sensors Mode-S transponder
3949EF
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-GSPP · BOEING 777-200
- Hex
- 3949EF
- Octal
- 16244757
- Decimal
- 3,754,479
- Country
- FR
- Tail
- F-GSPP
- Type
- B772
- Flights observed
- 98
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 3949EF 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 |
|---|---|---|---|
| AFR186 | Air France | 12 | 2026-05-05 |
| AFR116 | Air France | 10 | 2026-05-24 |
| AFR187 | Air France | 9 | 2026-05-06 |
| AFR111 | Air France | 8 | 2026-05-24 |
| AFR828 | Air France | 6 | 2026-05-26 |
| AFR284 | Air France | 6 | 2026-05-25 |
| AFR935 | Air France | 4 | 2026-05-29 |
| AFR829 | Air France | 3 | 2026-05-27 |
| AFR465 | Air France | 3 | 2026-05-18 |
| AFR283 | Air France | 3 | 2026-05-25 |
| AFR149 | Air France | 3 | 2026-04-13 |
| AFR972 | Air France | 2 | 2026-04-25 |
| AFR940 | Air France | 2 | 2026-05-08 |
| AFR933 | Air France | 2 | 2026-05-12 |
| AFR930 | Air France | 2 | 2026-05-11 |
| AFR89U | Air France | 2 | 2026-05-20 |
| AFR805 | Air France | 2 | 2026-05-20 |
| AFR501 | Air France | 2 | 2026-05-14 |
| AFR500 | Air France | 2 | 2026-05-14 |
| AFR132 | Air France | 2 | 2026-05-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | AFR935 | TNR → CDG | May 29, 09:55 UTC | May 30, 08:55 UTC | 23h 0m |
| 2026-05-28 | AFR357E | YYZ → CDG | May 28, 22:40 UTC | May 29, 05:35 UTC | 6h 55m |
| 2026-05-28 | AFR356G | CDG → YYZ | May 28, 12:10 UTC | May 28, 19:25 UTC | 7h 15m |
| 2026-05-28 | AFR935 | TNR → CDG | May 28, 04:50 UTC | May 28, 08:15 UTC | 3h 25m |
| 2026-05-27 | AFR935 | TNR → CDG | May 27, 11:50 UTC | May 28, 08:15 UTC | 20h 25m |
| 2026-05-27 | AFR935 | TNR → CDG | May 27, 09:50 UTC | May 28, 08:15 UTC | 22h 25m |
| 2026-05-27 | AFR934 | CDG → TNR | May 27, 09:05 UTC | May 28, 07:45 UTC | 22h 40m |
| 2026-05-27 | AFR829 | COF → COF | May 27, 02:09 UTC | May 27, 04:55 UTC | 2h 45m |
| 2026-05-26 | AFR828 | CDG → NBO | May 26, 17:59 UTC | May 26, 18:10 UTC | 10m |
| 2026-05-26 | AFR828 | CDG → NBO | May 26, 09:59 UTC | May 26, 12:54 UTC | 2h 55m |
| 2026-05-25 | AFR283 | CDG → NRT | May 25, 19:50 UTC | May 26, 04:30 UTC | 8h 40m |
| 2026-05-25 | AFR284 | NRT → CDG | May 25, 09:40 UTC | May 25, 17:25 UTC | 7h 45m |
| 2026-05-24 | AFR111 | PVG → CDG | May 24, 23:40 UTC | May 25, 04:05 UTC | 4h 25m |
| 2026-05-24 | AFR116 | CDG → PVG | May 24, 01:50 UTC | May 24, 23:46 UTC | 21h 56m |
| 2026-05-23 | AFR116 | CDG → PVG | May 23, 23:50 UTC | May 24, 23:45 UTC | 23h 55m |
| 2026-05-23 | AFR116 | CDG → PVG | May 23, 21:55 UTC | May 24, 02:15 UTC | 4h 20m |
| 2026-05-20 | AFR805 | COO → CDG | May 20, 14:45 UTC | May 21, 05:25 UTC | 14h 40m |
| 2026-05-20 | AFR89U | MSP → CDG | May 20, 01:30 UTC | May 20, 09:00 UTC | 7h 31m |
