sensors Mode-S transponder
406D1A
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-XLEJ · AIRBUS A-380-800
- Hex
- 406D1A
- Octal
- 20066432
- Decimal
- 4,222,234
- Country
- GB
- Tail
- G-XLEJ
- Type
- A388
- Flights observed
- 87
- Distinct callsigns
- 18
- Country
- GB
- Last broadcast
- Jul 26, 21:10 UTC
Current position
Country allocation
The ICAO 24-bit address 406D1A 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BAW212 | British Airways | 11 | 2026-07-23 |
| BAW54 | British Airways | 10 | 2026-07-25 |
| BAW213 | British Airways | 10 | 2026-07-26 |
| BAW5L | British Airways | 9 | 2026-07-23 |
| BAW55G | British Airways | 9 | 2026-07-24 |
| BAW2X | British Airways | 9 | 2026-07-24 |
| BAW6R | British Airways | 7 | 2026-05-10 |
| BAW3G | British Airways | 6 | 2026-05-10 |
| BAW7D | British Airways | 4 | 2026-05-11 |
| BAW4E | British Airways | 4 | 2026-05-12 |
| BAW9171 | - | 1 | 2026-07-14 |
| BAW9170 | British Airways | 1 | 2026-05-17 |
| BAW8K | - | 1 | 2026-07-18 |
| BAW5E | British Airways | 1 | 2026-05-06 |
| BAW57K | British Airways | 1 | 2026-04-20 |
| BAW56 | British Airways | 1 | 2026-04-21 |
| BAW34N | British Airways | 1 | 2026-05-07 |
| BAW193 | - | 1 | 2026-07-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | BAW213 | LHR → BOS | Jul 26, 13:45 UTC | Jul 26, 20:35 UTC | 6h 50m |
| 2026-07-25 | BAW54 | JNB → LHR | Jul 25, 19:30 UTC | Jul 26, 06:15 UTC | 10h 45m |
| 2026-07-24 | BAW55G | LHR → JNB | Jul 24, 19:40 UTC | Jul 25, 05:45 UTC | 10h 5m |
| 2026-07-24 | BAW2X | SFO → LHR | Jul 24, 00:10 UTC | Jul 24, 09:30 UTC | 9h 20m |
| 2026-07-23 | BAW5L | LHR → SFO | Jul 23, 10:15 UTC | Jul 23, 20:40 UTC | 10h 25m |
| 2026-07-23 | BAW212 | BOS → LHR | Jul 23, 00:35 UTC | Jul 23, 06:25 UTC | 5h 50m |
| 2026-07-22 | BAW213 | LHR → BOS | Jul 22, 14:10 UTC | Jul 22, 21:05 UTC | 6h 55m |
| 2026-07-21 | BAW54 | JNB → LHR | Jul 21, 19:35 UTC | Jul 22, 05:25 UTC | 9h 50m |
| 2026-07-20 | BAW55G | - | Jul 20, 18:25 UTC | Jul 21, 04:50 UTC | 10h 25m |
| 2026-07-20 | BAW2X | SFO → LHR | Jul 20, 00:00 UTC | Jul 20, 09:30 UTC | 9h 30m |
| 2026-07-19 | BAW5L | LHR → SFO | Jul 19, 10:10 UTC | Jul 19, 20:40 UTC | 10h 30m |
| 2026-07-19 | BAW212 | BOS → LHR | Jul 19, 00:30 UTC | Jul 19, 06:25 UTC | 5h 55m |
| 2026-07-18 | BAW213 | - | Jul 18, 13:55 UTC | Jul 18, 20:20 UTC | 6h 25m |
| 2026-07-18 | BAW8K | - | Jul 18, 01:05 UTC | Jul 18, 09:45 UTC | 8h 41m |
| 2026-07-17 | BAW193 | LHR → DFW | Jul 17, 12:50 UTC | Jul 17, 22:25 UTC | 9h 35m |
| 2026-07-16 | BAW54 | - | Jul 16, 19:35 UTC | Jul 17, 06:10 UTC | 10h 35m |
| 2026-07-15 | BAW55G | - | Jul 15, 18:35 UTC | Jul 16, 04:35 UTC | 10h 0m |
| 2026-07-14 | BAW9171 | - | Jul 14, 21:20 UTC | Jul 15, 12:10 UTC | 14h 49m |
