Apparatus

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sensors Mode-S transponder

7C6DBA

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DBA
Octal
37066672
Decimal
8,154,554
Country
AU
Tail
VH-VYK
Type
B738
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
426
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 7C6DBA.

Country allocation

The ICAO 24-bit address 7C6DBA 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
QFA739 Qantas 10 2026-07-19
QFA738 - 8 2026-07-11
QFA442 - 8 2026-06-23
QFA744 Qantas 7 2026-07-19
QFA615 Qantas 7 2026-07-22
QFA589 - 7 2026-06-27
QFA451 - 7 2026-07-01
QFA733 - 6 2026-07-10
QFA629 - 6 2026-07-17
QFA767 - 5 2026-06-30
QFA749 - 5 2026-07-19
QFA670 - 5 2026-07-19
QFA605 Qantas 5 2026-07-17
QFA598 Qantas 5 2026-05-27
QFA593 - 5 2026-07-06
QFA592 - 5 2026-07-06
QFA512 - 5 2026-07-07
QFA919 Qantas 4 2026-07-26
QFA918 Qantas 4 2026-07-25
QFA763 - 4 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA608 MEL → BNE Jul 26, 22:20 UTCJul 26, 22:30 UTC10m
2026-07-26 QFA917 KTA → PER Jul 26, 08:40 UTCJul 26, 10:55 UTC2h 15m
2026-07-26 QFA916 PER → KTA Jul 26, 05:40 UTCJul 26, 07:40 UTC2h 1m
2026-07-26 QFA919 KTA → PER Jul 26, 02:10 UTCJul 26, 04:35 UTC2h 25m
2026-07-25 QFA918 PER → KTA Jul 25, 23:00 UTCJul 26, 01:00 UTC2h 0m
2026-07-25 QFA475 MEL → PER Jul 25, 08:05 UTCJul 25, 09:10 UTC1h 5m
2026-07-25 QFA742 MEL → CBR Jul 25, 05:00 UTCJul 25, 06:30 UTC1h 30m
2026-07-25 QFA737 CBR → ADL Jul 25, 03:35 UTCJul 25, 04:00 UTC25m
2026-07-25 QFA737 CBR → ADL Jul 25, 02:20 UTCJul 25, 02:50 UTC30m
2026-07-24 QFA736 ADL → SYD Jul 24, 23:30 UTCJul 25, 01:05 UTC1h 35m
2026-07-24 QFA697 MEL → ADL Jul 24, 09:20 UTCJul 24, 10:20 UTC1h 0m
2026-07-24 QFA690 ADL → MEL Jul 24, 07:10 UTCJul 24, 08:15 UTC1h 5m
2026-07-24 QFA687 MEL → ADL Jul 24, 05:10 UTCJul 24, 06:10 UTC1h 0m
2026-07-24 QFA762 PER → MEL Jul 24, 00:25 UTCJul 24, 03:45 UTC3h 20m
2026-07-23 QFA939 BNE → PER Jul 23, 05:40 UTCJul 23, 11:25 UTC5h 45m
2026-07-23 QFA616 MEL → BNE Jul 23, 02:55 UTCJul 23, 04:45 UTC1h 50m
2026-07-22 QFA615 BNE → MEL Jul 22, 23:25 UTCJul 23, 01:45 UTC2h 20m
2026-07-22 QFA708 - Jul 22, 02:45 UTCJul 22, 04:05 UTC1h 20m
2026-07-21 QFA706 BNE → BNE Jul 21, 20:20 UTCJul 22, 01:15 UTC4h 55m
2026-07-21 QFA942 PER → BNE Jul 21, 15:05 UTCJul 21, 19:00 UTC3h 55m
2026-07-21 QFA891 ADL → PER Jul 21, 09:40 UTCJul 21, 12:45 UTC3h 5m
2026-07-21 QFA886 PER → ADL Jul 21, 06:05 UTCJul 21, 08:30 UTC2h 25m
