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sensors Mode-S transponder

7C6D9B

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6D9B
Octal
37066633
Decimal
8,154,523
Country
AU
Tail
VH-VXP
Type
B738
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
388
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S 7C6D9B.

Country allocation

The ICAO 24-bit address 7C6D9B 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
QFA936 Qantas 7 2026-06-05
QFA773 Qantas 6 2026-07-20
QFA735 Qantas 6 2026-07-26
QFA671 Qantas 6 2026-07-26
QFA941 - 5 2026-07-10
QFA777 - 5 2026-06-28
QFA764 Qantas 5 2026-07-18
QFA740 Qantas 5 2026-07-26
QFA733 - 5 2026-06-21
QFA674 Qantas 5 2026-07-26
QFA937 - 4 2026-07-17
QFA933 Qantas 4 2026-06-04
QFA922 Qantas 4 2026-07-24
QFA843 Qantas 4 2026-05-13
QFA842 Qantas 4 2026-05-13
QFA768 - 4 2026-06-28
QFA743 Qantas 4 2026-07-24
QFA738 - 4 2026-06-22
QFA690 - 4 2026-07-12
QFA687 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA674 ADL → MEL Jul 26, 22:25 UTCJul 26, 22:45 UTC20m
2026-07-26 QFA671 MEL → ADL Jul 26, 20:35 UTCJul 26, 21:30 UTC55m
2026-07-26 QFA493 SYD → MEL Jul 26, 11:20 UTCJul 26, 12:20 UTC1h 0m
2026-07-26 QFA597 BNE → PER Jul 26, 08:25 UTCJul 26, 09:25 UTC1h 0m
2026-07-26 QFA596 SYD → OOL Jul 26, 06:15 UTCJul 26, 07:20 UTC1h 6m
2026-07-26 QFA740 ADL → SYD Jul 26, 03:25 UTCJul 26, 05:10 UTC1h 45m
2026-07-26 QFA735 SYD → ADL Jul 26, 00:25 UTCJul 26, 02:05 UTC1h 40m
2026-07-25 QFA589 BNE → PER Jul 25, 21:15 UTCJul 25, 22:30 UTC1h 15m
2026-07-25 QFA596 SYD → OOL Jul 25, 06:00 UTCJul 25, 06:55 UTC55m
2026-07-25 QFA740 ADL → SYD Jul 25, 03:20 UTCJul 25, 05:00 UTC1h 40m
2026-07-25 QFA735 SYD → ADL Jul 25, 02:05 UTCJul 25, 02:30 UTC25m
2026-07-25 QFA735 SYD → ADL Jul 25, 00:55 UTCJul 25, 01:25 UTC30m
2026-07-24 QFA748 ADL → SYD Jul 24, 10:35 UTCJul 24, 12:05 UTC1h 30m
2026-07-24 QFA743 SYD → ADL Jul 24, 08:55 UTCJul 24, 09:20 UTC25m
2026-07-24 QFA743 SYD → ADL Jul 24, 07:35 UTCJul 24, 08:10 UTC35m
2026-07-24 QFA922 SYD → CNS Jul 24, 00:00 UTCJul 24, 06:15 UTC6h 15m
2026-07-23 QFA730 ADL → SYD Jul 23, 20:45 UTCJul 23, 22:15 UTC1h 30m
2026-07-23 QFA888 PER → ADL Jul 23, 09:45 UTCJul 23, 12:15 UTC2h 30m
2026-07-23 QFA889 ADL → PER Jul 23, 04:50 UTCJul 23, 07:40 UTC2h 50m
2026-07-23 QFA884 PER → ADL Jul 23, 01:20 UTCJul 23, 03:50 UTC2h 30m
2026-07-22 QFA883 SYD → CBR Jul 22, 20:50 UTCJul 22, 23:45 UTC2h 55m
2026-07-22 QFA888 PER → ADL Jul 22, 05:10 UTCJul 22, 11:50 UTC6h 40m
