Apparatus

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sensors Mode-S transponder

7C7A6C

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-YGU · CESSNA 172 Skyhawk · operated by SINGAPORE FLYING COLLEGE PTE LTD

Hex
7C7A6C
Octal
37075154
Decimal
8,157,804
Country
AU
Tail
VH-YGU
Type
C172
No current signal · last broadcast Jul 25, 05:50 UTC
Flights observed
213
Distinct callsigns
1
Country
AU
Last broadcast
Jul 25, 05:50 UTC

Last known position

Most recent position reported by Mode-S 7C7A6C.

Country allocation

The ICAO 24-bit address 7C7A6C 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
YGU - 213 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 YGU - Jul 25, 05:10 UTCJul 25, 05:40 UTC30m
2026-07-25 YGU - Jul 25, 02:55 UTCJul 25, 03:55 UTC1h 0m
2026-07-24 YGU JAD → JAD Jul 24, 05:30 UTCJul 24, 06:30 UTC1h 0m
2026-07-24 YGU JAD → JAD Jul 24, 03:45 UTCJul 24, 04:15 UTC30m
2026-07-23 YGU JAD → JAD Jul 23, 08:00 UTCJul 23, 08:30 UTC30m
2026-07-23 YGU JAD → JAD Jul 23, 05:40 UTCJul 23, 06:40 UTC1h 0m
2026-07-23 YGU JAD → JAD Jul 23, 02:10 UTCJul 23, 04:00 UTC1h 50m
2026-07-22 YGU JAD → JAD Jul 22, 23:55 UTCJul 23, 00:25 UTC30m
2026-07-21 YGU JAD → JAD Jul 21, 00:00 UTCJul 21, 00:45 UTC45m
2026-07-20 YGU JAD → JAD Jul 20, 10:45 UTCJul 20, 11:45 UTC1h 0m
2026-07-20 YGU JAD → JAD Jul 20, 08:30 UTCJul 20, 09:05 UTC35m
2026-07-20 YGU JAD → JAD Jul 20, 04:15 UTCJul 20, 06:50 UTC2h 35m
2026-07-20 YGU - Jul 20, 01:35 UTCJul 20, 02:15 UTC40m
2026-07-20 YGU - Jul 20, 00:00 UTCJul 20, 00:35 UTC35m
2026-07-19 YGU JAD → JAD Jul 19, 05:40 UTCJul 19, 06:45 UTC1h 5m
2026-07-19 YGU JAD → JAD Jul 19, 02:35 UTCJul 19, 03:15 UTC40m
2026-07-18 YGU JAD → JAD Jul 18, 10:20 UTCJul 18, 11:10 UTC50m
2026-07-18 YGU JAD → JAD Jul 18, 05:45 UTCJul 18, 06:35 UTC50m
2026-07-18 YGU JAD → JAD Jul 18, 04:20 UTCJul 18, 05:05 UTC45m
2026-07-17 YGU JAD → JAD Jul 17, 05:25 UTCJul 17, 05:55 UTC30m
2026-07-16 YGU JAD → JAD Jul 16, 02:50 UTCJul 16, 03:55 UTC1h 5m
2026-07-15 YGU JAD → JAD Jul 15, 11:40 UTCJul 15, 12:25 UTC45m
2026-07-15 YGU JAD → JAD Jul 15, 08:40 UTCJul 15, 09:20 UTC40m
2026-07-15 YGU JAD → JAD Jul 15, 06:10 UTCJul 15, 06:55 UTC45m
2026-07-09 YGU JAD → JAD Jul 9, 08:45 UTCJul 9, 09:25 UTC40m
2026-07-09 YGU JAD → JAD Jul 9, 06:00 UTCJul 9, 07:20 UTC1h 20m
2026-07-09 YGU JAD → JAD Jul 9, 01:40 UTCJul 9, 02:30 UTC50m
2026-07-08 YGU JAD → JAD Jul 8, 12:15 UTCJul 8, 12:55 UTC40m
2026-07-08 YGU JAD → JAD Jul 8, 11:00 UTCJul 8, 11:20 UTC20m
2026-07-08 YGU JAD → JAD Jul 8, 10:15 UTCJul 8, 10:45 UTC30m
2026-07-08 YGU JAD → JAD Jul 8, 06:30 UTCJul 8, 08:05 UTC1h 35m
2026-07-08 YGU JAD → JAD Jul 8, 02:05 UTCJul 8, 04:00 UTC1h 55m
2026-07-08 YGU JAD → JAD Jul 8, 00:00 UTCJul 8, 00:25 UTC25m
2026-07-07 YGU JAD → JAD Jul 7, 10:35 UTCJul 7, 12:30 UTC1h 55m
2026-07-07 YGU JAD → JAD Jul 7, 06:55 UTCJul 7, 08:30 UTC1h 35m
2026-07-07 YGU JAD → JAD Jul 7, 04:50 UTCJul 7, 05:30 UTC40m
2026-07-07 YGU JAD → JAD Jul 7, 03:20 UTCJul 7, 03:35 UTC15m
2026-07-07 YGU JAD → JAD Jul 7, 02:15 UTCJul 7, 03:00 UTC45m
2026-07-06 YGU JAD → JAD Jul 6, 23:40 UTCJul 7, 00:25 UTC45m
2026-07-06 YGU JAD → JAD Jul 6, 07:40 UTCJul 6, 08:20 UTC40m
2026-07-06 YGU JAD → JAD Jul 6, 05:30 UTCJul 6, 06:15 UTC45m
2026-07-06 YGU JAD → JAD Jul 6, 03:25 UTCJul 6, 03:50 UTC25m
2026-07-06 YGU JAD → JAD Jul 6, 00:25 UTCJul 6, 00:55 UTC30m
2026-07-05 YGU JAD → JAD Jul 5, 00:15 UTCJul 5, 00:50 UTC35m
2026-07-04 YGU JAD → JAD Jul 4, 07:20 UTCJul 4, 08:30 UTC1h 10m
2026-07-04 YGU - Jul 4, 05:45 UTCJul 4, 06:10 UTC25m
2026-07-04 YGU - Jul 4, 04:15 UTCJul 4, 04:40 UTC25m
2026-07-04 YGU JAD → JAD Jul 4, 02:25 UTCJul 4, 03:10 UTC45m
2026-07-03 YGU JAD → JAD Jul 3, 08:30 UTCJul 3, 09:35 UTC1h 5m
2026-07-03 YGU JAD → JAD Jul 3, 05:40 UTCJul 3, 06:35 UTC55m

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

Mode-S 7C7A6C frequently asked

What is Mode-S code 7C7A6C?
7C7A6C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YGU.
Where is Mode-S 7C7A6C registered?
Mode-S code 7C7A6C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7A6C broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7A6C, octal 37075154, decimal 8,157,804.
What flights does 7C7A6C operate?
Mode-S 7C7A6C has broadcast 1 distinct callsign, including YGU.