Apparatus

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sensors Mode-S transponder

7C5C59

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-SIZ · CESSNA 172 Skyhawk · operated by BRIGGS AEROSPACE PTY LTD

Hex
7C5C59
Octal
37056131
Decimal
8,150,105
Country
AU
Tail
VH-SIZ
Type
C172
No current signal · last broadcast 5h ago
Flights observed
110
Distinct callsigns
1
Country
AU
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 7C5C59.

Country allocation

The ICAO 24-bit address 7C5C59 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
SIZ - 110 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SIZ MBW → MBW May 30, 04:40 UTCMay 30, 05:35 UTC55m
2026-05-30 SIZ - May 30, 02:25 UTCMay 30, 03:15 UTC50m
2026-05-30 SIZ - May 30, 01:10 UTCMay 30, 01:40 UTC30m
2026-05-30 SIZ MBW → MEB May 30, 00:45 UTCMay 30, 01:05 UTC20m
2026-05-29 SIZ MBW → MBW May 29, 23:00 UTCMay 29, 23:40 UTC40m
2026-05-29 SIZ MBW → MBW May 29, 21:15 UTCMay 29, 22:20 UTC1h 5m
2026-05-29 SIZ MBW → MBW May 29, 04:05 UTCMay 29, 05:55 UTC1h 50m
2026-05-29 SIZ MBW → MBW May 29, 01:10 UTCMay 29, 02:10 UTC1h 0m
2026-05-28 SIZ MBW → MBW May 28, 22:05 UTCMay 28, 22:40 UTC35m
2026-05-28 SIZ MBW → MBW May 28, 07:20 UTCMay 28, 07:35 UTC15m
2026-05-28 SIZ MBW → MBW May 28, 05:15 UTCMay 28, 05:35 UTC20m
2026-05-25 SIZ - May 25, 07:10 UTCMay 25, 07:25 UTC15m
2026-05-25 SIZ MBW → MBW May 25, 05:10 UTCMay 25, 05:35 UTC25m
2026-05-25 SIZ MBW → MBW May 25, 04:10 UTCMay 25, 04:40 UTC30m
2026-05-24 SIZ MBW → MBW May 24, 06:55 UTCMay 24, 07:50 UTC55m
2026-05-24 SIZ MBW → MBW May 24, 05:15 UTCMay 24, 05:55 UTC40m
2026-05-24 SIZ - May 24, 03:30 UTCMay 24, 04:10 UTC40m
2026-05-24 SIZ - May 24, 00:05 UTCMay 24, 00:30 UTC25m
2026-05-23 SIZ MBW → MBW May 23, 07:50 UTCMay 23, 08:40 UTC50m
2026-05-23 SIZ MBW → MBW May 23, 06:40 UTCMay 23, 07:10 UTC30m
2026-05-22 SIZ MBW → MBW May 22, 22:55 UTCMay 22, 23:40 UTC45m
2026-05-22 SIZ MBW → MBW May 22, 05:50 UTCMay 22, 07:00 UTC1h 10m
2026-05-22 SIZ MBW → MBW May 22, 03:55 UTCMay 22, 04:30 UTC35m
2026-05-22 SIZ MBW → MBW May 22, 02:30 UTCMay 22, 03:05 UTC35m
2026-05-22 SIZ - May 22, 01:05 UTCMay 22, 01:30 UTC25m
2026-05-13 SIZ - May 13, 01:55 UTCMay 13, 03:55 UTC2h 0m
2026-05-13 SIZ - May 13, 00:30 UTCMay 13, 01:20 UTC50m
2026-05-12 SIZ MBW → MBW May 12, 08:25 UTCMay 12, 08:55 UTC30m
2026-05-12 SIZ MBW → MBW May 12, 06:55 UTCMay 12, 07:35 UTC40m
2026-05-12 SIZ - May 12, 05:45 UTCMay 12, 06:05 UTC20m
2026-05-12 SIZ - May 12, 04:50 UTCMay 12, 05:15 UTC25m
2026-05-12 SIZ MBW → MBW May 12, 03:05 UTCMay 12, 04:05 UTC1h 0m
2026-05-11 SIZ - May 11, 09:45 UTCMay 11, 10:00 UTC15m
2026-05-11 SIZ MBW → MEB May 11, 08:35 UTCMay 11, 09:25 UTC50m
2026-05-11 SIZ MBW → MBW May 11, 07:15 UTCMay 11, 07:50 UTC35m
2026-05-11 SIZ MBW → MBW May 11, 04:25 UTCMay 11, 06:05 UTC1h 40m
2026-05-10 SIZ MBW → MBW May 10, 22:30 UTCMay 10, 22:55 UTC25m
2026-05-10 SIZ MBW → MBW May 10, 08:20 UTCMay 10, 08:50 UTC30m
2026-05-10 SIZ MBW → MBW May 10, 06:15 UTCMay 10, 06:50 UTC35m
2026-05-10 SIZ MBW → MBW May 10, 04:15 UTCMay 10, 04:45 UTC30m
2026-05-10 SIZ MBW → MBW May 10, 01:50 UTCMay 10, 02:30 UTC40m
2026-05-09 SIZ MBW → MBW May 9, 21:55 UTCMay 9, 23:35 UTC1h 40m
2026-05-06 SIZ MBW → MBW May 6, 06:15 UTCMay 6, 07:01 UTC45m
2026-05-06 SIZ MBW → MBW May 6, 02:01 UTCMay 6, 03:35 UTC1h 34m
2026-05-06 SIZ MBW → MBW May 6, 00:25 UTCMay 6, 00:50 UTC25m
2026-05-05 SIZ MBW → MBW May 5, 06:35 UTCMay 5, 07:05 UTC30m
2026-05-05 SIZ MBW → MBW May 5, 04:20 UTCMay 5, 05:10 UTC50m
2026-05-04 SIZ - May 4, 01:55 UTCMay 4, 02:45 UTC50m
2026-05-03 SIZ MBW → MBW May 3, 23:55 UTCMay 4, 00:34 UTC40m
2026-05-02 SIZ - May 2, 23:40 UTCMay 2, 23:50 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-SIZ page for operator, model, and routing details .

Mode-S 7C5C59 frequently asked

What is Mode-S code 7C5C59?
7C5C59 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-SIZ.
Where is Mode-S 7C5C59 registered?
Mode-S code 7C5C59 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C5C59 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C5C59, octal 37056131, decimal 8,150,105.
What flights does 7C5C59 operate?
Mode-S 7C5C59 has broadcast 1 distinct callsign, including SIZ.