Apparatus

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sensors Mode-S transponder

7C6D9F

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6D9F
Octal
37066637
Decimal
8,154,527
Country
AU
Tail
VH-VXT
Type
B738
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
346
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S 7C6D9F.

Country allocation

The ICAO 24-bit address 7C6D9F 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
QFA775 - 5 2026-07-02
QFA773 - 5 2026-07-06
QFA766 - 5 2026-07-06
QFA653 - 5 2026-06-21
QFA946 Qantas 4 2026-04-23
QFA932 Qantas 4 2026-05-26
QFA777 - 4 2026-07-05
QFA768 - 4 2026-07-05
QFA760 - 4 2026-06-21
QFA690 - 4 2026-06-15
QFA687 - 4 2026-06-15
QFA637 - 4 2026-07-17
QFA627 - 4 2026-06-26
QFA625 Qantas 4 2026-05-28
QFA608 - 4 2026-07-10
QFA468 Qantas 4 2026-05-28
QFA445 - 4 2026-07-17
QFA425 - 4 2026-06-20
QFA945 Qantas 3 2026-04-23
QFA937 - 3 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA731 SYD → ADL Jul 26, 20:55 UTCJul 26, 21:25 UTC30m
2026-07-26 QFA490 MEL → SYD Jul 26, 10:40 UTCJul 26, 11:50 UTC1h 10m
2026-07-26 QFA631 BNE → MEL Jul 26, 06:40 UTCJul 26, 09:10 UTC2h 30m
2026-07-26 QFA618 MEL → BNE Jul 26, 03:25 UTCJul 26, 05:10 UTC1h 45m
2026-07-26 QFA619 BNE → MEL Jul 26, 00:10 UTCJul 26, 02:15 UTC2h 5m
2026-07-25 QFA622 MEL → BNE Jul 25, 06:00 UTCJul 25, 07:45 UTC1h 45m
2026-07-25 QFA919 KTA → PER Jul 25, 02:25 UTCJul 25, 04:45 UTC2h 20m
2026-07-24 QFA918 PER → KTA Jul 24, 23:05 UTCJul 25, 01:00 UTC1h 55m
2026-07-24 QFA670 ADL → MEL Jul 24, 20:40 UTCJul 24, 21:40 UTC1h 0m
2026-07-24 QFA745 SYD → ADL Jul 24, 10:20 UTCJul 24, 10:45 UTC25m
2026-07-24 QFA745 SYD → ADL Jul 24, 09:00 UTCJul 24, 09:35 UTC35m
2026-07-24 QFA462 MEL → SYD Jul 24, 06:25 UTCJul 24, 07:35 UTC1h 10m
2026-07-24 QFA447 SYD → MEL Jul 24, 03:40 UTCJul 24, 04:50 UTC1h 10m
2026-07-24 QFA438 MEL → SYD Jul 24, 01:20 UTCJul 24, 02:20 UTC1h 0m
2026-07-23 QFA421 SYD → MEL Jul 23, 22:40 UTCJul 23, 23:50 UTC1h 10m
2026-07-23 QFA476 PER → MEL Jul 23, 08:05 UTCJul 23, 09:10 UTC1h 5m
2026-07-23 QFA455 SYD → MEL Jul 23, 05:30 UTCJul 23, 06:40 UTC1h 10m
2026-07-23 QFA529 BNE → SYD Jul 23, 03:05 UTCJul 23, 04:20 UTC1h 15m
2026-07-23 QFA518 SYD → BNE Jul 23, 00:40 UTCJul 23, 01:55 UTC1h 15m
2026-07-22 QFA418 MEL → SYD Jul 22, 22:05 UTCJul 22, 23:05 UTC1h 0m
2026-07-17 QFA637 BNE → MEL Jul 17, 09:20 UTCJul 17, 11:25 UTC2h 5m
2026-07-17 QFA622 MEL → BNE Jul 17, 05:55 UTCJul 17, 08:00 UTC2h 5m
