sensors Mode-S transponder
4074E2
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-ZBJJ · BOEING 787-8 Dreamliner
- Hex
- 4074E2
- Octal
- 20072342
- Decimal
- 4,224,226
- Country
- GB
- Tail
- G-ZBJJ
- Type
- B788
- Flights observed
- 112
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 4074E2 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 |
|---|---|---|---|
| BAW276 | British Airways | 21 | 2026-05-27 |
| BAW9EW | British Airways | 10 | 2026-05-12 |
| BAW6NC | British Airways | 10 | 2026-05-11 |
| BAW36 | British Airways | 8 | 2026-05-24 |
| BAW277 | British Airways | 7 | 2026-04-16 |
| BAW137 | British Airways | 7 | 2026-05-16 |
| BAW187 | British Airways | 5 | 2026-05-07 |
| BAW186 | British Airways | 5 | 2026-05-08 |
| BAW136 | British Airways | 5 | 2026-05-17 |
| BAW70Q | British Airways | 4 | 2026-05-21 |
| BAW257 | British Airways | 4 | 2026-05-29 |
| BAW171 | British Airways | 4 | 2026-05-20 |
| BAW71K | British Airways | 3 | 2026-05-09 |
| BAW26V | British Airways | 3 | 2026-05-10 |
| BAW256 | British Airways | 3 | 2026-05-29 |
| BAW138 | British Airways | 3 | 2026-05-26 |
| BAW35 | British Airways | 2 | 2026-05-23 |
| BAW139 | British Airways | 2 | 2026-05-26 |
| BAW9ZY | British Airways | 1 | 2026-05-21 |
| BAW99 | British Airways | 1 | 2026-05-08 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | BAW257 | LHR → DEL | May 29, 19:55 UTC | May 30, 00:20 UTC | 4h 25m |
| 2026-05-29 | BAW256 | DEL → LHR | May 29, 04:40 UTC | May 29, 13:50 UTC | 9h 10m |
| 2026-05-28 | BAW257 | LHR → DEL | May 28, 18:30 UTC | May 29, 02:15 UTC | 7h 45m |
| 2026-05-27 | BAW276 | HYD → LHR | May 27, 18:55 UTC | May 28, 13:20 UTC | 18h 25m |
| 2026-05-27 | BAW276 | HYD → LHR | May 27, 16:35 UTC | May 28, 13:20 UTC | 20h 45m |
| 2026-05-27 | BAW276 | HYD → LHR | May 27, 15:00 UTC | May 28, 13:20 UTC | 22h 20m |
| 2026-05-26 | BAW138 | BOM → LHR | May 26, 20:24 UTC | May 27, 05:55 UTC | 9h 30m |
| 2026-05-26 | BAW139 | LHR → BOM | May 26, 09:09 UTC | May 26, 17:50 UTC | 8h 40m |
| 2026-05-25 | BAW276 | HYD → LHR | May 25, 03:45 UTC | May 25, 12:35 UTC | 8h 50m |
| 2026-05-24 | BAW276 | HYD → LHR | May 24, 16:35 UTC | May 25, 12:35 UTC | 20h 0m |
| 2026-05-24 | BAW276 | HYD → LHR | May 24, 15:10 UTC | May 25, 12:35 UTC | 21h 25m |
| 2026-05-24 | BAW36 | MAA → LHR | May 24, 00:25 UTC | May 24, 10:55 UTC | 10h 30m |
| 2026-05-23 | BAW35 | LHR → MAA | May 23, 12:15 UTC | May 23, 20:05 UTC | 7h 50m |
| 2026-05-23 | BAW138 | BOM → LHR | May 23, 01:15 UTC | May 23, 06:05 UTC | 4h 49m |
| 2026-05-22 | BAW138 | BOM → LHR | May 22, 20:30 UTC | May 22, 20:55 UTC | 25m |
| 2026-05-22 | BAW139 | LHR → BOM | May 22, 09:20 UTC | May 22, 18:20 UTC | 9h 0m |
| 2026-05-21 | BAW5CA | YYZ → LHR | May 21, 22:40 UTC | May 22, 05:05 UTC | 6h 25m |
| 2026-05-21 | BAW9ZY | LHR → YYZ | May 21, 12:45 UTC | May 21, 19:50 UTC | 7h 5m |
