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 Jul 26, 21:40 UTC
Flights observed
376
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 21:40 UTC

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 - 13 2026-07-20
QFA163 - 11 2026-07-16
QFA162 - 10 2026-07-16
QFA185 Qantas 8 2026-07-23
QFA161 - 8 2026-07-16
QFA121 - 7 2026-07-09
QFA122 - 6 2026-07-09
QFA935 Qantas 5 2026-07-20
QFA186 Qantas 5 2026-07-23
QFA164 - 5 2026-07-16
QFA147 - 5 2026-07-09
QFA134 Qantas 5 2026-07-26
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
QFA558 - 4 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA140 AKL → SYD Jul 26, 18:30 UTCJul 26, 21:40 UTC3h 10m
2026-07-26 QFA125 BNE → AKL Jul 26, 08:55 UTCJul 26, 11:30 UTC2h 35m
2026-07-26 QFA134 CHC → BNE Jul 26, 06:30 UTCJul 26, 07:35 UTC1h 6m
2026-07-26 QFA134 CHC → BNE Jul 26, 03:55 UTCJul 26, 04:05 UTC10m
2026-07-26 QFA167 MEL → CHC Jul 26, 02:20 UTCJul 26, 02:35 UTC15m
2026-07-25 QFA167 MEL → CHC Jul 25, 23:20 UTCJul 26, 00:10 UTC50m
2026-07-25 QFA152 AKL → MEL Jul 25, 18:20 UTCJul 25, 22:20 UTC4h 0m
2026-07-25 QFA155 MEL → AKL Jul 25, 07:00 UTCJul 25, 10:15 UTC3h 15m
2026-07-25 QFA154 AKL → MEL Jul 25, 02:05 UTCJul 25, 06:05 UTC4h 0m
2026-07-24 QFA151 MEL → AKL Jul 24, 20:30 UTCJul 24, 23:50 UTC3h 20m
2026-07-24 QFA485 MEL → PER Jul 24, 09:15 UTCJul 24, 10:55 UTC1h 40m
2026-07-23 QFA204 POM → SYD Jul 23, 23:10 UTCJul 24, 06:55 UTC7h 45m
2026-07-23 QFA186 ZQN → BNE Jul 23, 04:55 UTCJul 23, 08:40 UTC3h 45m
2026-07-23 QFA185 BNE → ZQN Jul 23, 03:05 UTCJul 23, 03:20 UTC15m
2026-07-23 QFA185 BNE → ZQN Jul 23, 00:20 UTCJul 23, 01:15 UTC55m
2026-07-22 QFA558 SYD → BNE Jul 22, 11:45 UTCJul 22, 13:25 UTC1h 40m
2026-07-21 QFA179 SYD → NLK Jul 21, 23:55 UTCJul 22, 05:25 UTC5h 30m
2026-07-21 QFA474 MEL → SYD Jul 21, 07:25 UTCJul 21, 08:55 UTC1h 30m
2026-07-21 QFA764 ADL → SYD Jul 21, 02:50 UTCJul 21, 06:05 UTC3h 15m
2026-07-20 QFA1086 PER → ZNE Jul 20, 21:10 UTCJul 21, 01:35 UTC4h 24m
2026-07-20 QFA943 - Jul 20, 15:15 UTCJul 20, 15:50 UTC35m
2026-07-20 QFA943 - Jul 20, 12:40 UTCJul 20, 13:15 UTC35m
2026-07-20 QFA943 - Jul 20, 10:45 UTCJul 20, 11:50 UTC1h 5m
2026-07-20 QFA938 PER → BNE Jul 20, 05:10 UTCJul 20, 09:15 UTC4h 5m
2026-07-20 QFA935 BNE → PER Jul 20, 03:10 UTCJul 20, 03:50 UTC40m
2026-07-20 QFA935 BNE → PER Jul 20, 00:35 UTCJul 20, 01:00 UTC25m
2026-07-19 QFA935 BNE → PER Jul 19, 22:45 UTCJul 19, 23:40 UTC55m
2026-07-18 QFA58 BNE → BNE Jul 18, 23:10 UTCJul 19, 08:55 UTC9h 45m
2026-07-18 QFA186 ZQN → BNE Jul 18, 07:15 UTCJul 18, 10:25 UTC3h 10m
2026-07-18 QFA185 BNE → ZQN Jul 18, 05:35 UTCJul 18, 05:45 UTC10m
2026-07-18 QFA185 BNE → ZQN Jul 18, 02:40 UTCJul 18, 03:40 UTC1h 1m
2026-07-17 QFA198 BNE → BNE Jul 17, 13:50 UTCJul 18, 01:25 UTC11h 35m
2026-07-16 QFA203 SYD → POM Jul 16, 23:40 UTCJul 17, 08:00 UTC8h 20m
2026-07-16 QFA162 WLG → SYD Jul 16, 18:00 UTCJul 16, 21:10 UTC3h 10m
2026-07-16 QFA163 SYD → WLG Jul 16, 08:40 UTCJul 16, 12:05 UTC3h 25m
2026-07-16 QFA164 WLG → SYD Jul 16, 03:55 UTCJul 16, 07:10 UTC3h 15m
2026-07-16 QFA161 - Jul 16, 02:35 UTCJul 16, 02:50 UTC15m
2026-07-15 QFA161 - Jul 15, 23:35 UTCJul 16, 00:15 UTC40m
2026-07-15 QFA140 - Jul 15, 18:30 UTCJul 15, 21:40 UTC3h 10m
2026-07-15 QFA125 - Jul 15, 11:45 UTCJul 15, 12:05 UTC20m
2026-07-15 QFA125 - Jul 15, 09:00 UTCJul 15, 09:55 UTC55m
2026-07-15 QFA118 - Jul 15, 01:55 UTCJul 15, 02:55 UTC1h 0m
2026-07-14 QFA118 - Jul 14, 23:35 UTCJul 14, 23:45 UTC10m
2026-07-14 QFA144 - Jul 14, 07:25 UTCJul 14, 21:55 UTC14h 30m
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

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 Jul 26, 21:40 UTC.
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, QFA185, QFA161.