Apparatus

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sensors Mode-S transponder

7C64F5

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-T77 · GUIMBAL G-2 Cabri

Hex
7C64F5
Octal
37062365
Decimal
8,152,309
Country
AU
Tail
VH-T77
Type
G2CA
No current signal · last broadcast 21h ago
Flights observed
9
Distinct callsigns
1
Country
AU
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 7C64F5.

Country allocation

The ICAO 24-bit address 7C64F5 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
T77 - 9 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 T77 - Apr 14, 07:00 UTCApr 14, 07:10 UTC10m
2026-04-14 T77 JAD → JAD Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 T77 - Apr 13, 08:20 UTCApr 13, 08:50 UTC30m
2026-04-13 T77 - Apr 13, 07:55 UTCApr 13, 08:50 UTC55m
2026-04-13 T77 - Apr 13, 07:40 UTCApr 13, 08:15 UTC35m
2026-04-13 T77 JAD → JAD Apr 13, 04:50 UTCApr 13, 06:15 UTC1h 25m
2026-04-13 T77 JAD → JAD Apr 13, 03:10 UTCApr 13, 03:50 UTC40m
2026-04-13 T77 JAD → JAD Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m
2026-04-13 T77 JAD → JAD Apr 13, 00:10 UTCApr 13, 01:25 UTC1h 15m

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-T77 page for operator, model, and routing details .

Mode-S 7C64F5 frequently asked

What is Mode-S code 7C64F5?
7C64F5 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-T77.
Where is Mode-S 7C64F5 registered?
Mode-S code 7C64F5 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C64F5 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C64F5, octal 37062365, decimal 8,152,309.
What flights does 7C64F5 operate?
Mode-S 7C64F5 has broadcast 1 distinct callsign, including T77.