sensors Mode-S transponder
3949EE
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-GSPO · BOEING 777-200
- Hex
- 3949EE
- Octal
- 16244756
- Decimal
- 3,754,478
- Country
- FR
- Tail
- F-GSPO
- Type
- B772
- Flights observed
- 100
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 3949EE 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 |
|---|---|---|---|
| AFR989 | - | 6 | 2026-05-15 |
| AFR935 | Air France | 6 | 2026-04-23 |
| AFR284 | Air France | 6 | 2026-05-21 |
| AFR283 | Air France | 6 | 2026-05-21 |
| AFR465 | Air France | 5 | 2026-05-23 |
| AFR378E | Air France | 5 | 2026-05-27 |
| AFR111 | Air France | 5 | 2026-05-19 |
| AFR010 | Air France | 5 | 2026-05-01 |
| AFR149 | Air France | 4 | 2026-05-29 |
| AFR116 | Air France | 4 | 2026-05-18 |
| AFR009 | - | 4 | 2026-05-02 |
| AFR940 | Air France | 3 | 2026-05-07 |
| AFR926 | Air France | 3 | 2026-05-11 |
| AFR828 | Air France | 3 | 2026-04-15 |
| AFR377 | Air France | 3 | 2026-05-28 |
| AFR357E | Air France | 3 | 2026-05-15 |
| AFR356G | Air France | 3 | 2026-05-15 |
| AFR218 | Air France | 3 | 2026-05-30 |
| AFR829 | Air France | 2 | 2026-04-16 |
| AFR501 | Air France | 2 | 2026-05-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | AFR218 | CDG → BOM | May 30, 09:40 UTC | May 30, 11:30 UTC | 1h 50m |
| 2026-05-29 | AFR149 | LOS → CDG | May 29, 13:55 UTC | May 30, 05:40 UTC | 15h 45m |
| 2026-05-28 | AFR805 | COO → CDG | May 28, 14:30 UTC | May 29, 05:50 UTC | 15h 20m |
| 2026-05-28 | AFR377 | DTW → CDG | May 28, 01:10 UTC | May 28, 08:20 UTC | 7h 10m |
| 2026-05-27 | AFR378E | CDG → DTW | May 27, 20:45 UTC | May 27, 22:35 UTC | 1h 50m |
| 2026-05-27 | AFR378E | CDG → DTW | May 27, 14:55 UTC | May 27, 20:40 UTC | 5h 45m |
| 2026-05-27 | AFR59N | DEN → CDG | May 27, 00:10 UTC | May 27, 09:10 UTC | 9h 0m |
| 2026-05-26 | AFR58P | CDG → DEN | May 26, 11:44 UTC | May 26, 21:20 UTC | 9h 35m |
| 2026-05-26 | AFR377 | DTW → CDG | May 26, 01:49 UTC | May 26, 08:50 UTC | 7h 0m |
| 2026-05-25 | AFR378E | CDG → DTW | May 25, 14:35 UTC | May 25, 22:49 UTC | 8h 14m |
| 2026-05-24 | AFR378E | CDG → DTW | May 24, 14:35 UTC | May 25, 08:25 UTC | 17h 50m |
| 2026-05-23 | AFR465 | SSA → CDG | May 23, 11:35 UTC | May 24, 06:30 UTC | 18h 55m |
| 2026-05-23 | AFR465 | SSA → CDG | May 23, 09:35 UTC | May 24, 06:30 UTC | 20h 55m |
| 2026-05-23 | AFR465 | SSA → CDG | May 23, 08:45 UTC | May 24, 06:30 UTC | 21h 45m |
| 2026-05-22 | AFR132 | CDG → DFW | May 22, 14:15 UTC | May 23, 05:30 UTC | 15h 14m |
| 2026-05-21 | AFR283 | CDG → NRT | May 21, 19:50 UTC | May 22, 04:10 UTC | 8h 20m |
| 2026-05-21 | AFR284 | NRT → CDG | May 21, 09:25 UTC | May 21, 17:30 UTC | 8h 5m |
| 2026-05-20 | AFR465 | SSA → CDG | May 20, 11:35 UTC | May 21, 05:50 UTC | 18h 15m |
