Apparatus

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sensors Mode-S transponder

7C7F7C

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ZGU · CESSNA 172 Skyhawk · operated by ALTOCAP PTY LTD

Hex
7C7F7C
Octal
37077574
Decimal
8,159,100
Country
AU
Tail
VH-ZGU
Type
C172
No current signal · last broadcast 3d ago
Flights observed
79
Distinct callsigns
1
Country
AU
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 7C7F7C.

Country allocation

The ICAO 24-bit address 7C7F7C 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
ZGU - 79 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 ZGU - Jul 10, 23:40 UTCJul 10, 23:50 UTC10m
2026-07-10 ZGU - Jul 10, 05:45 UTCJul 10, 06:20 UTC35m
2026-07-10 ZGU - Jul 10, 03:35 UTCJul 10, 04:55 UTC1h 20m
2026-07-10 ZGU - Jul 10, 01:10 UTCJul 10, 01:50 UTC40m
2026-07-09 ZGU - Jul 9, 23:40 UTCJul 10, 00:10 UTC30m
2026-07-09 ZGU - Jul 9, 04:00 UTCJul 9, 04:40 UTC40m
2026-07-09 ZGU - Jul 9, 00:30 UTCJul 9, 02:45 UTC2h 15m
2026-07-08 ZGU - Jul 8, 23:15 UTCJul 8, 23:50 UTC35m
2026-07-08 ZGU - Jul 8, 05:00 UTCJul 8, 05:40 UTC40m
2026-07-08 ZGU - Jul 8, 03:35 UTCJul 8, 04:10 UTC35m
2026-07-07 ZGU - Jul 7, 05:25 UTCJul 7, 06:40 UTC1h 15m
2026-07-07 ZGU - Jul 7, 03:15 UTCJul 7, 04:30 UTC1h 15m
2026-07-06 ZGU - Jul 6, 06:20 UTCJul 6, 06:55 UTC35m
2026-07-06 ZGU - Jul 6, 04:10 UTCJul 6, 05:25 UTC1h 15m
2026-07-06 ZGU - Jul 6, 02:45 UTCJul 6, 03:10 UTC25m
2026-07-06 ZGU - Jul 6, 01:35 UTCJul 6, 01:50 UTC15m
2026-07-05 ZGU - Jul 5, 23:50 UTCJul 6, 00:35 UTC45m
2026-07-05 ZGU - Jul 5, 22:25 UTCJul 5, 23:05 UTC40m
2026-07-04 ZGU - Jul 4, 01:20 UTCJul 4, 01:50 UTC30m
2026-07-03 ZGU - Jul 3, 23:05 UTCJul 3, 23:25 UTC20m
2026-07-01 ZGU - Jul 1, 04:25 UTCJul 1, 04:55 UTC30m
2026-07-01 ZGU - Jul 1, 03:05 UTCJul 1, 03:45 UTC40m
2026-07-01 ZGU - Jul 1, 00:15 UTCJul 1, 01:40 UTC1h 25m
2026-06-29 ZGU - Jun 29, 03:14 UTCJun 29, 03:49 UTC35m
2026-06-29 ZGU - Jun 29, 00:24 UTCJun 29, 01:10 UTC45m
2026-06-28 ZGU - Jun 28, 22:15 UTCJun 28, 22:39 UTC25m
2026-06-27 ZGU - Jun 27, 04:39 UTCJun 27, 05:44 UTC1h 5m
2026-06-27 ZGU - Jun 27, 02:45 UTCJun 27, 04:00 UTC1h 15m
2026-06-26 ZGU - Jun 26, 05:55 UTCJun 26, 06:50 UTC55m
2026-06-26 ZGU - Jun 26, 03:54 UTCJun 26, 04:45 UTC50m
2026-06-24 ZGU - Jun 24, 00:30 UTCJun 24, 01:19 UTC50m
2026-06-23 ZGU - Jun 23, 22:25 UTCJun 23, 23:14 UTC50m
2026-06-23 ZGU - Jun 23, 04:39 UTCJun 23, 05:34 UTC55m
2026-06-23 ZGU - Jun 23, 02:40 UTCJun 23, 04:00 UTC1h 20m
2026-06-23 ZGU - Jun 23, 00:24 UTCJun 23, 00:54 UTC30m
2026-06-22 ZGU - Jun 22, 22:40 UTCJun 22, 23:10 UTC30m
2026-06-22 ZGU - Jun 22, 04:44 UTCJun 22, 06:00 UTC1h 15m
2026-06-22 ZGU - Jun 22, 01:55 UTCJun 22, 03:50 UTC1h 55m
2026-06-22 ZGU - Jun 22, 01:19 UTCJun 22, 01:40 UTC20m
2026-06-21 ZGU - Jun 21, 22:34 UTCJun 21, 23:55 UTC1h 20m
2026-06-21 ZGU - Jun 21, 22:04 UTCJun 21, 22:29 UTC25m
2026-06-19 ZGU - Jun 19, 23:00 UTCJun 19, 23:54 UTC55m
2026-06-19 ZGU - Jun 19, 01:50 UTCJun 19, 02:09 UTC20m
2026-06-17 ZGU - Jun 17, 05:30 UTCJun 17, 06:30 UTC1h 0m
2026-06-17 ZGU - Jun 17, 03:05 UTCJun 17, 03:45 UTC40m
2026-06-17 ZGU - Jun 17, 01:45 UTCJun 17, 02:10 UTC25m
2026-06-16 ZGU - Jun 16, 23:45 UTCJun 17, 00:50 UTC1h 5m
2026-06-16 ZGU - Jun 16, 05:10 UTCJun 16, 05:59 UTC50m
2026-06-16 ZGU - Jun 16, 03:15 UTCJun 16, 03:50 UTC35m
2026-06-16 ZGU - Jun 16, 00:15 UTCJun 16, 01:00 UTC45m

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

Mode-S 7C7F7C frequently asked

What is Mode-S code 7C7F7C?
7C7F7C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZGU.
Where is Mode-S 7C7F7C registered?
Mode-S code 7C7F7C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7F7C broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7F7C, octal 37077574, decimal 8,159,100.
What flights does 7C7F7C operate?
Mode-S 7C7F7C has broadcast 1 distinct callsign, including ZGU.