sensors Mode-S transponder

7C085F

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-BXT · PIPER PA-32 · operated by BORRUD, Paul Curtis

Hex
7C085F
Octal
37004137
Decimal
8,128,607
Country
AU
Tail
VH-BXT
Type
PA32
No current signal · last broadcast 23h ago
Flights observed
2
Distinct callsigns
1
Country
AU
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 7C085F.

Country allocation

The ICAO 24-bit address 7C085F 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
BXT - 2 2026-04-14

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-14 BXT - Apr 14, 06:00 UTCApr 14, 06:25 UTC25m
2026-04-13 BXT - Apr 13, 02:05 UTCApr 13, 02:15 UTC10m

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

Mode-S 7C085F frequently asked

What is Mode-S code 7C085F?
7C085F is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-BXT.
Where is Mode-S 7C085F registered?
Mode-S code 7C085F is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C085F broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C085F, octal 37004137, decimal 8,128,607.
What flights does 7C085F operate?
Mode-S 7C085F has broadcast 1 distinct callsign, including BXT.