Apparatus

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sensors Mode-S transponder

7C67D3

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-USL · CESSNA 172 Skyhawk · operated by AERO-STAR AVIATION PTY LTD

Hex
7C67D3
Octal
37063723
Decimal
8,153,043
Country
AU
Tail
VH-USL
Type
C172
No current signal · last broadcast 6d ago
Flights observed
155
Distinct callsigns
1
Country
AU
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 7C67D3.

Country allocation

The ICAO 24-bit address 7C67D3 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
USL - 155 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-08 USL - Jul 8, 06:35 UTCJul 8, 06:55 UTC20m
2026-07-08 USL - Jul 8, 04:40 UTCJul 8, 05:05 UTC25m
2026-07-08 USL - Jul 8, 01:25 UTCJul 8, 01:50 UTC25m
2026-07-07 USL - Jul 7, 23:20 UTCJul 7, 23:35 UTC15m
2026-07-07 USL - Jul 7, 22:50 UTCJul 7, 23:10 UTC20m
2026-07-07 USL - Jul 7, 04:50 UTCJul 7, 05:45 UTC55m
2026-07-07 USL - Jul 7, 01:30 UTCJul 7, 03:45 UTC2h 15m
2026-07-06 USL - Jul 6, 03:20 UTCJul 6, 06:10 UTC2h 50m
2026-07-05 USL - Jul 5, 01:45 UTCJul 5, 02:25 UTC40m
2026-07-02 USL - Jul 2, 23:30 UTCJul 2, 23:40 UTC10m
2026-06-29 USL - Jun 29, 04:20 UTCJun 29, 04:55 UTC35m
2026-06-29 USL - Jun 29, 02:45 UTCJun 29, 03:14 UTC30m
2026-06-29 USL - Jun 29, 01:14 UTCJun 29, 01:44 UTC30m
2026-06-28 USL - Jun 28, 22:55 UTCJun 28, 22:59 UTC5m
2026-06-28 USL - Jun 28, 22:24 UTCJun 28, 22:45 UTC20m
2026-06-28 USL - Jun 28, 03:40 UTCJun 28, 04:05 UTC25m
2026-06-28 USL - Jun 28, 02:05 UTCJun 28, 02:44 UTC40m
2026-06-28 USL - Jun 28, 00:15 UTCJun 28, 01:15 UTC1h 0m
2026-06-27 USL - Jun 27, 03:49 UTCJun 27, 04:24 UTC35m
2026-06-26 USL - Jun 26, 04:30 UTCJun 26, 05:24 UTC55m
2026-06-26 USL - Jun 26, 02:05 UTCJun 26, 02:54 UTC50m
2026-06-25 USL - Jun 25, 23:59 UTCJun 26, 00:39 UTC40m
2026-06-25 USL - Jun 25, 03:59 UTCJun 25, 05:00 UTC1h 0m
2026-06-25 USL - Jun 25, 01:19 UTCJun 25, 02:25 UTC1h 5m
2026-06-24 USL - Jun 24, 23:54 UTCJun 25, 00:29 UTC35m
2026-06-24 USL - Jun 24, 06:50 UTCJun 24, 07:50 UTC1h 0m
2026-06-24 USL - Jun 24, 04:44 UTCJun 24, 05:20 UTC35m
2026-06-24 USL - Jun 24, 03:24 UTCJun 24, 04:05 UTC40m
2026-06-23 USL - Jun 23, 23:34 UTCJun 24, 00:15 UTC40m
2026-06-23 USL - Jun 23, 03:34 UTCJun 23, 04:14 UTC40m
2026-06-23 USL - Jun 23, 01:40 UTCJun 23, 02:20 UTC40m
2026-06-22 USL - Jun 22, 23:24 UTCJun 23, 00:15 UTC50m
2026-06-22 USL - Jun 22, 06:05 UTCJun 22, 06:45 UTC40m
2026-06-22 USL - Jun 22, 04:30 UTCJun 22, 04:59 UTC30m
2026-06-22 USL - Jun 22, 01:25 UTCJun 22, 02:10 UTC45m
2026-06-21 USL - Jun 21, 23:24 UTCJun 22, 00:04 UTC40m
2026-06-21 USL - Jun 21, 06:24 UTCJun 21, 06:55 UTC30m
2026-06-21 USL - Jun 21, 04:34 UTCJun 21, 05:15 UTC40m
2026-06-21 USL - Jun 21, 00:25 UTCJun 21, 03:05 UTC2h 40m
2026-06-20 USL - Jun 20, 04:04 UTCJun 20, 04:44 UTC40m
2026-06-20 USL - Jun 20, 01:24 UTCJun 20, 02:04 UTC40m
2026-06-19 USL - Jun 19, 23:19 UTCJun 20, 00:09 UTC50m
2026-06-19 USL - Jun 19, 00:45 UTCJun 19, 01:29 UTC45m
2026-06-18 USL - Jun 18, 00:10 UTCJun 18, 00:45 UTC35m
2026-06-17 USL - Jun 17, 04:21 UTCJun 17, 05:05 UTC45m
2026-06-17 USL - Jun 17, 01:30 UTCJun 17, 02:15 UTC45m
2026-06-16 USL - Jun 16, 06:25 UTCJun 16, 06:50 UTC25m
2026-06-16 USL - Jun 16, 04:39 UTCJun 16, 05:25 UTC45m
2026-06-15 USL - Jun 15, 02:30 UTCJun 15, 03:19 UTC50m
2026-06-14 USL - Jun 14, 04:25 UTCJun 14, 04:35 UTC10m

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-USL page for operator, model, and routing details .

Mode-S 7C67D3 frequently asked

What is Mode-S code 7C67D3?
7C67D3 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-USL.
Where is Mode-S 7C67D3 registered?
Mode-S code 7C67D3 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C67D3 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C67D3, octal 37063723, decimal 8,153,043.
What flights does 7C67D3 operate?
Mode-S 7C67D3 has broadcast 1 distinct callsign, including USL.