Apparatus

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sensors Mode-S transponder

7C109A

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-DKC · CESSNA 182 Skylane · operated by MELBOURNE AVIATION GROUP PROPRIETARY LIMITED

Hex
7C109A
Octal
37010232
Decimal
8,130,714
Country
AU
Tail
VH-DKC
Type
C182
No current signal · last broadcast 1d ago
Flights observed
43
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C109A.

Country allocation

The ICAO 24-bit address 7C109A 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
DKC - 43 2026-06-08

Recent flights last 43

DateFlightRouteTakeoffLandingDuration
2026-06-08 DKC MBW → MBW Jun 8, 03:15 UTCJun 8, 04:20 UTC1h 5m
2026-05-30 DKC MBW → MBW May 30, 08:30 UTCMay 30, 09:15 UTC45m
2026-05-28 DKC - May 28, 23:10 UTCMay 28, 23:35 UTC25m
2026-05-28 DKC - May 28, 20:45 UTCMay 28, 21:15 UTC30m
2026-05-28 DKC - May 28, 07:00 UTCMay 28, 08:05 UTC1h 5m
2026-05-28 DKC - May 28, 06:05 UTCMay 28, 06:30 UTC25m
2026-05-28 DKC - May 28, 04:55 UTCMay 28, 05:30 UTC35m
2026-05-25 DKC - May 25, 08:20 UTCMay 25, 08:50 UTC30m
2026-05-25 DKC - May 25, 04:00 UTCMay 25, 04:45 UTC45m
2026-05-25 DKC MBW → MEB May 25, 03:10 UTCMay 25, 03:25 UTC15m
2026-05-23 DKC MBW → MBW May 23, 02:35 UTCMay 23, 03:35 UTC1h 0m
2026-05-22 DKC MBW → MBW May 22, 09:10 UTCMay 22, 10:15 UTC1h 5m
2026-05-20 DKC MBW → MBW May 20, 06:15 UTCMay 20, 06:45 UTC30m
2026-05-16 DKC MBW → MBW May 16, 07:55 UTCMay 16, 08:20 UTC25m
2026-05-15 DKC MBW → MBW May 15, 00:50 UTCMay 15, 01:55 UTC1h 5m
2026-05-14 DKC MBW → MBW May 14, 07:50 UTCMay 14, 08:05 UTC15m
2026-05-14 DKC MBW → MBW May 14, 02:45 UTCMay 14, 03:55 UTC1h 10m
2026-05-12 DKC - May 12, 07:40 UTCMay 12, 09:15 UTC1h 35m
2026-05-12 DKC - May 12, 03:00 UTCMay 12, 03:10 UTC10m
2026-05-11 DKC MBW → MBW May 11, 04:40 UTCMay 11, 05:10 UTC30m
2026-05-09 DKC MBW → MBW May 9, 03:15 UTCMay 9, 04:30 UTC1h 15m
2026-05-07 DKC MEB → MBW May 7, 03:45 UTCMay 7, 04:05 UTC20m
2026-05-07 DKC - May 7, 02:05 UTCMay 7, 02:40 UTC35m
2026-05-06 DKC - May 6, 22:00 UTCMay 6, 22:35 UTC35m
2026-05-05 DKC MBW → MBW May 5, 04:35 UTCMay 5, 05:30 UTC55m
2026-05-02 DKC MBW → MBW May 2, 04:35 UTCMay 2, 05:00 UTC25m
2026-05-01 DKC - May 1, 03:20 UTCMay 1, 04:05 UTC45m
2026-05-01 DKC - May 1, 02:00 UTCMay 1, 02:35 UTC35m
2026-05-01 DKC - May 1, 00:55 UTCMay 1, 01:20 UTC25m
2026-04-30 DKC MBW → MBW Apr 30, 04:10 UTCApr 30, 05:00 UTC50m
2026-04-30 DKC MBW → MBW Apr 30, 01:40 UTCApr 30, 02:25 UTC45m
2026-04-28 DKC MEB → MBW Apr 28, 00:20 UTCApr 28, 00:35 UTC15m
2026-04-27 DKC - Apr 27, 23:20 UTCApr 27, 23:55 UTC35m
2026-04-27 DKC - Apr 27, 19:40 UTCApr 27, 20:15 UTC35m
2026-04-26 DKC - Apr 26, 23:10 UTCApr 26, 23:45 UTC35m
2026-04-26 DKC - Apr 26, 20:05 UTCApr 26, 20:40 UTC35m
2026-04-26 DKC - Apr 26, 01:45 UTCApr 26, 02:55 UTC1h 10m
2026-04-25 DKC - Apr 25, 06:15 UTCApr 25, 06:30 UTC15m
2026-04-25 DKC - Apr 25, 05:05 UTCApr 25, 05:40 UTC35m
2026-04-23 DKC MBW → MBW Apr 23, 04:20 UTCApr 23, 06:01 UTC1h 41m
2026-04-19 DKC MBW → MBW Apr 19, 07:10 UTCApr 19, 07:50 UTC40m
2026-04-19 DKC MBW → MBW Apr 19, 00:25 UTCApr 19, 01:35 UTC1h 10m
2026-04-15 DKC MBW → MBW Apr 15, 09:00 UTCApr 15, 10:55 UTC1h 55m

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

Mode-S 7C109A frequently asked

What is Mode-S code 7C109A?
7C109A is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-DKC.
Where is Mode-S 7C109A registered?
Mode-S code 7C109A is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C109A broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C109A, octal 37010232, decimal 8,130,714.
What flights does 7C109A operate?
Mode-S 7C109A has broadcast 1 distinct callsign, including DKC.