sensors Mode-S transponder
7C44C7
ICAO 24-bit transponder address · allocated to Australia
Currently assigned to VH-NVD · CESSNA 172 Skyhawk · operated by ROYAL MELBOURNE INSTITUTE OF TECHNOLOGY
- Hex
- 7C44C7
- Octal
- 37042307
- Decimal
- 8,144,071
- Country
- AU
- Tail
- VH-NVD
- Type
- C172
- Flights observed
- 110
- Distinct callsigns
- 1
- Country
- AU
- Last broadcast
- Jul 25, 04:50 UTC
Last known position
Country allocation
The ICAO 24-bit address 7C44C7 falls within the block assigned to Australia (AU) by ICAO Annex 10, Volume III. Every aircraft registered in Australia 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 |
|---|---|---|---|
| NVD | - | 110 | 2026-07-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | NVD | - | Jul 25, 04:10 UTC | Jul 25, 04:50 UTC | 40m |
| 2026-07-24 | NVD | - | Jul 24, 05:00 UTC | Jul 24, 05:50 UTC | 50m |
| 2026-07-24 | NVD | - | Jul 24, 02:50 UTC | Jul 24, 03:35 UTC | 45m |
| 2026-07-24 | NVD | - | Jul 24, 01:35 UTC | Jul 24, 02:00 UTC | 25m |
| 2026-07-23 | NVD | - | Jul 23, 23:25 UTC | Jul 24, 00:10 UTC | 45m |
| 2026-07-23 | NVD | - | Jul 23, 11:00 UTC | Jul 23, 11:45 UTC | 45m |
| 2026-07-23 | NVD | - | Jul 23, 09:40 UTC | Jul 23, 10:25 UTC | 45m |
| 2026-07-23 | NVD | - | Jul 23, 06:15 UTC | Jul 23, 07:05 UTC | 50m |
| 2026-07-23 | NVD | - | Jul 23, 03:10 UTC | Jul 23, 03:45 UTC | 35m |
| 2026-07-22 | NVD | - | Jul 22, 23:20 UTC | Jul 23, 01:40 UTC | 2h 20m |
| 2026-07-22 | NVD | - | Jul 22, 02:35 UTC | Jul 22, 04:05 UTC | 1h 30m |
| 2026-07-21 | NVD | - | Jul 21, 05:10 UTC | Jul 21, 05:25 UTC | 15m |
| 2026-07-21 | NVD | - | Jul 21, 03:25 UTC | Jul 21, 03:40 UTC | 15m |
| 2026-07-20 | NVD | - | Jul 20, 01:00 UTC | Jul 20, 02:05 UTC | 1h 5m |
| 2026-07-19 | NVD | - | Jul 19, 23:05 UTC | Jul 19, 23:35 UTC | 30m |
| 2026-07-19 | NVD | - | Jul 19, 02:20 UTC | Jul 19, 03:10 UTC | 50m |
| 2026-07-19 | NVD | - | Jul 19, 00:40 UTC | Jul 19, 01:40 UTC | 1h 0m |
| 2026-07-17 | NVD | - | Jul 17, 07:55 UTC | Jul 17, 10:20 UTC | 2h 25m |
| 2026-07-17 | NVD | - | Jul 17, 04:25 UTC | Jul 17, 06:00 UTC | 1h 35m |
| 2026-07-17 | NVD | - | Jul 17, 03:59 UTC | Jul 17, 04:10 UTC | 10m |
| 2026-07-16 | NVD | - | Jul 16, 23:49 UTC | Jul 17, 03:05 UTC | 3h 15m |
| 2026-07-15 | NVD | - | Jul 15, 03:45 UTC | Jul 15, 06:10 UTC | 2h 25m |
| 2026-07-15 | NVD | - | Jul 15, 03:15 UTC | Jul 15, 03:30 UTC | 15m |
| 2026-07-14 | NVD | - | Jul 14, 04:05 UTC | Jul 14, 04:25 UTC | 20m |
| 2026-07-14 | NVD | - | Jul 14, 02:40 UTC | Jul 14, 02:55 UTC | 15m |
| 2026-07-13 | NVD | - | Jul 13, 22:40 UTC | Jul 14, 01:20 UTC | 2h 40m |
| 2026-07-10 | NVD | - | Jul 10, 04:00 UTC | Jul 10, 06:40 UTC | 2h 40m |
| 2026-07-09 | NVD | - | Jul 9, 23:45 UTC | Jul 10, 00:05 UTC | 20m |
| 2026-07-07 | NVD | MBW → MBW | Jul 7, 07:10 UTC | Jul 7, 07:25 UTC | 15m |
| 2026-05-29 | NVD | - | May 29, 02:00 UTC | May 29, 02:15 UTC | 15m |
| 2026-05-28 | NVD | - | May 28, 23:30 UTC | May 28, 23:40 UTC | 10m |
| 2026-05-28 | NVD | - | May 28, 05:10 UTC | May 28, 05:45 UTC | 35m |
| 2026-05-28 | NVD | - | May 28, 02:25 UTC | May 28, 03:00 UTC | 35m |
| 2026-05-26 | NVD | - | May 26, 05:10 UTC | May 26, 05:45 UTC | 35m |
| 2026-05-25 | NVD | - | May 25, 03:00 UTC | May 25, 03:55 UTC | 55m |
| 2026-05-24 | NVD | - | May 24, 23:05 UTC | May 24, 23:46 UTC | 41m |
| 2026-05-24 | NVD | - | May 24, 04:35 UTC | May 24, 05:45 UTC | 1h 10m |
| 2026-05-24 | NVD | - | May 24, 03:20 UTC | May 24, 04:05 UTC | 45m |
| 2026-05-24 | NVD | - | May 24, 02:50 UTC | May 24, 03:05 UTC | 15m |
| 2026-05-24 | NVD | - | May 24, 00:25 UTC | May 24, 01:15 UTC | 50m |
| 2026-05-23 | NVD | - | May 23, 23:15 UTC | May 23, 23:40 UTC | 25m |
| 2026-05-23 | NVD | - | May 23, 23:00 UTC | May 23, 23:10 UTC | 10m |
| 2026-05-23 | NVD | - | May 23, 05:05 UTC | May 23, 05:45 UTC | 40m |
| 2026-05-23 | NVD | - | May 23, 04:05 UTC | May 23, 04:45 UTC | 40m |
| 2026-05-23 | NVD | - | May 23, 00:00 UTC | May 23, 00:45 UTC | 45m |
| 2026-05-22 | NVD | - | May 22, 22:30 UTC | May 22, 23:10 UTC | 40m |
| 2026-05-22 | NVD | - | May 22, 02:40 UTC | May 22, 04:25 UTC | 1h 45m |
| 2026-05-21 | NVD | - | May 21, 08:50 UTC | May 21, 09:30 UTC | 40m |
| 2026-05-21 | NVD | - | May 21, 02:05 UTC | May 21, 02:50 UTC | 45m |
| 2026-05-21 | NVD | - | May 21, 00:05 UTC | May 21, 00:45 UTC | 40m |
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 VH-NVD page for operator, model, and routing details .