Apparatus

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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
Transponder active on ground
Flights observed
181
Distinct callsigns
20
Country
AU
Last broadcast
3h ago

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 6 2026-05-23
QFA843 Qantas 4 2026-05-13
QFA842 Qantas 4 2026-05-13
QFA773 Qantas 4 2026-05-22
QFA764 Qantas 4 2026-05-22
QFA941 Qantas 3 2026-05-23
QFA933 Qantas 3 2026-05-05
QFA922 Qantas 3 2026-05-21
QFA777 Qantas 3 2026-05-27
QFA671 Qantas 3 2026-05-29
QFA510 Qantas 3 2026-05-19
QFA433 Qantas 3 2026-04-19
QFA425 Qantas 3 2026-04-27
QFA946 Qantas 2 2026-05-11
QFA945 Qantas 2 2026-05-11
QFA923 Qantas 2 2026-04-17
QFA768 Qantas 2 2026-05-27
QFA748 Qantas 2 2026-04-17
QFA743 Qantas 2 2026-04-17
QFA738 Qantas 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 QFA736 ADL → SYD May 29, 23:25 UTCMay 30, 00:50 UTC1h 25m
2026-05-29 QFA671 MEL → ADL May 29, 20:15 UTCMay 29, 21:20 UTC1h 5m
2026-05-29 QFA499 SYD → MEL May 29, 12:15 UTCMay 29, 13:15 UTC1h 0m
2026-05-29 QFA650 PER → BNE May 29, 07:15 UTCMay 29, 10:45 UTC3h 30m
2026-05-29 QFA645 SYD → PER May 29, 01:10 UTCMay 29, 06:05 UTC4h 55m
2026-05-28 QFA410 MEL → SYD May 28, 21:10 UTCMay 28, 22:35 UTC1h 25m
2026-05-28 QFA776 PER → MEL May 28, 15:50 UTCMay 28, 18:50 UTC3h 0m
2026-05-28 QFA775 MEL → PER May 28, 10:10 UTCMay 28, 14:05 UTC3h 55m
2026-05-27 QFA768 PER → MEL May 27, 07:00 UTCMay 27, 10:25 UTC3h 25m
2026-05-27 QFA777 MEL → PER May 27, 04:49 UTCMay 27, 05:35 UTC45m
2026-05-27 QFA777 MEL → PER May 27, 01:44 UTCMay 27, 02:49 UTC1h 5m
2026-05-26 QFA674 ADL → MEL May 26, 22:44 UTCMay 26, 23:54 UTC1h 10m
2026-05-26 QFA671 MEL → ADL May 26, 20:34 UTCMay 26, 21:29 UTC55m
2026-05-26 QFA690 ADL → MEL May 26, 07:10 UTCMay 26, 08:15 UTC1h 5m
2026-05-26 QFA687 MEL → ADL May 26, 05:05 UTCMay 26, 06:10 UTC1h 5m
2026-05-26 QFA762 PER → MEL May 26, 00:24 UTCMay 26, 03:55 UTC3h 30m
2026-05-24 QFA883 SYD → CBR May 24, 20:45 UTCMay 24, 23:40 UTC2h 55m
2026-05-24 QFA888 PER → ADL May 24, 09:10 UTCMay 24, 11:45 UTC2h 35m
2026-05-24 QFA889 ADL → PER May 24, 04:55 UTCMay 24, 07:50 UTC2h 55m
2026-05-24 QFA884 PER → ADL May 24, 01:15 UTCMay 24, 03:55 UTC2h 40m
2026-05-23 QFA941 BNE → PER May 23, 08:30 UTCMay 23, 13:25 UTC4h 55m
2026-05-23 QFA936 PER → BNE May 23, 02:50 UTCMay 23, 06:55 UTC4h 5m
2026-05-22 QFA773 PER → SIN May 22, 09:20 UTCMay 22, 12:55 UTC3h 35m
2026-05-22 QFA764 ADL → SYD May 22, 03:00 UTCMay 22, 06:05 UTC3h 5m
2026-05-22 QFA1201 KGI → PER May 22, 00:25 UTCMay 22, 01:15 UTC50m
2026-05-21 QFA1200 PER → KGI May 21, 22:40 UTCMay 21, 23:25 UTC45m
2026-05-21 QFA943 BNE → PER May 21, 10:30 UTCMay 21, 15:35 UTC5h 5m
2026-05-21 QFA546 SYD → BNE May 21, 07:45 UTCMay 21, 08:55 UTC1h 10m
2026-05-21 QFA922 SYD → CNS May 21, 00:00 UTCMay 21, 06:15 UTC6h 15m
2026-05-20 QFA470 MEL → SYD May 20, 07:15 UTCMay 20, 08:20 UTC1h 5m
2026-05-20 QFA451 SYD → MEL May 20, 05:00 UTCMay 20, 06:10 UTC1h 10m
2026-05-20 QFA527 BNE → SYD May 20, 02:30 UTCMay 20, 03:35 UTC1h 5m
2026-05-19 QFA510 SYD → BNE May 19, 23:05 UTCMay 20, 00:15 UTC1h 10m
2026-05-19 QFA650 PER → BNE May 19, 07:00 UTCMay 19, 10:50 UTC3h 50m
2026-05-18 QFA1087 ZNE → PER May 18, 21:30 UTCMay 19, 01:35 UTC4h 5m
2026-05-18 QFA941 BNE → PER May 18, 08:35 UTCMay 18, 13:35 UTC5h 0m
2026-05-18 QFA618 MEL → BNE May 18, 03:50 UTCMay 18, 05:45 UTC1h 55m
2026-05-18 QFA619 BNE → MEL May 18, 00:20 UTCMay 18, 02:25 UTC2h 5m
2026-05-17 QFA600 MEL → BNE May 17, 20:20 UTCMay 17, 22:15 UTC1h 55m
2026-05-17 QFA483 SYD → MEL May 17, 09:05 UTCMay 17, 10:30 UTC1h 25m
2026-05-17 QFA541 BNE → SYD May 17, 06:15 UTCMay 17, 07:25 UTC1h 10m
2026-05-17 QFA532 SYD → BNE May 17, 04:00 UTCMay 17, 05:10 UTC1h 10m
2026-05-17 QFA593 ADL → PER May 17, 01:35 UTCMay 17, 02:45 UTC1h 10m
2026-05-16 QFA592 PER → ADL May 16, 23:35 UTCMay 17, 00:35 UTC1h 0m
2026-05-16 QFA470 MEL → SYD May 16, 07:16 UTCMay 16, 08:16 UTC1h 0m
2026-05-16 QFA447 SYD → MEL May 16, 03:40 UTCMay 16, 04:50 UTC1h 10m
2026-05-16 QFA438 MEL → SYD May 16, 01:20 UTCMay 16, 02:25 UTC1h 5m
2026-05-15 QFA421 SYD → MEL May 15, 22:50 UTCMay 15, 23:55 UTC1h 5m
2026-05-15 QFA557 BNE → SYD May 15, 10:00 UTCMay 15, 11:05 UTC1h 5m
2026-05-15 QFA936 PER → BNE May 15, 07:10 UTCMay 15, 07:40 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-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?
Mode-S 7C6D9B is currently broadcasting from the ground.
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, QFA843, QFA842, QFA773, QFA764.