| 2026-05-17 | BAW9170 | CWL → LHR | May 17, 07:20 UTC | May 17, 21:35 UTC | 14h 15m |
| 2026-05-12 | BAW4E | LAX → LHR | May 12, 04:15 UTC | May 12, 14:00 UTC | 9h 45m |
| 2026-05-11 | BAW7D | EWR → LHR | May 11, 14:55 UTC | May 11, 22:35 UTC | 7h 40m |
| 2026-05-10 | BAW6R | MIA → LHR | May 10, 21:35 UTC | May 11, 05:40 UTC | 8h 5m |
| 2026-05-10 | BAW3G | LHR → BOS | May 10, 09:35 UTC | May 10, 18:29 UTC | 8h 55m |
| 2026-05-09 | BAW212 | BOS → LHR | May 9, 23:55 UTC | May 10, 06:04 UTC | 6h 10m |
| 2026-05-09 | BAW213 | LHR → BOS | May 9, 13:50 UTC | May 9, 20:30 UTC | 6h 40m |
| 2026-05-08 | BAW54 | JNB → LHR | May 8, 19:30 UTC | May 9, 06:20 UTC | 10h 50m |
| 2026-05-07 | BAW55G | LHR → JNB | May 7, 18:20 UTC | May 8, 04:34 UTC | 10h 15m |
| 2026-05-07 | BAW34N | MIA → LHR | May 7, 03:05 UTC | May 7, 11:15 UTC | 8h 10m |
| 2026-05-06 | BAW5E | LHR → MIA | May 6, 15:15 UTC | May 7, 00:30 UTC | 9h 14m |
| 2026-05-05 | BAW54 | JNB → LHR | May 5, 19:40 UTC | May 6, 06:35 UTC | 10h 55m |
| 2026-05-04 | BAW55G | LHR → JNB | May 4, 18:40 UTC | May 5, 04:50 UTC | 10h 10m |
| 2026-05-03 | BAW6R | MIA → LHR | May 3, 22:20 UTC | May 4, 05:55 UTC | 7h 35m |
| 2026-05-03 | BAW3G | LHR → BOS | May 3, 09:25 UTC | May 3, 18:45 UTC | 9h 20m |
| 2026-05-02 | BAW212 | BOS → LHR | May 2, 23:45 UTC | May 3, 05:50 UTC | 6h 4m |
| 2026-05-02 | BAW213 | LHR → BOS | May 2, 14:10 UTC | May 2, 20:40 UTC | 6h 30m |
| 2026-05-02 | BAW212 | BOS → LHR | May 2, 00:10 UTC | May 2, 06:15 UTC | 6h 5m |
| 2026-05-01 | BAW213 | LHR → BOS | May 1, 15:05 UTC | May 1, 21:30 UTC | 6h 25m |
| 2026-04-30 | BAW54 | JNB → LHR | Apr 30, 19:45 UTC | May 1, 06:15 UTC | 10h 30m |
| 2026-04-29 | BAW55G | LHR → JNB | Apr 29, 18:30 UTC | Apr 30, 04:45 UTC | 10h 14m |
| 2026-04-29 | BAW4E | LAX → LHR | Apr 29, 04:15 UTC | Apr 29, 14:15 UTC | 10h 1m |
| 2026-04-28 | BAW7D | EWR → LHR | Apr 28, 15:00 UTC | Apr 29, 01:35 UTC | 10h 35m |
| 2026-04-28 | BAW212 | BOS → LHR | Apr 28, 00:00 UTC | Apr 28, 06:20 UTC | 6h 20m |
| 2026-04-27 | BAW213 | LHR → BOS | Apr 27, 13:55 UTC | Apr 27, 20:25 UTC | 6h 30m |
| 2026-04-27 | BAW2X | SFO → LHR | Apr 27, 00:10 UTC | Apr 27, 09:55 UTC | 9h 45m |
| 2026-04-26 | BAW5L | LHR → SFO | Apr 26, 10:15 UTC | Apr 26, 20:40 UTC | 10h 25m |
| 2026-04-25 | BAW54 | JNB → LHR | Apr 25, 20:00 UTC | Apr 26, 06:15 UTC | 10h 15m |
| 2026-04-24 | BAW55G | LHR → JNB | Apr 24, 18:25 UTC | Apr 25, 04:40 UTC | 10h 15m |
| 2026-04-24 | BAW4E | LAX → LHR | Apr 24, 04:10 UTC | Apr 24, 14:00 UTC | 9h 50m |
| 2026-04-23 | BAW7D | EWR → LHR | Apr 23, 14:40 UTC | Apr 24, 01:10 UTC | 10h 29m |
| 2026-04-23 | BAW6R | MIA → LHR | Apr 23, 04:25 UTC | Apr 23, 05:30 UTC | 1h 5m |
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-XLEJ page for operator, model, and routing details .