Apparatus

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sensors Mode-S transponder

7C3A6C

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-LTQ · BEECH 200 Super King Air · operated by ROYAL FLYING DOCTOR SERVICE OF AUSTRALIA (SOUTH EASTERN SECTION)

Hex
7C3A6C
Octal
37035154
Decimal
8,141,420
Country
AU
Tail
VH-LTQ
Type
BE20
No current signal · last broadcast 8h ago
Flights observed
73
Distinct callsigns
15
Country
AU
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 7C3A6C.

Country allocation

The ICAO 24-bit address 7C3A6C 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 15 distinct

Callsign Airline Flights Last seen
FD214 - 21 2026-06-19
FD227 - 13 2026-06-09
FD264 - 8 2026-06-17
FD296 - 4 2026-05-17
FD247 - 4 2026-06-10
FD232 - 4 2026-05-23
FD231 - 4 2026-06-22
FD278 - 2 2026-05-15
FD277 - 2 2026-05-09
FD269 - 2 2026-05-25
FD258 - 2 2026-06-22
FD248 - 2 2026-05-12
FD234 - 2 2026-06-23
AM769 - 2 2026-04-30
FD241 Thai AirAsia 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-23 FD234 - Jun 23, 03:49 UTCJun 23, 04:09 UTC20m
2026-06-23 FD234 - Jun 23, 02:09 UTCJun 23, 02:20 UTC10m
2026-06-22 FD258 - Jun 22, 23:45 UTCJun 23, 00:24 UTC40m
2026-06-22 FD231 - Jun 22, 03:40 UTCJun 22, 04:09 UTC30m
2026-06-22 FD231 - Jun 22, 02:10 UTCJun 22, 02:34 UTC25m
2026-06-19 FD214 - Jun 19, 08:54 UTCJun 19, 09:19 UTC25m
2026-06-19 FD214 - Jun 19, 07:09 UTCJun 19, 07:39 UTC30m
2026-06-19 FD214 - Jun 19, 05:19 UTCJun 19, 05:54 UTC35m
2026-06-19 FD214 - Jun 19, 02:24 UTCJun 19, 03:05 UTC40m
2026-06-18 FD214 - Jun 18, 07:45 UTCJun 18, 08:25 UTC40m
2026-06-18 FD214 - Jun 18, 05:15 UTCJun 18, 05:45 UTC30m
2026-06-18 FD214 - Jun 18, 03:05 UTCJun 18, 03:25 UTC20m
2026-06-17 FD264 - Jun 17, 07:05 UTCJun 17, 07:40 UTC35m
2026-06-17 FD264 - Jun 17, 05:50 UTCJun 17, 06:20 UTC30m
2026-06-17 FD264 - Jun 17, 04:40 UTCJun 17, 05:40 UTC1h 0m
2026-06-17 FD264 - Jun 17, 03:20 UTCJun 17, 03:55 UTC35m
2026-06-16 FD264 - Jun 16, 08:44 UTCJun 16, 09:20 UTC35m
2026-06-16 FD264 - Jun 16, 06:15 UTCJun 16, 06:50 UTC35m
2026-06-16 FD264 - Jun 16, 04:39 UTCJun 16, 05:05 UTC25m
2026-06-16 FD264 - Jun 16, 02:54 UTCJun 16, 03:15 UTC20m
2026-06-15 FD214 - Jun 15, 06:24 UTCJun 15, 06:55 UTC30m
2026-06-15 FD214 - Jun 15, 04:45 UTCJun 15, 05:10 UTC25m
2026-06-15 FD214 - Jun 15, 03:45 UTCJun 15, 04:15 UTC30m
2026-06-15 FD214 - Jun 15, 02:15 UTCJun 15, 02:39 UTC25m
2026-06-12 FD214 - Jun 12, 07:15 UTCJun 12, 07:45 UTC30m
2026-06-12 FD214 - Jun 12, 04:25 UTCJun 12, 04:50 UTC25m
2026-06-11 FD231 TPE → DMK Jun 11, 05:30 UTCJun 11, 06:10 UTC40m
2026-06-11 FD231 TPE → DMK Jun 11, 02:50 UTCJun 11, 03:25 UTC35m
2026-06-10 FD247 - Jun 10, 08:55 UTCJun 10, 09:25 UTC30m
2026-06-10 FD247 - Jun 10, 06:30 UTCJun 10, 06:55 UTC25m
2026-06-10 FD247 - Jun 10, 04:50 UTCJun 10, 05:25 UTC35m
2026-06-10 FD247 - Jun 10, 03:05 UTCJun 10, 03:45 UTC40m
2026-06-09 FD227 - Jun 9, 05:25 UTCJun 9, 06:15 UTC50m
2026-06-09 FD227 - Jun 9, 02:05 UTCJun 9, 02:50 UTC45m
2026-06-08 FD214 - Jun 8, 08:20 UTCJun 8, 09:00 UTC40m
2026-06-08 FD214 - Jun 8, 06:10 UTCJun 8, 06:45 UTC35m
2026-06-08 FD214 - Jun 8, 04:15 UTCJun 8, 04:45 UTC30m
2026-06-08 FD214 - Jun 8, 02:45 UTCJun 8, 03:10 UTC25m
2026-06-05 FD227 - Jun 5, 08:00 UTCJun 5, 08:45 UTC45m
2026-06-05 FD227 - Jun 5, 02:25 UTCJun 5, 02:55 UTC30m
2026-06-04 FD227 - Jun 4, 08:50 UTCJun 4, 09:30 UTC40m
2026-06-04 FD227 - Jun 4, 05:50 UTCJun 4, 06:25 UTC35m
2026-06-04 FD227 - Jun 4, 04:35 UTCJun 4, 05:15 UTC40m
2026-06-04 FD227 - Jun 4, 02:15 UTCJun 4, 02:55 UTC40m
2026-06-03 FD227 - Jun 3, 01:20 UTCJun 3, 01:50 UTC30m
2026-06-02 FD227 - Jun 2, 08:30 UTCJun 2, 09:05 UTC35m
2026-06-02 FD227 - Jun 2, 05:55 UTCJun 2, 06:35 UTC40m
2026-06-01 FD227 - Jun 1, 05:15 UTCJun 1, 05:45 UTC30m
2026-06-01 FD227 - Jun 1, 03:15 UTCJun 1, 03:45 UTC30m
2026-05-29 FD214 - May 29, 08:45 UTCMay 29, 09:15 UTC30m

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

Mode-S 7C3A6C frequently asked

What is Mode-S code 7C3A6C?
7C3A6C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-LTQ.
Where is Mode-S 7C3A6C registered?
Mode-S code 7C3A6C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C3A6C broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C3A6C, octal 37035154, decimal 8,141,420.
What flights does 7C3A6C operate?
Mode-S 7C3A6C has broadcast 15 distinct callsigns, including FD214, FD227, FD264, FD296, FD247.