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
- 148
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 7d 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 |
|---|---|---|---|
| AFR89U | - | 8 | 2026-07-05 |
| AFR356G | Air France | 8 | 2026-05-21 |
| AFR088 | - | 8 | 2026-07-04 |
| AFR902 | - | 7 | 2026-07-03 |
| AFR874 | - | 7 | 2026-07-02 |
| AFR357E | Air France | 6 | 2026-05-21 |
| AFR111 | Air France | 6 | 2026-05-17 |
| AFR828 | - | 5 | 2026-06-28 |
| AFR377 | - | 5 | 2026-06-23 |
| AFR328K | - | 5 | 2026-07-05 |
| AFR327 | - | 5 | 2026-07-05 |
| AFR217 | - | 5 | 2026-07-06 |
| AFR187 | Air France | 5 | 2026-05-16 |
| AFR378E | - | 4 | 2026-06-22 |
| AFR940 | Air France | 3 | 2026-05-30 |
| AFR933 | Air France | 3 | 2026-04-15 |
| AFR923 | Air France | 3 | 2026-05-26 |
| AFR829 | - | 3 | 2026-06-29 |
| AFR465 | Air France | 3 | 2026-05-06 |
| AFR218 | - | 3 | 2026-07-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-06 | AFR217 | - | Jul 6, 20:35 UTC | Jul 7, 05:45 UTC | 9h 10m |
| 2026-07-06 | AFR218 | - | Jul 6, 09:50 UTC | Jul 6, 18:15 UTC | 8h 25m |
| 2026-07-05 | AFR327 | - | Jul 5, 22:30 UTC | Jul 6, 04:45 UTC | 6h 15m |
| 2026-07-05 | AFR328K | - | Jul 5, 13:05 UTC | Jul 5, 20:10 UTC | 7h 5m |
| 2026-07-05 | AFR89U | - | Jul 5, 02:20 UTC | Jul 5, 09:55 UTC | 7h 35m |
| 2026-07-04 | AFR088 | - | Jul 4, 14:10 UTC | Jul 4, 22:35 UTC | 8h 25m |
| 2026-07-03 | AR902 | NSI → CDG | Jul 3, 22:00 UTC | Jul 4, 04:55 UTC | 6h 55m |
| 2026-07-03 | AFR902 | - | Jul 3, 19:55 UTC | Jul 3, 20:10 UTC | 15m |
| 2026-07-03 | AFR902 | - | Jul 3, 11:40 UTC | Jul 3, 13:10 UTC | 1h 30m |
| 2026-07-02 | AFR874 | - | Jul 2, 12:15 UTC | Jul 3, 06:40 UTC | 18h 25m |
| 2026-07-02 | AFR874 | - | Jul 2, 10:05 UTC | Jul 3, 06:40 UTC | 20h 35m |
| 2026-07-02 | AFR874 | - | Jul 2, 08:50 UTC | Jul 3, 06:40 UTC | 21h 50m |
| 2026-07-01 | AFR902 | - | Jul 1, 11:30 UTC | Jul 2, 04:50 UTC | 17h 20m |
| 2026-06-30 | AFR874 | - | Jun 30, 12:05 UTC | Jul 1, 07:05 UTC | 19h 0m |
| 2026-06-30 | AFR874 | - | Jun 30, 10:05 UTC | Jul 1, 07:05 UTC | 21h 0m |
| 2026-06-29 | AFR836 | - | Jun 29, 08:29 UTC | Jun 30, 03:55 UTC | 19h 26m |
| 2026-06-29 | AFR829 | - | Jun 29, 01:29 UTC | Jun 29, 04:25 UTC | 2h 55m |
| 2026-06-28 | AFR828 | - | Jun 28, 17:44 UTC | Jun 28, 18:00 UTC | 15m |
| 2026-06-28 | AFR828 | - | Jun 28, 09:45 UTC | Jun 28, 12:44 UTC | 3h 0m |
| 2026-06-28 | AFR829 | - | Jun 28, 01:25 UTC | Jun 28, 04:25 UTC | 3h 0m |
