sensors Mode-S transponder
7CF835
ICAO 24-bit transponder address · allocated to Australia
Currently assigned to A97-449 · Lockheed Martin C-130J-30 Hercules
- Hex
- 7CF835
- Octal
- 37174065
- Decimal
- 8,190,005
- Country
- AU
- Tail
- A97-449
- Type
- C30J
- Flights observed
- 61
- Distinct callsigns
- 14
- Country
- AU
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 7CF835 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| TROJ61 | - | 9 | 2026-04-18 |
| ASY553 | - | 8 | 2026-05-09 |
| TROJ27 | - | 7 | 2026-07-16 |
| ASY600 | - | 7 | 2026-06-03 |
| TROJ35 | - | 6 | 2026-04-24 |
| TROJ55 | - | 4 | 2026-06-17 |
| ASY622 | - | 4 | 2026-06-26 |
| TROJ04 | - | 3 | 2026-05-22 |
| ASY626 | - | 3 | 2026-06-28 |
| TROJ54 | - | 2 | 2026-06-30 |
| TROJ52 | - | 2 | 2026-06-13 |
| TROJ40 | - | 2 | 2026-05-10 |
| TROJ36 | - | 2 | 2026-05-15 |
| TROJ30 | - | 1 | 2026-06-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | TROJ27 | - | Jul 16, 04:50 UTC | Jul 16, 05:30 UTC | 40m |
| 2026-07-15 | TROJ27 | - | Jul 15, 23:45 UTC | Jul 16, 00:20 UTC | 35m |
| 2026-07-12 | TROJ27 | - | Jul 12, 07:15 UTC | Jul 12, 07:50 UTC | 35m |
| 2026-07-11 | TROJ27 | - | Jul 11, 23:20 UTC | Jul 12, 01:45 UTC | 2h 25m |
| 2026-07-09 | TROJ27 | - | Jul 9, 00:10 UTC | Jul 9, 00:20 UTC | 10m |
| 2026-07-07 | TROJ27 | - | Jul 7, 04:15 UTC | Jul 7, 04:25 UTC | 10m |
| 2026-07-04 | TROJ27 | - | Jul 4, 23:15 UTC | Jul 5, 01:55 UTC | 2h 40m |
| 2026-06-30 | TROJ54 | - | Jun 30, 04:10 UTC | Jun 30, 04:45 UTC | 35m |
| 2026-06-29 | TROJ54 | - | Jun 29, 23:09 UTC | Jun 29, 23:44 UTC | 35m |
| 2026-06-28 | ASY626 | WLG → XRH | Jun 28, 21:24 UTC | Jun 29, 01:39 UTC | 4h 15m |
| 2026-06-28 | ASY626 | - | Jun 28, 06:24 UTC | Jun 28, 06:40 UTC | 15m |
| 2026-06-28 | ASY626 | - | Jun 28, 02:34 UTC | Jun 28, 03:25 UTC | 50m |
| 2026-06-26 | ASY622 | - | Jun 26, 05:35 UTC | Jun 26, 06:25 UTC | 50m |
| 2026-06-22 | ASY622 | - | Jun 22, 03:45 UTC | Jun 22, 03:54 UTC | 10m |
| 2026-06-22 | ASY622 | - | Jun 22, 01:29 UTC | Jun 22, 02:10 UTC | 40m |
| 2026-06-20 | ASY622 | - | Jun 20, 23:45 UTC | Jun 21, 01:14 UTC | 1h 30m |
| 2026-06-18 | TROJ30 | - | Jun 18, 00:10 UTC | Jun 18, 01:05 UTC | 55m |
| 2026-06-17 | TROJ55 | - | Jun 17, 03:45 UTC | Jun 17, 06:10 UTC | 2h 25m |
| 2026-06-17 | TROJ55 | - | Jun 17, 02:00 UTC | Jun 17, 02:30 UTC | 30m |
