Apparatus

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sensors Mode-S transponder

7C6D94

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6D94
Octal
37066624
Decimal
8,154,516
Country
AU
Tail
VH-VXI
Type
B738
Broadcasting now · callsign QFA632 · 28,625 ft
Flights observed
184
Distinct callsigns
20
Country
AU
Last broadcast
2h ago

Current position

7C6D94 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C6D94 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
QFA939 Qantas 5 2026-04-16
QFA934 Qantas 5 2026-04-16
QFA942 Qantas 4 2026-04-25
QFA937 Qantas 4 2026-05-17
QFA649 Qantas 4 2026-04-18
QFA642 Qantas 4 2026-05-18
QFA523 Qantas 4 2026-05-30
QFA943 Qantas 3 2026-05-18
QFA613 Qantas 3 2026-05-26
QFA598 Qantas 3 2026-05-05
QFA589 Qantas 3 2026-05-05
QFA449 Qantas 3 2026-05-24
QFA941 Qantas 2 2026-04-30
QFA884 Qantas 2 2026-05-08
QFA843 Qantas 2 2026-05-24
QFA840 Qantas 2 2026-05-05
QFA749 Qantas 2 2026-05-07
QFA744 Qantas 2 2026-04-17
QFA743 Qantas 2 2026-05-06
QFA739 Qantas 2 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 QFA453 SYD → MEL May 30, 05:20 UTCMay 30, 06:25 UTC1h 5m
2026-05-30 QFA523 BNE → SYD May 30, 01:50 UTCMay 30, 03:05 UTC1h 15m
2026-05-29 QFA510 SYD → BNE May 29, 23:00 UTCMay 30, 00:05 UTC1h 5m
2026-05-29 QFA458 MEL → SYD May 29, 05:35 UTCMay 29, 06:40 UTC1h 5m
2026-05-29 QFA445 SYD → MEL May 29, 03:10 UTCMay 29, 04:20 UTC1h 10m
2026-05-29 QFA436 MEL → SYD May 29, 00:55 UTCMay 29, 02:00 UTC1h 5m
2026-05-28 QFA609 BNE → MEL May 28, 21:40 UTCMay 28, 23:50 UTC2h 10m
2026-05-27 QFA628 MEL → BNE May 27, 07:45 UTCMay 27, 09:55 UTC2h 10m
2026-05-27 QFA451 SYD → MEL May 27, 05:04 UTCMay 27, 06:04 UTC1h 0m
2026-05-27 QFA442 MEL → SYD May 27, 02:19 UTCMay 27, 03:24 UTC1h 5m
2026-05-26 QFA613 BNE → MEL May 26, 22:09 UTCMay 26, 22:59 UTC50m
2026-05-26 QFA624 MEL → BNE May 26, 06:14 UTCMay 26, 08:19 UTC2h 5m
2026-05-26 QFA621 BNE → MEL May 26, 01:14 UTCMay 26, 03:05 UTC1h 50m
2026-05-25 QFA510 SYD → BNE May 25, 22:49 UTCMay 26, 00:09 UTC1h 20m
2026-05-25 QFA501 BNE → SYD May 25, 20:09 UTCMay 25, 21:19 UTC1h 10m
2026-05-25 QFA550 SYD → BNE May 25, 09:00 UTCMay 25, 10:10 UTC1h 10m
2026-05-25 QFA541 BNE → SYD May 25, 06:15 UTCMay 25, 07:25 UTC1h 10m
2026-05-25 QFA616 MEL → BNE May 25, 02:40 UTCMay 25, 04:35 UTC1h 55m
2026-05-24 QFA843 DRW → SYD May 24, 10:45 UTCMay 24, 20:05 UTC9h 20m
2026-05-24 QFA466 MEL → SYD May 24, 06:50 UTCMay 24, 08:10 UTC1h 20m
2026-05-24 QFA449 SYD → MEL May 24, 04:40 UTCMay 24, 05:50 UTC1h 10m
2026-05-24 QFA523 BNE → SYD May 24, 01:55 UTCMay 24, 03:05 UTC1h 10m
