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sensors Mode-S transponder

7C4A31

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-OXV · PIPER PA-44 Seminole · operated by OXFORD AVIATION ACADEMY (AUSTRALIA) PTY LTD

Hex
7C4A31
Octal
37045061
Decimal
8,145,457
Country
AU
Tail
VH-OXV
Type
PA44
No current signal · last broadcast 10h ago
Flights observed
106
Distinct callsigns
1
Country
AU
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 7C4A31.

Country allocation

The ICAO 24-bit address 7C4A31 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
OXV - 106 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OXV MBW → MBW Jul 14, 04:55 UTCJul 14, 05:50 UTC55m
2026-07-14 OXV MBW → MBW Jul 14, 01:55 UTCJul 14, 02:55 UTC1h 0m
2026-07-13 OXV MBW → MBW Jul 13, 05:40 UTCJul 13, 06:30 UTC50m
2026-07-10 OXV MBW → MBW Jul 10, 03:05 UTCJul 10, 04:15 UTC1h 10m
2026-07-10 OXV MBW → MBW Jul 10, 00:30 UTCJul 10, 02:00 UTC1h 30m
2026-07-09 OXV MBW → MBW Jul 9, 07:00 UTCJul 9, 08:10 UTC1h 10m
2026-07-09 OXV - Jul 9, 03:55 UTCJul 9, 04:40 UTC45m
2026-07-09 OXV - Jul 9, 02:15 UTCJul 9, 02:50 UTC35m
2026-07-09 OXV MBW → MEB Jul 9, 01:55 UTCJul 9, 02:10 UTC15m
2026-07-08 OXV MBW → MBW Jul 8, 06:15 UTCJul 8, 07:10 UTC55m
2026-07-08 OXV MBW → MBW Jul 8, 01:10 UTCJul 8, 03:25 UTC2h 15m
2026-07-06 OXV - Jul 6, 05:45 UTCJul 6, 06:35 UTC50m
2026-07-06 OXV - Jul 6, 00:10 UTCJul 6, 00:45 UTC35m
2026-07-05 OXV MEB → MBW Jul 5, 06:25 UTCJul 5, 06:40 UTC15m
2026-07-05 OXV MBW → MEB Jul 5, 03:55 UTCJul 5, 06:20 UTC2h 25m
2026-07-04 OXV MBW → MBW Jul 4, 04:45 UTCJul 4, 06:10 UTC1h 25m
2026-07-04 OXV MBW → MBW Jul 4, 00:25 UTCJul 4, 02:45 UTC2h 20m
2026-07-03 OXV MBW → MBW Jul 3, 02:40 UTCJul 3, 03:30 UTC50m
2026-07-02 OXV MBW → MBW Jul 2, 04:05 UTCJul 2, 04:45 UTC40m
2026-07-02 OXV MEB → MBW Jul 2, 00:55 UTCJul 2, 02:35 UTC1h 40m
2026-07-02 OXV MBW → MEB Jul 2, 00:40 UTCJul 2, 00:50 UTC10m
2026-07-01 OXV MBW → MBW Jul 1, 03:50 UTCJul 1, 04:55 UTC1h 5m
2026-07-01 OXV - Jul 1, 00:35 UTCJul 1, 01:20 UTC45m
2026-06-30 OXV - Jun 30, 23:25 UTCJul 1, 00:00 UTC35m
2026-06-30 OXV MBW → MEB Jun 30, 23:05 UTCJun 30, 23:20 UTC15m
2026-06-30 OXV MBW → MBW Jun 30, 06:55 UTCJun 30, 08:55 UTC2h 0m
2026-06-28 OXV MBW → MBW Jun 28, 23:34 UTCJun 28, 23:39 UTC5m
2026-06-26 OXV MBW → MBW Jun 26, 06:25 UTCJun 26, 06:29 UTC5m
2026-06-17 OXV MBW → MBW Jun 17, 06:45 UTCJun 17, 07:20 UTC35m
2026-06-16 OXV MBW → MBW Jun 16, 22:50 UTCJun 17, 01:30 UTC2h 40m
2026-06-16 OXV MBW → MBW Jun 16, 05:00 UTCJun 16, 05:50 UTC50m
2026-06-16 OXV - Jun 16, 03:10 UTCJun 16, 04:00 UTC50m
2026-06-16 OXV - Jun 16, 02:04 UTCJun 16, 02:34 UTC30m
2026-06-16 OXV MBW → MEB Jun 16, 01:45 UTCJun 16, 01:55 UTC10m
2026-06-15 OXV - Jun 15, 06:15 UTCJun 15, 06:40 UTC25m
2026-06-15 OXV - Jun 15, 04:45 UTCJun 15, 05:35 UTC50m
2026-06-12 OXV MBW → MBW Jun 12, 23:50 UTCJun 13, 00:55 UTC1h 5m
2026-06-12 OXV - Jun 12, 05:20 UTCJun 12, 05:45 UTC25m
2026-06-12 OXV - Jun 12, 03:50 UTCJun 12, 04:20 UTC30m
2026-06-12 OXV - Jun 12, 03:25 UTCJun 12, 03:35 UTC10m
2026-06-12 OXV MBW → MBW Jun 12, 01:25 UTCJun 12, 02:10 UTC45m
2026-06-11 OXV MBW → MBW Jun 11, 23:00 UTCJun 12, 00:15 UTC1h 15m
2026-06-11 OXV - Jun 11, 06:00 UTCJun 11, 07:35 UTC1h 35m
2026-06-11 OXV - Jun 11, 04:50 UTCJun 11, 05:15 UTC25m
2026-06-11 OXV MBW → MBW Jun 11, 01:15 UTCJun 11, 01:45 UTC30m
2026-06-10 OXV - Jun 10, 09:00 UTCJun 10, 10:00 UTC1h 0m
2026-06-10 OXV - Jun 10, 07:35 UTCJun 10, 08:25 UTC50m
2026-06-09 OXV MBW → MBW Jun 9, 22:15 UTCJun 9, 23:20 UTC1h 5m
2026-06-09 OXV - Jun 9, 05:30 UTCJun 9, 06:05 UTC35m
2026-06-09 OXV - Jun 9, 00:10 UTCJun 9, 01:05 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-OXV page for operator, model, and routing details .

Mode-S 7C4A31 frequently asked

What is Mode-S code 7C4A31?
7C4A31 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OXV.
Where is Mode-S 7C4A31 registered?
Mode-S code 7C4A31 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4A31 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C4A31, octal 37045061, decimal 8,145,457.
What flights does 7C4A31 operate?
Mode-S 7C4A31 has broadcast 1 distinct callsign, including OXV.