sensors Mode-S transponder
407995
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to G-STBP · BOEING 777-300ER
- Hex
- 407995
- Octal
- 20074625
- Decimal
- 4,225,429
- Country
- GB
- Tail
- G-STBP
- Type
- B77W
- Flights observed
- 170
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- Jul 26, 19:05 UTC
Current position
Country allocation
The ICAO 24-bit address 407995 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 |
|---|---|---|---|
| BAW82P | British Airways | 14 | 2026-07-21 |
| BAW33K | British Airways | 14 | 2026-07-25 |
| BAW29C | British Airways | 14 | 2026-07-23 |
| BAW293 | British Airways | 13 | 2026-07-22 |
| BAW9SW | British Airways | 11 | 2026-07-22 |
| BAW28K | British Airways | 11 | 2026-07-24 |
| BAW14K | British Airways | 11 | 2026-07-26 |
| BAW6B | British Airways | 10 | 2026-07-25 |
| BAW12 | - | 7 | 2026-07-14 |
| BAW11 | - | 6 | 2026-07-13 |
| BAW49 | - | 5 | 2026-06-19 |
| BAW48Q | - | 5 | 2026-06-20 |
| BAW28F | - | 5 | 2026-07-12 |
| BAW21B | - | 5 | 2026-07-11 |
| BAW8DS | British Airways | 4 | 2026-07-20 |
| BAW283 | - | 4 | 2026-07-20 |
| BAW173A | - | 4 | 2026-07-18 |
| BAW40F | - | 3 | 2026-07-19 |
| BAW180 | British Airways | 3 | 2026-06-13 |
| BAW04A | - | 3 | 2026-06-13 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | BAW181 | LHR → EWR | Jul 26, 11:50 UTC | Jul 26, 18:55 UTC | 7h 5m |
| 2026-07-26 | BAW14K | JFK → LHR | Jul 26, 02:05 UTC | Jul 26, 08:15 UTC | 6h 11m |
| 2026-07-25 | BAW33K | LHR → JFK | Jul 25, 16:00 UTC | Jul 25, 22:50 UTC | 6h 50m |
| 2026-07-25 | BAW6B | SFO → LHR | Jul 25, 03:00 UTC | Jul 25, 12:00 UTC | 9h 0m |
| 2026-07-24 | BAW28K | LHR → SFO | Jul 24, 13:50 UTC | Jul 25, 00:35 UTC | 10h 45m |
| 2026-07-24 | BAW196E | IAH → LHR | Jul 24, 02:40 UTC | Jul 24, 11:15 UTC | 8h 35m |
| 2026-07-23 | BAW97A | LHR → IAH | Jul 23, 14:25 UTC | Jul 23, 23:45 UTC | 9h 20m |
| 2026-07-23 | BAW29C | IAD → LHR | Jul 23, 02:45 UTC | Jul 23, 09:15 UTC | 6h 30m |
| 2026-07-22 | BAW293 | LHR → IAD | Jul 22, 16:50 UTC | Jul 23, 00:10 UTC | 7h 20m |
| 2026-07-22 | BAW9SW | SAN → LHR | Jul 22, 03:05 UTC | Jul 22, 13:05 UTC | 10h 0m |
| 2026-07-21 | BAW82P | LHR → SAN | Jul 21, 14:10 UTC | Jul 22, 00:45 UTC | 10h 35m |
| 2026-07-20 | BAW8DS | LAX → LHR | Jul 20, 23:15 UTC | Jul 21, 08:55 UTC | 9h 39m |
| 2026-07-20 | BAW283 | - | Jul 20, 10:10 UTC | Jul 20, 20:35 UTC | 10h 25m |
| 2026-07-19 | BAW40F | JFK → LHR | Jul 19, 04:50 UTC | Jul 19, 11:15 UTC | 6h 25m |
| 2026-07-18 | BAW173A | BOS → JFK | Jul 18, 22:00 UTC | Jul 18, 22:50 UTC | 50m |
| 2026-07-18 | BAW173A | LHR → BOS | Jul 18, 11:35 UTC | Jul 18, 18:50 UTC | 7h 15m |
| 2026-07-17 | BAW29G | BOS → LHR | Jul 17, 11:39 UTC | Jul 17, 17:50 UTC | 6h 10m |
