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sensors Mode-S transponder

7C8163

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ZUD · PIPER PA-44 Seminole · operated by AIRFLITE PTY LTD

Hex
7C8163
Octal
37100543
Decimal
8,159,587
Country
AU
Tail
VH-ZUD
Type
PA44
No current signal · last broadcast 4h ago
Flights observed
81
Distinct callsigns
1
Country
AU
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7C8163.

Country allocation

The ICAO 24-bit address 7C8163 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
ZUD - 81 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ZUD BWU → BWU May 29, 21:55 UTCMay 29, 22:10 UTC15m
2026-05-29 ZUD BWU → BWU May 29, 06:25 UTCMay 29, 07:00 UTC35m
2026-05-28 ZUD BWU → BWU May 28, 01:15 UTCMay 28, 02:20 UTC1h 5m
2026-05-27 ZUD BWU → BWU May 27, 03:04 UTCMay 27, 04:04 UTC1h 0m
2026-05-26 ZUD BWU → BWU May 26, 03:55 UTCMay 26, 05:40 UTC1h 45m
2026-05-25 ZUD BWU → BWU May 25, 09:30 UTCMay 25, 10:35 UTC1h 5m
2026-05-24 ZUD BWU → BWU May 24, 04:35 UTCMay 24, 05:45 UTC1h 10m
2026-05-24 ZUD BWU → BWU May 24, 01:10 UTCMay 24, 02:45 UTC1h 35m
2026-05-23 ZUD BWU → BWU May 23, 04:20 UTCMay 23, 05:55 UTC1h 35m
2026-05-22 ZUD BWU → BWU May 22, 23:00 UTCMay 23, 00:15 UTC1h 15m
2026-05-22 ZUD BWU → BWU May 22, 05:35 UTCMay 22, 06:10 UTC35m
2026-05-22 ZUD BWU → BWU May 22, 01:50 UTCMay 22, 02:40 UTC50m
2026-05-21 ZUD - May 21, 09:30 UTCMay 21, 10:20 UTC50m
2026-05-21 ZUD - May 21, 08:05 UTCMay 21, 08:50 UTC45m
2026-05-21 ZUD BWU → BWU May 21, 03:50 UTCMay 21, 04:55 UTC1h 5m
2026-05-21 ZUD BWU → BWU May 21, 01:35 UTCMay 21, 03:00 UTC1h 25m
2026-05-20 ZUD BWU → BWU May 20, 22:15 UTCMay 21, 00:10 UTC1h 55m
2026-05-20 ZUD BWU → BWU May 20, 06:20 UTCMay 20, 06:55 UTC35m
2026-05-20 ZUD BWU → BWU May 20, 06:10 UTCMay 20, 06:15 UTC5m
2026-05-20 ZUD - May 20, 02:50 UTCMay 20, 03:35 UTC45m
2026-05-20 ZUD - May 20, 01:55 UTCMay 20, 02:20 UTC25m
2026-05-16 ZUD BWU → BWU May 16, 03:45 UTCMay 16, 04:20 UTC35m
2026-05-15 ZUD BWU → BWU May 15, 22:30 UTCMay 15, 22:35 UTC5m
2026-05-15 ZUD BWU → BWU May 15, 01:10 UTCMay 15, 02:10 UTC1h 0m
2026-05-14 ZUD BWU → BWU May 14, 22:40 UTCMay 14, 23:45 UTC1h 5m
2026-05-13 ZUD BWU → BWU May 13, 22:15 UTCMay 13, 23:00 UTC45m
2026-05-12 ZUD BWU → BWU May 12, 04:55 UTCMay 12, 06:50 UTC1h 55m
2026-05-12 ZUD - May 12, 02:45 UTCMay 12, 02:55 UTC10m
2026-05-11 ZUD - May 11, 22:30 UTCMay 11, 22:35 UTC4m
2026-05-11 ZUD - May 11, 03:45 UTCMay 11, 04:30 UTC45m
2026-05-11 ZUD - May 11, 02:35 UTCMay 11, 03:15 UTC40m
2026-05-10 ZUD BWU → BWU May 10, 22:25 UTCMay 11, 00:15 UTC1h 50m
2026-05-10 ZUD BWU → BWU May 10, 06:20 UTCMay 10, 06:50 UTC30m
2026-05-10 ZUD BWU → BWU May 10, 02:30 UTCMay 10, 04:25 UTC1h 55m
2026-05-09 ZUD BWU → BWU May 9, 23:00 UTCMay 10, 00:55 UTC1h 55m
2026-05-09 ZUD BWU → BWU May 9, 04:10 UTCMay 9, 05:00 UTC50m
2026-05-07 ZUD BWU → BWU May 7, 23:45 UTCMay 8, 01:00 UTC1h 15m
2026-05-07 ZUD BWU → BWU May 7, 04:45 UTCMay 7, 05:50 UTC1h 5m
2026-05-05 ZUD BWU → BWU May 5, 22:05 UTCMay 5, 22:55 UTC50m
2026-05-05 ZUD BWU → BWU May 5, 08:20 UTCMay 5, 10:35 UTC2h 15m
2026-04-28 ZUD BWU → BWU Apr 28, 04:05 UTCApr 28, 06:35 UTC2h 30m
2026-04-28 ZUD BWU → BWU Apr 28, 01:25 UTCApr 28, 02:05 UTC40m
2026-04-27 ZUD BWU → BWU Apr 27, 22:20 UTCApr 28, 00:15 UTC1h 55m
2026-04-27 ZUD BWU → BWU Apr 27, 05:35 UTCApr 27, 06:40 UTC1h 5m
2026-04-27 ZUD BWU → BWU Apr 27, 01:55 UTCApr 27, 03:00 UTC1h 5m
2026-04-26 ZUD BWU → BWU Apr 26, 04:10 UTCApr 26, 05:05 UTC55m
2026-04-26 ZUD BWU → BWU Apr 26, 01:10 UTCApr 26, 01:45 UTC35m
2026-04-25 ZUD BWU → BWU Apr 25, 23:40 UTCApr 26, 00:15 UTC35m
2026-04-25 ZUD BWU → BWU Apr 25, 04:45 UTCApr 25, 06:05 UTC1h 20m
2026-04-25 ZUD BWU → BWU Apr 25, 01:30 UTCApr 25, 02:05 UTC35m

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

Mode-S 7C8163 frequently asked

What is Mode-S code 7C8163?
7C8163 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZUD.
Where is Mode-S 7C8163 registered?
Mode-S code 7C8163 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C8163 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C8163, octal 37100543, decimal 8,159,587.
What flights does 7C8163 operate?
Mode-S 7C8163 has broadcast 1 distinct callsign, including ZUD.