Apparatus

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sensors Mode-S transponder

7C6D9C

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-VXQ · BOEING 737-800 · operated by QANTAS AIRWAYS LIMITED

Hex
7C6D9C
Octal
37066634
Decimal
8,154,524
Country
AU
Tail
VH-VXQ
Type
B738
No current signal · last broadcast Jul 26, 21:50 UTC
Flights observed
377
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 21:50 UTC

Last known position

Most recent position reported by Mode-S 7C6D9C.

Country allocation

The ICAO 24-bit address 7C6D9C 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
QFA937 - 6 2026-06-29
QFA773 - 6 2026-06-28
QFA891 - 5 2026-06-30
QFA886 - 5 2026-06-30
QFA841 - 5 2026-07-04
QFA764 Qantas 5 2026-04-17
QFA749 Qantas 5 2026-07-26
QFA670 Qantas 5 2026-07-26
QFA443 - 5 2026-07-14
QFA934 - 4 2026-07-12
QFA824 Qantas 4 2026-07-25
QFA765 - 4 2026-07-17
QFA693 Qantas 4 2026-07-21
QFA644 - 4 2026-06-15
QFA642 - 4 2026-07-17
QFA519 - 4 2026-07-14
QFA461 Qantas 4 2026-07-19
QFA459 - 4 2026-07-10
QFA454 - 4 2026-07-11
QFA945 Qantas 3 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA670 ADL → MEL Jul 26, 20:35 UTCJul 26, 21:45 UTC1h 10m
2026-07-26 QFA749 SYD → ADL Jul 26, 11:15 UTCJul 26, 12:50 UTC1h 35m
2026-07-26 QFA545 BNE → SYD Jul 26, 07:55 UTCJul 26, 09:05 UTC1h 10m
2026-07-26 QFA620 MEL → BNE Jul 26, 04:25 UTCJul 26, 06:15 UTC1h 50m
2026-07-26 QFA621 BNE → MEL Jul 26, 01:20 UTCJul 26, 03:25 UTC2h 5m
2026-07-25 QFA825 DRW → BNE Jul 25, 06:15 UTCJul 25, 06:50 UTC35m
2026-07-25 QFA824 BNE → DRW Jul 25, 02:10 UTCJul 25, 02:20 UTC10m
2026-07-24 QFA824 BNE → DRW Jul 24, 22:25 UTCJul 24, 22:55 UTC30m
2026-07-22 QFA790 SYD → ASP Jul 22, 00:20 UTCJul 22, 00:55 UTC35m
2026-07-21 QFA414 MEL → SYD Jul 21, 21:35 UTCJul 21, 22:35 UTC1h 0m
2026-07-21 QFA696 ADL → MEL Jul 21, 10:15 UTCJul 21, 11:10 UTC55m
2026-07-21 QFA693 MEL → ADL Jul 21, 08:15 UTCJul 21, 09:20 UTC1h 5m
2026-07-21 QFA627 BNE → MEL Jul 21, 04:30 UTCJul 21, 06:25 UTC1h 55m
2026-07-21 QFA614 MEL → BNE Jul 21, 01:35 UTCJul 21, 03:25 UTC1h 50m
2026-07-20 QFA421 SYD → MEL Jul 20, 22:40 UTCJul 20, 23:50 UTC1h 10m
2026-07-20 QFA545 - Jul 20, 08:00 UTCJul 20, 09:10 UTC1h 10m
2026-07-20 QFA536 SYD → BNE Jul 20, 05:55 UTCJul 20, 07:05 UTC1h 10m
2026-07-20 QFA529 BNE → SYD Jul 20, 02:55 UTCJul 20, 04:05 UTC1h 10m
2026-07-19 QFA632 MEL → BNE Jul 19, 08:55 UTCJul 19, 10:40 UTC1h 45m
2026-07-19 QFA461 SYD → MEL Jul 19, 06:15 UTCJul 19, 07:20 UTC1h 5m