| 2026-05-21 | BAW70Q | PIT → LHR | May 21, 02:30 UTC | May 21, 09:10 UTC | 6h 40m |
| 2026-05-20 | BAW171 | LHR → PIT | May 20, 16:35 UTC | May 21, 00:15 UTC | 7h 40m |
| 2026-05-19 | BAW276 | HYD → LHR | May 19, 16:35 UTC | May 20, 12:20 UTC | 19h 46m |
| 2026-05-19 | BAW276 | HYD → LHR | May 19, 15:35 UTC | May 20, 12:20 UTC | 20h 46m |
| 2026-05-18 | BAW70Q | PIT → LHR | May 18, 01:55 UTC | May 18, 08:55 UTC | 7h 0m |
| 2026-05-17 | BAW171 | LHR → PIT | May 17, 16:15 UTC | May 17, 23:35 UTC | 7h 20m |
| 2026-05-17 | BAW136 | LHR → BOM | May 17, 03:50 UTC | May 17, 12:25 UTC | 8h 35m |
| 2026-05-16 | BAW137 | ROB → FNA | May 16, 17:50 UTC | May 17, 01:40 UTC | 7h 50m |
| 2026-05-14 | BAW276 | HYD → LHR | May 14, 16:35 UTC | May 15, 12:10 UTC | 19h 35m |
| 2026-05-14 | BAW276 | HYD → LHR | May 14, 15:35 UTC | May 15, 12:10 UTC | 20h 35m |
| 2026-05-13 | BAW36 | MAA → LHR | May 13, 16:35 UTC | May 14, 10:45 UTC | 18h 10m |
| 2026-05-13 | BAW36 | MAA → LHR | May 13, 14:35 UTC | May 14, 10:45 UTC | 20h 10m |
| 2026-05-13 | BAW36 | MAA → LHR | May 13, 12:35 UTC | May 14, 10:45 UTC | 22h 10m |
| 2026-05-12 | BAW9EW | YUL → LHR | May 12, 03:55 UTC | May 12, 09:50 UTC | 5h 55m |
| 2026-05-11 | BAW6NC | LHR → YUL | May 11, 17:50 UTC | May 11, 19:00 UTC | 1h 10m |
| 2026-05-11 | BAW256 | DEL → LHR | May 11, 05:00 UTC | May 11, 14:10 UTC | 9h 10m |
| 2026-05-10 | BAW257 | LHR → DEL | May 10, 18:20 UTC | May 11, 01:55 UTC | 7h 35m |
| 2026-05-10 | BAW26V | PDX → LHR | May 10, 02:34 UTC | May 10, 11:40 UTC | 9h 5m |
| 2026-05-09 | BAW71K | LHR → PDX | May 9, 15:15 UTC | May 10, 00:45 UTC | 9h 30m |
| 2026-05-09 | BAW98T | YYZ → LHR | May 9, 02:20 UTC | May 9, 09:00 UTC | 6h 40m |
| 2026-05-08 | BAW99 | LHR → YYZ | May 8, 17:05 UTC | May 9, 00:05 UTC | 7h 0m |
| 2026-05-08 | BAW186 | LHR → EWR | May 8, 03:49 UTC | May 8, 12:25 UTC | 8h 35m |
| 2026-05-07 | BAW187 | LHR → EWR | May 7, 15:40 UTC | May 8, 01:24 UTC | 9h 45m |
| 2026-05-07 | BAW26V | PDX → LHR | May 7, 02:55 UTC | May 7, 11:55 UTC | 9h 0m |
| 2026-05-06 | BAW71K | LHR → PDX | May 6, 15:20 UTC | May 7, 00:45 UTC | 9h 24m |
| 2026-05-05 | BAW256 | DEL → LHR | May 5, 05:50 UTC | May 5, 14:50 UTC | 9h 0m |
| 2026-05-04 | BAW257 | LHR → DEL | May 4, 18:25 UTC | May 5, 02:10 UTC | 7h 46m |
| 2026-05-04 | BAW186 | LHR → EWR | May 4, 03:49 UTC | May 4, 12:45 UTC | 8h 55m |
| 2026-05-03 | BAW187 | LHR → EWR | May 3, 15:30 UTC | May 4, 01:05 UTC | 9h 35m |
| 2026-05-03 | BAW136 | LHR → BOM | May 3, 03:10 UTC | May 3, 11:55 UTC | 8h 44m |
| 2026-05-02 | BAW137 | ROB → FNA | May 2, 16:20 UTC | May 3, 00:15 UTC | 7h 55m |
| 2026-05-02 | BAW26V | PDX → LHR | May 2, 03:25 UTC | May 2, 12:20 UTC | 8h 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-ZBJJ page for operator, model, and routing details .