Apparatus

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sensors Mode-S transponder

7C6DE5

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DE5
Octal
37066745
Decimal
8,154,597
Country
AU
Tail
VH-VZR
Type
B738
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
349
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 7C6DE5.

Country allocation

The ICAO 24-bit address 7C6DE5 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
QFA164 - 10 2026-07-14
QFA162 Qantas 9 2026-07-25
QFA163 Qantas 8 2026-07-25
QFA161 - 8 2026-07-14
QFA139 - 7 2026-07-17
QFA137 Qantas 7 2026-07-21
QFA136 Qantas 6 2026-07-21
QFA837 - 5 2026-07-08
QFA578 Qantas 5 2026-07-20
QFA151 Qantas 5 2026-07-22
QFA143 Qantas 5 2026-07-25
QFA138 - 5 2026-07-17
QFA937 Qantas 4 2026-05-12
QFA888 Qantas 4 2026-05-25
QFA579 Qantas 4 2026-07-20
QFA184 - 4 2026-06-27
QFA168 - 4 2026-06-24
QFA155 - 4 2026-07-16
QFA144 Qantas 4 2026-07-23
QFA857 - 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA120 AKL → BNE Jul 26, 18:20 UTCJul 26, 21:15 UTC2h 55m
2026-07-26 QFA157 MEL → AKL Jul 26, 12:40 UTCJul 26, 13:00 UTC20m
2026-07-26 QFA157 MEL → AKL Jul 26, 09:50 UTCJul 26, 10:45 UTC55m
2026-07-26 QFA156 AKL → MEL Jul 26, 03:25 UTCJul 26, 07:10 UTC3h 46m
2026-07-25 QFA143 SYD → AKL Jul 25, 23:10 UTCJul 26, 01:35 UTC2h 25m
2026-07-25 QFA162 WLG → SYD Jul 25, 18:05 UTCJul 25, 21:20 UTC3h 15m
2026-07-25 QFA163 SYD → WLG Jul 25, 09:30 UTCJul 25, 12:00 UTC2h 30m
2026-07-25 QFA92 NOU → SYD Jul 25, 04:35 UTCJul 25, 06:00 UTC1h 25m
2026-07-24 QFA91 SYD → NOU Jul 24, 23:15 UTCJul 25, 00:10 UTC55m
2026-07-24 QFA650 PER → BNE Jul 24, 06:55 UTCJul 24, 10:30 UTC3h 35m
2026-07-24 QFA645 SYD → PER Jul 24, 01:00 UTCJul 24, 05:20 UTC4h 20m
2026-07-23 QFA416 MEL → SYD Jul 23, 22:30 UTCJul 23, 23:35 UTC1h 5m
2026-07-23 QFA485 MEL → PER Jul 23, 09:35 UTCJul 23, 10:40 UTC1h 5m
2026-07-23 QFA144 AKL → SYD Jul 23, 01:55 UTCJul 23, 05:15 UTC3h 20m
2026-07-22 QFA151 MEL → AKL Jul 22, 20:45 UTCJul 23, 00:00 UTC3h 15m
2026-07-21 QFA728 SYD → AYQ Jul 21, 23:45 UTCJul 22, 00:20 UTC35m
2026-07-21 QFA136 CHC → SYD Jul 21, 05:30 UTCJul 21, 08:40 UTC3h 10m
2026-07-21 QFA137 SYD → CHC Jul 21, 03:55 UTCJul 21, 04:10 UTC15m
2026-07-21 QFA137 SYD → CHC Jul 21, 01:35 UTCJul 21, 02:10 UTC35m
2026-07-20 QFA579 SYD → PER Jul 20, 03:05 UTCJul 20, 05:05 UTC2h 0m
2026-07-20 QFA578 PER → SYD Jul 20, 01:45 UTCJul 20, 02:00 UTC15m
