Apparatus

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sensors Mode-S transponder

7C1C45

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-FVB · PILATUS PC-12 · operated by ROYAL FLYING DOCTOR SERVICE OF AUSTRALIA CENTRAL OPERATIONS

Hex
7C1C45
Octal
37016105
Decimal
8,133,701
Country
AU
Tail
VH-FVB
Type
PC12
No current signal · last broadcast Jul 26, 17:50 UTC
Flights observed
514
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 17:50 UTC

Last known position

Most recent position reported by Mode-S 7C1C45.

Country allocation

The ICAO 24-bit address 7C1C45 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 20 distinct

Callsign Airline Flights Last seen
FD532 Thai AirAsia 35 2026-07-26
FD513 Thai AirAsia 30 2026-07-23
FD533 - 27 2026-07-18
FD526 - 27 2026-07-16
FD540 - 25 2026-06-30
FD524 - 25 2026-07-25
FD522 - 25 2026-07-16
FD527 - 22 2026-06-29
FD517 Thai AirAsia 21 2026-07-23
FD575 - 19 2026-06-25
FD549 - 19 2026-07-01
FD536 - 19 2026-07-24
FD580 - 18 2026-06-24
FD531 Thai AirAsia 18 2026-07-19
FD516 Thai AirAsia 17 2026-05-31
FD528 - 15 2026-06-19
FD567 Thai AirAsia 13 2026-06-11
FD521 - 13 2026-07-20
FD519 Thai AirAsia 13 2026-06-01
FD518 Thai AirAsia 12 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FD532 DMK → CAN Jul 26, 17:15 UTCJul 26, 17:45 UTC30m
2026-07-26 FD532 DMK → CAN Jul 26, 16:05 UTCJul 26, 16:25 UTC20m
2026-07-26 FD532 DMK → CAN Jul 26, 15:05 UTCJul 26, 15:25 UTC20m
2026-07-26 FD532 DMK → CAN Jul 26, 12:45 UTCJul 26, 13:10 UTC25m
2026-07-26 FD532 DMK → CAN Jul 26, 10:50 UTCJul 26, 11:20 UTC30m
2026-07-26 FD525 MEB → ADL Jul 26, 06:00 UTCJul 26, 07:35 UTC1h 36m
2026-07-26 FD525 ADL → MEB Jul 26, 01:40 UTCJul 26, 03:15 UTC1h 35m
2026-07-25 FD524 - Jul 25, 17:25 UTCJul 25, 18:20 UTC55m
2026-07-25 FD524 - Jul 25, 15:35 UTCJul 25, 16:35 UTC1h 0m
2026-07-25 FD544 - Jul 25, 07:35 UTCJul 25, 08:20 UTC45m
2026-07-25 FD544 - Jul 25, 05:40 UTCJul 25, 05:50 UTC10m
2026-07-25 FD544 ADL → PLO Jul 25, 02:25 UTCJul 25, 03:10 UTC45m
2026-07-24 FD514 - Jul 24, 09:45 UTCJul 24, 10:05 UTC20m
2026-07-24 FD514 - Jul 24, 06:40 UTCJul 24, 07:05 UTC25m
2026-07-24 FD536 - Jul 24, 05:05 UTCJul 24, 05:25 UTC20m
2026-07-24 FD536 - Jul 24, 02:50 UTCJul 24, 03:15 UTC25m
2026-07-23 FD536 - Jul 23, 23:50 UTCJul 24, 00:50 UTC1h 0m
2026-07-23 FD536 - Jul 23, 22:05 UTCJul 23, 23:00 UTC55m
2026-07-23 FD513 JHB → DMK Jul 23, 20:30 UTCJul 23, 21:00 UTC30m
2026-07-23 FD513 JHB → DMK Jul 23, 18:20 UTCJul 23, 18:45 UTC25m
2026-07-23 FD513 JHB → DMK Jul 23, 16:05 UTCJul 23, 17:00 UTC55m
2026-07-23 FD513 JHB → DMK Jul 23, 14:35 UTCJul 23, 15:30 UTC55m
2026-07-23 FD513 JHB → DMK Jul 23, 12:35 UTCJul 23, 13:05 UTC30m
2026-07-23 FD513 JHB → DMK Jul 23, 10:55 UTCJul 23, 11:15 UTC20m
2026-07-23 FD517 HKG → DMK Jul 23, 07:10 UTCJul 23, 07:50 UTC40m
2026-07-23 FD517 HKG → DMK Jul 23, 04:55 UTCJul 23, 05:20 UTC25m
2026-07-23 FD517 HKG → DMK Jul 23, 02:45 UTCJul 23, 03:25 UTC40m
2026-07-23 FD517 HKG → DMK Jul 23, 00:20 UTCJul 23, 00:55 UTC35m
2026-07-22 FD536 - Jul 22, 19:35 UTCJul 22, 20:05 UTC30m
2026-07-22 FD536 - Jul 22, 17:40 UTCJul 22, 18:15 UTC35m
2026-07-22 FD536 - Jul 22, 16:10 UTCJul 22, 17:00 UTC50m
2026-07-22 FD536 - Jul 22, 14:20 UTCJul 22, 14:45 UTC25m
2026-07-22 FD536 - Jul 22, 12:30 UTCJul 22, 13:20 UTC50m
2026-07-22 FD536 - Jul 22, 11:30 UTCJul 22, 11:40 UTC10m
2026-07-22 FD524 - Jul 22, 03:55 UTCJul 22, 04:35 UTC40m
2026-07-22 FD524 - Jul 22, 00:05 UTCJul 22, 00:40 UTC35m
2026-07-21 FD532 - Jul 21, 16:50 UTCJul 21, 17:20 UTC30m
2026-07-21 FD532 - Jul 21, 13:00 UTCJul 21, 13:25 UTC25m
2026-07-21 FD536 - Jul 21, 09:30 UTCJul 21, 09:50 UTC20m
2026-07-21 FD536 - Jul 21, 08:30 UTCJul 21, 08:55 UTC25m
2026-07-21 FD536 - Jul 21, 06:10 UTCJul 21, 07:15 UTC1h 5m
2026-07-21 FD536 - Jul 21, 01:00 UTCJul 21, 01:45 UTC45m
2026-07-20 FD521 - Jul 20, 13:55 UTCJul 20, 14:55 UTC1h 0m
2026-07-20 FD521 - Jul 20, 11:45 UTCJul 20, 12:30 UTC45m
2026-07-20 FD532 - Jul 20, 08:40 UTCJul 20, 09:40 UTC1h 0m
2026-07-20 FD532 - Jul 20, 06:35 UTCJul 20, 07:20 UTC45m
2026-07-19 FD531 CAN → DMK Jul 19, 08:45 UTCJul 19, 09:40 UTC55m
2026-07-19 FD531 CAN → DMK Jul 19, 06:20 UTCJul 19, 07:40 UTC1h 20m
2026-07-18 FD533 - Jul 18, 08:55 UTCJul 18, 09:50 UTC55m
2026-07-18 FD533 - Jul 18, 07:05 UTCJul 18, 08:00 UTC55m

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

Mode-S 7C1C45 frequently asked

What is Mode-S code 7C1C45?
7C1C45 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-FVB.
Where is Mode-S 7C1C45 registered?
Mode-S code 7C1C45 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C1C45 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C1C45, octal 37016105, decimal 8,133,701.
What flights does 7C1C45 operate?
Mode-S 7C1C45 has broadcast 20 distinct callsigns, including FD532, FD513, FD533, FD526, FD540.