sensors Mode-S transponder
406B20
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-XLEG · AIRBUS A-380-800
- Hex
- 406B20
- Octal
- 20065440
- Decimal
- 4,221,728
- Country
- GB
- Tail
- G-XLEG
- Type
- A388
- Flights observed
- 70
- Distinct callsigns
- 14
- Country
- GB
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 406B20 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BAW5L | British Airways | 10 | 2026-05-28 |
| BAW212 | British Airways | 9 | 2026-05-22 |
| BAW5E | British Airways | 7 | 2026-05-05 |
| BAW34N | British Airways | 7 | 2026-05-06 |
| BAW2X | British Airways | 7 | 2026-05-28 |
| BAW213 | British Airways | 7 | 2026-05-21 |
| BAW57K | British Airways | 4 | 2026-05-26 |
| BAW55G | British Airways | 4 | 2026-05-29 |
| BAW54 | British Airways | 4 | 2026-05-27 |
| BAW7D | British Airways | 3 | 2026-05-25 |
| BAW56 | British Airways | 3 | 2026-05-17 |
| BAW4E | British Airways | 3 | 2026-05-26 |
| BAW6R | British Airways | 1 | 2026-05-14 |
| BAW3G | British Airways | 1 | 2026-05-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | BAW55G | LHR → JNB | May 29, 18:35 UTC | May 30, 04:40 UTC | 10h 5m |
| 2026-05-28 | BAW2X | SFO → LHR | May 28, 23:55 UTC | May 29, 10:00 UTC | 10h 5m |
| 2026-05-28 | BAW5L | LHR → SFO | May 28, 10:25 UTC | May 28, 20:35 UTC | 10h 10m |
| 2026-05-27 | BAW54 | JNB → LHR | May 27, 19:40 UTC | May 28, 06:15 UTC | 10h 35m |
| 2026-05-26 | BAW57K | LHR → JNB | May 26, 21:00 UTC | May 27, 07:15 UTC | 10h 16m |
| 2026-05-26 | BAW4E | LAX → LHR | May 26, 04:54 UTC | May 26, 14:35 UTC | 9h 40m |
| 2026-05-25 | BAW7D | EWR → LHR | May 25, 15:35 UTC | May 26, 02:10 UTC | 10h 35m |
| 2026-05-24 | BAW4E | LAX → LHR | May 24, 04:25 UTC | May 24, 14:25 UTC | 10h 0m |
| 2026-05-23 | BAW7D | EWR → LHR | May 23, 15:15 UTC | May 24, 01:40 UTC | 10h 26m |
| 2026-05-22 | BAW2X | SFO → LHR | May 22, 23:55 UTC | May 23, 09:40 UTC | 9h 44m |
| 2026-05-22 | BAW5L | LHR → SFO | May 22, 10:20 UTC | May 22, 20:25 UTC | 10h 5m |
| 2026-05-22 | BAW212 | BOS → LHR | May 22, 00:30 UTC | May 22, 06:15 UTC | 5h 45m |
| 2026-05-21 | BAW213 | LHR → BOS | May 21, 14:10 UTC | May 21, 20:45 UTC | 6h 35m |
| 2026-05-21 | BAW2X | SFO → LHR | May 21, 00:20 UTC | May 21, 10:00 UTC | 9h 40m |
| 2026-05-20 | BAW5L | LHR → SFO | May 20, 10:20 UTC | May 20, 20:35 UTC | 10h 15m |
| 2026-05-19 | BAW54 | JNB → LHR | May 19, 19:30 UTC | May 20, 06:15 UTC | 10h 46m |
| 2026-05-18 | BAW55G | LHR → JNB | May 18, 18:45 UTC | May 19, 04:45 UTC | 10h 0m |
| 2026-05-17 | BAW56 | JNB → LHR | May 17, 23:40 UTC | May 18, 10:15 UTC | 10h 35m |
| 2026-05-16 | BAW55G | LHR → JNB | May 16, 19:55 UTC | May 17, 06:20 UTC | 10h 25m |