| 2026-06-16 | TROJ55 | - | Jun 16, 04:30 UTC | Jun 16, 05:00 UTC | 30m |
| 2026-06-16 | TROJ55 | - | Jun 16, 00:40 UTC | Jun 16, 03:25 UTC | 2h 45m |
| 2026-06-13 | TROJ52 | - | Jun 13, 09:50 UTC | Jun 13, 10:20 UTC | 30m |
| 2026-06-12 | TROJ52 | - | Jun 12, 23:05 UTC | Jun 12, 23:40 UTC | 35m |
| 2026-06-03 | ASY600 | - | Jun 3, 06:10 UTC | Jun 3, 10:40 UTC | 4h 30m |
| 2026-06-02 | ASY600 | - | Jun 2, 05:40 UTC | Jun 2, 06:15 UTC | 35m |
| 2026-06-01 | ASY600 | - | Jun 1, 09:25 UTC | Jun 1, 09:40 UTC | 15m |
| 2026-06-01 | ASY600 | - | Jun 1, 03:40 UTC | Jun 1, 04:30 UTC | 50m |
| 2026-05-30 | ASY600 | - | May 30, 07:20 UTC | May 30, 09:25 UTC | 2h 5m |
| 2026-05-30 | ASY600 | - | May 30, 02:25 UTC | May 30, 02:45 UTC | 20m |
| 2026-05-29 | ASY600 | - | May 29, 05:20 UTC | May 29, 05:55 UTC | 35m |
| 2026-05-22 | TROJ04 | - | May 22, 01:40 UTC | May 22, 02:10 UTC | 30m |
| 2026-05-21 | TROJ04 | - | May 21, 11:30 UTC | May 21, 12:05 UTC | 35m |
| 2026-05-19 | TROJ04 | - | May 19, 01:05 UTC | May 19, 01:35 UTC | 30m |
| 2026-05-15 | TROJ36 | - | May 15, 07:15 UTC | May 15, 07:45 UTC | 30m |
| 2026-05-14 | - | - | May 14, 04:55 UTC | May 14, 05:05 UTC | 10m |
| 2026-05-13 | TROJ36 | - | May 13, 23:25 UTC | May 14, 00:35 UTC | 1h 10m |
| 2026-05-10 | TROJ40 | - | May 10, 07:04 UTC | May 10, 08:10 UTC | 1h 5m |
| 2026-05-10 | TROJ40 | - | May 10, 02:20 UTC | May 10, 03:25 UTC | 1h 5m |
| 2026-05-09 | ASY553 | - | May 9, 04:35 UTC | May 9, 05:00 UTC | 25m |
| 2026-05-09 | ASY553 | - | May 9, 03:00 UTC | May 9, 03:40 UTC | 40m |
| 2026-05-08 | ASY553 | - | May 8, 23:50 UTC | May 9, 00:05 UTC | 15m |
| 2026-05-08 | ASY553 | - | May 8, 22:25 UTC | May 8, 22:35 UTC | 10m |
| 2026-05-06 | ASY553 | - | May 6, 23:20 UTC | May 7, 01:10 UTC | 1h 50m |
| 2026-05-06 | ASY553 | - | May 6, 04:40 UTC | May 6, 04:50 UTC | 10m |
| 2026-05-06 | ASY553 | - | May 6, 02:55 UTC | May 6, 03:15 UTC | 20m |
| 2026-05-05 | ASY553 | - | May 5, 23:30 UTC | May 6, 00:15 UTC | 45m |
| 2026-04-24 | TROJ35 | - | Apr 24, 02:45 UTC | Apr 24, 04:40 UTC | 1h 55m |
| 2026-04-24 | TROJ35 | - | Apr 24, 01:00 UTC | Apr 24, 01:25 UTC | 25m |
| 2026-04-19 | TROJ35 | - | Apr 19, 23:55 UTC | Apr 20, 00:55 UTC | 1h 0m |
| 2026-04-19 | TROJ35 | - | Apr 19, 05:45 UTC | Apr 19, 07:50 UTC | 2h 5m |
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 A97-449 page for operator, model, and routing details .