Apparatus

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sensors Mode-S transponder

7C530E

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-QOW · DE HAVILLAND DHC-8-400 Dash 8 · operated by SUNSTATE AIRLINES (QLD) PTY. LIMITED

Hex
7C530E
Octal
37051416
Decimal
8,147,726
Country
AU
Tail
VH-QOW
Type
DH8D
No current signal · last broadcast 4d ago
Flights observed
494
Distinct callsigns
20
Country
AU
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 7C530E.

Country allocation

The ICAO 24-bit address 7C530E 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
QLK41D - 8 2026-07-11
QLK40D - 8 2026-07-11
QLK35D - 8 2026-07-26
QLK208D - 8 2026-07-12
QLK444D - 7 2026-07-23
QLK438D - 7 2026-07-14
QLK435D - 7 2026-07-14
QLK42D - 7 2026-07-11
QLK39D - 7 2026-07-24
QLK36D - 7 2026-07-26
QLK227D - 7 2026-07-21
QLK497D - 6 2026-06-21
QLK461D - 6 2026-07-14
QLK439D - 6 2026-07-23
QLK38D - 6 2026-07-23
QLK220D - 6 2026-07-21
QLK20D - 6 2026-07-10
QLK169D - 6 2026-07-24
QLK166D - 6 2026-07-09
QLK164D - 6 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QLK401D - Jul 26, 08:35 UTCJul 26, 09:15 UTC40m
2026-07-26 QLK36D - Jul 26, 06:00 UTCJul 26, 07:10 UTC1h 11m
2026-07-26 QLK35D - Jul 26, 04:05 UTCJul 26, 05:15 UTC1h 10m
2026-07-26 QLK404D - Jul 26, 02:35 UTCJul 26, 03:05 UTC30m
2026-07-25 QLK403D - Jul 25, 23:05 UTCJul 25, 23:45 UTC40m
2026-07-25 QLK3D - Jul 25, 00:00 UTCJul 25, 01:00 UTC1h 0m
2026-07-24 QLK2D SYD → TMW Jul 24, 22:45 UTCJul 24, 23:25 UTC40m
2026-07-24 QLK19D - Jul 24, 20:45 UTCJul 24, 21:45 UTC1h 0m
2026-07-24 QLK26D - Jul 24, 09:25 UTCJul 24, 10:05 UTC40m
2026-07-24 QLK169D - Jul 24, 07:05 UTCJul 24, 07:55 UTC50m
2026-07-24 QLK164D SYD → PQQ Jul 24, 05:45 UTCJul 24, 06:25 UTC40m
2026-07-24 QLK23D - Jul 24, 03:40 UTCJul 24, 04:20 UTC40m
2026-07-24 QLK22D - Jul 24, 02:20 UTCJul 24, 02:55 UTC35m
2026-07-24 QLK39D - Jul 24, 00:40 UTCJul 24, 01:20 UTC40m
2026-07-23 QLK28D - Jul 23, 23:10 UTCJul 23, 23:40 UTC30m
2026-07-23 QLK27D - Jul 23, 20:55 UTCJul 23, 21:40 UTC45m
2026-07-23 QLK44D - Jul 23, 09:45 UTCJul 23, 10:15 UTC30m
2026-07-23 QLK444D - Jul 23, 05:30 UTCJul 23, 06:10 UTC40m
2026-07-23 QLK439D - Jul 23, 04:10 UTCJul 23, 04:45 UTC35m
2026-07-23 QLK38D - Jul 23, 01:35 UTCJul 23, 02:50 UTC1h 15m
2026-07-22 QLK35D SYD → BNK Jul 22, 23:40 UTCJul 23, 00:55 UTC1h 15m
2026-07-22 QLK402D NGA → SYD Jul 22, 21:25 UTCJul 22, 22:05 UTC40m
2026-07-22 QLK473D - Jul 22, 04:20 UTCJul 22, 05:20 UTC1h 0m
2026-07-22 QLK437D - Jul 22, 02:50 UTCJul 22, 03:20 UTC30m
2026-07-22 QLK39D - Jul 22, 00:40 UTCJul 22, 01:25 UTC45m
2026-07-21 QLK28D - Jul 21, 23:10 UTCJul 21, 23:40 UTC30m
2026-07-21 QLK220D - Jul 21, 20:50 UTCJul 21, 21:35 UTC45m
2026-07-21 QLK227D - Jul 21, 09:10 UTCJul 21, 09:45 UTC35m
2026-07-21 QLK169D - Jul 21, 06:50 UTCJul 21, 07:40 UTC50m
2026-07-21 QLK164D - Jul 21, 05:35 UTCJul 21, 06:15 UTC40m
2026-07-21 QLK204D - Jul 21, 01:45 UTCJul 21, 02:30 UTC45m
2026-07-20 QLK203D - Jul 20, 22:50 UTCJul 20, 23:40 UTC50m
2026-07-20 QLK101D - Jul 20, 20:50 UTCJul 20, 21:50 UTC1h 0m
2026-07-20 QLK108D - Jul 20, 09:20 UTCJul 20, 10:10 UTC50m
2026-07-20 QLK25D - Jul 20, 07:25 UTCJul 20, 08:10 UTC45m
2026-07-20 QLK24D - Jul 20, 05:55 UTCJul 20, 06:35 UTC40m
2026-07-20 QLK110D - Jul 20, 03:50 UTCJul 20, 04:40 UTC50m
2026-07-20 QLK109D - Jul 20, 02:20 UTCJul 20, 02:55 UTC35m
2026-07-20 QLK39D - Jul 20, 00:45 UTCJul 20, 01:25 UTC40m
2026-07-19 QLK28D - Jul 19, 23:15 UTCJul 19, 23:40 UTC25m
2026-07-19 QLK422D - Jul 19, 21:20 UTCJul 19, 21:55 UTC35m
2026-07-19 QLK550D - Jul 19, 09:30 UTCJul 19, 11:00 UTC1h 30m
2026-07-19 QLK576D - Jul 19, 07:50 UTCJul 19, 08:25 UTC35m
2026-07-19 QLK575D - Jul 19, 06:40 UTCJul 19, 07:10 UTC30m
2026-07-19 QLK574D - Jul 19, 04:00 UTCJul 19, 04:25 UTC25m
2026-07-19 QLK573D - Jul 19, 02:45 UTCJul 19, 03:15 UTC30m
2026-07-17 QLK582D - Jul 17, 23:45 UTCJul 18, 00:15 UTC30m
2026-07-17 QLK581D - Jul 17, 22:29 UTCJul 17, 23:05 UTC35m
2026-07-17 QLK580D PLO → ADL Jul 17, 21:10 UTCJul 17, 21:44 UTC35m
2026-07-17 QLK589D ADL → PLO Jul 17, 09:50 UTCJul 17, 10:25 UTC35m

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

Mode-S 7C530E frequently asked

What is Mode-S code 7C530E?
7C530E is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-QOW.
Where is Mode-S 7C530E registered?
Mode-S code 7C530E is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C530E broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C530E, octal 37051416, decimal 8,147,726.
What flights does 7C530E operate?
Mode-S 7C530E has broadcast 20 distinct callsigns, including QLK41D, QLK40D, QLK35D, QLK208D, QLK444D.