sensors Mode-S transponder
4243BC
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to VQ-BXG · DASSAULT Falcon 8X
- Hex
- 4243BC
- Octal
- 20441674
- Decimal
- 4,342,716
- Country
- GB
- Tail
- VQ-BXG
- Type
- FA8X
- Flights observed
- 33
- Distinct callsigns
- 2
- Country
- GB
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 4243BC falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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 2 distinct
Recent flights last 33
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-05 | PEX32G | - | Jun 5, 11:20 UTC | Jun 5, 11:45 UTC | 25m |
| 2026-06-05 | PEX32G | - | Jun 5, 08:25 UTC | Jun 5, 10:15 UTC | 1h 50m |
| 2026-06-05 | PEX32G | RTM → FAB | Jun 5, 06:10 UTC | Jun 5, 07:05 UTC | 55m |
| 2026-06-02 | PEX32G | LCY → RTM | Jun 2, 20:25 UTC | Jun 2, 21:05 UTC | 40m |
| 2026-06-02 | PEX32G | RTM → LCY | Jun 2, 18:40 UTC | Jun 2, 19:20 UTC | 40m |
| 2026-05-28 | PEX32G | - | May 28, 18:10 UTC | May 28, 18:45 UTC | 35m |
| 2026-05-28 | PEX32G | BRU → LTN | May 28, 16:40 UTC | May 28, 17:30 UTC | 50m |
| 2026-05-27 | PEX32G | - | May 27, 10:50 UTC | May 27, 11:30 UTC | 40m |
| 2026-05-27 | PEX32G | RTM → LTN | May 27, 08:35 UTC | May 27, 09:25 UTC | 50m |
| 2026-05-21 | PEX32G | - | May 21, 20:00 UTC | May 22, 04:05 UTC | 8h 5m |
| 2026-05-19 | PEX32G | - | May 19, 13:50 UTC | May 19, 17:20 UTC | 3h 30m |
| 2026-05-18 | PEX32G | - | May 18, 17:45 UTC | May 18, 23:10 UTC | 5h 24m |
| 2026-05-17 | PEX32G | - | May 17, 21:05 UTC | May 18, 19:35 UTC | 22h 29m |
| 2026-05-17 | PEX32G | - | May 17, 19:05 UTC | May 18, 18:10 UTC | 23h 5m |
| 2026-05-17 | PEX32G | - | May 17, 18:01 UTC | May 17, 22:15 UTC | 4h 15m |
| 2026-05-17 | PEX32G | RTM → FAB | May 17, 16:05 UTC | May 17, 17:01 UTC | 55m |
| 2026-05-15 | PEX32G | - | May 15, 07:35 UTC | May 15, 08:25 UTC | 50m |
| 2026-05-14 | PEX32G | - | May 14, 20:15 UTC | May 15, 06:45 UTC | 10h 30m |
| 2026-05-13 | PEX32G | - | May 13, 07:30 UTC | May 13, 09:10 UTC | 1h 40m |
| 2026-05-11 | PEX32G | - | May 11, 07:25 UTC | May 11, 12:35 UTC | 5h 10m |
| 2026-05-11 | PEX32G | RTM → FAB | May 11, 05:10 UTC | May 11, 06:10 UTC | 1h 0m |
| 2026-05-06 | VQBXG | - | May 6, 16:00 UTC | May 6, 18:50 UTC | 2h 49m |
| 2026-05-06 | VQBXG | - | May 6, 11:45 UTC | May 6, 12:10 UTC | 25m |
| 2026-05-05 | VQBXG | - | May 5, 12:00 UTC | May 5, 12:35 UTC | 35m |
| 2026-05-05 | VQBXG | - | May 5, 07:25 UTC | May 5, 10:20 UTC | 2h 55m |
| 2026-05-05 | VQBXG | RTM → LTN | May 5, 05:05 UTC | May 5, 06:05 UTC | 1h 0m |
| 2026-04-29 | PEX32G | LCY → RTM | Apr 29, 17:50 UTC | Apr 29, 18:30 UTC | 40m |
| 2026-04-29 | PEX32G | RTM → LCY | Apr 29, 05:35 UTC | Apr 29, 06:15 UTC | 40m |
| 2026-04-22 | PEX32G | - | Apr 22, 13:55 UTC | Apr 22, 14:35 UTC | 40m |
| 2026-04-22 | PEX32G | - | Apr 22, 04:15 UTC | Apr 22, 12:40 UTC | 8h 25m |
| 2026-04-19 | PEX32G | - | Apr 19, 21:05 UTC | Apr 20, 15:45 UTC | 18h 40m |
| 2026-04-19 | PEX32G | - | Apr 19, 19:35 UTC | Apr 20, 15:45 UTC | 20h 10m |
| 2026-04-19 | PEX32G | RTM → LTN | Apr 19, 17:30 UTC | Apr 19, 18:20 UTC | 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 VQ-BXG page for operator, model, and routing details .