sensors Mode-S transponder
4246B4
ICAO 24-bit transponder address · allocated to United Kingdom
Currently assigned to VP-BAK · AIRBUS A-320neo
- Hex
- 4246B4
- Octal
- 20443264
- Decimal
- 4,343,476
- Country
- GB
- Tail
- VP-BAK
- Type
- A20N
- Flights observed
- 93
- Distinct callsigns
- 20
- Country
- GB
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 4246B4 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 |
|---|---|---|---|
| AHY045 | Azerbaijan Airlines | 22 | 2026-05-25 |
| AHY107 | Azerbaijan Airlines | 18 | 2026-05-24 |
| AHY046 | Azerbaijan Airlines | 16 | 2026-05-26 |
| AHY108 | Azerbaijan Airlines | 11 | 2026-05-24 |
| AHY8105 | Azerbaijan Airlines | 4 | 2026-04-22 |
| AHY8234 | Azerbaijan Airlines | 2 | 2026-05-03 |
| AHY8233 | Azerbaijan Airlines | 2 | 2026-05-03 |
| AHY8225 | Azerbaijan Airlines | 2 | 2026-05-05 |
| AHY109 | Azerbaijan Airlines | 2 | 2026-05-24 |
| AHY077 | - | 2 | 2026-04-17 |
| AHY8238 | Azerbaijan Airlines | 1 | 2026-05-05 |
| AHY8237 | Azerbaijan Airlines | 1 | 2026-05-05 |
| AHY8226 | Azerbaijan Airlines | 1 | 2026-05-05 |
| AHY8224 | - | 1 | 2026-04-13 |
| AHY8223 | Azerbaijan Airlines | 1 | 2026-04-13 |
| AHY146 | Azerbaijan Airlines | 1 | 2026-04-27 |
| AHY078 | Azerbaijan Airlines | 1 | 2026-04-17 |
| AHY075 | Azerbaijan Airlines | 1 | 2026-05-08 |
| AHY071 | Azerbaijan Airlines | 1 | 2026-05-12 |
| AHY034 | Azerbaijan Airlines | 1 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-27 | AHY034 | TIV → GYD | May 27, 11:05 UTC | May 27, 14:10 UTC | 3h 5m |
| 2026-05-26 | AHY033 | GYD → TIV | May 26, 22:35 UTC | May 27, 09:10 UTC | 10h 35m |
| 2026-05-26 | AHY046 | BCN → GYD | May 26, 09:59 UTC | May 26, 20:54 UTC | 10h 55m |
| 2026-05-25 | AHY045 | GYD → BCN | May 25, 13:05 UTC | May 26, 08:04 UTC | 18h 59m |
| 2026-05-25 | AHY045 | GYD → BCN | May 25, 11:15 UTC | May 26, 08:04 UTC | 20h 50m |
| 2026-05-24 | AHY109 | GYD → PRG | May 24, 15:20 UTC | May 25, 09:40 UTC | 18h 20m |
| 2026-05-24 | AHY109 | GYD → PRG | May 24, 13:10 UTC | May 25, 09:40 UTC | 20h 30m |
| 2026-05-24 | AHY108 | LGW → GYD | May 24, 11:20 UTC | May 24, 13:05 UTC | 1h 45m |
| 2026-05-24 | AHY107 | GYD → LGW | May 24, 03:55 UTC | May 24, 09:05 UTC | 5h 10m |
| 2026-05-22 | AHY108 | LGW → GYD | May 22, 11:35 UTC | May 22, 16:15 UTC | 4h 40m |
| 2026-05-21 | AHY107 | GYD → LGW | May 21, 22:15 UTC | May 22, 09:45 UTC | 11h 30m |
| 2026-05-20 | AHY108 | LGW → GYD | May 20, 10:55 UTC | May 20, 15:45 UTC | 4h 50m |
| 2026-05-20 | AHY107 | GYD → LGW | May 20, 06:15 UTC | May 20, 09:05 UTC | 2h 50m |
| 2026-05-19 | AHY107 | GYD → LGW | May 19, 13:30 UTC | May 20, 09:05 UTC | 19h 36m |
| 2026-05-19 | AHY107 | GYD → LGW | May 19, 07:30 UTC | May 20, 07:00 UTC | 23h 31m |
| 2026-05-18 | AHY108 | LGW → GYD | May 18, 15:20 UTC | May 19, 13:35 UTC | 22h 14m |
| 2026-05-18 | AHY108 | LGW → GYD | May 18, 13:05 UTC | May 19, 07:35 UTC | 18h 29m |
