sensors Mode-S transponder
40688E
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-ZBJA · BOEING 787-8 Dreamliner
- Hex
- 40688E
- Octal
- 20064216
- Decimal
- 4,221,070
- Country
- GB
- Tail
- G-ZBJA
- Type
- B788
- Flights observed
- 77
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 40688E 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 |
|---|---|---|---|
| BAW36 | British Airways | 10 | 2026-05-24 |
| BAW136 | British Airways | 10 | 2026-05-23 |
| BAW276 | British Airways | 7 | 2026-05-26 |
| BAW70Q | British Airways | 5 | 2026-05-30 |
| BAW171 | British Airways | 5 | 2026-05-29 |
| BAW137 | British Airways | 5 | 2026-05-22 |
| BAW138 | British Airways | 4 | 2026-05-01 |
| BAW9EW | British Airways | 3 | 2026-05-24 |
| BAW6NC | British Airways | 3 | 2026-05-23 |
| BAW35 | British Airways | 3 | 2026-05-30 |
| BAW199 | British Airways | 3 | 2026-04-14 |
| BAW139 | British Airways | 3 | 2026-05-01 |
| BAW99 | British Airways | 2 | 2026-05-18 |
| BAW98T | British Airways | 2 | 2026-05-19 |
| BAW186 | British Airways | 2 | 2026-05-11 |
| BAW9ZY | British Airways | 1 | 2026-05-13 |
| BAW5CA | British Airways | 1 | 2026-05-13 |
| BAW277 | British Airways | 1 | 2026-05-25 |
| BAW257 | British Airways | 1 | 2026-05-03 |
| BAW256 | British Airways | 1 | 2026-05-04 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | BAW35 | LHR → MAA | May 30, 12:45 UTC | May 30, 17:05 UTC | 4h 20m |
| 2026-05-30 | BAW70Q | PIT → LHR | May 30, 01:55 UTC | May 30, 09:00 UTC | 7h 5m |
| 2026-05-29 | BAW171 | LHR → PIT | May 29, 16:35 UTC | May 29, 23:30 UTC | 6h 55m |
| 2026-05-28 | BAW70Q | PIT → LHR | May 28, 02:15 UTC | May 28, 09:10 UTC | 6h 55m |
| 2026-05-27 | BAW171 | LHR → PIT | May 27, 16:20 UTC | May 27, 23:55 UTC | 7h 35m |
| 2026-05-26 | BAW276 | HYD → LHR | May 26, 17:35 UTC | May 27, 12:50 UTC | 19h 15m |
| 2026-05-26 | BAW276 | HYD → LHR | May 26, 15:45 UTC | May 27, 12:50 UTC | 21h 6m |
| 2026-05-25 | BAW276 | HYD → LHR | May 25, 17:35 UTC | May 26, 12:24 UTC | 18h 50m |
| 2026-05-25 | BAW276 | HYD → LHR | May 25, 15:35 UTC | May 26, 12:24 UTC | 20h 50m |
| 2026-05-25 | BAW277 | LHR → HYD | May 25, 15:05 UTC | May 26, 12:24 UTC | 21h 19m |
| 2026-05-24 | BAW36 | MAA → LHR | May 24, 15:50 UTC | May 25, 11:00 UTC | 19h 10m |
| 2026-05-24 | BAW36 | MAA → LHR | May 24, 13:35 UTC | May 25, 11:00 UTC | 21h 25m |
| 2026-05-24 | BAW36 | MAA → LHR | May 24, 12:05 UTC | May 25, 11:00 UTC | 22h 55m |
| 2026-05-24 | BAW9EW | YUL → LHR | May 24, 03:05 UTC | May 24, 08:15 UTC | 5h 10m |
| 2026-05-24 | BAW9EW | YUL → LHR | May 24, 02:15 UTC | May 24, 03:00 UTC | 45m |
| 2026-05-23 | BAW6NC | LHR → YUL | May 23, 17:35 UTC | May 23, 23:55 UTC | 6h 21m |
| 2026-05-23 | BAW136 | LHR → BOM | May 23, 03:50 UTC | May 23, 12:45 UTC | 8h 55m |
| 2026-05-22 | BAW137 | ROB → FNA | May 22, 16:10 UTC | May 23, 00:05 UTC | 7h 55m |
