Apparatus

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sensors Mode-S transponder

7C7F4D

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ZFJ · CESSNA 182 Skylane · operated by SCHOFIELDS FLYING CLUB LTD

Hex
7C7F4D
Octal
37077515
Decimal
8,159,053
Country
AU
Tail
VH-ZFJ
Type
C182
Transponder active on ground
Flights observed
46
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C7F4D.

Country allocation

The ICAO 24-bit address 7C7F4D 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
ZFJ - 46 2026-06-01

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-01 ZFJ BWU → BWU Jun 1, 03:25 UTCJun 1, 05:25 UTC2h 0m
2026-05-31 ZFJ BWU → BWU May 31, 22:30 UTCJun 1, 00:50 UTC2h 20m
2026-05-27 ZFJ BWU → BWU May 27, 04:09 UTCMay 27, 06:20 UTC2h 10m
2026-05-10 ZFJ BWU → BWU May 10, 04:25 UTCMay 10, 06:35 UTC2h 10m
2026-05-10 ZFJ - May 10, 01:55 UTCMay 10, 03:04 UTC1h 10m
2026-05-09 ZFJ BWU → MYA May 9, 23:09 UTCMay 10, 00:45 UTC1h 35m
2026-05-09 ZFJ BWU → BWU May 9, 04:25 UTCMay 9, 06:20 UTC1h 55m
2026-05-08 ZFJ BWU → BWU May 8, 22:20 UTCMay 8, 23:35 UTC1h 15m
2026-05-06 ZFJ - May 6, 06:10 UTCMay 6, 06:20 UTC10m
2026-05-06 ZFJ - May 6, 04:00 UTCMay 6, 05:45 UTC1h 45m
2026-05-06 ZFJ BWU → BWU May 6, 01:15 UTCMay 6, 02:01 UTC45m
2026-05-05 ZFJ - May 5, 01:00 UTCMay 5, 01:55 UTC55m
2026-05-04 ZFJ - May 4, 22:55 UTCMay 5, 00:00 UTC1h 5m
2026-04-28 ZFJ BWU → BWU Apr 28, 05:50 UTCApr 28, 06:50 UTC1h 0m
2026-04-28 ZFJ BWU → BWU Apr 28, 02:20 UTCApr 28, 04:50 UTC2h 30m
2026-04-27 ZFJ - Apr 27, 04:45 UTCApr 27, 05:35 UTC50m
2026-04-27 ZFJ - Apr 27, 02:40 UTCApr 27, 03:35 UTC55m
2026-04-26 ZFJ BWU → BWU Apr 26, 23:25 UTCApr 27, 01:30 UTC2h 5m
2026-04-25 ZFJ BWU → BWU Apr 25, 22:25 UTCApr 26, 00:50 UTC2h 25m
2026-04-24 ZFJ - Apr 24, 03:50 UTCApr 24, 04:40 UTC50m
2026-04-24 ZFJ - Apr 24, 00:55 UTCApr 24, 01:50 UTC55m
2026-04-20 ZFJ BWU → BWU Apr 20, 23:35 UTCApr 21, 01:20 UTC1h 45m
2026-04-20 ZFJ - Apr 20, 06:00 UTCApr 20, 06:40 UTC40m
2026-04-20 ZFJ - Apr 20, 04:40 UTCApr 20, 05:30 UTC50m
2026-04-20 ZFJ BWU → BWU Apr 20, 01:00 UTCApr 20, 03:00 UTC2h 0m
2026-04-18 ZFJ BWU → BWU Apr 18, 23:15 UTCApr 19, 01:10 UTC1h 55m
2026-04-18 ZFJ - Apr 18, 05:40 UTCApr 18, 06:05 UTC25m
2026-04-18 ZFJ - Apr 18, 05:00 UTCApr 18, 05:10 UTC10m
2026-04-18 ZFJ - Apr 18, 01:25 UTCApr 18, 01:35 UTC10m
2026-04-17 ZFJ - Apr 17, 23:50 UTCApr 18, 01:20 UTC1h 30m
2026-04-17 ZFJ BWU → BWU Apr 17, 03:20 UTCApr 17, 03:50 UTC30m
2026-04-17 ZFJ - Apr 17, 02:55 UTCApr 17, 03:15 UTC20m
2026-04-17 ZFJ - Apr 17, 01:20 UTCApr 17, 01:35 UTC15m
2026-04-16 ZFJ - Apr 16, 23:25 UTCApr 17, 01:15 UTC1h 50m
2026-04-16 ZFJ BWU → BWU Apr 16, 21:34 UTCApr 16, 22:10 UTC35m
2026-04-16 ZFJ - Apr 16, 05:29 UTCApr 16, 07:05 UTC1h 35m
2026-04-16 ZFJ - Apr 16, 04:20 UTCApr 16, 05:05 UTC45m
2026-04-16 ZFJ - Apr 16, 02:04 UTCApr 16, 03:04 UTC1h 0m
2026-04-16 ZFJ BWU → BWU Apr 16, 01:10 UTCApr 16, 01:20 UTC10m
2026-04-15 ZFJ BWU → BWU Apr 15, 23:55 UTCApr 16, 01:05 UTC1h 10m
2026-04-15 ZFJ TMW → BWU Apr 15, 05:10 UTCApr 15, 06:40 UTC1h 30m
2026-04-15 ZFJ - Apr 15, 02:55 UTCApr 15, 03:55 UTC1h 0m
2026-04-15 ZFJ - Apr 15, 02:25 UTCApr 15, 02:50 UTC25m
2026-04-15 ZFJ BWU → BWU Apr 15, 00:55 UTCApr 15, 01:00 UTC5m
2026-04-14 ZFJ - Apr 14, 22:55 UTCApr 15, 00:50 UTC1h 55m
2026-04-14 ZFJ - Apr 14, 22:40 UTCApr 14, 22:50 UTC10m

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

Mode-S 7C7F4D frequently asked

What is Mode-S code 7C7F4D?
7C7F4D is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZFJ.
Where is Mode-S 7C7F4D registered?
Mode-S code 7C7F4D is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7F4D broadcasting right now?
Mode-S 7C7F4D is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7F4D, octal 37077515, decimal 8,159,053.
What flights does 7C7F4D operate?
Mode-S 7C7F4D has broadcast 1 distinct callsign, including ZFJ.