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sensors Mode-S transponder

7C19C2

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-FDG · BEECH 200 Super King Air · operated by ROYAL FLYING DOCTOR SERVICE OF AUSTRALIA (QUEENSLAND SECTION) LIMITED

Hex
7C19C2
Octal
37014702
Decimal
8,133,058
Country
AU
Tail
VH-FDG
Type
BE20
No current signal · last broadcast 15d ago
Flights observed
220
Distinct callsigns
1
Country
AU
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 7C19C2.

Country allocation

The ICAO 24-bit address 7C19C2 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
FD456 - 220 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 FD456 - Jul 25, 05:05 UTCJul 25, 05:15 UTC10m
2026-07-25 FD456 - Jul 25, 04:15 UTCJul 25, 04:25 UTC10m
2026-07-25 FD456 - Jul 25, 01:45 UTCJul 25, 02:00 UTC15m
2026-07-25 FD456 - Jul 25, 00:25 UTCJul 25, 00:35 UTC10m
2026-07-24 FD456 - Jul 24, 16:00 UTCJul 24, 16:10 UTC10m
2026-07-24 FD456 - Jul 24, 15:05 UTCJul 24, 15:15 UTC10m
2026-07-24 FD456 - Jul 24, 13:25 UTCJul 24, 13:40 UTC15m
2026-07-24 FD456 - Jul 24, 03:05 UTCJul 24, 03:35 UTC30m
2026-07-24 FD456 - Jul 24, 01:05 UTCJul 24, 01:35 UTC30m
2026-07-24 FD456 - Jul 24, 00:20 UTCJul 24, 01:00 UTC40m
2026-07-23 FD456 - Jul 23, 14:20 UTCJul 23, 14:35 UTC15m
2026-07-23 FD456 - Jul 23, 13:20 UTCJul 23, 13:40 UTC20m
2026-07-23 FD456 - Jul 23, 11:20 UTCJul 23, 11:40 UTC20m
2026-07-23 FD456 - Jul 23, 10:35 UTCJul 23, 11:15 UTC40m
2026-07-23 FD456 - Jul 23, 03:05 UTCJul 23, 03:20 UTC15m
2026-07-23 FD456 - Jul 23, 01:40 UTCJul 23, 01:50 UTC10m
2026-07-22 FD456 - Jul 22, 15:05 UTCJul 22, 15:15 UTC10m
2026-07-22 FD456 - Jul 22, 12:00 UTCJul 22, 12:15 UTC15m
2026-07-22 FD456 - Jul 22, 00:40 UTCJul 22, 01:10 UTC30m
2026-07-21 FD456 - Jul 21, 22:50 UTCJul 21, 23:45 UTC55m
2026-07-21 FD456 - Jul 21, 12:00 UTCJul 21, 12:10 UTC10m
2026-07-21 FD456 - Jul 21, 04:25 UTCJul 21, 04:45 UTC20m
2026-07-21 FD456 - Jul 21, 02:45 UTCJul 21, 03:15 UTC30m
2026-07-21 FD456 - Jul 21, 01:20 UTCJul 21, 01:45 UTC25m
2026-07-21 FD456 - Jul 21, 00:30 UTCJul 21, 01:15 UTC45m
2026-07-20 FD456 - Jul 20, 18:00 UTCJul 20, 18:20 UTC20m
2026-07-20 FD456 - Jul 20, 16:35 UTCJul 20, 16:50 UTC15m
2026-07-17 FD456 - Jul 17, 04:10 UTCJul 17, 04:29 UTC20m
2026-07-17 FD456 WTB → TWB Jul 17, 03:14 UTCJul 17, 03:25 UTC10m
2026-07-17 FD456 - Jul 17, 01:20 UTCJul 17, 01:39 UTC20m
2026-07-17 FD456 - Jul 17, 00:35 UTCJul 17, 01:15 UTC40m
2026-07-16 FD456 - Jul 16, 18:00 UTCJul 16, 18:15 UTC15m
2026-07-16 FD456 - Jul 16, 16:05 UTCJul 16, 16:25 UTC20m
2026-07-16 FD456 - Jul 16, 12:40 UTCJul 16, 13:00 UTC20m
2026-07-16 FD456 - Jul 16, 11:45 UTCJul 16, 12:00 UTC15m
2026-07-10 FD456 - Jul 10, 04:55 UTCJul 10, 05:30 UTC35m
2026-07-10 FD456 - Jul 10, 02:30 UTCJul 10, 03:05 UTC35m
2026-07-10 FD456 - Jul 10, 00:50 UTCJul 10, 01:05 UTC15m
2026-07-09 FD456 - Jul 9, 23:50 UTCJul 10, 00:10 UTC20m
2026-07-09 FD456 - Jul 9, 13:10 UTCJul 9, 13:55 UTC45m
2026-07-09 FD456 TWB → BNE Jul 9, 11:45 UTCJul 9, 12:25 UTC40m
2026-07-09 FD456 - Jul 9, 10:50 UTCJul 9, 11:10 UTC20m
2026-07-09 FD456 - Jul 9, 02:45 UTCJul 9, 03:00 UTC15m
2026-07-09 FD456 - Jul 9, 00:25 UTCJul 9, 00:40 UTC15m
2026-07-08 FD456 - Jul 8, 13:00 UTCJul 8, 13:10 UTC10m
2026-07-08 FD456 - Jul 8, 12:15 UTCJul 8, 12:25 UTC10m
2026-07-07 FD456 - Jul 7, 14:50 UTCJul 7, 15:05 UTC15m
2026-07-07 FD456 - Jul 7, 13:45 UTCJul 7, 14:10 UTC25m
2026-07-07 FD456 - Jul 7, 12:10 UTCJul 7, 12:55 UTC45m
2026-07-07 FD456 - Jul 7, 01:30 UTCJul 7, 01:50 UTC20m

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

Mode-S 7C19C2 frequently asked

What is Mode-S code 7C19C2?
7C19C2 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-FDG.
Where is Mode-S 7C19C2 registered?
Mode-S code 7C19C2 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C19C2 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C19C2, octal 37014702, decimal 8,133,058.
What flights does 7C19C2 operate?
Mode-S 7C19C2 has broadcast 1 distinct callsign, including FD456.