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 14h ago
Flights observed
156
Distinct callsigns
1
Country
AU
Last broadcast
14h 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 - 156 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EWF MBW → MBW Jul 14, 02:45 UTCJul 14, 03:25 UTC40m
2026-07-13 EWF MBW → MBW Jul 13, 04:20 UTCJul 13, 04:50 UTC30m
2026-07-12 EWF MBW → MBW Jul 12, 22:40 UTCJul 12, 23:25 UTC45m
2026-07-11 EWF MBW → MBW Jul 11, 22:50 UTCJul 11, 23:40 UTC50m
2026-07-11 EWF - Jul 11, 03:25 UTCJul 11, 04:20 UTC55m
2026-07-10 EWF - Jul 10, 23:45 UTCJul 11, 00:10 UTC25m
2026-07-10 EWF MBW → MBW Jul 10, 07:55 UTCJul 10, 09:30 UTC1h 35m
2026-07-10 EWF MBW → MBW Jul 10, 05:45 UTCJul 10, 06:55 UTC1h 10m
2026-07-10 EWF MBW → MBW Jul 10, 04:10 UTCJul 10, 05:05 UTC55m
2026-07-09 EWF MBW → MBW Jul 9, 04:15 UTCJul 9, 04:35 UTC20m
2026-07-09 EWF MBW → MBW Jul 9, 00:30 UTCJul 9, 03:15 UTC2h 45m
2026-07-08 EWF MBW → MBW Jul 8, 08:05 UTCJul 8, 09:35 UTC1h 30m
2026-07-08 EWF MBW → MBW Jul 8, 05:45 UTCJul 8, 06:15 UTC30m
2026-07-08 EWF MBW → MBW Jul 8, 03:05 UTCJul 8, 04:30 UTC1h 25m
2026-07-07 EWF MBW → MBW Jul 7, 05:55 UTCJul 7, 08:05 UTC2h 10m
2026-07-06 EWF MBW → MBW Jul 6, 08:15 UTCJul 6, 11:00 UTC2h 45m
2026-07-06 EWF - Jul 6, 05:00 UTCJul 6, 05:50 UTC50m
2026-07-06 EWF MBW → MBW Jul 6, 02:40 UTCJul 6, 04:45 UTC2h 5m
2026-07-05 EWF MBW → MBW Jul 5, 23:35 UTCJul 6, 01:15 UTC1h 40m
2026-07-05 EWF - Jul 5, 08:00 UTCJul 5, 09:45 UTC1h 45m
2026-07-05 EWF MBW → MBW Jul 5, 03:55 UTCJul 5, 04:15 UTC20m
2026-07-05 EWF MBW → MBW Jul 5, 00:00 UTCJul 5, 01:00 UTC1h 0m
2026-07-03 EWF MBW → MBW Jul 3, 23:15 UTCJul 3, 23:40 UTC25m
2026-07-01 EWF - Jul 1, 05:40 UTCJul 1, 06:10 UTC30m
2026-07-01 EWF - Jul 1, 04:40 UTCJul 1, 05:10 UTC30m
2026-06-30 EWF MBW → MBW Jun 30, 22:35 UTCJun 30, 23:50 UTC1h 15m
2026-06-29 EWF - Jun 29, 04:04 UTCJun 29, 04:45 UTC40m
2026-06-29 EWF - Jun 29, 02:25 UTCJun 29, 02:59 UTC35m
2026-06-29 EWF - Jun 29, 00:39 UTCJun 29, 01:25 UTC45m
2026-06-28 EWF - Jun 28, 23:04 UTCJun 28, 23:44 UTC40m
2026-06-28 EWF MBW → MBW Jun 28, 03:14 UTCJun 28, 05:49 UTC2h 35m
2026-06-28 EWF - Jun 28, 00:55 UTCJun 28, 01:34 UTC40m
2026-06-27 EWF MBW → MBW Jun 27, 04:54 UTCJun 27, 06:09 UTC1h 15m
2026-06-26 EWF MBW → MBW Jun 26, 04:20 UTCJun 26, 06:29 UTC2h 10m
2026-06-24 EWF MBW → MBW Jun 24, 03:10 UTCJun 24, 04:00 UTC50m
2026-06-23 EWF MBW → MBW Jun 23, 23:34 UTCJun 24, 02:30 UTC2h 55m
2026-06-23 EWF MBW → MBW Jun 23, 08:20 UTCJun 23, 08:59 UTC40m
2026-06-23 EWF MBW → MBW Jun 23, 02:20 UTCJun 23, 03:09 UTC50m
2026-06-22 EWF MBW → MBW Jun 22, 23:10 UTCJun 23, 00:24 UTC1h 15m
2026-06-22 EWF MBW → MBW Jun 22, 04:54 UTCJun 22, 06:35 UTC1h 40m
2026-06-22 EWF - Jun 22, 02:54 UTCJun 22, 04:04 UTC1h 10m
2026-06-22 EWF - Jun 22, 02:04 UTCJun 22, 02:50 UTC45m
2026-06-21 EWF MBW → MBW Jun 21, 22:34 UTCJun 22, 00:44 UTC2h 10m
2026-06-21 EWF MBW → MBW Jun 21, 03:49 UTCJun 21, 04:44 UTC55m
2026-06-21 EWF - Jun 21, 02:20 UTCJun 21, 02:55 UTC35m
2026-06-21 EWF - Jun 21, 01:05 UTCJun 21, 01:45 UTC40m
2026-06-17 EWF MBW → MBW Jun 17, 04:05 UTCJun 17, 06:55 UTC2h 50m
2026-06-16 EWF MBW → MBW Jun 16, 23:20 UTCJun 17, 02:00 UTC2h 40m
2026-06-15 EWF - Jun 15, 04:20 UTCJun 15, 04:55 UTC35m
2026-06-15 EWF - Jun 15, 02:44 UTCJun 15, 03:15 UTC30m

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 14h 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.