2026-07-17 QFA445 SYD → MEL Jul 17, 03:25 UTCJul 17, 04:29 UTC1h 5m
2026-07-17 QFA436 MEL → SYD Jul 17, 01:05 UTCJul 17, 02:10 UTC1h 5m
2026-07-16 QFA475 SYD → MEL Jul 16, 08:15 UTCJul 16, 09:20 UTC1h 5m
2026-07-16 QFA458 MEL → SYD Jul 16, 05:55 UTCJul 16, 07:10 UTC1h 15m
2026-07-16 QFA443 SYD → MEL Jul 16, 02:55 UTCJul 16, 04:10 UTC1h 15m
2026-07-16 QFA519 BNE → SYD Jul 16, 00:30 UTCJul 16, 01:45 UTC1h 15m
2026-07-15 QFA544 SYD → BNE Jul 15, 07:25 UTCJul 15, 08:35 UTC1h 10m
2026-07-15 QFA533 BNE → SYD Jul 15, 04:15 UTCJul 15, 05:20 UTC1h 5m
2026-07-15 QFA612 MEL → BNE Jul 15, 00:35 UTCJul 15, 02:20 UTC1h 45m
2026-07-12 QFA764 PER → MEL Jul 12, 02:50 UTCJul 12, 05:55 UTC3h 5m
2026-07-11 QFA937 BNE → PER Jul 11, 03:35 UTCJul 11, 08:50 UTC5h 15m
2026-07-10 QFA608 MEL → BNE Jul 10, 22:30 UTCJul 11, 00:15 UTC1h 45m
2026-07-10 QFA637 BNE → MEL Jul 10, 09:30 UTCJul 10, 11:30 UTC2h 0m
2026-07-10 QFA624 MEL → BNE Jul 10, 06:10 UTCJul 10, 08:10 UTC2h 0m
2026-07-10 QFA919 MCY → MEL Jul 10, 03:05 UTCJul 10, 05:10 UTC2h 5m
2026-07-09 QFA918 MEL → MCY Jul 9, 23:45 UTCJul 10, 01:50 UTC2h 5m
2026-07-07 QFA762 PER → MEL Jul 7, 02:05 UTCJul 7, 05:25 UTC3h 20m
2026-07-06 QFA773 MEL → PER Jul 6, 09:10 UTCJul 6, 12:35 UTC3h 25m
2026-07-06 QFA766 PER → MEL Jul 6, 04:35 UTCJul 6, 07:55 UTC3h 20m
2026-07-05 QFA763 MEL → PER Jul 5, 23:20 UTCJul 6, 03:10 UTC3h 50m
2026-07-05 QFA768 PER → MEL Jul 5, 07:10 UTCJul 5, 10:30 UTC3h 20m
2026-07-05 QFA777 MEL → PER Jul 5, 02:00 UTCJul 5, 05:40 UTC3h 40m
2026-07-03 QFA479 SYD → MEL Jul 3, 08:40 UTCJul 3, 10:05 UTC1h 25m
2026-07-03 QFA595 - Jul 3, 06:00 UTCJul 3, 07:15 UTC1h 15m
2026-07-03 QFA594 - Jul 3, 03:55 UTCJul 3, 04:55 UTC1h 0m
2026-07-02 QFA642 PER → SYD Jul 2, 22:25 UTCJul 3, 02:15 UTC3h 50m
2026-07-02 QFA775 MEL → PER Jul 2, 10:30 UTCJul 2, 14:15 UTC3h 45m
2026-07-02 QFA473 SYD → MEL Jul 2, 08:05 UTCJul 2, 09:25 UTC1h 20m

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

Mode-S 7C6D9F frequently asked

What is Mode-S code 7C6D9F?
7C6D9F is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VXT.
Where is Mode-S 7C6D9F registered?
Mode-S code 7C6D9F is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6D9F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6D9F, octal 37066637, decimal 8,154,527.
What flights does 7C6D9F operate?
Mode-S 7C6D9F has broadcast 20 distinct callsigns, including QFA775, QFA773, QFA766, QFA653, QFA946.