2026-07-19 QFA740 ADL → SYD Jul 19, 03:15 UTCJul 19, 04:50 UTC1h 35m
2026-07-19 QFA735 SYD → ADL Jul 19, 00:25 UTCJul 19, 02:05 UTC1h 40m
2026-07-18 QFA843 DRW → SYD Jul 18, 19:20 UTCJul 18, 20:10 UTC50m
2026-07-18 QFA842 - Jul 18, 10:30 UTCJul 18, 11:20 UTC50m
2026-07-18 QFA545 BNE → SYD Jul 18, 07:45 UTCJul 18, 08:55 UTC1h 10m
2026-07-18 QFA536 SYD → BNE Jul 18, 05:25 UTCJul 18, 06:30 UTC1h 5m
2026-07-17 QFA642 PER → SYD Jul 17, 22:15 UTCJul 18, 01:50 UTC3h 35m
2026-07-17 QFA857 - Jul 17, 10:20 UTCJul 17, 14:24 UTC4h 5m
2026-07-17 QFA856 - Jul 17, 05:39 UTCJul 17, 08:49 UTC3h 10m
2026-07-17 QFA765 MEL → PER Jul 17, 00:40 UTCJul 17, 04:20 UTC3h 40m
2026-07-16 QFA674 ADL → MEL Jul 16, 22:35 UTCJul 16, 23:29 UTC55m
2026-07-16 QFA671 MEL → ADL Jul 16, 20:29 UTCJul 16, 21:25 UTC55m
2026-07-16 QFA499 SYD → MEL Jul 16, 12:14 UTCJul 16, 13:20 UTC1h 5m
2026-07-16 QFA557 BNE → SYD Jul 16, 09:45 UTCJul 16, 10:50 UTC1h 5m
2026-07-16 QFA622 MEL → BNE Jul 16, 05:50 UTCJul 16, 07:50 UTC2h 0m
2026-07-16 QFA623 BNE → MEL Jul 16, 02:25 UTCJul 16, 04:25 UTC2h 0m
2026-07-15 QFA610 MEL → BNE Jul 15, 23:25 UTCJul 16, 01:20 UTC1h 55m
2026-07-15 QFA670 ADL → MEL Jul 15, 20:50 UTCJul 15, 21:50 UTC1h 0m
2026-07-15 QFA749 SYD → ADL Jul 15, 11:00 UTCJul 15, 12:45 UTC1h 45m
2026-07-15 QFA597 - Jul 15, 08:10 UTCJul 15, 09:15 UTC1h 5m
2026-07-15 QFA596 - Jul 15, 06:05 UTCJul 15, 07:10 UTC1h 5m
2026-07-15 QFA740 ADL → SYD Jul 15, 03:20 UTCJul 15, 05:00 UTC1h 40m
2026-07-15 QFA735 SYD → ADL Jul 15, 00:30 UTCJul 15, 02:10 UTC1h 40m
2026-07-14 QFA416 MEL → SYD Jul 14, 21:55 UTCJul 14, 23:00 UTC1h 4m
2026-07-14 QFA475 SYD → MEL Jul 14, 08:10 UTCJul 14, 09:20 UTC1h 10m
2026-07-14 QFA458 MEL → SYD Jul 14, 05:30 UTCJul 14, 06:35 UTC1h 5m
2026-07-14 QFA443 SYD → MEL Jul 14, 02:55 UTCJul 14, 04:05 UTC1h 10m
2026-07-14 QFA519 BNE → SYD Jul 14, 00:35 UTCJul 14, 01:45 UTC1h 10m
2026-07-13 QFA604 MEL → BNE Jul 13, 21:25 UTCJul 13, 23:15 UTC1h 50m
2026-07-13 QFA629 BNE → MEL Jul 13, 05:40 UTCJul 13, 07:40 UTC2h 0m

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

Mode-S 7C6D9C frequently asked

What is Mode-S code 7C6D9C?
7C6D9C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VXQ.
Where is Mode-S 7C6D9C registered?
Mode-S code 7C6D9C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6D9C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6D9C, octal 37066634, decimal 8,154,524.
What flights does 7C6D9C operate?
Mode-S 7C6D9C has broadcast 20 distinct callsigns, including QFA937, QFA773, QFA891, QFA886, QFA841.