| 2026-05-16 | BAW2X | SFO → LHR | May 16, 00:10 UTC | May 16, 09:35 UTC | 9h 26m |
| 2026-05-15 | BAW5L | LHR → SFO | May 15, 10:25 UTC | May 15, 20:45 UTC | 10h 19m |
| 2026-05-14 | BAW6R | MIA → LHR | May 14, 23:30 UTC | May 15, 06:55 UTC | 7h 25m |
| 2026-05-14 | BAW3G | LHR → BOS | May 14, 11:35 UTC | May 14, 20:45 UTC | 9h 10m |
| 2026-05-08 | BAW56 | JNB → LHR | May 8, 17:50 UTC | May 9, 04:40 UTC | 10h 50m |
| 2026-05-07 | BAW57K | LHR → JNB | May 7, 21:05 UTC | May 8, 07:20 UTC | 10h 15m |
| 2026-05-06 | BAW34N | MIA → LHR | May 6, 05:25 UTC | May 6, 13:10 UTC | 7h 45m |
| 2026-05-05 | BAW5E | LHR → MIA | May 5, 18:10 UTC | May 6, 02:40 UTC | 8h 30m |
| 2026-04-30 | BAW56 | JNB → LHR | Apr 30, 17:50 UTC | May 1, 04:20 UTC | 10h 30m |
| 2026-04-29 | BAW57K | LHR → JNB | Apr 29, 20:45 UTC | Apr 30, 07:25 UTC | 10h 39m |
| 2026-04-28 | BAW4E | LAX → LHR | Apr 28, 04:10 UTC | Apr 28, 14:10 UTC | 10h 0m |
| 2026-04-27 | BAW7D | EWR → LHR | Apr 27, 14:35 UTC | Apr 28, 01:05 UTC | 10h 30m |
| 2026-04-24 | BAW212 | BOS → LHR | Apr 24, 23:45 UTC | Apr 25, 05:55 UTC | 6h 10m |
| 2026-04-24 | BAW213 | LHR → BOS | Apr 24, 14:10 UTC | Apr 24, 20:15 UTC | 6h 5m |
| 2026-04-23 | BAW54 | JNB → LHR | Apr 23, 19:40 UTC | Apr 24, 06:30 UTC | 10h 50m |
| 2026-04-22 | BAW55G | LHR → JNB | Apr 22, 18:45 UTC | Apr 23, 04:40 UTC | 9h 55m |
| 2026-04-21 | BAW212 | BOS → LHR | Apr 21, 23:45 UTC | Apr 22, 05:55 UTC | 6h 10m |
| 2026-04-21 | BAW213 | LHR → BOS | Apr 21, 13:45 UTC | Apr 21, 20:25 UTC | 6h 40m |
| 2026-04-21 | BAW2X | SFO → LHR | Apr 21, 00:25 UTC | Apr 21, 10:15 UTC | 9h 50m |
| 2026-04-20 | BAW5L | LHR → SFO | Apr 20, 10:15 UTC | Apr 20, 20:50 UTC | 10h 35m |
| 2026-04-19 | BAW54 | JNB → LHR | Apr 19, 19:35 UTC | Apr 20, 06:15 UTC | 10h 40m |
| 2026-04-18 | BAW57K | LHR → JNB | Apr 18, 20:40 UTC | Apr 19, 07:00 UTC | 10h 20m |
| 2026-04-18 | BAW34N | MIA → LHR | Apr 18, 03:25 UTC | Apr 18, 03:40 UTC | 15m |
| 2026-04-18 | BAW34N | MIA → LHR | Apr 18, 03:05 UTC | Apr 18, 10:50 UTC | 7h 45m |
| 2026-04-17 | BAW5E | LHR → MIA | Apr 17, 23:35 UTC | Apr 18, 00:15 UTC | 40m |
| 2026-04-17 | BAW5E | LHR → MIA | Apr 17, 15:20 UTC | Apr 17, 16:25 UTC | 1h 5m |
| 2026-04-17 | BAW34N | MIA → LHR | Apr 17, 10:15 UTC | Apr 17, 11:15 UTC | 1h 0m |
| 2026-04-17 | BAW34N | MIA → LHR | Apr 17, 03:25 UTC | Apr 17, 04:10 UTC | 45m |
| 2026-04-16 | BAW5E | LHR → MIA | Apr 16, 23:40 UTC | Apr 17, 00:25 UTC | 45m |
| 2026-04-16 | BAW5E | LHR → MIA | Apr 16, 15:40 UTC | Apr 16, 16:50 UTC | 1h 10m |
| 2026-04-16 | BAW34N | MIA → LHR | Apr 16, 10:05 UTC | Apr 16, 11:04 UTC | 1h 0m |
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-XLEG page for operator, model, and routing details .