Apparatus

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sensors Mode-S transponder

7C5E64

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-SXI · CESSNA 172 Skyhawk · operated by PHIL UNICOMB AVIATION PTY LTD

Hex
7C5E64
Octal
37057144
Decimal
8,150,628
Country
AU
Tail
VH-SXI
Type
C172
No current signal · last broadcast 18h ago
Flights observed
46
Distinct callsigns
1
Country
AU
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 7C5E64.

Country allocation

The ICAO 24-bit address 7C5E64 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
SXI - 46 2026-06-01

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-01 SXI - Jun 1, 23:15 UTCJun 2, 00:15 UTC1h 0m
2026-06-01 SXI CES → CES Jun 1, 05:25 UTCJun 1, 05:50 UTC25m
2026-06-01 SXI - Jun 1, 03:55 UTCJun 1, 04:30 UTC35m
2026-06-01 SXI - Jun 1, 01:50 UTCJun 1, 02:20 UTC30m
2026-05-31 SXI - May 31, 00:40 UTCMay 31, 00:55 UTC15m
2026-05-30 SXI - May 30, 21:55 UTCMay 30, 23:30 UTC1h 35m
2026-05-30 SXI - May 30, 05:15 UTCMay 30, 05:25 UTC10m
2026-05-30 SXI - May 30, 03:20 UTCMay 30, 04:35 UTC1h 15m
2026-05-30 SXI - May 30, 01:05 UTCMay 30, 01:30 UTC25m
2026-05-29 SXI - May 29, 23:30 UTCMay 29, 23:45 UTC15m
2026-05-21 SXI - May 21, 03:10 UTCMay 21, 03:55 UTC45m
2026-05-20 SXI - May 20, 22:35 UTCMay 20, 22:55 UTC20m
2026-05-12 SXI - May 12, 04:00 UTCMay 12, 04:15 UTC15m
2026-05-09 SXI - May 9, 06:30 UTCMay 9, 06:45 UTC15m
2026-05-09 SXI - May 9, 05:40 UTCMay 9, 05:55 UTC15m
2026-05-09 SXI - May 9, 02:35 UTCMay 9, 02:55 UTC20m
2026-05-08 SXI - May 8, 23:35 UTCMay 8, 23:45 UTC10m
2026-05-07 SXI - May 7, 03:05 UTCMay 7, 03:50 UTC45m
2026-05-06 SXI - May 6, 05:30 UTCMay 6, 06:05 UTC35m
2026-05-06 SXI - May 6, 04:00 UTCMay 6, 04:35 UTC35m
2026-05-06 SXI - May 6, 00:50 UTCMay 6, 02:01 UTC1h 10m
2026-05-05 SXI - May 5, 00:45 UTCMay 5, 01:25 UTC40m
2026-05-03 SXI - May 3, 07:00 UTCMay 3, 07:10 UTC10m
2026-05-03 SXI - May 3, 03:25 UTCMay 3, 04:40 UTC1h 14m
2026-05-02 SXI - May 2, 04:45 UTCMay 2, 05:15 UTC30m
2026-05-01 SXI - May 1, 04:15 UTCMay 1, 05:05 UTC50m
2026-04-29 SXI - Apr 29, 05:09 UTCApr 29, 06:10 UTC1h 0m
2026-04-29 SXI - Apr 29, 02:09 UTCApr 29, 02:45 UTC35m
2026-04-27 SXI - Apr 27, 02:15 UTCApr 27, 03:30 UTC1h 15m
2026-04-27 SXI CES → CES Apr 27, 00:35 UTCApr 27, 01:20 UTC45m
2026-04-26 SXI - Apr 26, 05:20 UTCApr 26, 06:05 UTC45m
2026-04-26 SXI - Apr 26, 01:05 UTCApr 26, 03:00 UTC1h 55m
2026-04-25 SXI CES → CES Apr 25, 05:05 UTCApr 25, 05:35 UTC30m
2026-04-25 SXI - Apr 25, 02:50 UTCApr 25, 03:05 UTC15m
2026-04-23 SXI - Apr 23, 22:50 UTCApr 23, 23:10 UTC20m
2026-04-23 SXI - Apr 23, 01:35 UTCApr 23, 01:45 UTC10m
2026-04-22 SXI - Apr 22, 23:40 UTCApr 23, 00:25 UTC45m
2026-04-20 SXI - Apr 20, 23:00 UTCApr 20, 23:10 UTC10m
2026-04-18 SXI - Apr 18, 01:50 UTCApr 18, 02:30 UTC40m
2026-04-17 SXI - Apr 17, 05:50 UTCApr 17, 06:35 UTC45m
2026-04-17 SXI - Apr 17, 01:20 UTCApr 17, 02:25 UTC1h 5m
2026-04-17 SXI - Apr 17, 01:00 UTCApr 17, 01:15 UTC15m
2026-04-16 SXI - Apr 16, 05:15 UTCApr 16, 05:54 UTC40m
2026-04-16 SXI - Apr 16, 03:30 UTCApr 16, 04:14 UTC45m
2026-04-14 SXI - Apr 14, 22:55 UTCApr 14, 23:35 UTC40m
2026-04-13 SXI - Apr 13, 23:00 UTCApr 13, 23:40 UTC40m

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

Mode-S 7C5E64 frequently asked

What is Mode-S code 7C5E64?
7C5E64 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-SXI.
Where is Mode-S 7C5E64 registered?
Mode-S code 7C5E64 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C5E64 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C5E64, octal 37057144, decimal 8,150,628.
What flights does 7C5E64 operate?
Mode-S 7C5E64 has broadcast 1 distinct callsign, including SXI.