Apparatus

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sensors Mode-S transponder

7C4057

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-MZT · CESSNA 172 Skyhawk · operated by TRISTAR AVIATION COMPANY PTY. LTD.

Hex
7C4057
Octal
37040127
Decimal
8,142,935
Country
AU
Tail
VH-MZT
Type
C172
No current signal · last broadcast 3d ago
Flights observed
52
Distinct callsigns
1
Country
AU
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 7C4057.

Country allocation

The ICAO 24-bit address 7C4057 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
MZT - 52 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-31 MZT MBW → MBW May 31, 00:10 UTCMay 31, 00:40 UTC30m
2026-05-30 MZT MBW → MBW May 30, 01:45 UTCMay 30, 02:55 UTC1h 10m
2026-05-29 MZT - May 29, 03:25 UTCMay 29, 04:00 UTC35m
2026-05-29 MZT - May 29, 02:15 UTCMay 29, 02:55 UTC40m
2026-05-24 MZT MBW → MBW May 24, 05:25 UTCMay 24, 05:50 UTC25m
2026-05-24 MZT - May 24, 04:15 UTCMay 24, 04:35 UTC20m
2026-05-24 MZT MBW → MBW May 24, 03:15 UTCMay 24, 03:35 UTC20m
2026-05-24 MZT MBW → MBW May 24, 01:00 UTCMay 24, 01:30 UTC30m
2026-05-23 MZT MBW → MBW May 23, 23:40 UTCMay 24, 00:05 UTC25m
2026-05-23 MZT MBW → MBW May 23, 00:45 UTCMay 23, 02:25 UTC1h 40m
2026-05-22 MZT - May 22, 03:55 UTCMay 22, 04:25 UTC30m
2026-05-22 MZT - May 22, 02:45 UTCMay 22, 03:20 UTC35m
2026-05-16 MZT MBW → MBW May 16, 01:15 UTCMay 16, 01:45 UTC30m
2026-05-15 MZT MBW → MBW May 15, 01:30 UTCMay 15, 02:00 UTC30m
2026-05-14 MZT - May 14, 03:45 UTCMay 14, 04:30 UTC45m
2026-05-14 MZT - May 14, 02:05 UTCMay 14, 03:10 UTC1h 5m
2026-05-13 MZT - May 13, 06:15 UTCMay 13, 07:15 UTC1h 0m
2026-05-13 MZT - May 13, 04:30 UTCMay 13, 05:05 UTC35m
2026-05-13 MZT MBW → MEB May 13, 04:05 UTCMay 13, 04:25 UTC20m
2026-05-13 MZT - May 13, 01:10 UTCMay 13, 01:35 UTC25m
2026-05-12 MZT MBW → MBW May 12, 03:30 UTCMay 12, 06:10 UTC2h 40m
2026-05-11 MZT - May 11, 06:20 UTCMay 11, 07:05 UTC45m
2026-05-11 MZT - May 11, 04:30 UTCMay 11, 05:20 UTC50m
2026-05-11 MZT MBW → MEB May 11, 04:00 UTCMay 11, 04:15 UTC15m
2026-05-10 MZT MBW → MBW May 10, 05:04 UTCMay 10, 05:20 UTC15m
2026-05-10 MZT - May 10, 03:55 UTCMay 10, 04:09 UTC15m
2026-05-10 MZT MBW → MBW May 10, 02:10 UTCMay 10, 02:39 UTC30m
2026-05-05 MZT MBW → MBW May 5, 23:40 UTCMay 6, 00:46 UTC1h 5m
2026-04-24 MZT MBW → MBW Apr 24, 23:20 UTCApr 25, 02:20 UTC3h 0m
2026-04-24 MZT - Apr 24, 03:25 UTCApr 24, 03:50 UTC25m
2026-04-24 MZT - Apr 24, 01:00 UTCApr 24, 01:30 UTC30m
2026-04-24 MZT MBW → MEB Apr 24, 00:25 UTCApr 24, 00:50 UTC25m
2026-04-23 MZT - Apr 23, 04:55 UTCApr 23, 06:05 UTC1h 10m
2026-04-23 MZT - Apr 23, 03:35 UTCApr 23, 04:25 UTC50m
2026-04-22 MZT - Apr 22, 07:05 UTCApr 22, 07:35 UTC30m
2026-04-22 MZT - Apr 22, 04:25 UTCApr 22, 04:55 UTC30m
2026-04-22 MZT MBW → MEB Apr 22, 04:00 UTCApr 22, 04:15 UTC15m
2026-04-22 MZT MBW → MBW Apr 22, 01:05 UTCApr 22, 02:00 UTC55m
2026-04-22 MZT MBW → MBW Apr 22, 00:15 UTCApr 22, 01:00 UTC45m
2026-04-21 MZT MBW → MBW Apr 21, 04:00 UTCApr 21, 05:50 UTC1h 50m
2026-04-21 MZT - Apr 21, 02:00 UTCApr 21, 02:35 UTC35m
2026-04-21 MZT - Apr 21, 00:30 UTCApr 21, 01:05 UTC35m
2026-04-20 MZT - Apr 20, 06:05 UTCApr 20, 06:40 UTC35m
2026-04-20 MZT - Apr 20, 04:05 UTCApr 20, 04:30 UTC25m
2026-04-20 MZT MBW → MEB Apr 20, 03:40 UTCApr 20, 03:55 UTC15m
2026-04-20 MZT - Apr 20, 01:30 UTCApr 20, 02:35 UTC1h 5m
2026-04-20 MZT - Apr 20, 00:00 UTCApr 20, 00:55 UTC55m
2026-04-19 MZT - Apr 19, 05:55 UTCApr 19, 06:10 UTC15m
2026-04-19 MZT - Apr 19, 04:10 UTCApr 19, 04:25 UTC15m
2026-04-19 MZT MBW → MBW Apr 19, 00:20 UTCApr 19, 00:55 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-MZT page for operator, model, and routing details .

Mode-S 7C4057 frequently asked

What is Mode-S code 7C4057?
7C4057 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-MZT.
Where is Mode-S 7C4057 registered?
Mode-S code 7C4057 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4057 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C4057, octal 37040127, decimal 8,142,935.
What flights does 7C4057 operate?
Mode-S 7C4057 has broadcast 1 distinct callsign, including MZT.