sensors Mode-S transponder
3965A1
ICAO 24-bit transponder address · allocated to France
Currently assigned to F-GZNB · BOEING 777-300ER
- Hex
- 3965A1
- Octal
- 16262641
- Decimal
- 3,761,569
- Country
- FR
- Tail
- F-GZNB
- Type
- B77W
- Flights observed
- 91
- Distinct callsigns
- 20
- Country
- FR
- Last broadcast
- 40m ago
Last known position
Country allocation
The ICAO 24-bit address 3965A1 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 |
|---|---|---|---|
| AFR83K | Air France | 11 | 2026-05-20 |
| AFR51N | Air France | 11 | 2026-05-29 |
| AFR50N | Air France | 10 | 2026-05-29 |
| AFR453 | Air France | 9 | 2026-05-28 |
| AFR84E | Air France | 7 | 2026-05-20 |
| AFR454 | Air France | 7 | 2026-05-27 |
| AFR702 | Air France | 5 | 2026-05-26 |
| AFR031 | Air France | 4 | 2026-05-24 |
| AFR030 | Air France | 4 | 2026-05-24 |
| AFR703 | Air France | 3 | 2026-05-22 |
| AFR2N | Air France | 3 | 2026-04-16 |
| AFR1U | Air France | 3 | 2026-04-17 |
| AFR443 | Air France | 2 | 2026-04-30 |
| AFR442 | Air France | 2 | 2026-04-29 |
| AFR182 | Air France | 2 | 2026-05-02 |
| AFR933 | Air France | 1 | 2026-04-28 |
| AFR930 | Air France | 1 | 2026-04-27 |
| AFR719 | Air France | 1 | 2026-04-30 |
| AFR718 | Air France | 1 | 2026-04-30 |
| AFR705 | Air France | 1 | 2026-04-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | AFR51N | IAD → CDG | May 29, 22:30 UTC | May 30, 00:15 UTC | 1h 45m |
| 2026-05-29 | AFR50N | CDG → IAD | May 29, 12:05 UTC | May 29, 19:40 UTC | 7h 35m |
| 2026-05-28 | AFR453 | GRU → CDG | May 28, 17:50 UTC | May 29, 04:25 UTC | 10h 35m |
| 2026-05-27 | AFR454 | CDG → GRU | May 27, 22:00 UTC | May 28, 09:20 UTC | 11h 20m |
| 2026-05-26 | AFR702 | CDG → ABJ | May 26, 12:40 UTC | May 27, 03:59 UTC | 15h 20m |
| 2026-05-25 | AFR51N | IAD → CDG | May 25, 22:34 UTC | May 26, 05:25 UTC | 6h 50m |
| 2026-05-25 | AFR50N | CDG → IAD | May 25, 12:20 UTC | May 25, 20:09 UTC | 7h 49m |
| 2026-05-24 | AFR031 | ATL → CDG | May 24, 20:50 UTC | May 25, 04:40 UTC | 7h 50m |
| 2026-05-24 | AFR030 | CDG → ATL | May 24, 09:05 UTC | May 24, 17:55 UTC | 8h 50m |
| 2026-05-23 | AFR031 | ATL → CDG | May 23, 21:00 UTC | May 24, 04:35 UTC | 7h 35m |
| 2026-05-23 | AFR030 | CDG → ATL | May 23, 09:10 UTC | May 23, 18:00 UTC | 8h 50m |
| 2026-05-22 | AFR703 | ABJ → CDG | May 22, 12:40 UTC | May 23, 04:20 UTC | 15h 39m |
| 2026-05-21 | AFR51N | IAD → CDG | May 21, 22:35 UTC | May 22, 05:00 UTC | 6h 25m |
| 2026-05-21 | AFR50N | CDG → IAD | May 21, 12:05 UTC | May 21, 20:05 UTC | 8h 0m |
| 2026-05-20 | AFR83K | SFO → CDG | May 20, 22:30 UTC | May 21, 08:20 UTC | 9h 50m |
| 2026-05-20 | AFR84E | CDG → SFO | May 20, 08:40 UTC | May 20, 19:10 UTC | 10h 30m |
| 2026-05-19 | AFR453 | GRU → CDG | May 19, 17:55 UTC | May 20, 04:40 UTC | 10h 46m |
| 2026-05-18 | AFR454 | CDG → GRU | May 18, 21:50 UTC | May 19, 08:50 UTC | 11h 0m |