| 2026-05-18 | AHY108 | LGW → GYD | May 18, 11:05 UTC | May 19, 07:35 UTC | 20h 29m |
| 2026-05-18 | AHY108 | LGW → GYD | May 18, 10:55 UTC | May 19, 07:35 UTC | 20h 39m |
| 2026-05-17 | AHY107 | GYD → LGW | May 17, 15:05 UTC | May 18, 09:20 UTC | 18h 15m |
| 2026-05-17 | AHY107 | GYD → LGW | May 17, 13:05 UTC | May 18, 09:20 UTC | 20h 15m |
| 2026-05-17 | AHY107 | GYD → LGW | May 17, 11:05 UTC | May 18, 09:20 UTC | 22h 15m |
| 2026-05-17 | AHY045 | GYD → BCN | May 17, 03:50 UTC | May 17, 09:15 UTC | 5h 25m |
| 2026-05-16 | AHY045 | GYD → BCN | May 16, 13:35 UTC | May 17, 09:15 UTC | 19h 40m |
| 2026-05-15 | AHY108 | LGW → GYD | May 15, 15:15 UTC | May 16, 13:41 UTC | 22h 26m |
| 2026-05-15 | AHY108 | LGW → GYD | May 15, 10:50 UTC | May 15, 21:00 UTC | 10h 10m |
| 2026-05-15 | AHY107 | GYD → LGW | May 15, 04:45 UTC | May 15, 09:10 UTC | 4h 25m |
| 2026-05-14 | AHY107 | GYD → LGW | May 14, 13:05 UTC | May 15, 09:10 UTC | 20h 5m |
| 2026-05-14 | AHY107 | GYD → LGW | May 14, 11:05 UTC | May 15, 09:10 UTC | 22h 5m |
| 2026-05-14 | AHY046 | BCN → GYD | May 14, 10:35 UTC | May 15, 09:00 UTC | 22h 25m |
| 2026-05-13 | AHY045 | GYD → BCN | May 13, 13:05 UTC | May 14, 08:55 UTC | 19h 50m |
| 2026-05-13 | AHY045 | GYD → BCN | May 13, 11:05 UTC | May 14, 08:55 UTC | 21h 50m |
| 2026-05-12 | AHY107 | GYD → LGW | May 12, 16:40 UTC | May 13, 09:35 UTC | 16h 55m |
| 2026-05-12 | AHY107 | GYD → LGW | May 12, 13:40 UTC | May 13, 09:35 UTC | 19h 55m |
| 2026-05-12 | AHY107 | GYD → LGW | May 12, 11:10 UTC | May 13, 09:35 UTC | 22h 25m |
| 2026-05-12 | AHY071 | GYD → VIE | May 12, 05:50 UTC | May 12, 09:35 UTC | 3h 45m |
| 2026-05-11 | AHY108 | LGW → GYD | May 11, 10:45 UTC | May 11, 15:25 UTC | 4h 40m |
| 2026-05-11 | AHY107 | GYD → LGW | May 11, 04:00 UTC | May 11, 09:15 UTC | 5h 15m |
| 2026-05-10 | AHY107 | GYD → LGW | May 10, 11:05 UTC | May 11, 09:15 UTC | 22h 10m |
| 2026-05-10 | AHY107 | GYD → LGW | May 10, 10:35 UTC | May 11, 09:00 UTC | 22h 25m |
| 2026-05-09 | AHY046 | BCN → GYD | May 9, 11:05 UTC | May 10, 06:25 UTC | 19h 20m |
| 2026-05-09 | AHY046 | BCN → GYD | May 9, 10:35 UTC | May 10, 06:25 UTC | 19h 50m |
| 2026-05-09 | AHY045 | GYD → BCN | May 9, 03:25 UTC | May 9, 08:45 UTC | 5h 20m |
| 2026-05-08 | AHY045 | GYD → BCN | May 8, 11:05 UTC | May 9, 08:45 UTC | 21h 40m |
| 2026-05-08 | AHY045 | GYD → BCN | May 8, 09:54 UTC | May 9, 08:45 UTC | 22h 50m |
| 2026-05-08 | AHY075 | GYD → IST | May 8, 05:14 UTC | May 8, 06:25 UTC | 1h 10m |
| 2026-05-05 | AHY8238 | TBS → GYD | May 5, 22:10 UTC | May 5, 22:40 UTC | 30m |
| 2026-05-05 | AHY8237 | GYD → TBS | May 5, 20:40 UTC | May 5, 21:01 UTC | 20m |
| 2026-05-05 | AHY8226 | TBS → GYD | May 5, 17:55 UTC | May 5, 18:25 UTC | 30m |
| 2026-05-05 | AHY8225 | GYD → TBS | May 5, 15:45 UTC | May 5, 16:15 UTC | 30m |
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-BAK page for operator, model, and routing details .