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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 9h ago
Flights observed
91
Distinct callsigns
1
Country
AU
Last broadcast
9h 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 - 91 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OXG MBW → MBW Jul 14, 07:55 UTCJul 14, 10:40 UTC2h 45m
2026-07-14 OXG MBW → MBW Jul 14, 05:55 UTCJul 14, 06:50 UTC55m
2026-07-14 OXG MBW → MBW Jul 14, 03:20 UTCJul 14, 04:25 UTC1h 5m
2026-07-13 OXG MBW → MBW Jul 13, 07:25 UTCJul 13, 09:50 UTC2h 25m
2026-07-13 OXG MBW → MBW Jul 13, 03:25 UTCJul 13, 04:25 UTC1h 0m
2026-06-28 OXG MBW → MBW Jun 28, 03:05 UTCJun 28, 04:05 UTC1h 0m
2026-06-25 OXG MBW → MBW Jun 25, 03:34 UTCJun 25, 04:25 UTC50m
2026-06-24 OXG MBW → MBW Jun 24, 07:24 UTCJun 24, 09:19 UTC1h 55m
2026-06-24 OXG MBW → MBW Jun 24, 03:29 UTCJun 24, 04:39 UTC1h 10m
2026-06-24 OXG MBW → MBW Jun 24, 00:49 UTCJun 24, 01:55 UTC1h 5m
2026-06-23 OXG - Jun 23, 02:45 UTCJun 23, 03:29 UTC45m
2026-06-23 OXG MBW → MBW Jun 23, 01:04 UTCJun 23, 01:59 UTC55m
2026-06-22 OXG MBW → MBW Jun 22, 07:00 UTCJun 22, 09:54 UTC2h 55m
2026-06-21 OXG MBW → MBW Jun 21, 23:44 UTCJun 22, 00:29 UTC45m
2026-06-21 OXG MBW → MBW Jun 21, 02:40 UTCJun 21, 03:40 UTC1h 0m
2026-06-20 OXG MBW → MBW Jun 20, 23:55 UTCJun 21, 00:55 UTC1h 0m
2026-06-20 OXG MBW → MBW Jun 20, 04:14 UTCJun 20, 04:24 UTC10m
2026-06-20 OXG MBW → MBW Jun 20, 03:44 UTCJun 20, 04:09 UTC25m
2026-06-19 OXG MBW → MBW Jun 19, 00:49 UTCJun 19, 01:24 UTC35m
2026-06-18 OXG MBW → MBW Jun 18, 04:10 UTCJun 18, 05:30 UTC1h 20m
2026-06-18 OXG MBW → MBW Jun 18, 00:10 UTCJun 18, 00:20 UTC10m
2026-06-17 OXG MBW → MBW Jun 17, 06:10 UTCJun 17, 08:40 UTC2h 30m
2026-06-17 OXG MBW → MBW Jun 17, 02:10 UTCJun 17, 03:25 UTC1h 15m
2026-06-16 OXG MBW → MBW Jun 16, 23:10 UTCJun 17, 00:15 UTC1h 5m
2026-06-16 OXG - Jun 16, 03:50 UTCJun 16, 05:59 UTC2h 10m
2026-06-16 OXG MBW → MEB Jun 16, 03:30 UTCJun 16, 03:39 UTC10m
2026-06-16 OXG - Jun 16, 01:15 UTCJun 16, 02:00 UTC45m
2026-06-15 OXG - Jun 15, 23:39 UTCJun 16, 00:05 UTC25m
2026-06-15 OXG MBW → MEB Jun 15, 23:15 UTCJun 15, 23:30 UTC15m
2026-06-15 OXG MBW → MBW Jun 15, 05:40 UTCJun 15, 05:45 UTC5m
2026-06-15 OXG MBW → MBW Jun 15, 04:20 UTCJun 15, 05:35 UTC1h 15m
2026-06-13 OXG MBW → MBW Jun 13, 03:30 UTCJun 13, 04:40 UTC1h 10m
2026-06-12 OXG MBW → MBW Jun 12, 06:30 UTCJun 12, 07:25 UTC55m
2026-06-12 OXG - Jun 12, 01:55 UTCJun 12, 03:05 UTC1h 10m
2026-06-12 OXG MBW → MBW Jun 12, 00:20 UTCJun 12, 01:00 UTC40m
2026-06-11 OXG MBW → MBW Jun 11, 07:50 UTCJun 11, 09:20 UTC1h 30m
2026-06-11 OXG MBW → MBW Jun 11, 05:00 UTCJun 11, 06:00 UTC1h 0m
2026-06-11 OXG MBW → MBW Jun 11, 02:15 UTCJun 11, 03:15 UTC1h 0m
2026-06-10 OXG MBW → MBW Jun 10, 23:05 UTCJun 11, 00:15 UTC1h 10m
2026-06-10 OXG MBW → MBW Jun 10, 06:20 UTCJun 10, 07:15 UTC55m
2026-06-09 OXG - Jun 9, 06:50 UTCJun 9, 07:10 UTC20m
2026-06-09 OXG - Jun 9, 06:10 UTCJun 9, 06:35 UTC25m
2026-06-09 OXG - Jun 9, 00:25 UTCJun 9, 01:25 UTC1h 0m
2026-06-08 OXG MBW → MBW Jun 8, 07:30 UTCJun 8, 09:35 UTC2h 5m
2026-06-05 OXG MBW → MBW Jun 5, 23:50 UTCJun 6, 00:45 UTC55m
2026-06-05 OXG MBW → MBW Jun 5, 05:05 UTCJun 5, 06:05 UTC1h 0m
2026-06-04 OXG MBW → MBW Jun 4, 23:10 UTCJun 5, 01:20 UTC2h 10m
2026-06-03 OXG MBW → MBW Jun 3, 05:00 UTCJun 3, 05:20 UTC20m
2026-06-03 OXG MBW → MBW Jun 3, 04:20 UTCJun 3, 04:55 UTC35m
2026-06-03 OXG MBW → MBW Jun 3, 02:50 UTCJun 3, 03:20 UTC30m

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 9h 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.