sensors Mode-S transponder
400775
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-VIIX · BOEING 777-200
- Hex
- 400775
- Octal
- 20003565
- Decimal
- 4,196,213
- Country
- GB
- Tail
- G-VIIX
- Type
- B772
- Flights observed
- 127
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 400775 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BAW43C | British Airways | 16 | 2026-06-04 |
| BAW63H | British Airways | 12 | 2026-06-04 |
| BAW12TB | British Airways | 10 | 2026-06-06 |
| BAW12J | British Airways | 10 | 2026-06-06 |
| BAW5KW | British Airways | 9 | 2026-06-08 |
| BAW9VA | British Airways | 7 | 2026-06-07 |
| BAW2158 | British Airways | 6 | 2026-05-20 |
| BAW17PA | British Airways | 6 | 2026-05-31 |
| BAW39D | British Airways | 5 | 2026-06-08 |
| BAW38W | British Airways | 5 | 2026-06-09 |
| BAW22G | British Airways | 5 | 2026-06-03 |
| BAW2238 | British Airways | 4 | 2026-05-18 |
| BAW2204 | British Airways | 4 | 2026-05-09 |
| BAW2159 | British Airways | 3 | 2026-04-28 |
| BAW2067 | British Airways | 3 | 2026-06-09 |
| BAW86 | - | 2 | 2026-07-03 |
| BAW264 | - | 2 | 2026-07-10 |
| BAW2279 | British Airways | 2 | 2026-06-05 |
| BAW2278 | British Airways | 2 | 2026-06-05 |
| BAW2239 | British Airways | 2 | 2026-05-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-10 | BAW264 | - | Jul 10, 10:25 UTC | Jul 10, 10:35 UTC | 10m |
| 2026-07-03 | BAW86 | - | Jul 3, 09:40 UTC | Jul 3, 09:55 UTC | 15m |
| 2026-07-02 | - | - | Jul 2, 13:55 UTC | Jul 2, 14:05 UTC | 10m |
| 2026-06-22 | BAW2LJ | - | Jun 22, 09:30 UTC | Jun 22, 09:40 UTC | 10m |
| 2026-06-19 | BAW86 | - | Jun 19, 09:44 UTC | Jun 19, 10:04 UTC | 20m |
| 2026-06-16 | BAW22B | - | Jun 16, 15:50 UTC | Jun 16, 16:00 UTC | 10m |
| 2026-06-10 | BAW9176 | HND → LHR | Jun 10, 10:35 UTC | Jun 10, 11:10 UTC | 35m |
| 2026-06-09 | BAW2067 | LGW → ACC | Jun 9, 12:15 UTC | Jun 10, 03:25 UTC | 15h 10m |
| 2026-06-09 | BAW38W | MCO → LGW | Jun 9, 00:50 UTC | Jun 9, 08:45 UTC | 7h 55m |
| 2026-06-08 | BAW39D | LGW → MCO | Jun 8, 13:20 UTC | Jun 8, 22:00 UTC | 8h 40m |
| 2026-06-08 | BAW5KW | UVF → LGW | Jun 8, 06:50 UTC | Jun 8, 08:05 UTC | 1h 15m |
| 2026-06-07 | BAW5KW | UVF → LGW | Jun 7, 11:20 UTC | Jun 8, 08:05 UTC | 20h 45m |
| 2026-06-07 | BAW9VA | LGW → UVF | Jun 7, 10:30 UTC | Jun 8, 08:05 UTC | 21h 35m |
| 2026-06-06 | BAW12TB | TPA → LGW | Jun 6, 23:05 UTC | Jun 7, 07:05 UTC | 8h 0m |
| 2026-06-06 | BAW12J | LGW → TPA | Jun 6, 11:35 UTC | Jun 6, 20:25 UTC | 8h 50m |
| 2026-06-06 | BAW264 | IAD → LHR | Jun 6, 09:55 UTC | Jun 6, 10:04 UTC | 10m |
| 2026-06-05 | BAW2278 | YVR → LGW | Jun 5, 22:50 UTC | Jun 6, 07:40 UTC | 8h 50m |
| 2026-06-05 | BAW2279 | LGW → YVR | Jun 5, 10:55 UTC | Jun 5, 20:05 UTC | 9h 10m |
| 2026-06-04 | BAW63H | MCO → LGW | Jun 4, 22:10 UTC | Jun 5, 05:35 UTC | 7h 25m |