2026-07-22 QFA884 PER → ADL Jul 22, 01:20 UTCJul 22, 03:50 UTC2h 30m
2026-07-21 QFA761 TSV → BNE Jul 21, 20:15 UTCJul 22, 00:00 UTC3h 45m
2026-07-21 QFA631 BNE → MEL Jul 21, 06:35 UTCJul 21, 08:40 UTC2h 5m
2026-07-21 QFA532 SYD → BNE Jul 21, 03:55 UTCJul 21, 05:05 UTC1h 10m
2026-07-20 QFA642 PER → SYD Jul 20, 22:35 UTCJul 21, 02:00 UTC3h 24m
2026-07-20 QFA773 PER → SIN Jul 20, 09:20 UTCJul 20, 13:15 UTC3h 55m
2026-07-20 QFA629 BNE → MEL Jul 20, 05:50 UTCJul 20, 08:00 UTC2h 10m
2026-07-20 QFA616 MEL → BNE Jul 20, 02:50 UTCJul 20, 04:40 UTC1h 50m
2026-07-19 QFA493 SYD → MEL Jul 19, 10:50 UTCJul 19, 12:00 UTC1h 10m
2026-07-19 QFA476 MEL → SYD Jul 19, 08:00 UTCJul 19, 09:05 UTC1h 5m
2026-07-19 QFA453 SYD → MEL Jul 19, 05:15 UTCJul 19, 06:25 UTC1h 10m
2026-07-19 QFA442 MEL → SYD Jul 19, 02:05 UTCJul 19, 03:10 UTC1h 5m
2026-07-18 QFA764 ADL → SYD Jul 18, 02:55 UTCJul 18, 05:50 UTC2h 55m
2026-07-17 QFA937 BNE → PER Jul 17, 03:39 UTCJul 17, 08:54 UTC5h 15m
2026-07-16 QFA932 SYD → CNS Jul 16, 22:25 UTCJul 17, 02:20 UTC3h 55m
2026-07-16 QFA939 - Jul 16, 09:45 UTCJul 16, 10:25 UTC40m
2026-07-16 QFA939 - Jul 16, 05:35 UTCJul 16, 07:35 UTC2h 0m
2026-07-16 QFA934 PER → BNE Jul 16, 00:10 UTCJul 16, 04:10 UTC4h 0m
2026-07-15 QFA775 MEL → PER Jul 15, 10:10 UTCJul 15, 13:45 UTC3h 35m
2026-07-15 QFA674 - Jul 15, 01:10 UTCJul 15, 02:20 UTC1h 10m
2026-07-14 QFA671 MEL → ADL Jul 14, 22:00 UTCJul 15, 00:20 UTC2h 19m
2026-07-14 QFA499 SYD → MEL Jul 14, 12:20 UTCJul 14, 13:35 UTC1h 15m
2026-07-14 QFA650 PER → SYD Jul 14, 07:15 UTCJul 14, 11:05 UTC3h 50m
2026-07-14 QFA645 SYD → PER Jul 14, 01:15 UTCJul 14, 06:00 UTC4h 45m
2026-07-13 QFA507 BNE → SYD Jul 13, 21:45 UTCJul 13, 23:00 UTC1h 15m
2026-07-13 QFA546 - Jul 13, 07:50 UTCJul 13, 09:00 UTC1h 10m
2026-07-13 QFA790 SYD → SYD Jul 13, 00:20 UTCJul 13, 06:40 UTC6h 20m
2026-07-12 QFA732 ADL → SYD Jul 12, 21:10 UTCJul 12, 22:45 UTC1h 35m

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

Mode-S 7C6D9B frequently asked

What is Mode-S code 7C6D9B?
7C6D9B is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VXP.
Where is Mode-S 7C6D9B registered?
Mode-S code 7C6D9B is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6D9B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6D9B, octal 37066633, decimal 8,154,523.
What flights does 7C6D9B operate?
Mode-S 7C6D9B has broadcast 20 distinct callsigns, including QFA936, QFA773, QFA735, QFA671, QFA941.