| 2026-05-20 | AFR465 | SSA → CDG | May 20, 09:35 UTC | May 21, 05:50 UTC | 20h 15m |
| 2026-05-20 | AFR476 | CDG → HAV | May 20, 08:30 UTC | May 21, 05:50 UTC | 21h 20m |
| 2026-05-19 | AFR111 | PVG → CDG | May 19, 15:15 UTC | May 20, 03:40 UTC | 12h 25m |
| 2026-05-19 | AFR111 | PVG → CDG | May 19, 08:00 UTC | May 20, 03:40 UTC | 19h 40m |
| 2026-05-18 | AFR116 | CDG → PVG | May 18, 23:35 UTC | May 19, 23:30 UTC | 23h 55m |
| 2026-05-18 | AFR116 | CDG → PVG | May 18, 21:50 UTC | May 19, 19:40 UTC | 21h 50m |
| 2026-05-17 | AFR501 | ABJ → ACC | May 17, 00:10 UTC | May 17, 11:35 UTC | 11h 25m |
| 2026-05-16 | AFR500 | ACC → ABJ | May 16, 08:46 UTC | May 16, 19:30 UTC | 10h 45m |
| 2026-05-15 | AFR357E | YYZ → CDG | May 15, 22:15 UTC | May 16, 05:10 UTC | 6h 55m |
| 2026-05-15 | AFR356G | CDG → YYZ | May 15, 12:15 UTC | May 15, 19:45 UTC | 7h 29m |
| 2026-05-15 | AFR989 | - | May 15, 02:00 UTC | May 15, 03:40 UTC | 1h 40m |
| 2026-05-14 | AFR989 | - | May 14, 20:55 UTC | May 14, 21:05 UTC | 10m |
| 2026-05-14 | AFR988 | POB → POB | May 14, 09:25 UTC | May 14, 16:00 UTC | 6h 35m |
| 2026-05-13 | AFR149 | LOS → CDG | May 13, 14:51 UTC | May 14, 06:15 UTC | 15h 25m |
| 2026-05-11 | AFR926 | CDG → LBV | May 11, 09:35 UTC | May 12, 03:50 UTC | 18h 15m |
| 2026-05-11 | AFR926 | CDG → LBV | May 11, 09:15 UTC | May 12, 03:50 UTC | 18h 36m |
| 2026-05-09 | AFR971 | LAD → CDG | May 9, 23:00 UTC | May 10, 07:25 UTC | 8h 25m |
| 2026-05-09 | AFR972 | CDG → LAD | May 9, 11:45 UTC | May 9, 19:49 UTC | 8h 5m |
| 2026-05-08 | AFR217 | BOM → CDG | May 8, 21:20 UTC | May 9, 05:45 UTC | 8h 25m |
| 2026-05-08 | AFR218 | CDG → BOM | May 8, 17:10 UTC | May 8, 17:55 UTC | 45m |
| 2026-05-08 | AFR218 | CDG → BOM | May 8, 09:25 UTC | May 8, 16:30 UTC | 7h 5m |
| 2026-05-07 | AFR132 | CDG → DFW | May 7, 13:55 UTC | May 8, 05:14 UTC | 15h 19m |
| 2026-05-07 | AFR940 | CDG → COO | May 7, 05:40 UTC | May 7, 08:15 UTC | 2h 35m |
| 2026-05-06 | AFR940 | CDG → COO | May 6, 11:35 UTC | May 7, 08:15 UTC | 20h 40m |
| 2026-05-06 | AFR940 | CDG → COO | May 6, 09:35 UTC | May 7, 08:15 UTC | 22h 40m |
| 2026-05-05 | AFR111 | PVG → CDG | May 5, 15:25 UTC | May 6, 03:40 UTC | 12h 15m |
| 2026-05-05 | AFR111 | PVG → CDG | May 5, 08:05 UTC | May 6, 03:40 UTC | 19h 35m |
| 2026-05-05 | AFR111 | PVG → CDG | May 5, 01:50 UTC | May 6, 01:30 UTC | 23h 40m |
| 2026-05-04 | AFR116 | CDG → PVG | May 4, 23:35 UTC | May 5, 23:30 UTC | 23h 55m |
| 2026-05-04 | AFR116 | CDG → PVG | May 4, 21:55 UTC | May 5, 15:50 UTC | 17h 55m |
| 2026-05-03 | AFR081 | SFO → CDG | May 3, 03:55 UTC | May 3, 14:10 UTC | 10h 15m |
| 2026-05-02 | AFR82M | CDG → SFO | May 2, 14:15 UTC | May 3, 01:10 UTC | 10h 55m |
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-GSPO page for operator, model, and routing details .