| 2026-07-16 | BAW239 | LHR → BOS | Jul 16, 20:35 UTC | Jul 17, 02:59 UTC | 6h 25m |
| 2026-07-16 | BAW461 | - | Jul 16, 16:09 UTC | Jul 16, 18:10 UTC | 2h 0m |
| 2026-07-16 | BAW46EZ | - | Jul 16, 11:54 UTC | Jul 16, 13:34 UTC | 1h 40m |
| 2026-07-15 | BAW40F | JFK → LHR | Jul 15, 23:50 UTC | Jul 16, 06:05 UTC | 6h 15m |
| 2026-07-15 | BAW173A | - | Jul 15, 11:25 UTC | Jul 15, 18:25 UTC | 7h 0m |
| 2026-07-14 | BAW12 | - | Jul 14, 15:55 UTC | Jul 15, 05:15 UTC | 13h 19m |
| 2026-07-13 | BAW11 | - | Jul 13, 19:10 UTC | Jul 14, 07:25 UTC | 12h 15m |
| 2026-07-13 | BAW9SW | - | Jul 13, 03:10 UTC | Jul 13, 13:10 UTC | 10h 0m |
| 2026-07-12 | BAW82P | - | Jul 12, 13:55 UTC | Jul 13, 00:30 UTC | 10h 35m |
| 2026-07-12 | BAW28F | - | Jul 12, 00:20 UTC | Jul 12, 09:55 UTC | 9h 35m |
| 2026-07-11 | BAW21B | - | Jul 11, 11:10 UTC | Jul 11, 21:40 UTC | 10h 30m |
| 2026-07-11 | BAW12 | - | Jul 11, 01:10 UTC | Jul 11, 05:10 UTC | 4h 0m |
| 2026-07-10 | BAW12 | - | Jul 10, 15:45 UTC | Jul 11, 01:05 UTC | 9h 21m |
| 2026-07-09 | BAW11 | - | Jul 9, 20:55 UTC | Jul 10, 09:35 UTC | 12h 40m |
| 2026-07-08 | BAW290 | IAD → LHR | Jul 8, 23:35 UTC | Jul 9, 06:35 UTC | 7h 0m |
| 2026-07-08 | BAW291 | - | Jul 8, 13:40 UTC | Jul 8, 20:55 UTC | 7h 15m |
| 2026-07-08 | BAW29C | IAD → LHR | Jul 8, 02:45 UTC | Jul 8, 09:45 UTC | 7h 0m |
| 2026-07-07 | BAW293 | - | Jul 7, 16:45 UTC | Jul 7, 23:55 UTC | 7h 10m |
| 2026-07-07 | BAW9SW | - | Jul 7, 03:30 UTC | Jul 7, 13:15 UTC | 9h 45m |
| 2026-07-06 | BAW82P | LHR → SAN | Jul 6, 14:15 UTC | Jul 7, 01:05 UTC | 10h 50m |
| 2026-07-06 | BAW28F | - | Jul 6, 00:25 UTC | Jul 6, 10:05 UTC | 9h 40m |
| 2026-07-05 | BAW21B | - | Jul 5, 11:35 UTC | Jul 5, 22:00 UTC | 10h 25m |
| 2026-07-04 | BAW12 | - | Jul 4, 19:15 UTC | Jul 5, 08:30 UTC | 13h 15m |
| 2026-07-03 | BAW11 | - | Jul 3, 19:15 UTC | Jul 4, 07:40 UTC | 12h 25m |
| 2026-07-03 | BAW29C | IAD → LHR | Jul 3, 03:30 UTC | Jul 3, 10:05 UTC | 6h 35m |
| 2026-07-02 | BAW293 | - | Jul 2, 16:50 UTC | Jul 3, 00:35 UTC | 7h 45m |
| 2026-07-02 | BAW29C | IAD → LHR | Jul 2, 03:40 UTC | Jul 2, 10:10 UTC | 6h 30m |
| 2026-07-01 | BAW293 | - | Jul 1, 17:35 UTC | Jul 2, 01:30 UTC | 7h 55m |
| 2026-07-01 | BAW9SW | - | Jul 1, 03:10 UTC | Jul 1, 12:25 UTC | 9h 15m |
| 2026-06-30 | BAW82P | LHR → SAN | Jun 30, 14:10 UTC | Jul 1, 00:30 UTC | 10h 20m |
| 2026-06-29 | BAW9SW | - | Jun 29, 03:05 UTC | Jun 29, 12:34 UTC | 9h 30m |
| 2026-06-28 | BAW82P | LHR → SAN | Jun 28, 14:30 UTC | Jun 29, 00:34 UTC | 10h 5m |
| 2026-06-28 | BAW28F | - | Jun 28, 01:04 UTC | Jun 28, 11:09 UTC | 10h 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-STBP page for operator, model, and routing details .