Apparatus

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sensors Mode-S transponder

7C6DEB

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DEB
Octal
37066753
Decimal
8,154,603
Country
AU
Tail
VH-VZX
Type
B738
No current signal · last broadcast 12h ago
Flights observed
333
Distinct callsigns
20
Country
AU
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 7C6DEB.

Country allocation

The ICAO 24-bit address 7C6DEB 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
QFA943 - 10 2026-07-01
QFA163 - 10 2026-07-11
QFA162 - 9 2026-07-11
QFA121 - 7 2026-07-09
QFA161 - 6 2026-07-11
QFA122 - 6 2026-07-09
QFA147 - 5 2026-07-09
QFA942 Qantas 4 2026-06-03
QFA937 Qantas 4 2026-06-08
QFA887 Qantas 4 2026-04-17
QFA882 Qantas 4 2026-04-16
QFA857 Qantas 4 2026-06-01
QFA856 Qantas 4 2026-06-01
QFA765 Qantas 4 2026-06-01
QFA185 - 4 2026-07-04
QFA164 - 4 2026-07-11
QFA132 - 4 2026-07-05
QFA932 Qantas 3 2026-06-07
QFA848 - 3 2026-06-24
QFA743 - 3 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA145 - Jul 14, 07:25 UTCJul 14, 07:55 UTC30m
2026-07-14 QFA117 BNE → AKL Jul 14, 02:10 UTCJul 14, 05:25 UTC3h 15m
2026-07-13 QFA198 BNE → BNE Jul 13, 11:45 UTCJul 14, 00:20 UTC12h 35m
2026-07-13 QFA938 PER → BNE Jul 13, 05:01 UTCJul 13, 09:30 UTC4h 30m
2026-07-12 QFA935 BNE → PER Jul 12, 22:40 UTCJul 13, 03:55 UTC5h 15m
2026-07-12 QFA500 SYD → BNE Jul 12, 20:01 UTCJul 12, 21:40 UTC1h 40m
2026-07-12 QFA182 - Jul 12, 06:50 UTCJul 12, 09:55 UTC3h 5m
2026-07-12 QFA181 - Jul 12, 02:45 UTCJul 12, 05:15 UTC2h 30m
2026-07-11 QFA162 WLG → SYD Jul 11, 17:55 UTCJul 11, 21:30 UTC3h 35m
2026-07-11 QFA163 - Jul 11, 11:30 UTCJul 11, 11:50 UTC20m
2026-07-11 QFA163 - Jul 11, 08:45 UTCJul 11, 09:30 UTC45m
2026-07-11 QFA164 WLG → SYD Jul 11, 03:55 UTCJul 11, 07:15 UTC3h 20m
2026-07-11 QFA161 - Jul 11, 02:30 UTCJul 11, 02:45 UTC15m
2026-07-10 QFA161 - Jul 10, 23:35 UTCJul 11, 00:30 UTC55m
2026-07-10 QFA162 - Jul 10, 20:45 UTCJul 10, 21:40 UTC55m
2026-07-10 QFA162 - Jul 10, 18:15 UTCJul 10, 18:35 UTC20m
2026-07-10 QFA163 - Jul 10, 12:35 UTCJul 10, 12:55 UTC20m
2026-07-10 QFA163 - Jul 10, 09:40 UTCJul 10, 10:35 UTC55m
2026-07-10 QFA146 - Jul 10, 04:25 UTCJul 10, 08:10 UTC3h 45m
2026-07-09 QFA153 MEL → AKL Jul 9, 23:40 UTCJul 10, 03:05 UTC3h 25m
2026-07-09 QFA152 - Jul 9, 18:30 UTCJul 9, 22:15 UTC3h 45m
2026-07-09 QFA147 SYD → AKL Jul 9, 09:25 UTCJul 9, 12:05 UTC2h 40m
2026-07-09 QFA122 - Jul 9, 04:50 UTCJul 9, 07:55 UTC3h 5m
2026-07-09 QFA121 - Jul 9, 00:00 UTCJul 9, 02:40 UTC2h 40m
2026-07-08 QFA124 AKL → BNE Jul 8, 19:15 UTCJul 8, 22:30 UTC3h 15m
2026-07-08 QFA123 - Jul 8, 06:05 UTCJul 8, 08:50 UTC2h 45m
2026-07-08 QFA144 - Jul 8, 01:35 UTCJul 8, 04:55 UTC3h 20m
2026-07-07 QFA141 SYD → AKL Jul 7, 21:20 UTCJul 8, 00:05 UTC2h 45m
2026-07-06 QFA101 SYD → SYD Jul 6, 23:00 UTCJul 7, 08:50 UTC9h 50m
2026-07-06 QFA138 - Jul 6, 18:25 UTCJul 6, 21:25 UTC3h 0m
2026-07-06 QFA135 - Jul 6, 08:55 UTCJul 6, 12:25 UTC3h 30m
2026-07-06 QFA134 - Jul 6, 04:05 UTCJul 6, 07:25 UTC3h 20m
2026-07-06 QFA133 - Jul 6, 02:15 UTCJul 6, 02:35 UTC20m
2026-07-05 QFA133 - Jul 5, 23:05 UTCJul 6, 00:05 UTC1h 0m
2026-07-05 QFA132 - Jul 5, 20:25 UTCJul 5, 21:30 UTC1h 5m
2026-07-05 QFA132 - Jul 5, 18:10 UTCJul 5, 18:25 UTC15m
2026-07-05 QFA135 - Jul 5, 11:50 UTCJul 5, 12:10 UTC20m
2026-07-05 QFA135 - Jul 5, 08:55 UTCJul 5, 09:50 UTC55m
2026-07-05 QFA196 - Jul 5, 06:05 UTCJul 5, 07:05 UTC1h 0m
2026-07-05 QFA196 - Jul 5, 03:25 UTCJul 5, 03:45 UTC20m
2026-07-05 QFA195 - Jul 5, 02:05 UTCJul 5, 02:20 UTC15m
2026-07-04 QFA195 - Jul 4, 23:15 UTCJul 5, 00:05 UTC50m
2026-07-04 QFA186 - Jul 4, 07:00 UTCJul 4, 10:35 UTC3h 35m
2026-07-04 QFA185 - Jul 4, 05:10 UTCJul 4, 05:20 UTC10m
2026-07-04 QFA185 - Jul 4, 02:30 UTCJul 4, 03:20 UTC50m
2026-07-03 QFA600 MEL → BNE Jul 3, 20:05 UTCJul 3, 22:20 UTC2h 15m
2026-07-03 QFA772 PER → MEL Jul 3, 09:45 UTCJul 3, 13:20 UTC3h 35m
2026-07-03 QFA78 - Jul 3, 02:50 UTCJul 3, 07:50 UTC5h 0m
2026-07-02 QFA77 - Jul 2, 15:15 UTCJul 2, 20:30 UTC5h 15m
2026-07-02 QFA939 BNE → PER Jul 2, 05:20 UTCJul 2, 11:15 UTC5h 55m

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

Mode-S 7C6DEB frequently asked

What is Mode-S code 7C6DEB?
7C6DEB is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZX.
Where is Mode-S 7C6DEB registered?
Mode-S code 7C6DEB is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DEB broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DEB, octal 37066753, decimal 8,154,603.
What flights does 7C6DEB operate?
Mode-S 7C6DEB has broadcast 20 distinct callsigns, including QFA943, QFA163, QFA162, QFA121, QFA161.