| 2026-05-17 | AFR51N | IAD → CDG | May 17, 22:40 UTC | May 18, 05:30 UTC | 6h 50m |
| 2026-05-17 | AFR50N | CDG → IAD | May 17, 11:50 UTC | May 17, 19:50 UTC | 8h 0m |
| 2026-05-16 | AFR51N | IAD → CDG | May 16, 22:30 UTC | May 17, 05:25 UTC | 6h 55m |
| 2026-05-16 | AFR50N | CDG → IAD | May 16, 11:51 UTC | May 16, 19:45 UTC | 7h 55m |
| 2026-05-15 | AFR51N | IAD → CDG | May 15, 22:40 UTC | May 16, 05:35 UTC | 6h 55m |
| 2026-05-15 | AFR50N | CDG → IAD | May 15, 12:00 UTC | May 15, 20:05 UTC | 8h 4m |
| 2026-05-14 | AFR453 | GRU → CDG | May 14, 18:00 UTC | May 15, 04:30 UTC | 10h 30m |
| 2026-05-13 | AFR454 | CDG → GRU | May 13, 22:10 UTC | May 14, 09:20 UTC | 11h 10m |
| 2026-05-12 | AFR83K | SFO → CDG | May 12, 22:40 UTC | May 13, 08:40 UTC | 10h 0m |
| 2026-05-12 | AFR84E | CDG → SFO | May 12, 08:45 UTC | May 12, 19:50 UTC | 11h 5m |
| 2026-05-11 | AFR031 | ATL → CDG | May 11, 20:55 UTC | May 12, 04:35 UTC | 7h 40m |
| 2026-05-11 | AFR030 | CDG → ATL | May 11, 09:10 UTC | May 11, 17:40 UTC | 8h 30m |
| 2026-05-10 | AFR702 | CDG → ABJ | May 10, 12:30 UTC | May 11, 04:05 UTC | 15h 35m |
| 2026-05-09 | AFR83K | SFO → CDG | May 9, 22:25 UTC | May 10, 08:45 UTC | 10h 20m |
| 2026-05-09 | AFR84E | CDG → SFO | May 9, 08:50 UTC | May 9, 19:35 UTC | 10h 45m |
| 2026-05-08 | AFR257 | SIN → CDG | May 8, 15:00 UTC | May 9, 03:55 UTC | 12h 55m |
| 2026-05-07 | AFR256 | CDG → SIN | May 7, 22:00 UTC | May 8, 09:39 UTC | 11h 39m |
| 2026-05-06 | AFR83K | SFO → CDG | May 6, 22:35 UTC | May 7, 08:55 UTC | 10h 20m |
| 2026-05-06 | AFR84E | CDG → SFO | May 6, 08:55 UTC | May 6, 19:25 UTC | 10h 29m |
| 2026-05-05 | AFR031 | ATL → CDG | May 5, 20:35 UTC | May 6, 04:35 UTC | 8h 0m |
| 2026-05-05 | AFR030 | CDG → ATL | May 5, 09:10 UTC | May 5, 17:45 UTC | 8h 35m |
| 2026-05-03 | AFR181 | SIN → CDG | May 3, 03:35 UTC | May 3, 16:25 UTC | 12h 50m |
| 2026-05-02 | AFR182 | CDG → SIN | May 2, 20:45 UTC | May 2, 23:45 UTC | 3h 0m |
| 2026-05-02 | AFR182 | CDG → SIN | May 2, 11:35 UTC | May 2, 20:40 UTC | 9h 5m |
| 2026-05-01 | AFR702 | CDG → ABJ | May 1, 12:40 UTC | May 2, 04:05 UTC | 15h 25m |
| 2026-04-30 | AFR719 | DSS → CDG | Apr 30, 23:45 UTC | May 1, 04:45 UTC | 5h 0m |
| 2026-04-30 | AFR718 | CDG → DSS | Apr 30, 15:40 UTC | Apr 30, 20:45 UTC | 5h 5m |
| 2026-04-30 | AFR443 | GIG → CDG | Apr 30, 03:45 UTC | Apr 30, 11:55 UTC | 8h 10m |
| 2026-04-30 | AFR443 | GIG → CDG | Apr 30, 01:35 UTC | Apr 30, 03:40 UTC | 2h 5m |
| 2026-04-29 | AFR442 | CDG → GIG | Apr 29, 22:45 UTC | Apr 29, 23:05 UTC | 19m |
| 2026-04-29 | AFR442 | CDG → GIG | Apr 29, 12:05 UTC | Apr 29, 22:00 UTC | 9h 55m |
| 2026-04-28 | AFR933 | LAD → CDG | Apr 28, 21:45 UTC | Apr 29, 06:25 UTC | 8h 40m |
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-GZNB page for operator, model, and routing details .