Apparatus

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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 3h ago
Flights observed
219
Distinct callsigns
1
Country
AU
Last broadcast
3h 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 - 219 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-25 ZGH - Jun 25, 21:20 UTCJun 25, 21:35 UTC15m
2026-06-25 ZGH - Jun 25, 18:34 UTCJun 25, 18:50 UTC15m
2026-06-25 ZGH - Jun 25, 14:20 UTCJun 25, 14:50 UTC30m
2026-06-25 ZGH - Jun 25, 10:59 UTCJun 25, 11:30 UTC30m
2026-06-25 ZGH - Jun 25, 07:49 UTCJun 25, 08:09 UTC20m
2026-06-25 ZGH - Jun 25, 06:50 UTCJun 25, 07:05 UTC15m
2026-06-25 ZGH - Jun 25, 06:00 UTCJun 25, 06:14 UTC15m
2026-06-25 ZGH - Jun 25, 02:54 UTCJun 25, 03:20 UTC25m
2026-06-25 ZGH - Jun 25, 01:50 UTCJun 25, 02:05 UTC15m
2026-06-24 ZGH - Jun 24, 23:04 UTCJun 24, 23:24 UTC20m
2026-06-24 ZGH - Jun 24, 22:00 UTCJun 24, 22:14 UTC15m
2026-06-24 ZGH - Jun 24, 21:04 UTCJun 24, 21:24 UTC20m
2026-06-24 ZGH - Jun 24, 20:49 UTCJun 24, 21:00 UTC10m
2026-06-24 ZGH - Jun 24, 11:24 UTCJun 24, 11:39 UTC15m
2026-06-24 ZGH - Jun 24, 08:45 UTCJun 24, 09:15 UTC30m
2026-06-24 ZGH - Jun 24, 07:10 UTCJun 24, 07:24 UTC15m
2026-06-24 ZGH - Jun 24, 04:24 UTCJun 24, 05:05 UTC40m
2026-06-24 ZGH - Jun 24, 02:30 UTCJun 24, 03:10 UTC40m
2026-06-23 ZGH - Jun 23, 23:59 UTCJun 24, 00:25 UTC25m
2026-06-23 ZGH - Jun 23, 17:50 UTCJun 23, 18:04 UTC15m
2026-06-23 ZGH - Jun 23, 14:49 UTCJun 23, 14:59 UTC10m
2026-06-23 ZGH - Jun 23, 11:24 UTCJun 23, 12:15 UTC50m
2026-06-23 ZGH - Jun 23, 09:49 UTCJun 23, 10:10 UTC20m
2026-06-23 ZGH - Jun 23, 06:49 UTCJun 23, 07:25 UTC35m
2026-06-23 ZGH - Jun 23, 00:39 UTCJun 23, 00:54 UTC15m
2026-06-22 ZGH - Jun 22, 23:50 UTCJun 23, 00:00 UTC10m
2026-06-22 ZGH - Jun 22, 22:40 UTCJun 22, 23:05 UTC25m
2026-06-22 ZGH - Jun 22, 18:24 UTCJun 22, 19:09 UTC45m
2026-06-22 ZGH - Jun 22, 17:29 UTCJun 22, 17:50 UTC20m
2026-06-22 ZGH - Jun 22, 09:49 UTCJun 22, 10:10 UTC20m
2026-06-22 ZGH - Jun 22, 08:54 UTCJun 22, 09:19 UTC25m
2026-06-22 ZGH - Jun 22, 08:00 UTCJun 22, 08:10 UTC10m
2026-06-20 ZGH - Jun 20, 09:54 UTCJun 20, 10:04 UTC10m
2026-06-19 ZGH - Jun 19, 10:04 UTCJun 19, 10:14 UTC10m
2026-06-17 ZGH - Jun 17, 02:15 UTCJun 17, 03:00 UTC45m
2026-06-16 ZGH - Jun 16, 23:55 UTCJun 17, 00:10 UTC15m
2026-06-16 ZGH - Jun 16, 22:35 UTCJun 16, 22:55 UTC20m
2026-06-16 ZGH - Jun 16, 20:10 UTCJun 16, 20:35 UTC25m
2026-06-16 ZGH - Jun 16, 15:40 UTCJun 16, 16:10 UTC30m
2026-06-16 ZGH - Jun 16, 11:10 UTCJun 16, 12:00 UTC50m
2026-06-16 ZGH - Jun 16, 07:20 UTCJun 16, 07:40 UTC20m
2026-06-16 ZGH - Jun 16, 04:25 UTCJun 16, 05:00 UTC35m
2026-06-16 ZGH - Jun 16, 01:45 UTCJun 16, 02:00 UTC15m
2026-06-15 ZGH - Jun 15, 22:45 UTCJun 15, 23:19 UTC35m
2026-06-15 ZGH - Jun 15, 17:25 UTCJun 15, 17:59 UTC35m
2026-06-15 ZGH - Jun 15, 14:50 UTCJun 15, 15:04 UTC15m
2026-06-15 ZGH - Jun 15, 10:30 UTCJun 15, 11:15 UTC45m
2026-06-15 ZGH - Jun 15, 10:00 UTCJun 15, 10:24 UTC25m
2026-06-15 ZGH - Jun 15, 05:10 UTCJun 15, 05:30 UTC20m
2026-06-15 ZGH - Jun 15, 01:40 UTCJun 15, 02:15 UTC35m

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 3h 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.