Apparatus

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sensors Mode-S transponder

7C7A65

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C7A65
Octal
37075145
Decimal
8,157,797
Country
AU
Tail
VH-YGN
Type
C172
No current signal · last broadcast 1d ago
Flights observed
85
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C7A65.

Country allocation

The ICAO 24-bit address 7C7A65 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
YGN - 85 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-06 YGN - Jun 6, 08:20 UTCJun 6, 08:40 UTC20m
2026-06-06 YGN - Jun 6, 06:00 UTCJun 6, 07:50 UTC1h 50m
2026-06-06 YGN - Jun 6, 03:05 UTCJun 6, 03:45 UTC40m
2026-06-06 YGN - Jun 6, 01:00 UTCJun 6, 02:20 UTC1h 20m
2026-06-05 YGN JAD → JAD Jun 5, 11:00 UTCJun 5, 11:20 UTC20m
2026-06-05 YGN JAD → JAD Jun 5, 10:20 UTCJun 5, 10:45 UTC25m
2026-06-05 YGN JAD → JAD Jun 5, 07:25 UTCJun 5, 09:00 UTC1h 35m
2026-06-05 YGN JAD → JAD Jun 5, 04:55 UTCJun 5, 06:00 UTC1h 5m
2026-06-05 YGN JAD → JAD Jun 5, 03:00 UTCJun 5, 03:45 UTC45m
2026-06-05 YGN JAD → JAD Jun 5, 00:10 UTCJun 5, 02:15 UTC2h 5m
2026-06-04 YGN JAD → JAD Jun 4, 11:30 UTCJun 4, 12:10 UTC40m
2026-06-04 YGN JAD → JAD Jun 4, 10:10 UTCJun 4, 10:50 UTC40m
2026-06-04 YGN - Jun 4, 07:45 UTCJun 4, 08:30 UTC45m
2026-06-04 YGN - Jun 4, 06:10 UTCJun 4, 06:55 UTC45m
2026-06-04 YGN JAD → JAD Jun 4, 04:15 UTCJun 4, 04:30 UTC15m
2026-06-04 YGN JAD → JAD Jun 4, 03:25 UTCJun 4, 04:00 UTC35m
2026-06-04 YGN JAD → JAD Jun 4, 01:45 UTCJun 4, 02:05 UTC20m
2026-06-04 YGN JAD → JAD Jun 4, 00:50 UTCJun 4, 01:35 UTC45m
2026-06-03 YGN JAD → JAD Jun 3, 09:00 UTCJun 3, 09:30 UTC30m
2026-06-03 YGN JAD → JAD Jun 3, 06:50 UTCJun 3, 07:15 UTC25m
2026-06-03 YGN - Jun 3, 04:10 UTCJun 3, 04:45 UTC35m
2026-06-03 YGN - Jun 3, 02:25 UTCJun 3, 03:10 UTC45m
2026-06-03 YGN JAD → JAD Jun 3, 00:00 UTCJun 3, 00:35 UTC35m
2026-06-02 YGN JAD → JAD Jun 2, 07:55 UTCJun 2, 08:35 UTC40m
2026-06-02 YGN JAD → JAD Jun 2, 04:00 UTCJun 2, 06:35 UTC2h 35m
2026-06-02 YGN JAD → JAD Jun 2, 00:40 UTCJun 2, 01:10 UTC30m
2026-06-01 YGN JAD → JAD Jun 1, 05:50 UTCJun 1, 08:35 UTC2h 45m
2026-05-30 YGN JAD → JAD May 30, 06:45 UTCMay 30, 07:30 UTC45m
2026-05-30 YGN JAD → JAD May 30, 03:00 UTCMay 30, 05:25 UTC2h 25m
2026-05-29 YGN JAD → JAD May 29, 08:35 UTCMay 29, 09:10 UTC35m
2026-05-29 YGN - May 29, 07:00 UTCMay 29, 07:30 UTC30m
2026-05-29 YGN - May 29, 04:55 UTCMay 29, 06:00 UTC1h 5m
2026-05-28 YGN JAD → JAD May 28, 08:00 UTCMay 28, 08:40 UTC40m
2026-05-28 YGN JAD → JAD May 28, 06:25 UTCMay 28, 06:45 UTC20m
2026-05-28 YGN JAD → JAD May 28, 01:15 UTCMay 28, 01:50 UTC35m
2026-05-27 YGN - May 27, 07:05 UTCMay 27, 08:05 UTC1h 0m
2026-05-27 YGN JAD → JAD May 27, 04:24 UTCMay 27, 06:04 UTC1h 40m
2026-05-27 YGN JAD → JAD May 27, 00:55 UTCMay 27, 01:34 UTC40m
2026-05-26 YGN JAD → JAD May 26, 08:45 UTCMay 26, 09:25 UTC40m
2026-05-25 YGN JAD → JAD May 25, 05:50 UTCMay 25, 06:10 UTC20m
2026-05-25 YGN JAD → JAD May 25, 05:05 UTCMay 25, 05:35 UTC30m
2026-05-25 YGN JAD → JAD May 25, 02:00 UTCMay 25, 02:40 UTC40m
2026-05-23 YGN JAD → JAD May 23, 02:30 UTCMay 23, 03:20 UTC50m
2026-05-23 YGN JAD → JAD May 23, 00:30 UTCMay 23, 01:00 UTC30m
2026-05-22 YGN JAD → JAD May 22, 08:20 UTCMay 22, 09:00 UTC40m
2026-05-22 YGN JAD → JAD May 22, 06:05 UTCMay 22, 06:45 UTC40m
2026-05-22 YGN JAD → JAD May 22, 03:00 UTCMay 22, 03:10 UTC10m
2026-05-22 YGN JAD → JAD May 22, 01:15 UTCMay 22, 01:50 UTC35m
2026-05-13 YGN JAD → JAD May 13, 07:10 UTCMay 13, 07:55 UTC45m
2026-05-13 YGN JAD → JAD May 13, 01:20 UTCMay 13, 02:05 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-YGN page for operator, model, and routing details .

Mode-S 7C7A65 frequently asked

What is Mode-S code 7C7A65?
7C7A65 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YGN.
Where is Mode-S 7C7A65 registered?
Mode-S code 7C7A65 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7A65 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7A65, octal 37075145, decimal 8,157,797.
What flights does 7C7A65 operate?
Mode-S 7C7A65 has broadcast 1 distinct callsign, including YGN.