2026-05-23 QFA632 MEL → BNE May 23, 08:55 UTCMay 23, 10:40 UTC1h 45m
2026-05-23 QFA629 BNE → MEL May 23, 05:40 UTCMay 23, 07:50 UTC2h 10m
2026-05-23 QFA524 SYD → BNE May 23, 02:15 UTCMay 23, 03:25 UTC1h 9m
2026-05-22 QFA591 OOL → SYD May 22, 23:25 UTCMay 23, 00:30 UTC1h 5m
2026-05-22 QFA590 PER → ADL May 22, 21:25 UTCMay 22, 22:25 UTC1h 0m
2026-05-22 QFA597 BNE → PER May 22, 08:15 UTCMay 22, 09:30 UTC1h 15m
2026-05-22 QFA596 SYD → OOL May 22, 06:10 UTCMay 22, 07:15 UTC1h 5m
2026-05-22 QFA448 MEL → SYD May 22, 03:50 UTCMay 22, 04:55 UTC1h 5m
2026-05-22 QFA437 SYD → MEL May 22, 01:15 UTCMay 22, 02:15 UTC1h 0m
2026-05-21 QFA420 MEL → SYD May 21, 22:35 UTCMay 21, 23:40 UTC1h 5m
2026-05-21 QFA637 BNE → MEL May 21, 09:25 UTCMay 21, 11:25 UTC2h 0m
2026-05-21 QFA622 MEL → BNE May 21, 05:45 UTCMay 21, 07:40 UTC1h 55m
2026-05-21 QFA623 BNE → MEL May 21, 02:45 UTCMay 21, 04:45 UTC2h 0m
2026-05-20 QFA610 MEL → BNE May 20, 23:35 UTCMay 21, 01:40 UTC2h 5m
2026-05-20 QFA605 BNE → MEL May 20, 20:15 UTCMay 20, 22:35 UTC2h 20m
2026-05-20 QFA554 SYD → BNE May 20, 10:05 UTCMay 20, 11:20 UTC1h 15m
2026-05-20 QFA468 MEL → SYD May 20, 07:05 UTCMay 20, 08:10 UTC1h 5m
2026-05-20 QFA703 CNS → MEL May 20, 05:20 UTCMay 20, 05:55 UTC35m
2026-05-19 QFA702 MEL → CNS May 19, 22:45 UTCMay 19, 23:10 UTC25m
2026-05-19 QFA479 SYD → MEL May 19, 08:35 UTCMay 19, 09:45 UTC1h 10m
2026-05-19 QFA541 BNE → SYD May 19, 06:10 UTCMay 19, 07:15 UTC1h 5m
2026-05-19 QFA532 SYD → BNE May 19, 03:55 UTCMay 19, 05:10 UTC1h 15m
2026-05-18 QFA642 PER → SYD May 18, 22:30 UTCMay 19, 02:25 UTC3h 55m
2026-05-18 QFA943 BNE → PER May 18, 10:50 UTCMay 18, 15:50 UTC5h 0m
2026-05-18 QFA620 MEL → BNE May 18, 04:40 UTCMay 18, 06:40 UTC2h 0m
2026-05-18 QFA621 BNE → MEL May 18, 01:20 UTCMay 18, 03:20 UTC2h 0m
2026-05-17 QFA604 MEL → BNE May 17, 21:20 UTCMay 17, 23:10 UTC1h 50m
2026-05-17 QFA772 PER → MEL May 17, 10:30 UTCMay 17, 13:50 UTC3h 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-VXI page for operator, model, and routing details .

Mode-S 7C6D94 frequently asked

What is Mode-S code 7C6D94?
7C6D94 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VXI.
Where is Mode-S 7C6D94 registered?
Mode-S code 7C6D94 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6D94 broadcasting right now?
Yes. Mode-S 7C6D94 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6D94, octal 37066624, decimal 8,154,516.
What flights does 7C6D94 operate?
Mode-S 7C6D94 has broadcast 20 distinct callsigns, including QFA939, QFA934, QFA942, QFA937, QFA649.