sensors Mode-S transponder
4007ED
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-YMMB · BOEING 777-200
- Hex
- 4007ED
- Octal
- 20003755
- Decimal
- 4,196,333
- Country
- GB
- Tail
- G-YMMB
- Type
- B772
- Flights observed
- 89
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 4007ED 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 |
|---|---|---|---|
| BAW5KW | British Airways | 9 | 2026-05-18 |
| BAW2203 | British Airways | 9 | 2026-05-15 |
| BAW2064 | British Airways | 9 | 2026-05-18 |
| BAW39D | British Airways | 8 | 2026-05-21 |
| BAW38W | British Airways | 7 | 2026-05-22 |
| BAW2065 | British Airways | 7 | 2026-05-16 |
| BAW2202 | British Airways | 6 | 2026-05-16 |
| BAW2158 | British Airways | 5 | 2026-04-26 |
| BAW9VA | British Airways | 3 | 2026-05-04 |
| BAW23K | British Airways | 3 | 2026-05-22 |
| BAW2231 | British Airways | 3 | 2026-05-26 |
| BAW2230 | British Airways | 3 | 2026-05-27 |
| BAW2159 | British Airways | 3 | 2026-05-04 |
| BAW25K | British Airways | 2 | 2026-05-22 |
| BAW2256 | British Airways | 2 | 2026-04-29 |
| BAW12TB | British Airways | 2 | 2026-05-10 |
| BAW12J | British Airways | 2 | 2026-05-10 |
| BAW9179 | British Airways | 1 | 2026-05-29 |
| BAW9178 | British Airways | 1 | 2026-05-28 |
| BAW22G | British Airways | 1 | 2026-04-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | BAW9179 | LGW → LGW | May 29, 18:35 UTC | May 29, 18:55 UTC | 20m |
| 2026-05-28 | BAW9178 | CWL → CWL | May 28, 09:45 UTC | May 28, 10:05 UTC | 20m |
| 2026-05-27 | BAW2230 | BKK → LGW | May 27, 15:55 UTC | May 28, 04:20 UTC | 12h 25m |
| 2026-05-26 | BAW2231 | LGW → BKK | May 26, 21:25 UTC | May 27, 08:15 UTC | 10h 50m |
| 2026-05-25 | BAW2161 | LGW → ISB | May 25, 09:55 UTC | May 26, 03:55 UTC | 17h 59m |
| 2026-05-24 | BAW2230 | BKK → LGW | May 24, 16:00 UTC | May 25, 04:25 UTC | 12h 25m |
| 2026-05-23 | BAW2231 | LGW → BKK | May 23, 22:15 UTC | May 24, 09:10 UTC | 10h 55m |
| 2026-05-22 | BAW25K | KIN → LGW | May 22, 17:20 UTC | May 23, 13:05 UTC | 19h 44m |
| 2026-05-22 | BAW23K | LGW → KIN | May 22, 16:55 UTC | May 23, 13:05 UTC | 20h 10m |
| 2026-05-22 | BAW38W | MCO → LGW | May 22, 01:30 UTC | May 22, 09:20 UTC | 7h 50m |
| 2026-05-21 | BAW39D | LGW → MCO | May 21, 14:05 UTC | May 21, 22:50 UTC | 8h 45m |
| 2026-05-21 | BAW38W | MCO → LGW | May 21, 01:35 UTC | May 21, 09:25 UTC | 7h 50m |
| 2026-05-20 | BAW39D | LGW → MCO | May 20, 13:50 UTC | May 20, 22:40 UTC | 8h 50m |
| 2026-05-20 | BAW38W | MCO → LGW | May 20, 01:45 UTC | May 20, 09:50 UTC | 8h 6m |
| 2026-05-19 | BAW39D | LGW → MCO | May 19, 13:55 UTC | May 19, 22:35 UTC | 8h 40m |
| 2026-05-18 | BAW5KW | UVF → LGW | May 18, 22:00 UTC | May 19, 10:35 UTC | 12h 35m |
| 2026-05-18 | BAW5KW | UVF → LGW | May 18, 11:20 UTC | May 19, 10:35 UTC | 23h 14m |
| 2026-05-18 | BAW2064 | MRU → LGW | May 18, 04:25 UTC | May 18, 07:35 UTC | 3h 10m |