2026-07-20 QFA578 PER → SYD Jul 20, 00:05 UTCJul 20, 00:50 UTC45m
2026-07-19 QFA410 MEL → SYD Jul 19, 21:15 UTCJul 19, 22:25 UTC1h 10m
2026-07-19 QFA477 SYD → MEL Jul 19, 08:25 UTCJul 19, 09:30 UTC1h 5m
2026-07-19 QFA179 SYD → NLK Jul 19, 00:25 UTCJul 19, 05:10 UTC4h 45m
2026-07-17 QFA101 SYD → SYD Jul 17, 23:30 UTCJul 18, 08:40 UTC9h 11m
2026-07-17 QFA138 CHC → SYD Jul 17, 18:25 UTCJul 17, 21:30 UTC3h 5m
2026-07-17 QFA139 - Jul 17, 09:40 UTCJul 17, 12:25 UTC2h 45m
2026-07-17 QFA146 - Jul 17, 06:50 UTCJul 17, 07:44 UTC55m
2026-07-17 QFA146 - Jul 17, 04:39 UTCJul 17, 04:49 UTC10m
2026-07-16 QFA153 MEL → AKL Jul 16, 23:49 UTCJul 17, 03:10 UTC3h 20m
2026-07-16 QFA152 - Jul 16, 18:19 UTCJul 16, 21:55 UTC3h 35m
2026-07-16 QFA155 MEL → AKL Jul 16, 07:15 UTCJul 16, 10:40 UTC3h 25m
2026-07-16 QFA154 - Jul 16, 02:20 UTCJul 16, 05:40 UTC3h 20m
2026-07-15 QFA141 SYD → AKL Jul 15, 22:00 UTCJul 16, 00:55 UTC2h 55m
2026-07-15 QFA122 - Jul 15, 04:05 UTCJul 15, 06:35 UTC2h 30m
2026-07-15 QFA121 - Jul 15, 00:00 UTCJul 15, 02:30 UTC2h 30m
2026-07-14 QFA162 - Jul 14, 20:50 UTCJul 14, 21:30 UTC40m
2026-07-14 QFA162 - Jul 14, 18:20 UTCJul 14, 18:30 UTC10m
2026-07-14 QFA163 - Jul 14, 11:30 UTCJul 14, 11:40 UTC10m
2026-07-14 QFA163 - Jul 14, 09:05 UTCJul 14, 09:35 UTC30m
2026-07-14 QFA164 WLG → SYD Jul 14, 04:15 UTCJul 14, 07:40 UTC3h 25m
2026-07-14 QFA161 - Jul 14, 02:50 UTCJul 14, 03:00 UTC10m
2026-07-14 QFA161 - Jul 14, 00:25 UTCJul 14, 00:55 UTC30m
2026-07-13 QFA559 BNE → SYD Jul 13, 11:10 UTCJul 13, 12:25 UTC1h 15m
2026-07-13 QFA626 MEL → BNE Jul 13, 06:45 UTCJul 13, 08:35 UTC1h 50m
2026-07-13 QFA625 BNE → MEL Jul 13, 03:30 UTCJul 13, 05:35 UTC2h 5m
2026-07-12 QFA932 PER → BNE Jul 12, 22:15 UTCJul 13, 02:05 UTC3h 50m
2026-07-12 QFA857 - Jul 12, 10:45 UTCJul 12, 15:01 UTC4h 15m
2026-07-12 QFA856 - Jul 12, 06:05 UTCJul 12, 09:30 UTC3h 25m

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

Mode-S 7C6DE5 frequently asked

What is Mode-S code 7C6DE5?
7C6DE5 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZR.
Where is Mode-S 7C6DE5 registered?
Mode-S code 7C6DE5 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DE5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DE5, octal 37066745, decimal 8,154,597.
What flights does 7C6DE5 operate?
Mode-S 7C6DE5 has broadcast 20 distinct callsigns, including QFA164, QFA162, QFA163, QFA161, QFA139.