Apparatus

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sensors Mode-S transponder

7C4A22

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C4A22
Octal
37045042
Decimal
8,145,442
Country
AU
Tail
VH-OXG
Type
PA44
No current signal · last broadcast 1d ago
Flights observed
37
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C4A22.

Country allocation

The ICAO 24-bit address 7C4A22 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
OXG - 37 2026-05-29

Recent flights last 37

DateFlightRouteTakeoffLandingDuration
2026-05-29 OXG MBW → MBW May 29, 08:40 UTCMay 29, 10:10 UTC1h 30m
2026-05-29 OXG MBW → MBW May 29, 06:35 UTCMay 29, 07:15 UTC40m
2026-05-29 OXG MBW → MBW May 29, 04:05 UTCMay 29, 04:50 UTC45m
2026-05-28 OXG MBW → MBW May 28, 07:50 UTCMay 28, 09:55 UTC2h 5m
2026-05-26 OXG MBW → MBW May 26, 07:40 UTCMay 26, 08:50 UTC1h 10m
2026-05-25 OXG MEB → MBW May 25, 04:35 UTCMay 25, 06:45 UTC2h 10m
2026-05-25 OXG MBW → MEB May 25, 04:10 UTCMay 25, 04:25 UTC15m
2026-05-24 OXG MBW → MBW May 24, 06:00 UTCMay 24, 06:40 UTC40m
2026-05-24 OXG MBW → MBW May 24, 03:50 UTCMay 24, 04:55 UTC1h 5m
2026-05-24 OXG - May 24, 01:25 UTCMay 24, 02:30 UTC1h 5m
2026-05-24 OXG MBW → XCO May 24, 00:00 UTCMay 24, 00:35 UTC35m
2026-05-22 OXG MBW → MBW May 22, 04:50 UTCMay 22, 06:05 UTC1h 15m
2026-05-22 OXG MBW → MBW May 22, 01:30 UTCMay 22, 02:25 UTC55m
2026-05-21 OXG MBW → MBW May 21, 07:45 UTCMay 21, 09:45 UTC2h 0m
2026-05-21 OXG MBW → MBW May 21, 03:55 UTCMay 21, 05:55 UTC2h 0m
2026-05-21 OXG MBW → MBW May 21, 01:50 UTCMay 21, 02:25 UTC35m
2026-05-20 OXG MBW → MBW May 20, 03:45 UTCMay 20, 04:55 UTC1h 11m
2026-05-19 OXG MBW → MBW May 19, 23:40 UTCMay 20, 00:45 UTC1h 5m
2026-05-19 OXG MBW → MBW May 19, 08:40 UTCMay 19, 10:45 UTC2h 5m
2026-05-18 OXG MBW → MBW May 18, 04:00 UTCMay 18, 06:05 UTC2h 5m
2026-05-13 OXG MBW → MBW May 13, 06:50 UTCMay 13, 08:35 UTC1h 45m
2026-05-13 OXG - May 13, 04:45 UTCMay 13, 05:15 UTC30m
2026-05-13 OXG - May 13, 03:15 UTCMay 13, 03:40 UTC25m
2026-05-13 OXG MBW → MBW May 13, 01:20 UTCMay 13, 02:15 UTC55m
2026-05-12 OXG MBW → MBW May 12, 07:40 UTCMay 12, 10:10 UTC2h 30m
2026-05-12 OXG MBW → MBW May 12, 05:10 UTCMay 12, 06:05 UTC55m
2026-05-08 OXG MBW → MBW May 8, 03:09 UTCMay 8, 04:00 UTC50m
2026-05-06 OXG MBW → MBW May 6, 01:55 UTCMay 6, 02:45 UTC50m
2026-05-05 OXG MBW → MBW May 5, 23:50 UTCMay 6, 00:50 UTC1h 0m
2026-04-30 OXG MBW → MBW Apr 30, 07:50 UTCApr 30, 09:55 UTC2h 5m
2026-04-30 OXG MBW → MBW Apr 30, 02:10 UTCApr 30, 03:15 UTC1h 5m
2026-04-29 OXG - Apr 29, 04:05 UTCApr 29, 06:10 UTC2h 5m
2026-04-29 OXG MBW → MEB Apr 29, 03:40 UTCApr 29, 03:55 UTC15m
2026-04-28 OXG MBW → MBW Apr 28, 03:30 UTCApr 28, 06:00 UTC2h 30m
2026-04-27 OXG MBW → MBW Apr 27, 23:30 UTCApr 28, 01:55 UTC2h 25m
2026-04-23 OXG MBW → MBW Apr 23, 02:20 UTCApr 23, 03:00 UTC40m
2026-04-14 OXG MBW → MBW Apr 14, 06:10 UTCApr 14, 07:00 UTC50m

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

Mode-S 7C4A22 frequently asked

What is Mode-S code 7C4A22?
7C4A22 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OXG.
Where is Mode-S 7C4A22 registered?
Mode-S code 7C4A22 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4A22 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C4A22, octal 37045042, decimal 8,145,442.
What flights does 7C4A22 operate?
Mode-S 7C4A22 has broadcast 1 distinct callsign, including OXG.