sensors Mode-S transponder
800B57
ICAO 24-bit transponder address · allocated to India
Currently assigned to VT-AUV · BOMBARDIER CL-600 Challenger
- Hex
- 800B57
- Octal
- 40005527
- Decimal
- 8,391,511
- Country
- IN
- Tail
- VT-AUV
- Type
- CL60
- Flights observed
- 79
- Distinct callsigns
- 1
- Country
- IN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 800B57 falls within the block assigned to India (IN) by ICAO Annex 10, Volume III. Every aircraft registered in India 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| VTAUV | - | 79 | 2026-07-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | VTAUV | - | Jul 16, 13:34 UTC | Jul 16, 14:00 UTC | 25m |
| 2026-07-12 | VTAUV | - | Jul 12, 13:25 UTC | Jul 12, 13:35 UTC | 10m |
| 2026-07-12 | VTAUV | - | Jul 12, 09:20 UTC | Jul 12, 09:35 UTC | 15m |
| 2026-07-12 | VTAUV | - | Jul 12, 05:40 UTC | Jul 12, 07:10 UTC | 1h 30m |
| 2026-07-12 | VTAUV | - | Jul 12, 02:55 UTC | Jul 12, 04:50 UTC | 1h 55m |
| 2026-07-12 | VTAUV | - | Jul 12, 02:01 UTC | Jul 12, 02:10 UTC | 10m |
| 2026-07-09 | VTAUV | - | Jul 9, 07:40 UTC | Jul 9, 10:20 UTC | 2h 40m |
| 2026-07-09 | VTAUV | - | Jul 9, 01:15 UTC | Jul 9, 04:00 UTC | 2h 45m |
| 2026-07-09 | VTAUV | - | Jul 9, 00:00 UTC | Jul 9, 00:10 UTC | 10m |
| 2026-07-08 | VTAUV | - | Jul 8, 14:10 UTC | Jul 8, 14:20 UTC | 10m |
| 2026-07-08 | VTAUV | - | Jul 8, 11:20 UTC | Jul 8, 11:35 UTC | 15m |
| 2026-07-08 | VTAUV | - | Jul 8, 07:05 UTC | Jul 8, 08:00 UTC | 55m |
| 2026-07-07 | VTAUV | - | Jul 7, 05:45 UTC | Jul 7, 06:05 UTC | 20m |
| 2026-07-05 | VTAUV | - | Jul 5, 10:30 UTC | Jul 5, 10:45 UTC | 15m |
| 2026-07-05 | VTAUV | - | Jul 5, 09:30 UTC | Jul 5, 09:50 UTC | 20m |
| 2026-07-05 | VTAUV | - | Jul 5, 06:15 UTC | Jul 5, 06:30 UTC | 15m |
| 2026-07-04 | VTAUV | - | Jul 4, 10:05 UTC | Jul 4, 12:40 UTC | 2h 35m |
| 2026-07-01 | VTAUV | - | Jul 1, 10:50 UTC | Jul 1, 13:10 UTC | 2h 20m |
| 2026-07-01 | VTAUV | - | Jul 1, 09:45 UTC | Jul 1, 09:55 UTC | 10m |
| 2026-07-01 | VTAUV | - | Jul 1, 08:05 UTC | Jul 1, 08:25 UTC | 20m |
| 2026-06-24 | VTAUV | - | Jun 24, 04:34 UTC | Jun 24, 04:55 UTC | 20m |
| 2026-06-17 | VTAUV | - | Jun 17, 07:50 UTC | Jun 17, 08:45 UTC | 55m |
| 2026-06-07 | VTAUV | - | Jun 7, 18:35 UTC | Jun 7, 18:55 UTC | 20m |
| 2026-06-07 | VTAUV | - | Jun 7, 15:30 UTC | Jun 7, 17:20 UTC | 1h 50m |
| 2026-06-07 | VTAUV | - | Jun 7, 03:50 UTC | Jun 7, 06:05 UTC | 2h 15m |
| 2026-06-06 | VTAUV | - | Jun 6, 07:20 UTC | Jun 6, 07:40 UTC | 20m |
| 2026-06-05 | VTAUV | - | Jun 5, 10:30 UTC | Jun 5, 10:40 UTC | 10m |
| 2026-06-05 | VTAUV | - | Jun 5, 07:50 UTC | Jun 5, 08:00 UTC | 10m |
| 2026-06-05 | VTAUV | - | Jun 5, 06:20 UTC | Jun 5, 06:35 UTC | 15m |
| 2026-06-03 | VTAUV | - | Jun 3, 06:15 UTC | Jun 3, 06:35 UTC | 20m |
| 2026-06-02 | VTAUV | - | Jun 2, 03:45 UTC | Jun 2, 03:55 UTC | 10m |
| 2026-05-30 | VTAUV | - | May 30, 06:20 UTC | May 30, 18:05 UTC | 11h 45m |
| 2026-05-27 | VTAUV | - | May 27, 03:54 UTC | May 27, 16:10 UTC | 12h 16m |
| 2026-05-26 | VTAUV | - | May 26, 10:50 UTC | May 26, 14:40 UTC | 3h 50m |
| 2026-05-26 | VTAUV | - | May 26, 03:45 UTC | May 26, 07:15 UTC | 3h 30m |
| 2026-05-25 | VTAUV | - | May 25, 13:20 UTC | May 25, 13:40 UTC | 20m |
| 2026-05-25 | VTAUV | - | May 25, 05:30 UTC | May 25, 05:55 UTC | 25m |
| 2026-05-22 | VTAUV | - | May 22, 09:25 UTC | May 22, 10:45 UTC | 1h 20m |
| 2026-05-22 | VTAUV | - | May 22, 03:35 UTC | May 22, 04:50 UTC | 1h 15m |
| 2026-05-21 | VTAUV | - | May 21, 08:35 UTC | May 21, 09:10 UTC | 35m |
| 2026-05-21 | VTAUV | - | May 21, 04:10 UTC | May 21, 04:40 UTC | 30m |
| 2026-05-21 | VTAUV | - | May 21, 03:10 UTC | May 21, 03:20 UTC | 10m |
| 2026-05-20 | VTAUV | - | May 20, 13:50 UTC | May 20, 14:15 UTC | 25m |
| 2026-05-20 | VTAUV | - | May 20, 11:50 UTC | May 20, 12:25 UTC | 35m |
| 2026-05-20 | VTAUV | - | May 20, 06:30 UTC | May 20, 08:45 UTC | 2h 15m |
| 2026-05-19 | VTAUV | - | May 19, 13:15 UTC | May 19, 13:35 UTC | 20m |
| 2026-05-19 | VTAUV | - | May 19, 11:15 UTC | May 19, 11:40 UTC | 25m |
| 2026-05-19 | VTAUV | - | May 19, 03:35 UTC | May 19, 05:55 UTC | 2h 20m |
| 2026-05-19 | VTAUV | - | May 19, 02:35 UTC | May 19, 02:50 UTC | 15m |
| 2026-05-16 | VTAUV | - | May 16, 13:11 UTC | May 16, 13:25 UTC | 15m |
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 VT-AUV page for operator, model, and routing details .