| 2026-06-27 | AFR828 | - | Jun 27, 17:44 UTC | Jun 27, 17:59 UTC | 15m |
| 2026-06-27 | AFR828 | - | Jun 27, 09:50 UTC | Jun 27, 13:30 UTC | 3h 40m |
| 2026-06-27 | AFR829 | - | Jun 27, 00:44 UTC | Jun 27, 04:39 UTC | 3h 55m |
| 2026-06-26 | AFR828 | - | Jun 26, 09:50 UTC | Jun 26, 13:24 UTC | 3h 35m |
| 2026-06-25 | AFR989 | - | Jun 25, 09:59 UTC | Jun 26, 03:54 UTC | 17h 55m |
| 2026-06-24 | AFR902 | - | Jun 24, 12:09 UTC | Jun 25, 05:50 UTC | 17h 40m |
| 2026-06-23 | AFR327 | YOW → CDG | Jun 23, 21:39 UTC | Jun 24, 03:50 UTC | 6h 10m |
| 2026-06-23 | AFR328K | - | Jun 23, 11:49 UTC | Jun 23, 19:00 UTC | 7h 10m |
| 2026-06-23 | AFR377 | - | Jun 23, 01:54 UTC | Jun 23, 08:45 UTC | 6h 50m |
| 2026-06-22 | AFR378E | - | Jun 22, 15:20 UTC | Jun 22, 23:24 UTC | 8h 5m |
| 2026-06-22 | AFR35T | ATL → CDG | Jun 22, 02:54 UTC | Jun 22, 10:34 UTC | 7h 40m |
| 2026-06-21 | AFR34N | CDG → ATL | Jun 21, 15:19 UTC | Jun 22, 00:04 UTC | 8h 45m |
| 2026-06-21 | AFR89U | MSP → CDG | Jun 21, 01:14 UTC | Jun 21, 08:49 UTC | 7h 35m |
| 2026-06-20 | AFR088 | CDG → SFO | Jun 20, 14:05 UTC | Jun 20, 22:30 UTC | 8h 25m |
| 2026-06-20 | AFR33J | - | Jun 20, 00:19 UTC | Jun 20, 08:14 UTC | 7h 55m |
| 2026-06-19 | AFR32J | CDG → ATL | Jun 19, 12:54 UTC | Jun 19, 21:39 UTC | 8h 45m |
| 2026-06-19 | AFR89U | MSP → CDG | Jun 19, 01:50 UTC | Jun 19, 09:24 UTC | 7h 35m |
| 2026-06-18 | AFR088 | CDG → SFO | Jun 18, 14:25 UTC | Jun 18, 22:35 UTC | 8h 10m |
| 2026-06-18 | AFR89U | MSP → CDG | Jun 18, 01:45 UTC | Jun 18, 09:35 UTC | 7h 50m |
| 2026-06-17 | AFR088 | CDG → SFO | Jun 17, 14:45 UTC | Jun 17, 23:05 UTC | 8h 20m |
| 2026-06-16 | AFR874 | CDG → ZNZ | Jun 16, 12:05 UTC | Jun 17, 06:50 UTC | 18h 46m |
| 2026-06-16 | AFR874 | CDG → ZNZ | Jun 16, 10:20 UTC | Jun 17, 06:50 UTC | 20h 31m |
| 2026-06-15 | AFR345M | - | Jun 15, 23:30 UTC | Jun 16, 05:34 UTC | 6h 5m |
| 2026-06-15 | AFR344 | - | Jun 15, 12:35 UTC | Jun 15, 19:30 UTC | 6h 55m |
| 2026-06-14 | AFR804 | CDG → COO | Jun 14, 14:55 UTC | Jun 15, 05:40 UTC | 14h 45m |
| 2026-06-12 | AFR705 | - | Jun 12, 16:40 UTC | Jun 13, 07:25 UTC | 14h 44m |
| 2026-06-11 | AFR149 | - | Jun 11, 13:55 UTC | Jun 12, 07:40 UTC | 17h 46m |
| 2026-06-11 | AFR4191 | LHR → PEK | Jun 11, 02:25 UTC | Jun 11, 04:50 UTC | 2h 25m |
| 2026-06-09 | AFR836 | CDG → NBO | Jun 9, 08:40 UTC | Jun 9, 12:05 UTC | 3h 25m |
| 2026-06-07 | AFR902 | CDG → NSI | Jun 7, 17:40 UTC | Jun 8, 10:30 UTC | 16h 50m |
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 .