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 58m ago
Flights observed
180
Distinct callsigns
20
Country
AU
Last broadcast
58m ago

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
QFA946 Qantas 4 2026-04-23
QFA932 Qantas 4 2026-05-26
QFA625 Qantas 4 2026-05-28
QFA468 Qantas 4 2026-05-28
QFA945 Qantas 3 2026-04-23
QFA777 Qantas 3 2026-05-21
QFA773 Qantas 3 2026-05-09
QFA768 Qantas 3 2026-05-21
QFA690 Qantas 3 2026-05-06
QFA687 Qantas 3 2026-05-06
QFA674 Qantas 3 2026-05-24
QFA671 Qantas 3 2026-05-24
QFA627 Qantas 3 2026-05-25
QFA614 Qantas 3 2026-05-25
QFA425 Qantas 3 2026-05-16
QFA937 Qantas 2 2026-05-27
QFA857 Qantas 2 2026-05-02
QFA856 Qantas 2 2026-05-02
QFA840 Qantas 2 2026-05-29
QFA775 Qantas 2 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 QFA738 ADL → SYD May 30, 02:25 UTCMay 30, 03:45 UTC1h 20m
2026-05-29 QFA675 MEL → ADL May 29, 22:50 UTCMay 29, 23:50 UTC1h 0m
2026-05-29 QFA776 PER → MEL May 29, 16:05 UTCMay 29, 18:55 UTC2h 50m
2026-05-29 QFA653 MEL → PER May 29, 13:20 UTCMay 29, 13:45 UTC25m
2026-05-29 QFA653 MEL → PER May 29, 09:10 UTCMay 29, 11:15 UTC2h 5m
2026-05-29 QFA841 DRW → SYD May 29, 06:45 UTCMay 29, 07:35 UTC50m
2026-05-29 QFA840 SYD → DRW May 29, 02:20 UTCMay 29, 02:30 UTC10m
2026-05-28 QFA840 SYD → DRW May 28, 22:10 UTCMay 28, 23:00 UTC50m
2026-05-28 QFA468 MEL → SYD May 28, 07:35 UTCMay 28, 08:45 UTC1h 10m
2026-05-28 QFA625 BNE → MEL May 28, 04:30 UTCMay 28, 06:25 UTC1h 55m
2026-05-28 QFA518 SYD → BNE May 28, 02:00 UTCMay 28, 03:20 UTC1h 20m
2026-05-27 QFA509 BNE → SYD May 27, 22:05 UTCMay 27, 23:15 UTC1h 10m
2026-05-27 QFA940 PER → BNE May 27, 10:15 UTCMay 27, 14:10 UTC3h 55m
2026-05-27 QFA937 BNE → PER May 27, 03:50 UTCMay 27, 09:00 UTC5h 10m
2026-05-26 QFA932 SYD → CNS May 26, 22:05 UTCMay 27, 02:09 UTC4h 5m
2026-05-26 QFA937 BNE → PER May 26, 03:50 UTCMay 26, 08:59 UTC5h 10m
2026-05-26 QFA612 MEL → BNE May 26, 00:39 UTCMay 26, 02:39 UTC2h 0m
2026-05-25 QFA670 ADL → MEL May 25, 20:40 UTCMay 25, 21:35 UTC55m
2026-05-25 QFA693 MEL → ADL May 25, 08:20 UTCMay 25, 09:25 UTC1h 5m
2026-05-25 QFA627 BNE → MEL May 25, 04:35 UTCMay 25, 06:30 UTC1h 55m
2026-05-25 QFA614 MEL → BNE May 25, 01:55 UTCMay 25, 03:20 UTC1h 25m
2026-05-24 QFA674 ADL → MEL May 24, 23:00 UTCMay 24, 23:30 UTC30m
2026-05-24 QFA671 MEL → ADL May 24, 20:25 UTCMay 24, 21:30 UTC1h 5m
2026-05-24 QFA637 BNE → MEL May 24, 09:25 UTCMay 24, 11:15 UTC1h 50m
2026-05-24 QFA624 MEL → BNE May 24, 06:15 UTCMay 24, 08:15 UTC2h 0m
2026-05-24 QFA445 SYD → MEL May 24, 03:25 UTCMay 24, 04:35 UTC1h 10m
2026-05-22 QFA549 BNE → SYD May 22, 08:25 UTCMay 22, 09:50 UTC1h 25m
2026-05-22 QFA865 BNE → CBR May 22, 02:50 UTCMay 22, 07:15 UTC4h 25m
2026-05-21 QFA608 MEL → BNE May 21, 22:10 UTCMay 22, 00:00 UTC1h 50m
2026-05-21 QFA768 PER → MEL May 21, 07:40 UTCMay 21, 10:50 UTC3h 10m
2026-05-21 QFA777 MEL → PER May 21, 01:55 UTCMay 21, 05:40 UTC3h 45m
2026-05-20 QFA423 SYD → MEL May 20, 23:00 UTCMay 21, 00:05 UTC1h 5m
2026-05-20 QFA404 MEL → SYD May 20, 20:20 UTCMay 20, 21:35 UTC1h 15m
2026-05-20 QFA637 BNE → MEL May 20, 09:25 UTCMay 20, 11:35 UTC2h 10m
2026-05-20 QFA624 MEL → BNE May 20, 06:15 UTCMay 20, 08:00 UTC1h 45m
2026-05-20 QFA445 SYD → MEL May 20, 03:10 UTCMay 20, 04:15 UTC1h 5m
2026-05-20 QFA436 MEL → SYD May 20, 01:00 UTCMay 20, 02:00 UTC1h 0m
2026-05-19 QFA674 ADL → MEL May 19, 22:30 UTCMay 19, 23:30 UTC1h 0m
2026-05-19 QFA671 MEL → ADL May 19, 20:20 UTCMay 19, 21:15 UTC55m
2026-05-19 QFA6122 BNE → MEL May 19, 10:40 UTCMay 19, 11:45 UTC1h 5m
2026-05-19 QFA472 MEL → SYD May 19, 08:35 UTCMay 19, 09:45 UTC1h 10m
2026-05-19 QFA625 BNE → MEL May 19, 03:35 UTCMay 19, 05:35 UTC2h 0m
2026-05-19 QFA612 MEL → BNE May 19, 00:30 UTCMay 19, 02:25 UTC1h 55m
2026-05-18 QFA607 BNE → MEL May 18, 20:45 UTCMay 18, 22:50 UTC2h 5m
2026-05-18 QFA540 SYD → BNE May 18, 07:50 UTCMay 18, 07:55 UTC5m
2026-05-18 QFA540 SYD → BNE May 18, 06:35 UTCMay 18, 07:45 UTC1h 10m
2026-05-18 QFA450 MEL → SYD May 18, 04:20 UTCMay 18, 05:30 UTC1h 10m
2026-05-18 QFA439 SYD → MEL May 18, 02:05 UTCMay 18, 03:15 UTC1h 10m
2026-05-17 QFA591 OOL → SYD May 17, 23:35 UTCMay 18, 00:45 UTC1h 10m
2026-05-17 QFA590 PER → ADL May 17, 21:40 UTCMay 17, 22:40 UTC1h 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-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 58m ago.
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 QFA946, QFA932, QFA625, QFA468, QFA945.