| 2026-05-18 | BAW2064 | MRU → LGW | May 18, 00:50 UTC | May 18, 02:50 UTC | 2h 0m |
| 2026-05-16 | BAW2065 | LGW → MRU | May 16, 21:10 UTC | May 17, 01:10 UTC | 4h 0m |
| 2026-05-16 | BAW2202 | CUN → LGW | May 16, 03:05 UTC | May 16, 11:35 UTC | 8h 31m |
| 2026-05-15 | BAW2203 | LGW → CUN | May 15, 15:00 UTC | May 16, 01:00 UTC | 10h 0m |
| 2026-05-10 | BAW12TB | TPA → LGW | May 10, 23:25 UTC | May 11, 07:35 UTC | 8h 10m |
| 2026-05-10 | BAW12J | LGW → TPA | May 10, 12:05 UTC | May 10, 21:04 UTC | 9h 0m |
| 2026-05-10 | BAW5KW | UVF → LGW | May 10, 05:34 UTC | May 10, 08:35 UTC | 3h 0m |
| 2026-05-09 | BAW5KW | UVF → LGW | May 9, 11:20 UTC | May 10, 08:35 UTC | 21h 15m |
| 2026-05-09 | BAW5KW | UVF → LGW | May 9, 10:40 UTC | May 10, 08:35 UTC | 21h 55m |
| 2026-05-08 | BAW2064 | MRU → LGW | May 8, 23:40 UTC | May 9, 04:40 UTC | 5h 0m |
| 2026-05-07 | BAW2065 | LGW → MRU | May 7, 20:20 UTC | May 8, 00:20 UTC | 4h 0m |
| 2026-05-07 | BAW25K | KIN → LGW | May 7, 08:45 UTC | May 7, 09:45 UTC | 1h 0m |
| 2026-05-06 | BAW23K | LGW → KIN | May 6, 13:20 UTC | May 7, 09:45 UTC | 20h 25m |
| 2026-05-06 | BAW23K | LGW → KIN | May 6, 13:10 UTC | May 7, 09:45 UTC | 20h 35m |
| 2026-05-06 | BAW38W | MCO → LGW | May 6, 01:20 UTC | May 6, 09:05 UTC | 7h 45m |
| 2026-05-05 | BAW39D | LGW → MCO | May 5, 13:40 UTC | May 5, 22:30 UTC | 8h 50m |
| 2026-05-05 | BAW5KW | UVF → LGW | May 5, 08:50 UTC | May 5, 09:50 UTC | 1h 0m |
| 2026-05-04 | BAW2159 | UVF → TAB | May 4, 20:20 UTC | May 5, 00:35 UTC | 4h 15m |
| 2026-05-04 | BAW9VA | LGW → UVF | May 4, 10:45 UTC | May 4, 11:45 UTC | 1h 0m |
| 2026-05-04 | BAW2064 | MRU → LGW | May 4, 00:00 UTC | May 4, 05:05 UTC | 5h 5m |
| 2026-05-02 | BAW2065 | LGW → MRU | May 2, 20:20 UTC | May 3, 00:25 UTC | 4h 5m |
| 2026-05-01 | BAW2230 | BKK → LGW | May 1, 16:10 UTC | May 2, 04:30 UTC | 12h 21m |
| 2026-04-30 | BAW2231 | LGW → BKK | Apr 30, 21:35 UTC | May 1, 08:35 UTC | 11h 0m |
| 2026-04-30 | BAW38W | MCO → LGW | Apr 30, 02:30 UTC | Apr 30, 10:50 UTC | 8h 20m |
| 2026-04-29 | BAW39D | LGW → MCO | Apr 29, 15:30 UTC | Apr 30, 00:05 UTC | 8h 34m |
| 2026-04-29 | BAW2256 | ANU → LGW | Apr 29, 05:05 UTC | Apr 29, 06:39 UTC | 1h 35m |
| 2026-04-28 | BAW2256 | ANU → LGW | Apr 28, 09:30 UTC | Apr 29, 06:39 UTC | 21h 10m |
| 2026-04-27 | BAW2202 | CUN → LGW | Apr 27, 05:20 UTC | Apr 27, 14:20 UTC | 9h 0m |
| 2026-04-26 | BAW2203 | LGW → CUN | Apr 26, 17:45 UTC | Apr 27, 03:25 UTC | 9h 40m |
| 2026-04-26 | BAW2158 | GND → UVF | Apr 26, 09:55 UTC | Apr 26, 10:50 UTC | 55m |
| 2026-04-26 | BAW2158 | GND → UVF | Apr 26, 03:30 UTC | Apr 26, 03:40 UTC | 10m |
| 2026-04-25 | BA2158 | GND → UVF | Apr 25, 23:35 UTC | Apr 25, 23:50 UTC | 15m |
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-YMMB page for operator, model, and routing details .