Apparatus

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sensors Mode-S transponder

7C0B0F

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-CGX · DAHER Kodiak 100 · operated by HELICOPTER LOGISTICS PTY LTD

Hex
7C0B0F
Octal
37005417
Decimal
8,129,295
Country
AU
Tail
VH-CGX
Type
K100
No current signal · last broadcast 18h ago
Flights observed
8
Distinct callsigns
1
Country
AU
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 7C0B0F.

Country allocation

The ICAO 24-bit address 7C0B0F 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
BD681 - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 BD681 - Apr 14, 09:15 UTCApr 14, 09:25 UTC10m
2026-04-14 BD681 - Apr 14, 06:15 UTCApr 14, 06:25 UTC10m
2026-04-14 BD681 - Apr 14, 05:15 UTCApr 14, 05:30 UTC15m
2026-04-13 BD681 - Apr 13, 22:45 UTCApr 13, 23:00 UTC15m
2026-04-13 BD681 - Apr 13, 07:40 UTCApr 13, 07:55 UTC15m
2026-04-13 BD681 - Apr 13, 05:10 UTCApr 13, 05:35 UTC25m
2026-04-13 BD681 - Apr 13, 01:50 UTCApr 13, 02:05 UTC15m
2026-04-13 BD681 - Apr 13, 00:25 UTCApr 13, 00:40 UTC15m

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

Mode-S 7C0B0F frequently asked

What is Mode-S code 7C0B0F?
7C0B0F is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-CGX.
Where is Mode-S 7C0B0F registered?
Mode-S code 7C0B0F is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C0B0F broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C0B0F, octal 37005417, decimal 8,129,295.
What flights does 7C0B0F operate?
Mode-S 7C0B0F has broadcast 1 distinct callsign, including BD681.