sensors Mode-S transponder
4246B3
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to VP-BAU · BOEING 777-200LR
- Hex
- 4246B3
- Octal
- 20443263
- Decimal
- 4,343,475
- Country
- GB
- Tail
- VP-BAU
- Type
- B77L
- Flights observed
- 226
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 4246B3 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 |
|---|---|---|---|
| AZG6117 | - | 9 | 2026-07-13 |
| AZG1581 | - | 8 | 2026-07-03 |
| AZG4881 | - | 6 | 2026-06-15 |
| AZG9934 | Sakaviaservice | 5 | 2026-05-27 |
| AZG9933 | Sakaviaservice | 5 | 2026-06-04 |
| AZG8892 | - | 5 | 2026-05-15 |
| AZG784 | - | 5 | 2026-06-25 |
| AZG3319 | - | 5 | 2026-07-02 |
| AZG9790 | - | 4 | 2026-06-16 |
| AZG783 | Sakaviaservice | 4 | 2026-04-19 |
| AZG624 | - | 4 | 2026-06-21 |
| AZG6118 | Sakaviaservice | 4 | 2026-05-28 |
| AZG4862 | - | 4 | 2026-07-11 |
| AZG281 | - | 4 | 2026-07-09 |
| AZG238 | Sakaviaservice | 4 | 2026-06-05 |
| AZG237 | Sakaviaservice | 4 | 2026-06-05 |
| AZG1401 | - | 4 | 2026-07-09 |
| AZG134 | - | 4 | 2026-05-14 |
| AZG9791 | Sakaviaservice | 3 | 2026-06-07 |
| AZG903 | - | 3 | 2026-04-13 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | AZG3231 | - | Jul 14, 16:20 UTC | Jul 14, 16:45 UTC | 25m |
| 2026-07-14 | AZG278 | - | Jul 14, 07:05 UTC | Jul 14, 10:30 UTC | 3h 25m |
| 2026-07-14 | AZG277 | - | Jul 14, 03:35 UTC | Jul 14, 04:55 UTC | 1h 20m |
| 2026-07-13 | AZG6117 | - | Jul 13, 06:50 UTC | Jul 14, 01:15 UTC | 18h 25m |
| 2026-07-13 | AZG6117 | - | Jul 13, 04:50 UTC | Jul 14, 01:15 UTC | 20h 25m |
| 2026-07-13 | AZG6117 | - | Jul 13, 02:50 UTC | Jul 14, 01:15 UTC | 22h 25m |
| 2026-07-13 | AZG6117 | - | Jul 13, 00:50 UTC | Jul 14, 00:45 UTC | 23h 55m |
| 2026-07-13 | AZG2891 | - | Jul 13, 00:35 UTC | Jul 13, 22:45 UTC | 22h 10m |
| 2026-07-12 | AZG1332 | - | Jul 12, 14:15 UTC | Jul 12, 21:30 UTC | 7h 15m |
| 2026-07-12 | AZG217 | - | Jul 12, 08:50 UTC | Jul 12, 10:50 UTC | 2h 0m |
| 2026-07-12 | AZG216 | - | Jul 12, 03:10 UTC | Jul 12, 05:35 UTC | 2h 25m |
| 2026-07-11 | AZG4862 | - | Jul 11, 10:50 UTC | Jul 11, 14:25 UTC | 3h 35m |
| 2026-07-10 | AZG4862 | - | Jul 10, 22:25 UTC | Jul 11, 06:50 UTC | 8h 25m |
| 2026-07-10 | AZG8587 | - | Jul 10, 08:50 UTC | Jul 10, 18:00 UTC | 9h 10m |
| 2026-07-10 | AZG8587 | - | Jul 10, 01:30 UTC | Jul 10, 06:05 UTC | 4h 35m |
| 2026-07-09 | AZG1402 | - | Jul 9, 19:15 UTC | Jul 9, 21:00 UTC | 1h 45m |
| 2026-07-09 | AZG1401 | - | Jul 9, 16:35 UTC | Jul 9, 17:05 UTC | 30m |
| 2026-07-09 | AZG1401 | - | Jul 9, 14:50 UTC | Jul 9, 16:05 UTC | 1h 15m |
