Apparatus

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sensors Mode-S transponder

7C168A

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-EQK · DIAMOND DA-40 Club Star · operated by FLIGHT TRAINING ADELAIDE PTY LTD

Hex
7C168A
Octal
37013212
Decimal
8,132,234
Country
AU
Tail
VH-EQK
Type
DA40
No current signal · last broadcast 32m ago
Flights observed
99
Distinct callsigns
1
Country
AU
Last broadcast
32m ago

Last known position

Most recent position reported by Mode-S 7C168A.

Country allocation

The ICAO 24-bit address 7C168A 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
EQK - 99 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 EQK - Jul 15, 03:35 UTCJul 15, 04:30 UTC55m
2026-07-15 EQK - Jul 15, 02:50 UTCJul 15, 03:25 UTC35m
2026-07-15 EQK - Jul 15, 01:55 UTCJul 15, 02:40 UTC45m
2026-07-14 EQK - Jul 14, 06:30 UTCJul 14, 07:25 UTC55m
2026-07-14 EQK - Jul 14, 04:40 UTCJul 14, 05:30 UTC50m
2026-07-14 EQK - Jul 14, 03:35 UTCJul 14, 04:25 UTC50m
2026-07-14 EQK - Jul 14, 02:20 UTCJul 14, 03:15 UTC55m
2026-07-13 EQK - Jul 13, 23:20 UTCJul 14, 00:05 UTC45m
2026-07-10 EQK - Jul 10, 06:25 UTCJul 10, 06:55 UTC30m
2026-07-10 EQK - Jul 10, 05:05 UTCJul 10, 05:25 UTC20m
2026-07-10 EQK - Jul 10, 03:35 UTCJul 10, 04:30 UTC55m
2026-07-10 EQK - Jul 10, 01:25 UTCJul 10, 03:20 UTC1h 55m
2026-07-09 EQK - Jul 9, 21:55 UTCJul 10, 00:20 UTC2h 25m
2026-07-09 EQK - Jul 9, 09:00 UTCJul 9, 11:10 UTC2h 10m
2026-07-08 EQK - Jul 8, 03:35 UTCJul 8, 03:50 UTC15m
2026-07-08 EQK - Jul 8, 02:45 UTCJul 8, 03:30 UTC45m
2026-07-08 EQK - Jul 8, 01:35 UTCJul 8, 02:20 UTC45m
2026-07-08 EQK - Jul 8, 00:45 UTCJul 8, 01:30 UTC45m
2026-07-07 EQK - Jul 7, 22:15 UTCJul 7, 23:10 UTC55m
2026-07-07 EQK - Jul 7, 07:15 UTCJul 7, 08:00 UTC45m
2026-07-07 EQK - Jul 7, 05:20 UTCJul 7, 05:55 UTC35m
2026-07-07 EQK - Jul 7, 04:10 UTCJul 7, 04:20 UTC10m
2026-07-07 EQK - Jul 7, 02:40 UTCJul 7, 03:50 UTC1h 10m
2026-07-07 EQK - Jul 7, 01:30 UTCJul 7, 02:05 UTC35m
2026-07-06 EQK - Jul 6, 23:20 UTCJul 7, 00:35 UTC1h 15m
2026-07-06 EQK - Jul 6, 22:00 UTCJul 6, 22:25 UTC25m
2026-07-06 EQK - Jul 6, 04:20 UTCJul 6, 05:25 UTC1h 5m
2026-07-06 EQK - Jul 6, 02:30 UTCJul 6, 03:55 UTC1h 25m
2026-07-06 EQK - Jul 6, 00:55 UTCJul 6, 01:55 UTC1h 0m
2026-07-05 EQK - Jul 5, 23:55 UTCJul 6, 00:25 UTC30m
2026-07-05 EQK - Jul 5, 22:10 UTCJul 5, 22:40 UTC30m
2026-07-05 EQK - Jul 5, 05:25 UTCJul 5, 06:20 UTC55m
2026-07-05 EQK - Jul 5, 01:25 UTCJul 5, 02:05 UTC40m
2026-07-04 EQK - Jul 4, 23:10 UTCJul 4, 23:30 UTC20m
2026-07-03 EQK - Jul 3, 04:35 UTCJul 3, 06:40 UTC2h 5m
2026-07-02 EQK - Jul 2, 23:40 UTCJul 3, 02:40 UTC3h 0m
2026-07-02 EQK - Jul 2, 03:00 UTCJul 2, 04:15 UTC1h 15m
2026-06-30 EQK - Jun 30, 09:00 UTCJun 30, 10:20 UTC1h 20m
2026-06-30 EQK - Jun 30, 04:35 UTCJun 30, 04:45 UTC10m
2026-06-29 EQK - Jun 29, 03:39 UTCJun 29, 04:25 UTC45m
2026-06-29 EQK - Jun 29, 00:54 UTCJun 29, 03:25 UTC2h 30m
2026-06-28 EQK - Jun 28, 22:45 UTCJun 28, 23:39 UTC55m
2026-06-28 EQK - Jun 28, 02:14 UTCJun 28, 04:44 UTC2h 30m
2026-06-27 EQK - Jun 27, 22:55 UTCJun 28, 01:15 UTC2h 20m
2026-06-27 EQK - Jun 27, 04:59 UTCJun 27, 05:39 UTC40m
2026-06-27 EQK - Jun 27, 01:39 UTCJun 27, 02:45 UTC1h 5m
2026-05-18 EQK - May 18, 05:15 UTCMay 18, 06:25 UTC1h 10m
2026-05-18 EQK - May 18, 02:20 UTCMay 18, 02:45 UTC25m
2026-04-29 EQK - Apr 29, 06:39 UTCApr 29, 06:49 UTC10m
2026-04-29 EQK - Apr 29, 04:05 UTCApr 29, 04:25 UTC20m

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

Mode-S 7C168A frequently asked

What is Mode-S code 7C168A?
7C168A is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-EQK.
Where is Mode-S 7C168A registered?
Mode-S code 7C168A is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C168A broadcasting right now?
No active broadcast right now. Last signal was 32m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C168A, octal 37013212, decimal 8,132,234.
What flights does 7C168A operate?
Mode-S 7C168A has broadcast 1 distinct callsign, including EQK.