → CDG | May 1, 09:25 UTC | May 2, 03:30 UTC | 18h 5m |
| 2026-04-30 | AFR149 | LOS → CDG | Apr 30, 13:55 UTC | May 1, 06:20 UTC | 16h 25m |
| 2026-04-29 | AFR465 | SSA → CDG | Apr 29, 10:05 UTC | Apr 30, 05:55 UTC | 19h 49m |
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-GSPI page for operator, model, and routing details .