Apparatus

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sensors Mode-S transponder

7C175D

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-EWF · CESSNA 172 Skyhawk · operated by OXFORD AVIATION ACADEMY (AUSTRALIA) PTY LTD

Hex
7C175D
Octal
37013535
Decimal
8,132,445
Country
AU
Tail
VH-EWF
Type
C172
No current signal · last broadcast 5d ago
Flights observed
84
Distinct callsigns
1
Country
AU
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 7C175D.

Country allocation

The ICAO 24-bit address 7C175D 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
EWF - 84 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-25 EWF MBW → MBW May 25, 02:15 UTCMay 25, 03:00 UTC45m
2026-05-22 EWF MBW → MBW May 22, 03:10 UTCMay 22, 04:45 UTC1h 35m
2026-05-21 EWF MBW → MBW May 21, 22:45 UTCMay 22, 00:25 UTC1h 40m
2026-05-21 EWF MBW → MBW May 21, 03:55 UTCMay 21, 06:25 UTC2h 30m
2026-05-21 EWF - May 21, 01:20 UTCMay 21, 02:10 UTC50m
2026-05-20 EWF MBW → MBW May 20, 05:50 UTCMay 20, 06:35 UTC45m
2026-05-19 EWF MBW → MBW May 19, 22:30 UTCMay 19, 23:00 UTC30m
2026-05-19 EWF MBW → MBW May 19, 08:05 UTCMay 19, 08:45 UTC40m
2026-05-16 EWF MBW → MBW May 16, 02:50 UTCMay 16, 03:35 UTC45m
2026-05-16 EWF MBW → MBW May 16, 00:15 UTCMay 16, 00:55 UTC40m
2026-05-15 EWF MBW → MBW May 15, 07:55 UTCMay 15, 08:50 UTC55m
2026-05-15 EWF MBW → MBW May 15, 05:40 UTCMay 15, 06:20 UTC40m
2026-05-15 EWF - May 15, 03:20 UTCMay 15, 03:55 UTC35m
2026-05-14 EWF MBW → MBW May 14, 23:30 UTCMay 15, 03:05 UTC3h 35m
2026-05-14 EWF MBW → MBW May 14, 09:00 UTCMay 14, 10:35 UTC1h 35m
2026-05-14 EWF WMB → MBW May 14, 04:05 UTCMay 14, 05:55 UTC1h 50m
2026-05-14 EWF MBW → WMB May 14, 01:35 UTCMay 14, 03:25 UTC1h 50m
2026-05-13 EWF MBW → MBW May 13, 08:15 UTCMay 13, 10:50 UTC2h 35m
2026-05-13 EWF - May 13, 06:20 UTCMay 13, 07:25 UTC1h 5m
2026-05-13 EWF - May 13, 04:15 UTCMay 13, 05:30 UTC1h 15m
2026-05-13 EWF - May 13, 02:30 UTCMay 13, 03:10 UTC40m
2026-05-13 EWF - May 13, 01:15 UTCMay 13, 01:55 UTC40m
2026-05-12 EWF MBW → MBW May 12, 08:30 UTCMay 12, 09:15 UTC45m
2026-05-12 EWF - May 12, 06:00 UTCMay 12, 06:45 UTC45m
2026-05-12 EWF - May 12, 04:45 UTCMay 12, 05:50 UTC1h 5m
2026-05-12 EWF - May 12, 02:45 UTCMay 12, 04:25 UTC1h 40m
2026-05-11 EWF MBW → MBW May 11, 06:20 UTCMay 11, 07:20 UTC1h 0m
2026-05-11 EWF MBW → MBW May 11, 02:20 UTCMay 11, 05:30 UTC3h 10m
2026-05-10 EWF - May 10, 04:04 UTCMay 10, 04:39 UTC35m
2026-05-10 EWF - May 10, 02:24 UTCMay 10, 02:55 UTC30m
2026-05-06 EWF MBW → MBW May 6, 03:30 UTCMay 6, 04:45 UTC1h 15m
2026-05-06 EWF MBW → MBW May 6, 01:50 UTCMay 6, 02:30 UTC40m
2026-05-05 EWF MBW → MBW May 5, 23:30 UTCMay 6, 00:50 UTC1h 20m
2026-05-05 EWF - May 5, 06:00 UTCMay 5, 06:50 UTC50m
2026-05-05 EWF - May 5, 04:35 UTCMay 5, 05:25 UTC50m
2026-05-04 EWF MBW → MBW May 4, 02:00 UTCMay 4, 02:45 UTC45m
2026-05-03 EWF MBW → MBW May 3, 23:20 UTCMay 4, 01:00 UTC1h 40m
2026-05-02 EWF - May 2, 03:25 UTCMay 2, 04:05 UTC40m
2026-05-02 EWF - May 2, 02:20 UTCMay 2, 02:50 UTC30m
2026-05-01 EWF - May 1, 23:50 UTCMay 2, 00:30 UTC40m
2026-05-01 EWF MBW → MBW May 1, 06:10 UTCMay 1, 07:20 UTC1h 10m
2026-05-01 EWF MBW → MBW May 1, 03:40 UTCMay 1, 04:20 UTC40m
2026-05-01 EWF MBW → MBW May 1, 00:00 UTCMay 1, 01:40 UTC1h 40m
2026-04-30 EWF MBW → MBW Apr 30, 01:35 UTCApr 30, 02:20 UTC45m
2026-04-29 EWF - Apr 29, 01:50 UTCApr 29, 02:40 UTC50m
2026-04-29 EWF - Apr 29, 00:10 UTCApr 29, 01:10 UTC1h 0m
2026-04-28 EWF MBW → MBW Apr 28, 04:10 UTCApr 28, 06:25 UTC2h 15m
2026-04-27 EWF MBW → MBW Apr 27, 23:10 UTCApr 28, 01:20 UTC2h 10m
2026-04-27 EWF - Apr 27, 05:30 UTCApr 27, 06:50 UTC1h 20m
2026-04-27 EWF MBW → MBW Apr 27, 04:10 UTCApr 27, 05:20 UTC1h 10m

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

Mode-S 7C175D frequently asked

What is Mode-S code 7C175D?
7C175D is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-EWF.
Where is Mode-S 7C175D registered?
Mode-S code 7C175D is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C175D broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C175D, octal 37013535, decimal 8,132,445.
What flights does 7C175D operate?
Mode-S 7C175D has broadcast 1 distinct callsign, including EWF.