2026-07-20 QFA1207 CBR → MEL Jul 20, 22:15 UTCJul 21, 03:15 UTC4h 59m
2026-07-20 QFA889 ADL → PER Jul 20, 04:55 UTCJul 20, 08:10 UTC3h 15m
2026-07-20 QFA683 MEL → ADL Jul 20, 03:00 UTCJul 20, 04:00 UTC1h 0m
2026-07-20 QFA678 ADL → MEL Jul 20, 01:00 UTCJul 20, 01:50 UTC50m
2026-07-19 QFA675 MEL → ADL Jul 19, 22:55 UTCJul 19, 23:55 UTC1h 0m
2026-07-19 QFA670 ADL → MEL Jul 19, 20:35 UTCJul 19, 21:35 UTC1h 0m
2026-07-19 QFA749 SYD → ADL Jul 19, 11:20 UTCJul 19, 13:00 UTC1h 40m
2026-07-19 QFA744 ADL → SYD Jul 19, 07:45 UTCJul 19, 09:25 UTC1h 40m
2026-07-19 QFA739 SYD → ADL Jul 19, 04:55 UTCJul 19, 06:35 UTC1h 40m
2026-07-19 QFA527 BNE → SYD Jul 19, 02:25 UTCJul 19, 03:35 UTC1h 10m
2026-07-18 QFA608 MEL → BNE Jul 18, 22:15 UTCJul 18, 23:55 UTC1h 40m
2026-07-18 QFA625 BNE → MEL Jul 18, 03:35 UTCJul 18, 05:40 UTC2h 5m
2026-07-18 QFA612 MEL → BNE Jul 18, 00:25 UTCJul 18, 02:14 UTC1h 50m
2026-07-17 QFA605 BNE → MEL Jul 17, 20:10 UTCJul 17, 22:10 UTC2h 0m
2026-07-17 QFA632 MEL → BNE Jul 17, 08:54 UTCJul 17, 10:44 UTC1h 50m
2026-07-17 QFA629 - Jul 17, 05:39 UTCJul 17, 07:40 UTC2h 0m
2026-07-17 QFA616 MEL → BNE Jul 17, 02:39 UTCJul 17, 04:35 UTC1h 55m
2026-07-16 QFA615 BNE → MEL Jul 16, 23:25 UTCJul 17, 01:20 UTC1h 55m
2026-07-16 QFA600 MEL → BNE Jul 16, 20:15 UTCJul 16, 22:10 UTC1h 55m
2026-07-16 QFA479 SYD → MEL Jul 16, 09:10 UTCJul 16, 10:20 UTC1h 10m
2026-07-16 QFA462 MEL → SYD Jul 16, 06:15 UTCJul 16, 07:30 UTC1h 15m
2026-07-16 QFA919 MCY → MEL Jul 16, 03:00 UTCJul 16, 05:00 UTC2h 0m
2026-07-15 QFA918 MEL → MCY Jul 15, 23:35 UTCJul 16, 01:35 UTC2h 0m
2026-07-15 QFA605 BNE → MEL Jul 15, 20:20 UTCJul 15, 22:15 UTC1h 55m
2026-07-15 QFA632 MEL → BNE Jul 15, 08:55 UTCJul 15, 10:45 UTC1h 50m
2026-07-15 QFA766 PER → MEL Jul 15, 04:40 UTCJul 15, 07:55 UTC3h 15m
2026-07-14 QFA763 MEL → PER Jul 14, 23:35 UTCJul 15, 03:30 UTC3h 55m
2026-07-14 QFA670 ADL → MEL Jul 14, 20:35 UTCJul 14, 21:45 UTC1h 10m

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

Mode-S 7C6DBA frequently asked

What is Mode-S code 7C6DBA?
7C6DBA is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VYK.
Where is Mode-S 7C6DBA registered?
Mode-S code 7C6DBA is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DBA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DBA, octal 37066672, decimal 8,154,554.
What flights does 7C6DBA operate?
Mode-S 7C6DBA has broadcast 20 distinct callsigns, including QFA739, QFA738, QFA442, QFA744, QFA615.