| 2026-05-21 | BAW276 | HYD → LHR | May 21, 17:35 UTC | May 22, 12:40 UTC | 19h 5m |
| 2026-05-21 | BAW276 | HYD → LHR | May 21, 15:35 UTC | May 22, 12:40 UTC | 21h 5m |
| 2026-05-21 | BAW276 | HYD → LHR | May 21, 15:10 UTC | May 22, 12:40 UTC | 21h 30m |
| 2026-05-21 | BAW220 | LHR → CHS | May 21, 03:40 UTC | May 21, 10:45 UTC | 7h 5m |
| 2026-05-20 | BAW221 | CHS → LHR | May 20, 16:10 UTC | May 21, 00:40 UTC | 8h 30m |
| 2026-05-19 | BAW36 | MAA → LHR | May 19, 15:40 UTC | May 20, 11:05 UTC | 19h 26m |
| 2026-05-19 | BAW36 | MAA → LHR | May 19, 13:35 UTC | May 20, 11:05 UTC | 21h 31m |
| 2026-05-19 | BAW36 | MAA → LHR | May 19, 12:10 UTC | May 20, 11:05 UTC | 22h 56m |
| 2026-05-19 | BAW98T | YYZ → LHR | May 19, 02:20 UTC | May 19, 08:55 UTC | 6h 35m |
| 2026-05-18 | BAW99 | LHR → YYZ | May 18, 16:55 UTC | May 18, 23:55 UTC | 6h 59m |
| 2026-05-13 | BAW5CA | YYZ → LHR | May 13, 23:55 UTC | May 14, 06:25 UTC | 6h 30m |
| 2026-05-13 | BAW9ZY | LHR → YYZ | May 13, 14:30 UTC | May 13, 21:35 UTC | 7h 5m |
| 2026-05-13 | BAW98T | YYZ → LHR | May 13, 02:25 UTC | May 13, 09:05 UTC | 6h 40m |
| 2026-05-12 | BAW99 | LHR → YYZ | May 12, 16:45 UTC | May 13, 00:00 UTC | 7h 15m |
| 2026-05-11 | BAW70Q | PIT → LHR | May 11, 16:20 UTC | May 12, 08:45 UTC | 16h 26m |
| 2026-05-11 | BAW186 | LHR → EWR | May 11, 12:20 UTC | May 11, 13:35 UTC | 1h 15m |
| 2026-05-11 | BAW186 | LHR → EWR | May 11, 05:10 UTC | May 11, 08:55 UTC | 3h 45m |
| 2026-05-10 | BAW187 | LHR → EWR | May 10, 15:45 UTC | May 11, 01:25 UTC | 9h 40m |
| 2026-05-10 | BAW70Q | PIT → LHR | May 10, 02:00 UTC | May 10, 08:50 UTC | 6h 50m |
| 2026-05-09 | BAW171 | LHR → PIT | May 9, 16:05 UTC | May 9, 23:25 UTC | 7h 20m |
| 2026-05-08 | BAW70Q | PIT → LHR | May 8, 01:59 UTC | May 8, 08:40 UTC | 6h 40m |
| 2026-05-07 | BAW171 | LHR → PIT | May 7, 21:45 UTC | May 7, 23:39 UTC | 1h 55m |
| 2026-05-07 | BAW171 | LHR → PIT | May 7, 16:10 UTC | May 7, 21:40 UTC | 5h 30m |
| 2026-05-06 | BAW36 | MAA → LHR | May 6, 15:50 UTC | May 7, 11:00 UTC | 19h 10m |
| 2026-05-06 | BAW36 | MAA → LHR | May 6, 13:35 UTC | May 7, 11:00 UTC | 21h 25m |
| 2026-05-06 | BAW36 | MAA → LHR | May 6, 12:05 UTC | May 7, 11:00 UTC | 22h 55m |
| 2026-05-05 | BAW9EW | YUL → LHR | May 5, 02:20 UTC | May 5, 08:25 UTC | 6h 5m |
| 2026-05-04 | BAW6NC | LHR → YUL | May 4, 22:50 UTC | May 5, 00:05 UTC | 1h 15m |
| 2026-05-04 | BAW6NC | LHR → YUL | May 4, 17:50 UTC | May 4, 19:05 UTC | 1h 16m |
| 2026-05-04 | BAW256 | DEL → LHR | May 4, 05:25 UTC | May 4, 14:20 UTC | 8h 55m |
| 2026-05-03 | BAW257 | LHR → DEL | May 3, 18:05 UTC | May 4, 02:00 UTC | 7h 55m |
| 2026-05-03 | BAW36 | MAA → LHR | May 3, 03:45 UTC | May 3, 14:15 UTC | 10h 30m |
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-ZBJA page for operator, model, and routing details .