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sensors Mode-S transponder

7C1CE4

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-FZQ · PILATUS PC-24 · operated by ROYAL FLYING DOCTOR SERVICE OF AUSTRALIA CENTRAL OPERATIONS

Hex
7C1CE4
Octal
37016344
Decimal
8,133,860
Country
AU
Tail
VH-FZQ
Type
PC24
No current signal · last broadcast 8d ago
Flights observed
47
Distinct callsigns
8
Country
AU
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 7C1CE4.

Country allocation

The ICAO 24-bit address 7C1CE4 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 8 distinct

Callsign Airline Flights Last seen
FD803 - 19 2026-07-23
FD805 - 7 2026-07-17
FD807 - 5 2026-07-14
FD508 - 5 2026-06-16
FD804 - 4 2026-07-18
FD503 - 3 2026-06-19
FD507 - 2 2026-06-22
FD501 - 2 2026-06-23

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-07-23 FD803 - Jul 23, 04:15 UTCJul 23, 04:45 UTC30m
2026-07-23 FD803 - Jul 23, 00:40 UTCJul 23, 01:10 UTC30m
2026-07-22 FD803 ADL → ADL Jul 22, 03:50 UTCJul 23, 01:10 UTC21h 20m
2026-07-22 FD803 - Jul 22, 01:35 UTCJul 22, 02:10 UTC35m
2026-07-21 FD803 ADL → ADL Jul 21, 04:20 UTCJul 22, 02:10 UTC21h 50m
2026-07-21 FD803 - Jul 21, 00:00 UTCJul 21, 00:30 UTC30m
2026-07-18 FD804 - Jul 18, 04:00 UTCJul 18, 04:30 UTC30m
2026-07-18 FD804 - Jul 18, 01:15 UTCJul 18, 01:54 UTC40m
2026-07-17 FD804 ADL → ADL Jul 17, 06:25 UTCJul 18, 01:54 UTC19h 30m
2026-07-17 FD805 - Jul 17, 02:10 UTCJul 17, 02:45 UTC35m
2026-07-15 FD805 - Jul 15, 03:35 UTCJul 15, 04:05 UTC30m
2026-07-14 FD803 MEB → ADL Jul 14, 18:20 UTCJul 15, 02:25 UTC8h 4m
2026-07-14 FD803 ADL → MEB Jul 14, 07:50 UTCJul 14, 17:20 UTC9h 30m
2026-07-14 FD807 - Jul 14, 04:50 UTCJul 14, 05:25 UTC35m
2026-07-10 FD805 - Jul 10, 05:15 UTCJul 10, 05:45 UTC30m
2026-07-10 FD805 - Jul 10, 02:20 UTCJul 10, 02:50 UTC30m
2026-07-09 FD805 - Jul 9, 05:05 UTCJul 10, 02:50 UTC21h 45m
2026-07-09 FD803 - Jul 9, 03:25 UTCJul 9, 03:55 UTC30m
2026-07-08 FD803 ADL → ADL Jul 8, 05:25 UTCJul 9, 03:55 UTC22h 30m
2026-07-08 FD803 - Jul 8, 01:15 UTCJul 8, 01:50 UTC35m
2026-07-07 FD807 ADL → ADL Jul 7, 05:35 UTCJul 8, 01:50 UTC20h 15m
2026-07-07 FD807 - Jul 7, 01:55 UTCJul 7, 02:25 UTC30m
2026-07-05 FD805 - Jul 5, 07:40 UTCJul 5, 08:10 UTC30m
2026-07-05 FD805 - Jul 5, 05:20 UTCJul 5, 05:50 UTC30m
2026-07-03 FD803 - Jul 3, 04:10 UTCJul 3, 04:45 UTC35m
2026-07-02 FD803 - Jul 2, 07:05 UTCJul 3, 02:10 UTC19h 5m
2026-07-02 FD807 ADL → ADL Jul 2, 06:45 UTCJul 3, 02:10 UTC19h 25m
2026-07-02 FD807 - Jul 2, 02:45 UTCJul 2, 03:15 UTC30m
2026-06-30 FD803 - Jun 30, 03:35 UTCJun 30, 04:05 UTC30m
2026-06-30 FD803 - Jun 30, 01:25 UTCJun 30, 02:00 UTC36m
2026-06-27 FD804 - Jun 27, 05:29 UTCJun 27, 05:59 UTC30m
2026-06-26 FD803 ADL → ADL Jun 26, 07:20 UTCJun 27, 02:39 UTC19h 20m
2026-06-26 FD803 - Jun 26, 01:54 UTCJun 26, 02:30 UTC35m
2026-06-25 FD803 - Jun 25, 03:04 UTCJun 26, 02:30 UTC23h 25m
2026-06-25 FD803 - Jun 25, 02:59 UTCJun 25, 03:34 UTC35m
2026-06-23 FD501 MEB → ADL Jun 23, 05:24 UTCJun 23, 06:34 UTC1h 10m
2026-06-23 FD501 ADL → MEB Jun 23, 01:35 UTCJun 23, 02:40 UTC1h 5m
2026-06-22 FD507 - Jun 22, 07:54 UTCJun 22, 08:50 UTC55m
2026-06-22 FD507 - Jun 22, 06:45 UTCJun 22, 07:04 UTC20m
2026-06-19 FD503 - Jun 19, 11:20 UTCJun 19, 11:49 UTC30m
2026-06-19 FD503 - Jun 19, 05:05 UTCJun 19, 05:14 UTC10m
2026-06-19 FD503 - Jun 19, 01:10 UTCJun 19, 01:45 UTC35m
2026-06-16 FD508 MEB → ADL Jun 16, 04:00 UTCJun 16, 05:20 UTC1h 20m
2026-06-16 FD508 ADL → MEB Jun 16, 00:50 UTCJun 16, 01:50 UTC1h 0m
2026-06-12 FD508 - Jun 12, 11:35 UTCJun 12, 11:55 UTC20m
2026-06-12 FD508 - Jun 12, 10:15 UTCJun 12, 10:35 UTC20m
2026-06-12 FD508 ADL → ADL Jun 12, 07:00 UTCJun 12, 07:20 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-FZQ page for operator, model, and routing details .

Mode-S 7C1CE4 frequently asked

What is Mode-S code 7C1CE4?
7C1CE4 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-FZQ.
Where is Mode-S 7C1CE4 registered?
Mode-S code 7C1CE4 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C1CE4 broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C1CE4, octal 37016344, decimal 8,133,860.
What flights does 7C1CE4 operate?
Mode-S 7C1CE4 has broadcast 8 distinct callsigns, including FD803, FD805, FD807, FD508, FD804.