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sensors Mode-S transponder

7C6743

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-UOL · CESSNA 208 Caravan · operated by HARDY AVIATION (N.T.) PTY LIMITED

Hex
7C6743
Octal
37063503
Decimal
8,152,899
Country
AU
Tail
VH-UOL
Type
C208
No current signal · last broadcast Jul 23, 06:30 UTC
Flights observed
102
Distinct callsigns
1
Country
AU
Last broadcast
Jul 23, 06:30 UTC

Last known position

Most recent position reported by Mode-S 7C6743.

Country allocation

The ICAO 24-bit address 7C6743 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
UOL - 101 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 UOL - Jul 23, 06:20 UTCJul 23, 06:30 UTC10m
2026-07-23 UOL - Jul 23, 05:20 UTCJul 23, 05:30 UTC10m
2026-07-22 UOL - Jul 22, 01:55 UTCJul 22, 02:05 UTC10m
2026-07-19 UOL - Jul 19, 23:15 UTCJul 19, 23:30 UTC15m
2026-07-16 UOL - Jul 16, 02:05 UTCJul 16, 02:15 UTC10m
2026-07-15 UOL - Jul 15, 22:40 UTCJul 15, 22:50 UTC10m
2026-07-15 UOL - Jul 15, 06:20 UTCJul 15, 06:35 UTC15m
2026-07-14 UOL - Jul 14, 00:05 UTCJul 14, 00:15 UTC10m
2026-07-08 UOL - Jul 8, 05:50 UTCJul 8, 06:00 UTC10m
2026-07-08 UOL - Jul 8, 01:05 UTCJul 8, 01:20 UTC15m
2026-07-07 UOL - Jul 7, 06:45 UTCJul 7, 06:55 UTC10m
2026-07-07 UOL - Jul 7, 05:05 UTCJul 7, 05:15 UTC10m
2026-07-06 UOL - Jul 6, 00:05 UTCJul 6, 00:20 UTC15m
2026-07-05 UOL - Jul 5, 02:35 UTCJul 5, 02:45 UTC10m
2026-07-04 UOL - Jul 4, 06:00 UTCJul 4, 06:10 UTC10m
2026-07-04 UOL - Jul 4, 03:35 UTCJul 4, 03:45 UTC10m
2026-07-03 UOL - Jul 3, 05:00 UTCJul 3, 05:10 UTC10m
2026-07-02 UOL - Jul 2, 22:25 UTCJul 2, 22:35 UTC10m
2026-07-02 UOL - Jul 2, 01:50 UTCJul 2, 02:00 UTC10m
2026-07-01 UOL - Jul 1, 02:05 UTCJul 1, 02:15 UTC10m
2026-06-30 UOL - Jun 30, 22:35 UTCJun 30, 22:45 UTC10m
2026-06-30 UOL - Jun 30, 01:30 UTCJun 30, 01:40 UTC10m
2026-06-29 UOL - Jun 29, 23:05 UTCJun 29, 23:14 UTC10m
2026-06-29 UOL - Jun 29, 01:44 UTCJun 29, 01:55 UTC10m
2026-06-27 UOL - Jun 27, 07:55 UTCJun 27, 08:05 UTC10m
2026-06-27 UOL - Jun 27, 06:05 UTCJun 27, 06:15 UTC10m
2026-06-26 UOL - Jun 26, 02:00 UTCJun 26, 02:09 UTC10m
2026-06-25 UOL - Jun 25, 22:45 UTCJun 25, 22:54 UTC10m
2026-06-25 UOL - Jun 25, 04:54 UTCJun 25, 05:05 UTC10m
2026-06-25 UOL - Jun 25, 01:40 UTCJun 25, 01:50 UTC10m
2026-06-24 UOL - Jun 24, 22:45 UTCJun 24, 22:55 UTC10m
2026-06-24 UOL - Jun 24, 06:39 UTCJun 24, 06:50 UTC10m
2026-06-24 UOL - Jun 24, 05:24 UTCJun 24, 05:34 UTC10m
2026-06-23 UOL - Jun 23, 06:39 UTCJun 23, 06:49 UTC10m
2026-06-23 UOL - Jun 23, 05:39 UTCJun 23, 05:54 UTC15m
2026-06-23 UOL - Jun 23, 01:30 UTCJun 23, 01:45 UTC15m
2026-06-22 UOL - Jun 22, 05:49 UTCJun 22, 06:00 UTC10m
2026-06-22 UOL - Jun 22, 01:55 UTCJun 22, 02:04 UTC10m
2026-06-21 UOL - Jun 21, 05:04 UTCJun 21, 05:15 UTC10m
2026-06-21 UOL - Jun 21, 03:14 UTCJun 21, 03:25 UTC10m
2026-06-19 UOL - Jun 19, 06:29 UTCJun 19, 06:39 UTC10m
2026-06-17 UOL - Jun 17, 23:10 UTCJun 17, 23:20 UTC10m
2026-06-17 UOL - Jun 17, 04:50 UTCJun 17, 05:00 UTC10m
2026-06-17 UOL - Jun 17, 01:45 UTCJun 17, 01:55 UTC10m
2026-06-16 UOL - Jun 16, 05:34 UTCJun 16, 05:50 UTC15m
2026-06-16 UOL - Jun 16, 01:45 UTCJun 16, 02:00 UTC15m
2026-06-15 UOL - Jun 15, 06:04 UTCJun 15, 06:15 UTC10m
2026-06-15 UOL - Jun 15, 02:55 UTCJun 15, 03:10 UTC15m
2026-06-12 UOL - Jun 12, 06:25 UTCJun 12, 06:45 UTC20m
2026-06-12 UOL - Jun 12, 02:20 UTCJun 12, 02:35 UTC15m

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

Mode-S 7C6743 frequently asked

What is Mode-S code 7C6743?
7C6743 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-UOL.
Where is Mode-S 7C6743 registered?
Mode-S code 7C6743 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6743 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 06:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6743, octal 37063503, decimal 8,152,899.
What flights does 7C6743 operate?
Mode-S 7C6743 has broadcast 1 distinct callsign, including UOL.