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 24d ago
Flights observed
96
Distinct callsigns
1
Country
AU
Last broadcast
24d 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 - 96 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EWC JAD → JAD Jul 26, 04:00 UTCJul 26, 06:50 UTC2h 51m
2026-07-25 EWC JAD → JAD Jul 25, 07:55 UTCJul 25, 08:55 UTC1h 0m
2026-07-25 EWC JAD → JAD Jul 25, 06:55 UTCJul 25, 07:10 UTC15m
2026-07-25 EWC JAD → JAD Jul 25, 04:00 UTCJul 25, 05:05 UTC1h 5m
2026-07-24 EWC JAD → JAD Jul 24, 09:10 UTCJul 24, 09:40 UTC30m
2026-07-24 EWC JAD → JAD Jul 24, 05:45 UTCJul 24, 06:55 UTC1h 10m
2026-07-24 EWC JAD → JAD Jul 24, 03:45 UTCJul 24, 04:40 UTC55m
2026-07-24 EWC JAD → JAD Jul 24, 00:30 UTCJul 24, 01:35 UTC1h 5m
2026-07-23 EWC JAD → JAD Jul 23, 08:40 UTCJul 23, 09:45 UTC1h 5m
2026-07-23 EWC JAD → JAD Jul 23, 06:40 UTCJul 23, 08:00 UTC1h 20m
2026-07-23 EWC JAD → JAD Jul 23, 04:55 UTCJul 23, 05:45 UTC50m
2026-07-23 EWC JAD → JAD Jul 23, 02:20 UTCJul 23, 03:45 UTC1h 25m
2026-07-23 EWC JAD → JAD Jul 23, 00:45 UTCJul 23, 01:40 UTC55m
2026-07-22 EWC JAD → JAD Jul 22, 03:20 UTCJul 22, 04:50 UTC1h 30m
2026-07-22 EWC JAD → JAD Jul 22, 00:25 UTCJul 22, 01:25 UTC1h 0m
2026-07-21 EWC JAD → JAD Jul 21, 08:15 UTCJul 21, 09:55 UTC1h 40m
2026-07-21 EWC JAD → JAD Jul 21, 00:35 UTCJul 21, 01:35 UTC1h 0m
2026-07-19 EWC JAD → JAD Jul 19, 03:45 UTCJul 19, 04:50 UTC1h 5m
2026-07-18 EWC JAD → JAD Jul 18, 08:35 UTCJul 18, 09:15 UTC40m
2026-07-14 EWC JAD → JAD Jul 14, 23:20 UTCJul 14, 23:30 UTC10m
2026-07-14 EWC JAD → JAD Jul 14, 07:05 UTCJul 14, 08:10 UTC1h 5m
2026-07-13 EWC JAD → JAD Jul 13, 06:01 UTCJul 13, 07:10 UTC1h 10m
2026-07-13 EWC - Jul 13, 03:45 UTCJul 13, 04:20 UTC35m
2026-07-13 EWC - Jul 13, 02:15 UTCJul 13, 03:10 UTC55m
2026-07-12 EWC JAD → JAD Jul 12, 00:30 UTCJul 12, 01:25 UTC55m
2026-07-10 EWC JAD → JAD Jul 10, 07:10 UTCJul 10, 08:50 UTC1h 40m
2026-07-09 EWC JAD → JAD Jul 9, 06:05 UTCJul 9, 07:20 UTC1h 15m
2026-07-08 EWC JAD → JAD Jul 8, 07:50 UTCJul 8, 09:30 UTC1h 40m
2026-07-08 EWC JAD → JAD Jul 8, 05:20 UTCJul 8, 06:20 UTC1h 0m
2026-07-08 EWC JAD → JAD Jul 8, 01:10 UTCJul 8, 04:00 UTC2h 50m
2026-07-07 EWC JAD → JAD Jul 7, 07:50 UTCJul 7, 09:00 UTC1h 10m
2026-07-07 EWC JAD → JAD Jul 7, 05:30 UTCJul 7, 06:35 UTC1h 5m
2026-07-07 EWC JAD → JAD Jul 7, 03:40 UTCJul 7, 04:45 UTC1h 5m
2026-07-05 EWC - Jul 5, 01:55 UTCJul 5, 03:00 UTC1h 5m
2026-07-05 EWC - Jul 5, 00:05 UTCJul 5, 00:50 UTC45m
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

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 24d 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.