Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 11h ago
Flights observed
147
Distinct callsigns
1
Country
AU
Last broadcast
11h 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 - 147 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 YGN TMW → TMW Jul 22, 02:20 UTCJul 22, 03:05 UTC45m
2026-07-21 YGN TMW → TMW Jul 21, 22:05 UTCJul 22, 00:25 UTC2h 20m
2026-07-21 YGN TMW → TMW Jul 21, 01:20 UTCJul 21, 02:00 UTC40m
2026-07-20 YGN TMW → TMW Jul 20, 03:40 UTCJul 20, 04:35 UTC55m
2026-07-20 YGN TMW → TMW Jul 20, 00:20 UTCJul 20, 01:10 UTC50m
2026-07-19 YGN TMW → TMW Jul 19, 21:55 UTCJul 19, 22:35 UTC40m
2026-07-17 YGN TMW → TMW Jul 17, 05:55 UTCJul 17, 06:40 UTC45m
2026-07-17 YGN TMW → TMW Jul 17, 04:29 UTCJul 17, 05:15 UTC45m
2026-07-17 YGN TMW → TMW Jul 17, 00:20 UTCJul 17, 01:05 UTC45m
2026-07-16 YGN TMW → TMW Jul 16, 22:05 UTCJul 16, 22:40 UTC35m
2026-07-16 YGN TMW → TMW Jul 16, 05:15 UTCJul 16, 05:50 UTC35m
2026-07-16 YGN TMW → TMW Jul 16, 02:55 UTCJul 16, 03:40 UTC45m
2026-07-15 YGN TMW → TMW Jul 15, 21:50 UTCJul 16, 00:25 UTC2h 35m
2026-07-15 YGN TMW → TMW Jul 15, 02:30 UTCJul 15, 03:20 UTC50m
2026-07-15 YGN TMW → TMW Jul 15, 00:15 UTCJul 15, 01:00 UTC45m
2026-07-14 YGN TMW → TMW Jul 14, 22:10 UTCJul 14, 22:50 UTC39m
2026-07-14 YGN - Jul 14, 06:45 UTCJul 14, 07:30 UTC45m
2026-07-14 YGN - Jul 14, 05:00 UTCJul 14, 05:55 UTC55m
2026-07-13 YGN TMW → TMW Jul 13, 23:40 UTCJul 14, 00:25 UTC45m
2026-07-13 YGN TMW → TMW Jul 13, 22:25 UTCJul 13, 23:00 UTC35m
2026-07-13 YGN TMW → TMW Jul 13, 02:25 UTCJul 13, 03:01 UTC35m
2026-07-13 YGN TMW → TMW Jul 13, 00:25 UTCJul 13, 01:05 UTC40m
2026-07-12 YGN TMW → TMW Jul 12, 22:00 UTCJul 12, 22:50 UTC50m
2026-07-10 YGN TMW → TMW Jul 10, 04:00 UTCJul 10, 04:35 UTC35m
2026-07-09 YGN TMW → TMW Jul 9, 02:50 UTCJul 9, 03:35 UTC45m
2026-07-09 YGN TMW → TMW Jul 9, 00:35 UTCJul 9, 02:00 UTC1h 25m
2026-07-08 YGN TMW → TMW Jul 8, 21:55 UTCJul 8, 22:35 UTC40m
2026-07-08 YGN GUH → TMW Jul 8, 04:55 UTCJul 8, 05:20 UTC25m
2026-07-08 YGN - Jul 8, 03:30 UTCJul 8, 04:20 UTC50m
2026-07-08 YGN TMW → TMW Jul 8, 00:35 UTCJul 8, 01:20 UTC45m
2026-07-07 YGN TMW → TMW Jul 7, 21:45 UTCJul 7, 22:25 UTC40m
2026-07-07 YGN TMW → TMW Jul 7, 11:10 UTCJul 7, 11:55 UTC45m
2026-07-07 YGN TMW → TMW Jul 7, 02:20 UTCJul 7, 03:30 UTC1h 10m
2026-07-07 YGN TMW → TMW Jul 7, 00:10 UTCJul 7, 01:05 UTC55m
2026-07-06 YGN TMW → TMW Jul 6, 11:40 UTCJul 6, 12:20 UTC40m
2026-07-06 YGN TMW → TMW Jul 6, 06:50 UTCJul 6, 07:25 UTC35m
2026-07-06 YGN TMW → TMW Jul 6, 05:05 UTCJul 6, 05:45 UTC40m
2026-07-06 YGN TMW → TMW Jul 6, 03:15 UTCJul 6, 03:50 UTC35m
2026-07-06 YGN TMW → TMW Jul 6, 00:30 UTCJul 6, 01:05 UTC35m
2026-07-05 YGN TMW → TMW Jul 5, 22:30 UTCJul 5, 23:15 UTC45m
2026-07-02 YGN - Jul 2, 00:25 UTCJul 2, 01:05 UTC40m
2026-06-29 YGN - Jun 29, 04:30 UTCJun 29, 04:45 UTC15m
2026-06-29 YGN - Jun 29, 02:50 UTCJun 29, 03:14 UTC25m
2026-06-29 YGN - Jun 29, 00:39 UTCJun 29, 01:29 UTC50m
2026-06-16 YGN JAD → JAD Jun 16, 08:05 UTCJun 16, 09:15 UTC1h 10m
2026-06-16 YGN JAD → JAD Jun 16, 02:00 UTCJun 16, 03:00 UTC1h 0m
2026-06-15 YGN JAD → JAD Jun 15, 05:30 UTCJun 15, 06:00 UTC30m
2026-06-14 YGN JAD → JAD Jun 14, 03:00 UTCJun 14, 03:55 UTC55m
2026-06-14 YGN JAD → JAD Jun 14, 00:25 UTCJun 14, 01:05 UTC40m
2026-06-13 YGN JAD → JAD Jun 13, 07:55 UTCJun 13, 09:00 UTC1h 5m

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 11h 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.