Apparatus

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sensors Mode-S transponder

7C7F08

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ZDM · CESSNA 525A Citation CJ2 · operated by AIR GOLD COAST PTY. LTD.

Hex
7C7F08
Octal
37077410
Decimal
8,158,984
Country
AU
Tail
VH-ZDM
Type
C25A
Transponder active on ground
Flights observed
40
Distinct callsigns
1
Country
AU
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 7C7F08.

Country allocation

The ICAO 24-bit address 7C7F08 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
ZDM - 40 2026-05-28

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-05-28 ZDM - May 28, 01:50 UTCMay 28, 02:55 UTC1h 5m
2026-05-27 ZDM - May 27, 03:24 UTCMay 27, 05:35 UTC2h 10m
2026-05-27 ZDM - May 27, 00:44 UTCMay 27, 01:54 UTC1h 10m
2026-05-26 ZDM - May 26, 22:44 UTCMay 26, 23:45 UTC1h 0m
2026-05-21 ZDM - May 21, 21:25 UTCMay 21, 22:10 UTC45m
2026-05-20 ZDM - May 20, 22:35 UTCMay 21, 22:00 UTC23h 25m
2026-05-14 ZDM - May 14, 06:30 UTCMay 14, 06:50 UTC20m
2026-05-14 ZDM - May 14, 05:30 UTCMay 14, 06:20 UTC50m
2026-05-13 ZDM - May 13, 22:10 UTCMay 13, 23:05 UTC55m
2026-05-13 ZDM - May 13, 21:10 UTCMay 13, 21:20 UTC10m
2026-05-12 ZDM - May 12, 06:30 UTCMay 12, 08:05 UTC1h 35m
2026-05-11 ZDM - May 11, 04:15 UTCMay 11, 05:05 UTC50m
2026-05-11 ZDM - May 11, 02:25 UTCMay 11, 03:15 UTC50m
2026-05-10 ZDM - May 10, 21:14 UTCMay 11, 02:05 UTC4h 50m
2026-05-09 ZDM - May 9, 23:20 UTCMay 10, 00:34 UTC1h 15m
2026-05-09 ZDM - May 9, 20:34 UTCMay 9, 21:55 UTC1h 20m
2026-05-07 ZDM - May 7, 02:25 UTCMay 7, 06:10 UTC3h 45m
2026-05-07 ZDM - May 7, 01:05 UTCMay 7, 01:55 UTC50m
2026-05-06 ZDM - May 6, 23:25 UTCMay 7, 00:30 UTC1h 5m
2026-05-04 ZDM - May 4, 03:24 UTCMay 4, 06:20 UTC2h 55m
2026-05-04 ZDM - May 4, 02:19 UTCMay 4, 02:50 UTC30m
2026-05-04 ZDM - May 4, 01:05 UTCMay 4, 01:20 UTC15m
2026-05-03 ZDM - May 3, 08:45 UTCMay 3, 09:50 UTC1h 5m
2026-05-03 ZDM - May 3, 07:20 UTCMay 3, 07:55 UTC35m
2026-05-02 ZDM - May 2, 22:40 UTCMay 2, 23:15 UTC35m
2026-05-02 ZDM - May 2, 08:15 UTCMay 2, 09:45 UTC1h 30m
2026-05-02 ZDM - May 2, 02:20 UTCMay 2, 03:40 UTC1h 20m
2026-05-01 ZDM - May 1, 23:45 UTCMay 2, 01:05 UTC1h 20m
2026-05-01 ZDM - May 1, 08:45 UTCMay 1, 09:55 UTC1h 10m
2026-04-30 ZDM - Apr 30, 23:55 UTCMay 1, 03:10 UTC3h 15m
2026-04-29 ZDM - Apr 29, 01:45 UTCApr 29, 02:40 UTC55m
2026-04-29 ZDM - Apr 29, 00:20 UTCApr 29, 01:15 UTC55m
2026-04-28 ZDM - Apr 28, 23:40 UTCApr 28, 23:54 UTC15m
2026-04-17 ZDM - Apr 17, 11:20 UTCApr 17, 11:45 UTC25m
2026-04-17 ZDM - Apr 17, 11:05 UTCApr 17, 11:15 UTC10m
2026-04-17 ZDM - Apr 17, 09:40 UTCApr 17, 10:25 UTC45m
2026-04-17 ZDM - Apr 17, 05:20 UTCApr 17, 05:40 UTC20m
2026-04-17 ZDM - Apr 17, 04:35 UTCApr 17, 05:15 UTC40m
2026-04-14 ZDM - Apr 14, 07:40 UTCApr 14, 08:05 UTC25m
2026-04-14 ZDM - Apr 14, 05:55 UTCApr 14, 07:10 UTC1h 15m

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

Mode-S 7C7F08 frequently asked

What is Mode-S code 7C7F08?
7C7F08 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZDM.
Where is Mode-S 7C7F08 registered?
Mode-S code 7C7F08 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7F08 broadcasting right now?
Mode-S 7C7F08 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7F08, octal 37077410, decimal 8,158,984.
What flights does 7C7F08 operate?
Mode-S 7C7F08 has broadcast 1 distinct callsign, including ZDM.