| 2026-05-19 | AFR088 | CDG → SFO | May 19, 14:25 UTC | May 19, 23:05 UTC | 8h 40m |
| 2026-05-18 | AFR465 | SSA → CDG | May 18, 11:50 UTC | May 19, 06:10 UTC | 18h 19m |
| 2026-05-18 | AFR465 | SSA → CDG | May 18, 09:50 UTC | May 19, 06:10 UTC | 20h 19m |
| 2026-05-18 | AFR465 | SSA → CDG | May 18, 08:55 UTC | May 19, 06:10 UTC | 21h 14m |
| 2026-05-17 | AFR89U | MSP → CDG | May 17, 01:50 UTC | May 17, 09:20 UTC | 7h 30m |
| 2026-05-16 | AFR088 | CDG → SFO | May 16, 14:20 UTC | May 16, 22:50 UTC | 8h 30m |
| 2026-05-15 | AFR805 | COO → CDG | May 15, 15:20 UTC | May 16, 06:31 UTC | 15h 11m |
| 2026-05-14 | AFR501 | ABJ → ACC | May 14, 23:50 UTC | May 15, 11:25 UTC | 11h 35m |
| 2026-05-14 | AFR500 | ACC → ABJ | May 14, 08:30 UTC | May 14, 20:10 UTC | 11h 40m |
| 2026-05-12 | AFR933 | LAD → CDG | May 12, 21:40 UTC | May 13, 06:20 UTC | 8h 40m |
| 2026-05-11 | AFR930 | CDG → LAD | May 11, 20:45 UTC | May 12, 05:45 UTC | 9h 0m |
| 2026-05-11 | AFR007 | - | May 11, 02:25 UTC | May 11, 09:10 UTC | 6h 45m |
| 2026-05-10 | AFR8U | CDG → JFK | May 10, 15:15 UTC | May 10, 22:40 UTC | 7h 25m |
| 2026-05-10 | AFR501 | ABJ → ACC | May 10, 00:20 UTC | May 10, 10:19 UTC | 10h 0m |
| 2026-05-09 | AFR500 | ACC → ABJ | May 9, 08:55 UTC | May 9, 20:15 UTC | 11h 20m |
| 2026-05-08 | AFR940 | CDG → COO | May 8, 09:49 UTC | May 9, 05:05 UTC | 19h 15m |
| 2026-05-08 | AFR940 | CDG → COO | May 8, 08:59 UTC | May 9, 05:05 UTC | 20h 5m |
| 2026-05-07 | AFR111 | PVG → CDG | May 7, 07:55 UTC | May 8, 03:24 UTC | 19h 29m |
| 2026-05-07 | AFR111 | PVG → CDG | May 7, 01:50 UTC | May 8, 01:45 UTC | 23h 55m |
| 2026-05-06 | AFR111 | PVG → CDG | May 6, 23:50 UTC | May 7, 23:45 UTC | 23h 55m |
| 2026-05-06 | AFR116 | CDG → PVG | May 6, 21:45 UTC | May 7, 15:40 UTC | 17h 55m |
| 2026-05-06 | AFR187 | CDG → LAS | May 6, 00:25 UTC | May 6, 14:20 UTC | 13h 55m |
| 2026-05-05 | AFR186 | LAS → CDG | May 5, 08:05 UTC | May 5, 20:50 UTC | 12h 45m |
| 2026-05-03 | AFR132 | CDG → DFW | May 3, 13:50 UTC | May 4, 06:25 UTC | 16h 35m |
| 2026-05-02 | AFR132 | CDG → DFW | May 2, 14:00 UTC | May 3, 07:35 UTC | 17h 34m |
| 2026-05-01 | AFR111 | PVG → CDG | May 1, 08:15 UTC | May 2, 03:35 UTC | 19h 20m |
| 2026-05-01 | AFR111 | PVG → CDG | May 1, 01:50 UTC | May 2, 01:45 UTC | 23h 55m |
| 2026-04-30 | AFR116 | CDG → PVG | Apr 30, 23:50 UTC | May 1, 23:45 UTC | 23h 55m |
| 2026-04-30 | AFR116 | CDG → PVG | Apr 30, 21:55 UTC | May 1, 15:40 UTC | 17h 45m |
| 2026-04-29 | AFR804 | CDG → COO | Apr 29, 14:35 UTC | Apr 30, 08:25 UTC | 17h 49m |
| 2026-04-29 | AFR33J | ATL → CDG | Apr 29, 00:34 UTC | Apr 29, 08:45 UTC | 8h 10m |
| 2026-04-28 | AFR32J | CDG → ATL | Apr 28, 12:50 UTC | Apr 28, 21:35 UTC | 8h 45m |
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-GSPP page for operator, model, and routing details .