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sensors Mode-S transponder

7C7F6F

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ZGH · AIRBUS HELICOPTERS EC-135/635 · operated by HELI-AUST WHITSUNDAYS PTY LIMITED

Hex
7C7F6F
Octal
37077557
Decimal
8,159,087
Country
AU
Tail
VH-ZGH
Type
EC35
No current signal · last broadcast 15d ago
Flights observed
337
Distinct callsigns
1
Country
AU
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 7C7F6F.

Country allocation

The ICAO 24-bit address 7C7F6F 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
ZGH - 337 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ZGH - Jul 25, 23:10 UTCJul 25, 23:25 UTC15m
2026-07-25 ZGH - Jul 25, 21:05 UTCJul 25, 21:15 UTC10m
2026-07-25 ZGH - Jul 25, 19:45 UTCJul 25, 20:05 UTC20m
2026-07-25 ZGH - Jul 25, 17:25 UTCJul 25, 18:00 UTC35m
2026-07-25 ZGH - Jul 25, 16:35 UTCJul 25, 16:50 UTC15m
2026-07-25 ZGH - Jul 25, 13:40 UTCJul 25, 13:55 UTC15m
2026-07-25 ZGH - Jul 25, 12:35 UTCJul 25, 12:45 UTC10m
2026-07-25 ZGH - Jul 25, 08:20 UTCJul 25, 08:40 UTC20m
2026-07-25 ZGH - Jul 25, 07:20 UTCJul 25, 07:35 UTC15m
2026-07-25 ZGH - Jul 25, 05:50 UTCJul 25, 06:05 UTC15m
2026-07-25 ZGH - Jul 25, 04:55 UTCJul 25, 05:10 UTC15m
2026-07-25 ZGH - Jul 25, 02:25 UTCJul 25, 02:40 UTC15m
2026-07-24 ZGH - Jul 24, 23:00 UTCJul 24, 23:15 UTC15m
2026-07-24 ZGH - Jul 24, 18:00 UTCJul 24, 18:15 UTC15m
2026-07-24 ZGH - Jul 24, 16:05 UTCJul 24, 16:20 UTC15m
2026-07-24 ZGH - Jul 24, 12:55 UTCJul 24, 13:10 UTC15m
2026-07-24 ZGH - Jul 24, 07:20 UTCJul 24, 07:45 UTC25m
2026-07-24 ZGH - Jul 24, 03:40 UTCJul 24, 04:05 UTC25m
2026-07-24 ZGH - Jul 24, 01:20 UTCJul 24, 01:30 UTC10m
2026-07-23 ZGH - Jul 23, 23:30 UTCJul 23, 23:45 UTC15m
2026-07-23 ZGH - Jul 23, 23:15 UTCJul 23, 23:20 UTC5m
2026-07-23 ZGH - Jul 23, 16:50 UTCJul 23, 17:15 UTC25m
2026-07-23 ZGH - Jul 23, 10:15 UTCJul 23, 11:10 UTC55m
2026-07-23 ZGH - Jul 23, 05:05 UTCJul 23, 05:45 UTC40m
2026-07-22 ZGH - Jul 22, 23:10 UTCJul 22, 23:45 UTC35m
2026-07-22 ZGH - Jul 22, 19:30 UTCJul 22, 20:55 UTC1h 25m
2026-07-22 ZGH - Jul 22, 16:40 UTCJul 22, 17:10 UTC30m
2026-07-22 ZGH - Jul 22, 14:00 UTCJul 22, 14:15 UTC15m
2026-07-22 ZGH - Jul 22, 11:35 UTCJul 22, 11:55 UTC20m
2026-07-22 ZGH - Jul 22, 02:20 UTCJul 22, 02:50 UTC30m
2026-07-22 ZGH - Jul 22, 01:05 UTCJul 22, 01:20 UTC15m
2026-07-22 ZGH - Jul 22, 00:05 UTCJul 22, 00:15 UTC10m
2026-07-21 ZGH - Jul 21, 21:25 UTCJul 21, 21:40 UTC15m
2026-07-21 ZGH - Jul 21, 20:25 UTCJul 21, 20:40 UTC15m
2026-07-21 ZGH - Jul 21, 13:50 UTCJul 21, 14:20 UTC30m
2026-07-21 ZGH - Jul 21, 12:45 UTCJul 21, 13:00 UTC15m
2026-07-21 ZGH - Jul 21, 09:40 UTCJul 21, 10:55 UTC1h 15m
2026-07-21 ZGH - Jul 21, 07:25 UTCJul 21, 07:45 UTC20m
2026-07-21 ZGH - Jul 21, 03:20 UTCJul 21, 03:35 UTC15m
2026-07-21 ZGH - Jul 21, 00:40 UTCJul 21, 01:20 UTC40m
2026-07-20 ZGH - Jul 20, 23:40 UTCJul 20, 23:55 UTC15m
2026-07-20 ZGH - Jul 20, 21:45 UTCJul 20, 22:00 UTC15m
2026-07-20 ZGH - Jul 20, 19:00 UTCJul 20, 19:10 UTC10m
2026-07-20 ZGH - Jul 20, 16:10 UTCJul 20, 16:25 UTC15m
2026-07-20 ZGH - Jul 20, 14:20 UTCJul 20, 15:30 UTC1h 10m
2026-07-20 ZGH - Jul 20, 12:30 UTCJul 20, 12:40 UTC10m
2026-07-20 ZGH - Jul 20, 06:45 UTCJul 20, 07:00 UTC15m
2026-07-20 ZGH - Jul 20, 02:25 UTCJul 20, 04:20 UTC1h 55m
2026-07-19 ZGH - Jul 19, 22:50 UTCJul 19, 23:00 UTC10m
2026-07-19 ZGH - Jul 19, 01:55 UTCJul 19, 02:15 UTC20m

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

Mode-S 7C7F6F frequently asked

What is Mode-S code 7C7F6F?
7C7F6F is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZGH.
Where is Mode-S 7C7F6F registered?
Mode-S code 7C7F6F is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7F6F broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7F6F, octal 37077557, decimal 8,159,087.
What flights does 7C7F6F operate?
Mode-S 7C7F6F has broadcast 1 distinct callsign, including ZGH.