Apparatus

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sensors Mode-S transponder

7C175A

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-EWC · CESSNA 172 Skyhawk · operated by ROYAL AERO CLUB OF WESTERN AUSTRALIA

Hex
7C175A
Octal
37013532
Decimal
8,132,442
Country
AU
Tail
VH-EWC
Type
C172
No current signal · last broadcast 39m ago
Flights observed
62
Distinct callsigns
1
Country
AU
Last broadcast
39m ago

Last known position

Most recent position reported by Mode-S 7C175A.

Country allocation

The ICAO 24-bit address 7C175A 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
EWC - 62 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-05 EWC - Jul 5, 00:05 UTCJul 5, 00:30 UTC25m
2026-07-04 EWC - Jul 4, 07:45 UTCJul 4, 08:10 UTC25m
2026-07-04 EWC - Jul 4, 05:55 UTCJul 4, 06:35 UTC40m
2026-07-04 EWC BUY → JAD Jul 4, 03:25 UTCJul 4, 04:45 UTC1h 20m
2026-07-04 EWC JAD → BUY Jul 4, 01:30 UTCJul 4, 02:40 UTC1h 10m
2026-07-03 EWC JAD → JAD Jul 3, 10:00 UTCJul 3, 11:00 UTC1h 0m
2026-07-03 EWC JAD → JAD Jul 3, 01:30 UTCJul 3, 03:30 UTC2h 0m
2026-07-02 EWC JAD → JAD Jul 2, 07:45 UTCJul 2, 08:50 UTC1h 5m
2026-07-02 EWC JAD → JAD Jul 2, 01:45 UTCJul 2, 02:45 UTC1h 0m
2026-06-25 EWC JAD → JAD Jun 25, 06:55 UTCJun 25, 07:19 UTC25m
2026-06-25 EWC JAD → JAD Jun 25, 01:14 UTCJun 25, 03:44 UTC2h 30m
2026-06-24 EWC - Jun 24, 07:44 UTCJun 24, 08:20 UTC35m
2026-06-24 EWC - Jun 24, 05:40 UTCJun 24, 06:20 UTC40m
2026-06-24 EWC JAD → JAD Jun 24, 02:15 UTCJun 24, 03:00 UTC45m
2026-06-24 EWC JAD → JAD Jun 24, 00:20 UTCJun 24, 01:24 UTC1h 5m
2026-06-23 EWC JAD → JAD Jun 23, 08:39 UTCJun 23, 09:34 UTC55m
2026-06-23 EWC JAD → JAD Jun 23, 03:39 UTCJun 23, 04:39 UTC1h 0m
2026-06-23 EWC JAD → JAD Jun 23, 00:19 UTCJun 23, 01:00 UTC40m
2026-06-21 EWC JAD → JAD Jun 21, 05:54 UTCJun 21, 07:14 UTC1h 20m
2026-06-21 EWC JAD → JAD Jun 21, 03:55 UTCJun 21, 04:34 UTC40m
2026-06-21 EWC JAD → JAD Jun 21, 02:10 UTCJun 21, 03:00 UTC50m
2026-06-21 EWC JAD → JAD Jun 21, 00:19 UTCJun 21, 01:30 UTC1h 10m
2026-06-19 EWC - Jun 19, 06:49 UTCJun 19, 07:25 UTC35m
2026-06-19 EWC - Jun 19, 03:39 UTCJun 19, 04:10 UTC30m
2026-06-18 EWC JAD → JAD Jun 18, 03:30 UTCJun 18, 04:30 UTC1h 0m
2026-06-17 EWC JAD → JAD Jun 17, 00:50 UTCJun 17, 01:45 UTC55m
2026-06-16 EWC - Jun 16, 07:20 UTCJun 16, 08:05 UTC45m
2026-06-16 EWC - Jun 16, 05:05 UTCJun 16, 05:40 UTC35m
2026-06-16 EWC JAD → JAD Jun 16, 00:55 UTCJun 16, 02:24 UTC1h 30m
2026-06-13 EWC JAD → JAD Jun 13, 04:35 UTCJun 13, 05:45 UTC1h 10m
2026-06-12 EWC - Jun 12, 07:10 UTCJun 12, 07:50 UTC40m
2026-06-12 EWC - Jun 12, 04:35 UTCJun 12, 05:05 UTC30m
2026-06-10 EWC JAD → JAD Jun 10, 05:15 UTCJun 10, 07:25 UTC2h 10m
2026-06-10 EWC JAD → JAD Jun 10, 01:50 UTCJun 10, 03:15 UTC1h 25m
2026-06-07 EWC JAD → JAD Jun 7, 03:15 UTCJun 7, 04:00 UTC45m
2026-06-06 EWC JAD → JAD Jun 6, 05:30 UTCJun 6, 06:50 UTC1h 20m
2026-06-05 EWC JAD → JAD Jun 5, 07:05 UTCJun 5, 08:25 UTC1h 20m
2026-06-05 EWC JAD → JAD Jun 5, 03:00 UTCJun 5, 05:00 UTC2h 0m
2026-06-05 EWC JAD → JAD Jun 5, 01:15 UTCJun 5, 02:00 UTC45m
2026-06-04 EWC JAD → JAD Jun 4, 10:25 UTCJun 4, 12:35 UTC2h 10m
2026-06-04 EWC JAD → JAD Jun 4, 07:35 UTCJun 4, 09:20 UTC1h 45m
2026-06-04 EWC JAD → JAD Jun 4, 05:55 UTCJun 4, 06:40 UTC45m
2026-06-04 EWC JAD → JAD Jun 4, 02:00 UTCJun 4, 04:55 UTC2h 55m
2026-06-04 EWC JAD → JAD Jun 4, 00:00 UTCJun 4, 00:55 UTC55m
2026-06-03 EWC JAD → JAD Jun 3, 05:50 UTCJun 3, 06:40 UTC50m
2026-06-03 EWC JAD → JAD Jun 3, 02:50 UTCJun 3, 04:00 UTC1h 10m
2026-06-02 EWC JAD → JAD Jun 2, 05:05 UTCJun 2, 07:35 UTC2h 30m
2026-05-29 EWC JAD → JAD May 29, 06:35 UTCMay 29, 07:40 UTC1h 5m
2026-05-28 EWC JAD → JAD May 28, 03:25 UTCMay 28, 04:25 UTC1h 0m
2026-05-27 EWC JAD → JAD May 27, 05:14 UTCMay 27, 05:55 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-EWC page for operator, model, and routing details .

Mode-S 7C175A frequently asked

What is Mode-S code 7C175A?
7C175A is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-EWC.
Where is Mode-S 7C175A registered?
Mode-S code 7C175A is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C175A broadcasting right now?
No active broadcast right now. Last signal was 39m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C175A, octal 37013532, decimal 8,132,442.
What flights does 7C175A operate?
Mode-S 7C175A has broadcast 1 distinct callsign, including EWC.