sensors Mode-S transponder
7C354D
ICAO 24-bit transponder address · allocated to Australia
Currently assigned to VH-KTB · BEECH 76 Duchess · operated by PEARLA PTY LTD
- Hex
- 7C354D
- Octal
- 37032515
- Decimal
- 8,140,109
- Country
- AU
- Tail
- VH-KTB
- Type
- BE76
- Flights observed
- 19
- Distinct callsigns
- 1
- Country
- AU
- Last broadcast
- Jul 23, 00:25 UTC
Last known position
Country allocation
The ICAO 24-bit address 7C354D 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 |
|---|---|---|---|
| KTB | - | 19 | 2026-07-22 |
Recent flights last 19
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-22 | KTB | JAD → JAD | Jul 22, 23:45 UTC | Jul 23, 00:25 UTC | 40m |
| 2026-07-22 | KTB | - | Jul 22, 02:40 UTC | Jul 22, 03:05 UTC | 25m |
| 2026-07-14 | KTB | JAD → JAD | Jul 14, 23:35 UTC | Jul 15, 00:25 UTC | 50m |
| 2026-07-02 | KTB | JAD → JAD | Jul 2, 23:40 UTC | Jul 3, 00:25 UTC | 45m |
| 2026-06-23 | KTB | - | Jun 23, 06:24 UTC | Jun 23, 07:19 UTC | 55m |
| 2026-06-17 | KTB | - | Jun 17, 11:50 UTC | Jun 17, 13:55 UTC | 2h 5m |
| 2026-06-09 | KTB | JAD → JAD | Jun 9, 06:50 UTC | Jun 9, 08:30 UTC | 1h 40m |
| 2026-05-24 | KTB | - | May 24, 03:10 UTC | May 24, 04:10 UTC | 1h 0m |
| 2026-05-24 | KTB | JAD → JAD | May 24, 00:15 UTC | May 24, 01:05 UTC | 50m |
| 2026-05-22 | KTB | JAD → JAD | May 22, 05:25 UTC | May 22, 06:20 UTC | 55m |
| 2026-05-18 | KTB | - | May 18, 07:20 UTC | May 18, 07:50 UTC | 30m |
| 2026-05-10 | KTB | JAD → JAD | May 10, 03:35 UTC | May 10, 04:15 UTC | 40m |
| 2026-05-06 | KTB | - | May 6, 06:20 UTC | May 6, 07:10 UTC | 50m |
| 2026-05-03 | KTB | - | May 3, 00:10 UTC | May 3, 01:00 UTC | 50m |
| 2026-05-01 | KTB | JAD → JAD | May 1, 06:05 UTC | May 1, 07:45 UTC | 1h 40m |
| 2026-04-23 | KTB | JAD → JAD | Apr 23, 23:40 UTC | Apr 24, 00:55 UTC | 1h 15m |
| 2026-04-20 | KTB | JAD → JAD | Apr 20, 00:40 UTC | Apr 20, 01:50 UTC | 1h 10m |
| 2026-04-17 | KTB | - | Apr 17, 05:50 UTC | Apr 17, 06:55 UTC | 1h 5m |
| 2026-04-16 | KTB | - | Apr 16, 05:54 UTC | Apr 16, 07:05 UTC | 1h 10m |
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-KTB page for operator, model, and routing details .