| 2026-06-04 | BAW43C | LGW → MCO | Jun 4, 10:20 UTC | Jun 4, 19:05 UTC | 8h 45m |
| 2026-06-03 | BAW22G | LGW → PUJ | Jun 3, 11:20 UTC | Jun 4, 05:35 UTC | 18h 15m |
| 2026-06-03 | BAW22G | LGW → PUJ | Jun 3, 11:10 UTC | Jun 4, 05:35 UTC | 18h 25m |
| 2026-06-02 | BAW12TB | TPA → LGW | Jun 2, 23:15 UTC | Jun 3, 06:40 UTC | 7h 25m |
| 2026-06-02 | BAW12J | LGW → TPA | Jun 2, 11:35 UTC | Jun 2, 20:20 UTC | 8h 45m |
| 2026-06-01 | BAW2278 | YVR → LGW | Jun 1, 22:45 UTC | Jun 2, 07:15 UTC | 8h 30m |
| 2026-06-01 | BAW2279 | LGW → YVR | Jun 1, 11:05 UTC | Jun 1, 20:05 UTC | 9h 0m |
| 2026-05-31 | BAW2156 | ANU → LGW | May 31, 13:40 UTC | Jun 1, 03:45 UTC | 14h 5m |
| 2026-05-31 | BAW17PA | LGW → ANU | May 31, 10:25 UTC | May 31, 11:25 UTC | 1h 0m |
| 2026-05-30 | BAW63H | MCO → LGW | May 30, 22:10 UTC | May 30, 22:45 UTC | 35m |
| 2026-05-30 | BAW43C | LGW → MCO | May 30, 10:05 UTC | May 30, 18:45 UTC | 8h 40m |
| 2026-05-29 | BAW63H | MCO → LGW | May 29, 22:20 UTC | May 30, 05:55 UTC | 7h 35m |
| 2026-05-29 | BAW43C | LGW → MCO | May 29, 10:10 UTC | May 29, 18:55 UTC | 8h 45m |
| 2026-05-28 | BAW17PA | LGW → ANU | May 28, 10:15 UTC | May 29, 04:30 UTC | 18h 15m |
| 2026-05-27 | BAW63H | MCO → LGW | May 27, 22:05 UTC | May 28, 05:50 UTC | 7h 45m |
| 2026-05-27 | BAW43C | LGW → MCO | May 27, 10:50 UTC | May 27, 19:50 UTC | 9h 0m |
| 2026-05-27 | BAW2256 | ANU → LGW | May 27, 05:19 UTC | May 27, 06:40 UTC | 1h 20m |
| 2026-05-26 | BAW17PA | LGW → ANU | May 26, 09:49 UTC | May 27, 06:40 UTC | 20h 50m |
| 2026-05-25 | BAW17PA | LGW → ANU | May 25, 10:35 UTC | May 26, 04:00 UTC | 17h 25m |
| 2026-05-24 | BAW12TB | TPA → LGW | May 24, 23:30 UTC | May 25, 08:00 UTC | 8h 30m |
| 2026-05-24 | BAW12J | LGW → TPA | May 24, 11:55 UTC | May 24, 20:45 UTC | 8h 50m |
| 2026-05-24 | BAW5KW | UVF → LGW | May 24, 06:55 UTC | May 24, 08:20 UTC | 1h 25m |
| 2026-05-23 | BAW5KW | UVF → LGW | May 23, 11:20 UTC | May 24, 08:20 UTC | 21h 0m |
| 2026-05-23 | BAW9VA | LGW → UVF | May 23, 10:35 UTC | May 24, 08:20 UTC | 21h 46m |
| 2026-05-22 | BAW12TB | TPA → LGW | May 22, 23:55 UTC | May 23, 07:50 UTC | 7h 54m |
| 2026-05-22 | BAW12J | LGW → TPA | May 22, 11:50 UTC | May 22, 20:40 UTC | 8h 50m |
| 2026-05-22 | BAW2066 | ACC → LGW | May 22, 01:15 UTC | May 22, 03:35 UTC | 2h 20m |
| 2026-05-21 | BAW2067 | LGW → ACC | May 21, 12:05 UTC | May 21, 14:05 UTC | 2h 0m |
| 2026-05-20 | BAW12TB | TPA → LGW | May 20, 23:05 UTC | May 21, 07:15 UTC | 8h 10m |
| 2026-05-20 | BAW12J | LGW → TPA | May 20, 11:40 UTC | May 20, 20:25 UTC | 8h 45m |
| 2026-05-20 | BAW2158 | GND → UVF | May 20, 07:05 UTC | May 20, 08:00 UTC | 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 G-VIIX page for operator, model, and routing details .