Apparatus

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sensors Mode-S transponder

7C5D78

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-SQY · CESSNA 510 Citation Mustang · operated by AIRMED AUSTRALIA PTY LTD

Hex
7C5D78
Octal
37056570
Decimal
8,150,392
Country
AU
Tail
VH-SQY
Type
C510
No current signal · last broadcast Jul 25, 05:35 UTC
Flights observed
261
Distinct callsigns
9
Country
AU
Last broadcast
Jul 25, 05:35 UTC

Last known position

Most recent position reported by Mode-S 7C5D78.

Country allocation

The ICAO 24-bit address 7C5D78 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 9 distinct

Callsign Airline Flights Last seen
AE976 Mandarin Airlines 72 2026-07-24
AE930 - 54 2026-07-24
AE921 - 46 2026-07-25
AE974 - 40 2026-07-13
AE962 - 17 2026-07-20
AE998 - 13 2026-07-08
AE994 Mandarin Airlines 13 2026-06-13
AE980 - 4 2026-07-23
SQY - 2 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AE921 - Jul 25, 05:05 UTCJul 25, 05:35 UTC30m
2026-07-25 AE921 - Jul 25, 03:55 UTCJul 25, 04:05 UTC10m
2026-07-24 AE976 SHE → TPE Jul 24, 14:40 UTCJul 24, 15:10 UTC30m
2026-07-24 AE976 SHE → TPE Jul 24, 11:45 UTCJul 24, 12:25 UTC40m
2026-07-24 AE930 TMW → BWU Jul 24, 07:55 UTCJul 24, 08:40 UTC45m
2026-07-24 AE930 - Jul 24, 06:10 UTCJul 24, 06:40 UTC30m
2026-07-24 AE930 - Jul 24, 03:05 UTCJul 24, 03:35 UTC30m
2026-07-24 AE930 - Jul 24, 00:05 UTCJul 24, 01:55 UTC1h 50m
2026-07-23 AE930 - Jul 23, 09:15 UTCJul 23, 10:00 UTC45m
2026-07-23 AE930 - Jul 23, 06:40 UTCJul 23, 07:55 UTC1h 15m
2026-07-23 AE980 - Jul 23, 04:45 UTCJul 23, 05:35 UTC50m
2026-07-23 AE980 NAA → PQQ Jul 23, 02:45 UTCJul 23, 03:20 UTC35m
2026-07-23 AE980 - Jul 23, 01:00 UTCJul 23, 01:40 UTC40m
2026-07-22 AE980 - Jul 22, 23:55 UTCJul 23, 00:20 UTC25m
2026-07-22 AE921 - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 AE921 - Jul 22, 04:45 UTCJul 22, 05:10 UTC25m
2026-07-22 AE921 - Jul 22, 03:05 UTCJul 22, 03:35 UTC30m
2026-07-21 AE921 - Jul 21, 10:10 UTCJul 21, 10:30 UTC20m
2026-07-21 AE921 - Jul 21, 08:10 UTCJul 21, 08:35 UTC25m
2026-07-21 AE921 - Jul 21, 05:55 UTCJul 21, 06:10 UTC15m
2026-07-21 AE921 - Jul 21, 04:05 UTCJul 21, 05:00 UTC55m
2026-07-20 AE962 - Jul 20, 08:30 UTCJul 20, 09:50 UTC1h 20m
2026-07-20 AE962 - Jul 20, 05:55 UTCJul 20, 07:20 UTC1h 25m
2026-07-20 AE962 - Jul 20, 02:35 UTCJul 20, 03:00 UTC25m
2026-07-20 AE962 - Jul 20, 01:35 UTCJul 20, 02:00 UTC25m
2026-07-19 AE976 - Jul 19, 05:00 UTCJul 19, 05:35 UTC35m
2026-07-19 AE976 - Jul 19, 03:35 UTCJul 19, 03:50 UTC15m
2026-07-19 AE976 - Jul 19, 02:40 UTCJul 19, 03:00 UTC20m
2026-07-18 AE962 - Jul 18, 08:00 UTCJul 18, 09:30 UTC1h 30m
2026-07-18 AE962 - Jul 18, 06:35 UTCJul 18, 07:00 UTC25m
2026-07-18 AE962 - Jul 18, 04:35 UTCJul 18, 05:05 UTC30m
2026-07-18 AE962 - Jul 18, 02:25 UTCJul 18, 03:55 UTC1h 31m
2026-07-17 AE962 - Jul 17, 10:50 UTCJul 17, 11:20 UTC30m
2026-07-17 AE962 - Jul 17, 07:50 UTCJul 17, 08:25 UTC35m
2026-07-17 AE962 - Jul 17, 06:40 UTCJul 17, 07:14 UTC35m
2026-07-17 AE962 - Jul 17, 03:50 UTCJul 17, 04:35 UTC45m
2026-07-16 AE921 - Jul 16, 13:05 UTCJul 16, 13:30 UTC25m
2026-07-16 AE921 - Jul 16, 12:00 UTCJul 16, 12:34 UTC35m
2026-07-16 AE921 - Jul 16, 10:59 UTCJul 16, 11:30 UTC30m
2026-07-16 AE921 - Jul 16, 09:15 UTCJul 16, 10:35 UTC1h 20m
2026-07-16 AE921 - Jul 16, 08:10 UTCJul 16, 08:40 UTC30m
2026-07-16 AE921 - Jul 16, 04:50 UTCJul 16, 05:25 UTC35m
2026-07-15 AE921 - Jul 15, 08:50 UTCJul 15, 09:25 UTC35m
2026-07-15 AE921 - Jul 15, 07:35 UTCJul 15, 07:50 UTC15m
2026-07-15 AE921 - Jul 15, 06:00 UTCJul 15, 06:45 UTC45m
2026-07-15 AE921 BWU → BWU Jul 15, 03:30 UTCJul 15, 05:00 UTC1h 30m
2026-07-15 AE921 - Jul 15, 02:00 UTCJul 15, 02:35 UTC35m
2026-07-14 AE921 - Jul 14, 06:50 UTCJul 14, 08:25 UTC1h 35m
2026-07-14 AE921 - Jul 14, 04:45 UTCJul 14, 05:20 UTC35m
2026-07-14 AE921 - Jul 14, 01:45 UTCJul 14, 03:20 UTC1h 35m

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

Mode-S 7C5D78 frequently asked

What is Mode-S code 7C5D78?
7C5D78 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-SQY.
Where is Mode-S 7C5D78 registered?
Mode-S code 7C5D78 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C5D78 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 05:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C5D78, octal 37056570, decimal 8,150,392.
What flights does 7C5D78 operate?
Mode-S 7C5D78 has broadcast 9 distinct callsigns, including AE976, AE930, AE921, AE974, AE962.