Apparatus

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sensors Mode-S transponder

7C6FDE

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-WDS · AEROSPATIALE AS-350 Ecureuil · operated by STATE OF NEW SOUTH WALES REPRESENTED BY DEPARTMENT OF CLIMATE CHANGE, ENERGY, THE ENVIRONMENT AND WATER

Hex
7C6FDE
Octal
37067736
Decimal
8,155,102
Country
AU
Tail
VH-WDS
Type
AS50
No current signal · last broadcast 13d ago
Flights observed
46
Distinct callsigns
1
Country
AU
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S 7C6FDE.

Country allocation

The ICAO 24-bit address 7C6FDE 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
PKAR23 - 46 2026-07-23

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-07-23 PKAR23 - Jul 23, 02:35 UTCJul 23, 02:50 UTC15m
2026-07-23 PKAR23 - Jul 23, 01:25 UTCJul 23, 01:40 UTC15m
2026-07-23 PKAR23 - Jul 23, 00:45 UTCJul 23, 00:55 UTC10m
2026-07-22 PKAR23 - Jul 22, 23:30 UTCJul 23, 00:10 UTC40m
2026-07-22 PKAR23 - Jul 22, 03:55 UTCJul 22, 04:25 UTC30m
2026-07-21 PKAR23 - Jul 21, 23:15 UTCJul 22, 00:50 UTC1h 35m
2026-07-21 PKAR23 - Jul 21, 04:15 UTCJul 21, 04:50 UTC35m
2026-07-21 PKAR23 - Jul 21, 03:45 UTCJul 21, 04:10 UTC25m
2026-07-21 PKAR23 - Jul 21, 02:05 UTCJul 21, 02:40 UTC35m
2026-07-20 PKAR23 - Jul 20, 23:45 UTCJul 21, 00:35 UTC50m
2026-07-20 PKAR23 - Jul 20, 05:35 UTCJul 20, 06:10 UTC35m
2026-07-20 PKAR23 - Jul 20, 03:35 UTCJul 20, 04:30 UTC55m
2026-07-20 PKAR23 - Jul 20, 01:35 UTCJul 20, 01:45 UTC10m
2026-07-20 PKAR23 - Jul 20, 01:05 UTCJul 20, 01:30 UTC25m
2026-07-19 PKAR23 - Jul 19, 23:15 UTCJul 20, 00:00 UTC45m
2026-07-19 PKAR23 - Jul 19, 03:35 UTCJul 19, 03:50 UTC15m
2026-07-11 PKAR23 - Jul 11, 04:15 UTCJul 11, 04:45 UTC30m
2026-07-03 PKAR23 - Jul 3, 05:40 UTCJul 3, 05:50 UTC10m
2026-07-03 PKAR23 CDU → BWU Jul 3, 04:00 UTCJul 3, 04:35 UTC35m
2026-07-03 PKAR23 - Jul 3, 03:05 UTCJul 3, 03:55 UTC50m
2026-07-01 PKAR23 - Jul 1, 05:25 UTCJul 1, 06:15 UTC50m
2026-07-01 PKAR23 - Jul 1, 01:00 UTCJul 1, 04:55 UTC3h 55m
2026-06-30 PKAR23 - Jun 30, 22:55 UTCJun 30, 23:20 UTC25m
2026-06-29 PKAR23 - Jun 29, 04:39 UTCJun 29, 05:15 UTC35m
2026-06-28 PKAR23 - Jun 28, 03:05 UTCJun 28, 03:35 UTC30m
2026-06-21 PKAR23 - Jun 21, 05:10 UTCJun 21, 05:35 UTC25m
2026-06-08 PKAR23 - Jun 8, 01:20 UTCJun 8, 01:35 UTC15m
2026-06-06 PKAR23 - Jun 6, 05:25 UTCJun 6, 06:25 UTC1h 0m
2026-06-05 PKAR23 - Jun 5, 21:55 UTCJun 5, 22:05 UTC10m
2026-06-05 PKAR23 - Jun 5, 02:55 UTCJun 5, 05:00 UTC2h 5m
2026-06-04 PKAR23 - Jun 4, 23:40 UTCJun 5, 02:15 UTC2h 35m
2026-06-04 PKAR23 - Jun 4, 21:55 UTCJun 4, 22:10 UTC15m
2026-06-01 PKAR23 - Jun 1, 05:20 UTCJun 1, 05:40 UTC20m
2026-06-01 PKAR23 - Jun 1, 03:55 UTCJun 1, 04:40 UTC45m
2026-06-01 PKAR23 - Jun 1, 01:35 UTCJun 1, 03:05 UTC1h 30m
2026-05-31 PKAR23 - May 31, 23:40 UTCJun 1, 01:00 UTC1h 20m
2026-05-31 PKAR23 - May 31, 22:10 UTCMay 31, 22:35 UTC25m
2026-05-30 PKAR23 - May 30, 04:45 UTCMay 30, 05:45 UTC1h 0m
2026-05-19 PKAR23 - May 19, 01:15 UTCMay 19, 02:55 UTC1h 40m
2026-05-16 PKAR23 - May 16, 00:05 UTCMay 16, 00:25 UTC20m
2026-05-08 PKAR23 - May 8, 21:15 UTCMay 8, 21:40 UTC25m
2026-05-07 PKAR23 - May 7, 04:15 UTCMay 7, 04:20 UTC5m
2026-04-21 PKAR23 - Apr 21, 05:30 UTCApr 21, 06:00 UTC30m
2026-04-19 PKAR23 - Apr 19, 05:30 UTCApr 19, 06:05 UTC35m
2026-04-15 PKAR23 - Apr 15, 23:20 UTCApr 15, 23:50 UTC30m
2026-04-14 PKAR23 - Apr 14, 23:05 UTCApr 14, 23:40 UTC35m

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

Mode-S 7C6FDE frequently asked

What is Mode-S code 7C6FDE?
7C6FDE is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-WDS.
Where is Mode-S 7C6FDE registered?
Mode-S code 7C6FDE is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6FDE broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6FDE, octal 37067736, decimal 8,155,102.
What flights does 7C6FDE operate?
Mode-S 7C6FDE has broadcast 1 distinct callsign, including PKAR23.