Apparatus

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sensors Mode-S transponder

7C753A

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-XFW · DE HAVILLAND DHC-8-300 Dash 8 · operated by SKIPPERS AVIATION PTY LTD

Hex
7C753A
Octal
37072472
Decimal
8,156,474
Country
AU
Tail
VH-XFW
Type
DH8C
No current signal · last broadcast 1h ago
Flights observed
197
Distinct callsigns
20
Country
AU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7C753A.

Country allocation

The ICAO 24-bit address 7C753A 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 20 distinct

Callsign Airline Flights Last seen
PY5509 - 24 2026-07-08
PY4003 - 13 2026-07-07
PY4001 - 13 2026-07-06
PY1932 - 13 2026-07-10
PY1931 - 13 2026-07-10
PY4004 - 12 2026-07-07
PY9935 - 11 2026-07-09
PY9934 - 11 2026-07-08
PY3034 - 11 2026-07-13
PY3033 - 11 2026-07-13
PY4002 - 10 2026-07-07
PY3032 - 8 2026-07-06
PY3031 - 8 2026-07-05
PY6004 - 5 2026-07-09
PY5510 - 5 2026-07-08
PY1936 - 5 2026-07-13
PY1935 - 5 2026-07-13
PY6003 - 4 2026-07-09
PY5511 - 3 2026-06-03
PY4324 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 PY4324 - Jul 14, 08:45 UTCJul 14, 09:30 UTC45m
2026-07-14 PY4323 - Jul 14, 06:15 UTCJul 14, 06:55 UTC40m
2026-07-14 PY4322 - Jul 14, 02:45 UTCJul 14, 03:35 UTC50m
2026-07-14 PY4321 - Jul 14, 00:20 UTCJul 14, 00:55 UTC35m
2026-07-13 PY3034 - Jul 13, 08:35 UTCJul 13, 09:15 UTC40m
2026-07-13 PY3033 - Jul 13, 06:35 UTCJul 13, 07:15 UTC40m
2026-07-13 PY1936 - Jul 13, 04:45 UTCJul 13, 05:55 UTC1h 10m
2026-07-13 PY1935 - Jul 13, 00:10 UTCJul 13, 00:50 UTC40m
2026-07-10 PY1932 - Jul 10, 09:45 UTCJul 10, 10:25 UTC40m
2026-07-10 PY1931 - Jul 10, 05:15 UTCJul 10, 05:45 UTC30m
2026-07-09 PY6004 - Jul 9, 08:25 UTCJul 9, 08:55 UTC30m
2026-07-09 PY6003 - Jul 9, 05:55 UTCJul 9, 06:55 UTC1h 0m
2026-07-09 PY9935 - Jul 9, 03:30 UTCJul 9, 04:30 UTC1h 0m
2026-07-08 PY9934 - Jul 8, 22:40 UTCJul 8, 23:20 UTC40m
2026-07-08 PY5510 - Jul 8, 05:25 UTCJul 8, 05:55 UTC30m
2026-07-08 PY5509 - Jul 8, 04:05 UTCJul 8, 05:20 UTC1h 15m
2026-07-07 PY5509 - Jul 7, 23:50 UTCJul 8, 01:15 UTC1h 25m
2026-07-07 PY5509 PER → BQB Jul 7, 22:30 UTCJul 7, 23:15 UTC45m
2026-07-07 PY4004 - Jul 7, 08:35 UTCJul 7, 09:05 UTC30m
2026-07-07 PY4003 - Jul 7, 05:20 UTCJul 7, 05:55 UTC35m
2026-07-07 PY4002 - Jul 7, 01:35 UTCJul 7, 02:05 UTC30m
2026-07-06 PY4001 - Jul 6, 23:00 UTCJul 6, 23:35 UTC35m
2026-07-06 PY3032 - Jul 6, 01:15 UTCJul 6, 01:55 UTC40m
2026-07-05 PY3031 - Jul 5, 23:00 UTCJul 5, 23:35 UTC35m
2026-07-03 PY1936 - Jul 3, 07:30 UTCJul 3, 08:15 UTC45m
2026-07-03 PY1935 - Jul 3, 03:20 UTCJul 3, 03:55 UTC35m
2026-06-29 PY3032 - Jun 29, 01:10 UTCJun 29, 02:00 UTC50m
2026-06-28 PY3031 - Jun 28, 22:49 UTCJun 28, 23:29 UTC40m
2026-06-26 PY1932 - Jun 26, 10:25 UTCJun 26, 11:09 UTC45m
2026-06-26 PY1931 - Jun 26, 05:19 UTCJun 26, 05:55 UTC35m
2026-06-26 PY3036 - Jun 26, 01:24 UTCJun 26, 02:14 UTC50m
2026-06-25 PY3035 - Jun 25, 23:14 UTCJun 26, 00:05 UTC50m
2026-06-25 PY3034 - Jun 25, 09:55 UTCJun 25, 10:39 UTC45m
2026-06-25 PY3033 - Jun 25, 07:09 UTCJun 25, 07:49 UTC40m
2026-06-25 PY9935 - Jun 25, 03:44 UTCJun 25, 04:40 UTC55m
2026-06-24 PY9934 - Jun 24, 22:39 UTCJun 24, 23:20 UTC40m
2026-06-24 PY5509 - Jun 24, 03:55 UTCJun 24, 05:54 UTC2h 0m
2026-06-23 PY5509 - Jun 23, 23:29 UTCJun 24, 00:15 UTC45m
2026-06-23 PY5509 PER → BQB Jun 23, 22:25 UTCJun 23, 23:24 UTC1h 0m
2026-06-23 PY4004 - Jun 23, 08:09 UTCJun 23, 08:39 UTC30m
2026-06-23 PY4003 - Jun 23, 05:20 UTCJun 23, 05:59 UTC40m
2026-06-23 PY4002 - Jun 23, 02:20 UTCJun 23, 03:00 UTC40m
2026-06-23 PY4002 - Jun 23, 01:25 UTCJun 23, 01:45 UTC20m
2026-06-22 PY4001 PER → KGI Jun 22, 23:29 UTCJun 23, 00:45 UTC1h 15m
2026-06-22 PY3032 - Jun 22, 01:10 UTCJun 22, 01:44 UTC35m
2026-06-21 PY3031 - Jun 21, 22:40 UTCJun 21, 23:14 UTC35m
2026-06-19 PY1932 - Jun 19, 09:14 UTCJun 19, 09:49 UTC35m
2026-06-19 PY1931 - Jun 19, 05:09 UTCJun 19, 05:45 UTC35m
2026-06-18 PY3034 - Jun 18, 09:10 UTCJun 18, 09:50 UTC40m
2026-06-18 PY3033 - Jun 18, 06:40 UTCJun 18, 07:20 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-XFW page for operator, model, and routing details .

Mode-S 7C753A frequently asked

What is Mode-S code 7C753A?
7C753A is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-XFW.
Where is Mode-S 7C753A registered?
Mode-S code 7C753A is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C753A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C753A, octal 37072472, decimal 8,156,474.
What flights does 7C753A operate?
Mode-S 7C753A has broadcast 20 distinct callsigns, including PY5509, PY4003, PY4001, PY1932, PY1931.