Apparatus

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sensors Mode-S transponder

7C7A58

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C7A58
Octal
37075130
Decimal
8,157,784
Country
AU
Tail
VH-YGA
Type
C172
No current signal · last broadcast 2h ago
Flights observed
169
Distinct callsigns
1
Country
AU
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 7C7A58.

Country allocation

The ICAO 24-bit address 7C7A58 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
YGA - 169 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 YGA TMW → TMW Jul 14, 04:05 UTCJul 14, 05:00 UTC55m
2026-07-13 YGA TMW → TMW Jul 13, 22:35 UTCJul 13, 23:15 UTC40m
2026-07-13 YGA TMW → TMW Jul 13, 09:20 UTCJul 13, 09:35 UTC15m
2026-07-13 YGA TMW → TMW Jul 13, 08:30 UTCJul 13, 09:05 UTC35m
2026-07-13 YGA TMW → TMW Jul 13, 04:05 UTCJul 13, 04:45 UTC40m
2026-07-13 YGA TMW → TMW Jul 13, 01:20 UTCJul 13, 03:10 UTC1h 50m
2026-07-12 YGA TMW → TMW Jul 12, 22:30 UTCJul 12, 23:30 UTC1h 0m
2026-07-10 YGA TMW → TMW Jul 10, 01:40 UTCJul 10, 02:50 UTC1h 10m
2026-07-09 YGA TMW → TMW Jul 9, 03:00 UTCJul 9, 03:45 UTC45m
2026-07-09 YGA TMW → TMW Jul 9, 00:30 UTCJul 9, 01:40 UTC1h 10m
2026-07-08 YGA TMW → TMW Jul 8, 22:40 UTCJul 8, 23:00 UTC20m
2026-07-08 YGA TMW → TMW Jul 8, 21:50 UTCJul 8, 22:25 UTC35m
2026-07-08 YGA TMW → TMW Jul 8, 03:50 UTCJul 8, 04:30 UTC40m
2026-07-07 YGA TMW → TMW Jul 7, 23:35 UTCJul 8, 00:15 UTC40m
2026-07-07 YGA TMW → TMW Jul 7, 08:25 UTCJul 7, 09:10 UTC45m
2026-07-07 YGA TMW → TMW Jul 7, 06:45 UTCJul 7, 07:20 UTC35m
2026-07-07 YGA TMW → TMW Jul 7, 02:45 UTCJul 7, 03:20 UTC35m
2026-07-07 YGA TMW → TMW Jul 7, 00:10 UTCJul 7, 00:45 UTC35m
2026-07-06 YGA TMW → TMW Jul 6, 08:45 UTCJul 6, 09:20 UTC35m
2026-07-06 YGA TMW → TMW Jul 6, 03:50 UTCJul 6, 04:35 UTC45m
2026-07-06 YGA - Jul 6, 00:25 UTCJul 6, 01:05 UTC40m
2026-07-05 YGA - Jul 5, 22:15 UTCJul 5, 23:50 UTC1h 35m
2026-07-02 YGA TMW → TMW Jul 2, 23:05 UTCJul 2, 23:25 UTC20m
2026-07-02 YGA TMW → TMW Jul 2, 22:20 UTCJul 2, 22:55 UTC35m
2026-07-02 YGA TMW → TMW Jul 2, 03:50 UTCJul 2, 04:40 UTC50m
2026-07-01 YGA - Jul 1, 09:35 UTCJul 1, 09:50 UTC15m
2026-07-01 YGA TMW → TMW Jul 1, 08:35 UTCJul 1, 09:10 UTC35m
2026-07-01 YGA TMW → TMW Jul 1, 01:55 UTCJul 1, 02:50 UTC55m
2026-07-01 YGA - Jul 1, 00:20 UTCJul 1, 01:00 UTC40m
2026-06-30 YGA - Jun 30, 23:20 UTCJun 30, 23:30 UTC10m
2026-06-30 YGA TMW → TMW Jun 30, 22:20 UTCJun 30, 23:05 UTC45m
2026-06-30 YGA TMW → TMW Jun 30, 08:20 UTCJun 30, 09:00 UTC40m
2026-06-30 YGA - Jun 30, 06:05 UTCJun 30, 06:35 UTC30m
2026-06-30 YGA - Jun 30, 04:35 UTCJun 30, 05:20 UTC45m
2026-06-30 YGA TMW → TMW Jun 30, 03:20 UTCJun 30, 04:00 UTC40m
2026-06-29 YGA TMW → TMW Jun 29, 22:30 UTCJun 29, 23:14 UTC45m
2026-06-29 YGA TMW → TMW Jun 29, 09:00 UTCJun 29, 09:40 UTC40m
2026-06-29 YGA TMW → TMW Jun 29, 03:49 UTCJun 29, 04:25 UTC35m
2026-06-29 YGA TMW → TMW Jun 29, 01:50 UTCJun 29, 02:20 UTC30m
2026-06-26 YGA TMW → TMW Jun 26, 04:10 UTCJun 26, 04:45 UTC35m
2026-06-26 YGA TMW → TMW Jun 26, 00:24 UTCJun 26, 02:30 UTC2h 5m
2026-06-25 YGA TMW → TMW Jun 25, 22:14 UTCJun 25, 22:49 UTC35m
2026-06-25 YGA TMW → TMW Jun 25, 08:04 UTCJun 25, 08:55 UTC50m
2026-06-25 YGA TMW → TMW Jun 25, 04:54 UTCJun 25, 06:09 UTC1h 15m
2026-06-25 YGA TMW → TMW Jun 25, 03:24 UTCJun 25, 04:04 UTC40m
2026-06-25 YGA TMW → TMW Jun 25, 00:19 UTCJun 25, 01:14 UTC55m
2026-06-24 YGA TMW → TMW Jun 24, 06:04 UTCJun 24, 06:45 UTC40m
2026-06-24 YGA TMW → TMW Jun 24, 04:20 UTCJun 24, 05:05 UTC45m
2026-06-23 YGA TMW → TMW Jun 23, 03:00 UTCJun 23, 05:15 UTC2h 15m
2026-06-23 YGA TMW → TMW Jun 23, 00:15 UTCJun 23, 01:10 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-YGA page for operator, model, and routing details .

Mode-S 7C7A58 frequently asked

What is Mode-S code 7C7A58?
7C7A58 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YGA.
Where is Mode-S 7C7A58 registered?
Mode-S code 7C7A58 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7A58 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7A58, octal 37075130, decimal 8,157,784.
What flights does 7C7A58 operate?
Mode-S 7C7A58 has broadcast 1 distinct callsign, including YGA.