Apparatus

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sensors Mode-S transponder

7C46F9

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-OAZ · PIPER PA-32R-300/301/301T · operated by ALPHA AVIATION LIMITED

Hex
7C46F9
Octal
37043371
Decimal
8,144,633
Country
AU
Tail
VH-OAZ
Type
P32R
No current signal · last broadcast Jul 26, 06:50 UTC
Flights observed
42
Distinct callsigns
1
Country
AU
Last broadcast
Jul 26, 06:50 UTC

Last known position

Most recent position reported by Mode-S 7C46F9.

Country allocation

The ICAO 24-bit address 7C46F9 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
OAZ - 42 2026-07-26

Recent flights last 42

DateFlightRouteTakeoffLandingDuration
2026-07-26 OAZ - Jul 26, 06:05 UTCJul 26, 06:50 UTC46m
2026-07-23 OAZ - Jul 23, 00:45 UTCJul 23, 02:00 UTC1h 15m
2026-07-15 OAZ - Jul 15, 09:10 UTCJul 15, 10:15 UTC1h 5m
2026-07-12 OAZ BWU → BWU Jul 12, 23:50 UTCJul 13, 00:45 UTC55m
2026-07-12 OAZ - Jul 12, 08:01 UTCJul 12, 09:05 UTC1h 5m
2026-07-12 OAZ - Jul 12, 00:50 UTCJul 12, 02:01 UTC1h 10m
2026-07-05 OAZ BWU → BWU Jul 5, 00:40 UTCJul 5, 01:40 UTC1h 0m
2026-07-04 OAZ - Jul 4, 06:00 UTCJul 4, 07:05 UTC1h 5m
2026-07-04 OAZ - Jul 4, 03:55 UTCJul 4, 04:40 UTC45m
2026-07-04 OAZ - Jul 4, 02:30 UTCJul 4, 03:05 UTC35m
2026-06-24 OAZ - Jun 24, 06:50 UTCJun 24, 07:30 UTC40m
2026-06-23 OAZ - Jun 23, 21:59 UTCJun 23, 22:40 UTC40m
2026-06-21 OAZ BWU → BWU Jun 21, 23:40 UTCJun 22, 00:44 UTC1h 5m
2026-06-21 OAZ BWU → BWU Jun 21, 04:10 UTCJun 21, 05:04 UTC55m
2026-06-19 OAZ - Jun 19, 23:14 UTCJun 20, 00:24 UTC1h 10m
2026-06-15 OAZ - Jun 15, 23:54 UTCJun 16, 01:04 UTC1h 10m
2026-06-13 OAZ - Jun 13, 22:25 UTCJun 14, 01:05 UTC2h 40m
2026-06-13 OAZ - Jun 13, 04:40 UTCJun 13, 07:35 UTC2h 55m
2026-06-06 OAZ - Jun 6, 22:39 UTCJun 6, 23:50 UTC1h 10m
2026-06-06 OAZ BWU → BWU Jun 6, 06:15 UTCJun 6, 07:25 UTC1h 10m
2026-06-01 OAZ - Jun 1, 01:20 UTCJun 1, 01:50 UTC30m
2026-06-01 OAZ - Jun 1, 00:00 UTCJun 1, 00:30 UTC30m
2026-05-30 OAZ - May 30, 22:45 UTCMay 30, 23:20 UTC35m
2026-05-22 OAZ - May 22, 04:40 UTCMay 22, 05:20 UTC40m
2026-05-22 OAZ - May 22, 01:50 UTCMay 22, 04:00 UTC2h 10m
2026-05-21 OAZ - May 21, 21:05 UTCMay 21, 23:05 UTC2h 0m
2026-05-21 OAZ - May 21, 01:15 UTCMay 21, 01:40 UTC25m
2026-05-20 OAZ BWU → BWU May 20, 23:45 UTCMay 21, 00:40 UTC55m
2026-05-16 OAZ BWU → BWU May 16, 07:31 UTCMay 16, 08:36 UTC1h 5m
2026-05-03 OAZ - May 3, 04:35 UTCMay 3, 05:25 UTC50m
2026-05-03 OAZ - May 3, 03:10 UTCMay 3, 04:00 UTC49m
2026-05-02 OAZ - May 2, 04:25 UTCMay 2, 05:15 UTC50m
2026-05-01 OAZ - May 1, 21:55 UTCMay 1, 22:35 UTC40m
2026-04-27 OAZ - Apr 27, 00:15 UTCApr 27, 00:50 UTC35m
2026-04-26 OAZ - Apr 26, 22:50 UTCApr 26, 23:25 UTC35m
2026-04-25 OAZ - Apr 25, 06:55 UTCApr 25, 07:55 UTC1h 0m
2026-04-25 OAZ - Apr 25, 01:00 UTCApr 25, 02:30 UTC1h 30m
2026-04-16 OAZ - Apr 16, 05:49 UTCApr 16, 06:45 UTC55m
2026-04-16 OAZ - Apr 16, 04:24 UTCApr 16, 05:05 UTC40m
2026-04-13 OAZ - Apr 13, 04:20 UTCApr 13, 04:50 UTC30m
2026-04-13 OAZ - Apr 13, 04:05 UTCApr 13, 04:15 UTC10m
2026-04-13 OAZ - Apr 13, 00:45 UTCApr 13, 01:40 UTC55m

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

Mode-S 7C46F9 frequently asked

What is Mode-S code 7C46F9?
7C46F9 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OAZ.
Where is Mode-S 7C46F9 registered?
Mode-S code 7C46F9 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C46F9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 06:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C46F9, octal 37043371, decimal 8,144,633.
What flights does 7C46F9 operate?
Mode-S 7C46F9 has broadcast 1 distinct callsign, including OAZ.