sensors Mode-S transponder
4D23AB
ICAO 24-bit transponder address · allocated to Malta
Currently assigned to 9H-VISTA · BOMBARDIER BD-700 Global 7000/7500
- Hex
- 4D23AB
- Octal
- 23221653
- Decimal
- 5,055,403
- Country
- MT
- Tail
- 9H-VISTA
- Type
- GL7T
- Flights observed
- 49
- Distinct callsigns
- 4
- Country
- MT
- Last broadcast
- 18h ago
Last known position
Country allocation
The ICAO 24-bit address 4D23AB falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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 4 distinct
Recent flights last 49
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | VJT725 | - | Jun 2, 01:30 UTC | Jun 2, 02:25 UTC | 55m |
| 2026-05-30 | VJT725 | - | May 30, 17:50 UTC | May 30, 19:15 UTC | 1h 25m |
| 2026-05-29 | VJT725 | HKG → SJC | May 29, 04:05 UTC | May 29, 16:30 UTC | 12h 25m |
| 2026-05-25 | VJT725 | - | May 25, 08:35 UTC | May 25, 08:55 UTC | 20m |
| 2026-05-25 | VJT725 | - | May 25, 05:05 UTC | May 25, 08:00 UTC | 2h 55m |
| 2026-05-24 | VJT725 | - | May 24, 23:00 UTC | May 24, 23:46 UTC | 46m |
| 2026-05-24 | VJT958T | - | May 24, 05:40 UTC | May 24, 06:15 UTC | 35m |
| 2026-05-23 | VJT958T | - | May 23, 15:15 UTC | May 24, 03:20 UTC | 12h 6m |
| 2026-05-22 | VJT725 | - | May 22, 19:40 UTC | May 22, 20:35 UTC | 55m |
| 2026-05-21 | VJT725 | - | May 21, 09:35 UTC | May 21, 19:40 UTC | 10h 5m |
| 2026-05-20 | VJT725 | - | May 20, 15:45 UTC | May 20, 16:35 UTC | 50m |
| 2026-05-20 | VJT725 | BCN → LBG | May 20, 05:20 UTC | May 20, 06:55 UTC | 1h 35m |
| 2026-05-18 | VJT725 | - | May 18, 16:00 UTC | May 19, 02:25 UTC | 10h 24m |
| 2026-05-17 | VJT725 | - | May 17, 17:10 UTC | May 17, 18:55 UTC | 1h 45m |
| 2026-05-16 | VJT725 | - | May 16, 06:50 UTC | May 17, 01:00 UTC | 18h 10m |
| 2026-05-16 | VJT725 | HND → SJC | May 16, 05:25 UTC | May 17, 01:00 UTC | 19h 35m |
| 2026-05-15 | VJT725 | - | May 15, 13:20 UTC | May 15, 14:00 UTC | 40m |
| 2026-05-13 | VJT725 | - | May 13, 18:55 UTC | May 13, 19:30 UTC | 35m |
| 2026-05-12 | VJT725 | GMP → SJC | May 12, 12:55 UTC | May 12, 23:05 UTC | 10h 10m |
| 2026-05-12 | VJT725 | HND → GMP | May 12, 03:20 UTC | May 12, 05:05 UTC | 1h 45m |
| 2026-05-10 | VJT725 | - | May 10, 05:00 UTC | May 10, 15:49 UTC | 10h 50m |
| 2026-05-08 | VJT725 | - | May 8, 20:05 UTC | May 9, 01:30 UTC | 5h 25m |
| 2026-05-06 | VJT725 | - | May 6, 20:30 UTC | May 6, 23:00 UTC | 2h 30m |
| 2026-05-01 | VJT725 | - | May 1, 17:05 UTC | May 2, 07:15 UTC | 14h 10m |
| 2026-04-28 | VJT274 | - | Apr 28, 06:30 UTC | Apr 28, 15:50 UTC | 9h 20m |
| 2026-04-27 | VJT274 | - | Apr 27, 15:00 UTC | Apr 27, 23:00 UTC | 8h 0m |
| 2026-04-27 | VJT145 | - | Apr 27, 10:55 UTC | Apr 27, 13:20 UTC | 2h 25m |
| 2026-04-26 | VJT145 | - | Apr 26, 00:35 UTC | Apr 26, 10:15 UTC | 9h 40m |
| 2026-04-25 | VJT725 | - | Apr 25, 17:40 UTC | Apr 25, 23:20 UTC | 5h 40m |
| 2026-04-24 | VJT725 | - | Apr 24, 08:30 UTC | Apr 24, 16:00 UTC | 7h 30m |
| 2026-04-23 | VJT725 | - | Apr 23, 02:15 UTC | Apr 23, 09:05 UTC | 6h 50m |
| 2026-04-21 | VJT725 | - | Apr 21, 21:35 UTC | Apr 21, 21:55 UTC | 20m |
| 2026-04-18 | VJT725 | - | Apr 18, 05:25 UTC | Apr 18, 06:05 UTC | 40m |
| 2026-04-18 | VJT725 | - | Apr 18, 04:45 UTC | Apr 18, 06:05 UTC | 1h 20m |
| 2026-04-18 | VJT725 | - | Apr 18, 03:25 UTC | Apr 18, 05:20 UTC | 1h 55m |
| 2026-04-18 | VJT725 | - | Apr 18, 01:35 UTC | Apr 18, 03:20 UTC | 1h 45m |
| 2026-04-17 | VJT725 | - | Apr 17, 23:25 UTC | Apr 18, 01:20 UTC | 1h 55m |
| 2026-04-17 | VJT725 | - | Apr 17, 22:35 UTC | Apr 17, 23:20 UTC | 45m |
| 2026-04-17 | VJT725 | - | Apr 17, 17:55 UTC | Apr 17, 18:40 UTC | 45m |
| 2026-04-17 | VJT725 | - | Apr 17, 12:00 UTC | Apr 17, 13:15 UTC | 1h 15m |
| 2026-04-17 | VJT725 | - | Apr 17, 09:20 UTC | Apr 17, 09:55 UTC | 35m |
| 2026-04-17 | VJT725 | - | Apr 17, 08:00 UTC | Apr 17, 08:50 UTC | 50m |
| 2026-04-17 | VJT725 | - | Apr 17, 05:20 UTC | Apr 17, 06:10 UTC | 50m |
| 2026-04-16 | VJT725 | - | Apr 16, 23:20 UTC | Apr 17, 00:40 UTC | 1h 20m |
| 2026-04-16 | VJT725 | - | Apr 16, 23:00 UTC | Apr 16, 23:10 UTC | 10m |
| 2026-04-15 | VJT725 | - | Apr 15, 23:20 UTC | Apr 16, 01:00 UTC | 1h 40m |
| 2026-04-15 | VJT725 | - | Apr 15, 21:05 UTC | Apr 15, 22:10 UTC | 1h 5m |
| 2026-04-15 | VJT725 | - | Apr 15, 20:40 UTC | Apr 15, 21:00 UTC | 20m |
| 2026-04-12 | VJT725 | - | Apr 12, 17:15 UTC | Apr 12, 20:15 UTC | 3h 0m |
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 9H-VISTA page for operator, model, and routing details .