Apparatus

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sensors Mode-S transponder

7C6DE7

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DE7
Octal
37066747
Decimal
8,154,599
Country
AU
Tail
VH-VZT
Type
B738
No current signal · last broadcast 11h ago
Flights observed
332
Distinct callsigns
20
Country
AU
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 7C6DE7.

Country allocation

The ICAO 24-bit address 7C6DE7 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
QFA162 - 12 2026-07-08
QFA163 - 11 2026-07-08
QFA161 - 10 2026-07-03
QFA164 - 8 2026-07-03
QFA168 - 7 2026-07-09
QFA157 - 7 2026-07-06
QFA143 - 7 2026-07-08
QFA156 - 6 2026-07-09
QFA148 - 6 2026-07-01
QFA145 - 6 2026-07-01
QFA142 - 6 2026-06-30
QFA170 - 4 2026-06-29
QFA155 - 4 2026-06-30
QFA123 - 4 2026-06-19
QFA777 Qantas 3 2026-06-03
QFA632 Qantas 3 2026-06-02
QFA185 - 3 2026-07-02
QFA169 - 3 2026-07-09
QFA158 - 3 2026-06-28
QFA153 - 3 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA597 - Jul 14, 08:10 UTCJul 14, 09:15 UTC1h 5m
2026-07-14 QFA596 - Jul 14, 06:05 UTCJul 14, 07:05 UTC1h 0m
2026-07-14 QFA740 - Jul 14, 03:25 UTCJul 14, 05:00 UTC1h 35m
2026-07-14 QFA735 SYD → ADL Jul 14, 00:45 UTCJul 14, 02:35 UTC1h 50m
2026-07-13 QFA509 BNE → SYD Jul 13, 22:00 UTCJul 13, 23:10 UTC1h 10m
2026-07-13 QFA942 PER → BNE Jul 13, 15:20 UTCJul 13, 19:15 UTC3h 55m
2026-07-13 QFA891 ADL → PER Jul 13, 09:35 UTCJul 13, 12:30 UTC2h 55m
2026-07-13 QFA886 PER → ADL Jul 13, 05:50 UTCJul 13, 08:20 UTC2h 30m
2026-07-13 QFA887 ADL → PER Jul 13, 01:25 UTCJul 13, 04:25 UTC3h 0m
2026-07-12 QFA882 PER → ADL Jul 12, 21:50 UTCJul 13, 00:10 UTC2h 20m
2026-07-12 QFA651 SYD → PER Jul 12, 06:50 UTCJul 12, 11:20 UTC4h 30m
2026-07-12 QFA579 - Jul 12, 03:25 UTCJul 12, 05:25 UTC2h 0m
2026-07-12 QFA578 - Jul 12, 00:01 UTCJul 12, 01:55 UTC1h 55m
2026-07-11 QFA730 ADL → SYD Jul 11, 20:45 UTCJul 11, 22:15 UTC1h 30m
2026-07-11 QFA888 PER → ADL Jul 11, 09:10 UTCJul 11, 11:40 UTC2h 30m
2026-07-11 QFA889 ADL → PER Jul 11, 05:01 UTCJul 11, 08:01 UTC3h 0m
2026-07-11 QFA679 MEL → ADL Jul 11, 00:50 UTCJul 11, 01:55 UTC1h 5m
2026-07-10 QFA690 ADL → MEL Jul 10, 07:15 UTCJul 10, 08:20 UTC1h 5m
2026-07-10 QFA687 MEL → ADL Jul 10, 05:25 UTCJul 10, 06:25 UTC1h 0m
2026-07-10 QFA682 ADL → MEL Jul 10, 02:45 UTCJul 10, 03:45 UTC1h 0m
2026-07-10 QFA679 MEL → ADL Jul 10, 00:45 UTCJul 10, 01:45 UTC1h 0m
2026-07-09 QFA168 - Jul 9, 21:15 UTCJul 9, 22:00 UTC45m
2026-07-09 QFA168 - Jul 9, 18:45 UTCJul 9, 18:55 UTC10m
2026-07-09 QFA169 - Jul 9, 08:50 UTCJul 9, 11:50 UTC3h 0m
2026-07-09 QFA156 - Jul 9, 03:35 UTCJul 9, 07:10 UTC3h 35m
2026-07-08 QFA143 - Jul 8, 23:40 UTCJul 9, 02:05 UTC2h 25m
2026-07-08 QFA162 - Jul 8, 20:50 UTCJul 8, 21:50 UTC1h 0m
2026-07-08 QFA162 - Jul 8, 18:25 UTCJul 8, 18:40 UTC15m
2026-07-08 QFA163 - Jul 8, 11:55 UTCJul 8, 12:05 UTC10m
2026-07-08 QFA163 - Jul 8, 09:25 UTCJul 8, 09:50 UTC25m
2026-07-08 QFA146 - Jul 8, 04:35 UTCJul 8, 07:55 UTC3h 20m
2026-07-08 QFA153 MEL → AKL Jul 8, 00:00 UTCJul 8, 03:10 UTC3h 10m
2026-07-07 QFA168 - Jul 7, 21:10 UTCJul 7, 21:55 UTC45m
2026-07-07 QFA168 - Jul 7, 18:30 UTCJul 7, 18:40 UTC10m
2026-07-07 QFA135 - Jul 7, 09:05 UTCJul 7, 12:10 UTC3h 5m
2026-07-06 QFA57 BNE → BNE Jul 6, 23:45 UTCJul 7, 07:05 UTC7h 20m
2026-07-06 QFA120 - Jul 6, 18:55 UTCJul 6, 22:10 UTC3h 15m
2026-07-06 QFA157 MEL → AKL Jul 6, 08:50 UTCJul 6, 12:10 UTC3h 20m
2026-07-06 QFA154 - Jul 6, 01:50 UTCJul 6, 05:10 UTC3h 20m
2026-07-05 QFA141 SYD → AKL Jul 5, 21:25 UTCJul 6, 00:00 UTC2h 35m
2026-07-05 QFA557 BNE → SYD Jul 5, 10:10 UTCJul 5, 11:15 UTC1h 5m
2026-07-05 QFA626 MEL → BNE Jul 5, 07:20 UTCJul 5, 09:15 UTC1h 55m
2026-07-05 QFA178 - Jul 5, 02:45 UTCJul 5, 05:40 UTC2h 55m
2026-07-04 QFA177 MEL → ZQN Jul 4, 22:05 UTCJul 5, 00:45 UTC2h 40m
2026-07-04 QFA156 - Jul 4, 03:35 UTCJul 4, 07:20 UTC3h 45m
2026-07-04 QFA143 - Jul 4, 01:50 UTCJul 4, 02:10 UTC20m
2026-07-03 QFA143 - Jul 3, 23:40 UTCJul 4, 00:10 UTC30m
2026-07-03 QFA162 - Jul 3, 20:35 UTCJul 3, 21:20 UTC45m
2026-07-03 QFA162 - Jul 3, 18:05 UTCJul 3, 18:20 UTC15m
2026-07-03 QFA163 SYD → WLG Jul 3, 09:15 UTCJul 3, 11:50 UTC2h 35m

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

Mode-S 7C6DE7 frequently asked

What is Mode-S code 7C6DE7?
7C6DE7 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZT.
Where is Mode-S 7C6DE7 registered?
Mode-S code 7C6DE7 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DE7 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DE7, octal 37066747, decimal 8,154,599.
What flights does 7C6DE7 operate?
Mode-S 7C6DE7 has broadcast 20 distinct callsigns, including QFA162, QFA163, QFA161, QFA164, QFA168.