| 2026-07-09 | AZG281 | - | Jul 9, 07:50 UTC | Jul 9, 10:40 UTC | 2h 50m |
| 2026-07-08 | AZG324 | GYD → RUH | Jul 8, 14:50 UTC | Jul 9, 04:15 UTC | 13h 25m |
| 2026-07-08 | AZG323 | GYD → STN | Jul 8, 07:10 UTC | Jul 8, 12:20 UTC | 5h 10m |
| 2026-07-07 | AZG3232 | - | Jul 7, 22:40 UTC | Jul 8, 02:15 UTC | 3h 35m |
| 2026-07-07 | AZG3231 | - | Jul 7, 05:55 UTC | Jul 7, 20:00 UTC | 14h 5m |
| 2026-07-07 | AZG692 | - | Jul 7, 03:40 UTC | Jul 7, 03:55 UTC | 15m |
| 2026-07-06 | AZG691 | NKW → HKG | Jul 6, 15:35 UTC | Jul 6, 23:50 UTC | 8h 15m |
| 2026-07-06 | AZG4882 | - | Jul 6, 07:20 UTC | Jul 6, 11:10 UTC | 3h 50m |
| 2026-07-05 | AZG4882 | - | Jul 5, 20:10 UTC | Jul 6, 04:25 UTC | 8h 15m |
| 2026-07-05 | AZG8587 | - | Jul 5, 04:20 UTC | Jul 5, 17:40 UTC | 13h 20m |
| 2026-07-04 | AZG3236 | - | Jul 4, 20:30 UTC | Jul 5, 00:10 UTC | 3h 40m |
| 2026-07-04 | AZG3235 | - | Jul 4, 01:50 UTC | Jul 4, 16:35 UTC | 14h 45m |
| 2026-07-03 | AZG1581 | - | Jul 3, 15:40 UTC | Jul 3, 19:40 UTC | 4h 0m |
| 2026-07-03 | AZG1402 | - | Jul 3, 03:25 UTC | Jul 3, 05:10 UTC | 1h 45m |
| 2026-07-03 | AZG1401 | - | Jul 3, 00:05 UTC | Jul 3, 00:25 UTC | 20m |
| 2026-07-02 | AZG1401 | - | Jul 2, 13:30 UTC | Jul 2, 23:30 UTC | 10h 0m |
| 2026-07-02 | AZG3319 | - | Jul 2, 10:15 UTC | Jul 2, 10:35 UTC | 20m |
| 2026-07-02 | AZG3319 | - | Jul 2, 09:10 UTC | Jul 2, 09:25 UTC | 15m |
| 2026-07-01 | AZG219 | - | Jul 1, 21:50 UTC | Jul 1, 23:55 UTC | 2h 5m |
| 2026-07-01 | AZG218 | DAC → TLV | Jul 1, 05:35 UTC | Jul 1, 17:55 UTC | 12h 20m |
| 2026-06-30 | AZG281 | VIE → JFK | Jun 30, 16:25 UTC | Jul 1, 03:10 UTC | 10h 45m |
| 2026-06-30 | AZG280 | GYD → VIE | Jun 30, 12:30 UTC | Jun 30, 13:20 UTC | 50m |
| 2026-06-29 | AZG714 | - | Jun 29, 22:19 UTC | Jun 30, 09:55 UTC | 11h 36m |
| 2026-06-29 | AZG713 | BHX → GYD | Jun 29, 05:09 UTC | Jun 29, 17:40 UTC | 12h 30m |
| 2026-06-29 | AZG621 | HKG → HKG | Jun 29, 02:59 UTC | Jun 29, 03:14 UTC | 15m |
| 2026-06-28 | AZG620 | FRU → FRU | Jun 28, 20:29 UTC | Jun 28, 20:54 UTC | 25m |
| 2026-06-28 | AZG1404 | - | Jun 28, 05:40 UTC | Jun 28, 07:29 UTC | 1h 50m |
| 2026-06-27 | AZG1582 | - | Jun 27, 13:49 UTC | Jun 28, 02:44 UTC | 12h 55m |
| 2026-06-27 | AZG1581 | - | Jun 27, 06:50 UTC | Jun 27, 11:09 UTC | 4h 20m |
| 2026-06-26 | AZG9602 | - | Jun 26, 15:49 UTC | Jun 26, 20:04 UTC | 4h 15m |
| 2026-06-26 | AZG9601 | JFK → OSL | Jun 26, 11:20 UTC | Jun 26, 12:59 UTC | 1h 40m |
| 2026-06-25 | AZG784 | - | Jun 25, 12:50 UTC | Jun 26, 08:15 UTC | 19h 25m |
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 VP-BAU page for operator, model, and routing details .