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sensors Mode-S transponder

7C19CE

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C19CE
Octal
37014716
Decimal
8,133,070
Country
AU
Tail
VH-FDS
Type
BE20
Broadcasting now · callsign FD425 · 15,000 ft
Flights observed
292
Distinct callsigns
1
Country
AU
Last broadcast
Jul 26, 13:30 UTC

Current position

7C19CE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C19CE 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
FD425 - 292 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FD425 - Jul 26, 12:55 UTCJul 26, 13:30 UTC35m
2026-07-26 FD425 - Jul 26, 12:05 UTCJul 26, 12:15 UTC10m
2026-07-26 FD425 - Jul 26, 10:25 UTCJul 26, 10:40 UTC15m
2026-07-26 FD425 - Jul 26, 09:40 UTCJul 26, 09:50 UTC10m
2026-07-26 FD425 - Jul 26, 05:20 UTCJul 26, 06:00 UTC40m
2026-07-26 FD425 - Jul 26, 03:50 UTCJul 26, 04:35 UTC45m
2026-07-26 FD425 - Jul 26, 00:05 UTCJul 26, 00:45 UTC40m
2026-07-25 FD425 - Jul 25, 22:10 UTCJul 25, 22:50 UTC40m
2026-07-25 FD425 - Jul 25, 15:40 UTCJul 25, 16:15 UTC35m
2026-07-25 FD425 - Jul 25, 13:50 UTCJul 25, 14:30 UTC40m
2026-07-25 FD425 - Jul 25, 11:25 UTCJul 25, 12:00 UTC35m
2026-07-25 FD425 - Jul 25, 10:10 UTCJul 25, 10:30 UTC20m
2026-07-25 FD425 - Jul 25, 09:15 UTCJul 25, 09:35 UTC20m
2026-07-25 FD425 - Jul 25, 05:15 UTCJul 25, 05:45 UTC30m
2026-07-25 FD425 - Jul 25, 03:45 UTCJul 25, 04:30 UTC45m
2026-07-25 FD425 - Jul 25, 01:35 UTCJul 25, 02:15 UTC40m
2026-07-24 FD425 - Jul 24, 23:00 UTCJul 24, 23:35 UTC35m
2026-07-24 FD425 - Jul 24, 16:00 UTCJul 24, 16:20 UTC20m
2026-07-24 FD425 - Jul 24, 13:55 UTCJul 24, 14:30 UTC35m
2026-07-24 FD425 - Jul 24, 11:50 UTCJul 24, 12:25 UTC35m
2026-07-24 FD425 - Jul 24, 06:45 UTCJul 24, 07:20 UTC35m
2026-07-24 FD425 - Jul 24, 04:40 UTCJul 24, 05:40 UTC1h 0m
2026-07-23 FD425 - Jul 23, 06:05 UTCJul 23, 06:35 UTC30m
2026-07-23 FD425 - Jul 23, 04:00 UTCJul 23, 04:30 UTC30m
2026-07-23 FD425 - Jul 23, 01:45 UTCJul 23, 02:15 UTC30m
2026-07-22 FD425 - Jul 22, 23:40 UTCJul 23, 00:20 UTC40m
2026-07-14 FD425 - Jul 14, 07:00 UTCJul 14, 07:35 UTC35m
2026-07-14 FD425 - Jul 14, 05:20 UTCJul 14, 06:00 UTC40m
2026-07-14 FD425 - Jul 14, 01:10 UTCJul 14, 01:45 UTC35m
2026-07-13 FD425 - Jul 13, 22:50 UTCJul 13, 23:30 UTC40m
2026-07-13 FD425 - Jul 13, 01:45 UTCJul 13, 02:15 UTC30m
2026-07-12 FD425 - Jul 12, 23:50 UTCJul 13, 00:05 UTC15m
2026-07-12 FD425 - Jul 12, 21:50 UTCJul 12, 23:00 UTC1h 10m
2026-07-12 FD425 - Jul 12, 14:45 UTCJul 12, 15:20 UTC35m
2026-07-12 FD425 - Jul 12, 13:20 UTCJul 12, 14:01 UTC40m
2026-07-12 FD425 - Jul 12, 11:50 UTCJul 12, 12:25 UTC35m
2026-07-12 FD425 - Jul 12, 10:20 UTCJul 12, 11:05 UTC45m
2026-07-12 FD425 - Jul 12, 04:05 UTCJul 12, 04:40 UTC35m
2026-07-12 FD425 - Jul 12, 02:01 UTCJul 12, 02:45 UTC45m
2026-07-11 FD425 - Jul 11, 13:40 UTCJul 11, 14:15 UTC35m
2026-07-11 FD425 - Jul 11, 12:15 UTCJul 11, 12:45 UTC30m
2026-07-11 FD425 - Jul 11, 10:15 UTCJul 11, 10:40 UTC25m
2026-07-11 FD425 - Jul 11, 09:05 UTCJul 11, 10:10 UTC1h 5m
2026-07-11 FD425 - Jul 11, 04:55 UTCJul 11, 05:31 UTC35m
2026-07-11 FD425 TWB → BNE Jul 11, 03:10 UTCJul 11, 03:45 UTC35m
2026-07-11 FD425 - Jul 11, 02:15 UTCJul 11, 02:35 UTC20m
2026-07-11 FD425 - Jul 11, 00:55 UTCJul 11, 01:20 UTC25m
2026-07-10 FD425 - Jul 10, 23:10 UTCJul 10, 23:50 UTC40m
2026-07-10 FD425 - Jul 10, 12:50 UTCJul 10, 13:25 UTC35m
2026-07-10 FD425 - Jul 10, 11:10 UTCJul 10, 11:35 UTC25m

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

Mode-S 7C19CE frequently asked

What is Mode-S code 7C19CE?
7C19CE is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-FDS.
Where is Mode-S 7C19CE registered?
Mode-S code 7C19CE is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C19CE broadcasting right now?
Yes. Mode-S 7C19CE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C19CE, octal 37014716, decimal 8,133,070.
What flights does 7C19CE operate?
Mode-S 7C19CE has broadcast 1 distinct callsign, including FD425.