Apparatus

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sensors Mode-S transponder

7C6DE3

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DE3
Octal
37066743
Decimal
8,154,595
Country
AU
Tail
VH-VZP
Type
B738
Transponder active on ground
Flights observed
371
Distinct callsigns
20
Country
AU
Last broadcast
Jul 25, 07:25 UTC

Last known position

Most recent position reported by Mode-S 7C6DE3.

Country allocation

The ICAO 24-bit address 7C6DE3 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
QFA857 - 7 2026-07-21
QFA856 Qantas 7 2026-07-21
QFA136 Qantas 7 2026-06-08
QFA170 Qantas 6 2026-07-18
QFA167 - 6 2026-07-05
QFA137 Qantas 6 2026-06-08
QFA760 - 5 2026-07-02
QFA169 Qantas 5 2026-07-17
QFA139 Qantas 5 2026-06-05
QFA133 Qantas 5 2026-07-17
QFA941 - 4 2026-07-15
QFA934 Qantas 4 2026-05-07
QFA891 - 4 2026-07-02
QFA889 - 4 2026-07-12
QFA888 - 4 2026-07-12
QFA883 - 4 2026-07-12
QFA849 - 4 2026-07-01
QFA763 Qantas 4 2026-07-20
QFA578 - 4 2026-06-27
QFA57 - 4 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 QFA184 NLK → BNE Jul 25, 02:05 UTCJul 25, 07:20 UTC5h 15m
2026-07-24 QFA197 BNE → APW Jul 24, 11:30 UTCJul 25, 00:15 UTC12h 45m
2026-07-24 QFA540 SYD → BNE Jul 24, 06:45 UTCJul 24, 07:55 UTC1h 10m
2026-07-24 QFA450 MEL → SYD Jul 24, 04:25 UTCJul 24, 05:35 UTC1h 10m
2026-07-24 QFA619 BNE → MEL Jul 24, 00:15 UTCJul 24, 02:30 UTC2h 15m
2026-07-23 QFA554 SYD → BNE Jul 23, 10:40 UTCJul 23, 11:45 UTC1h 5m
2026-07-23 QFA474 MEL → SYD Jul 23, 07:45 UTCJul 23, 08:50 UTC1h 5m
2026-07-23 QFA453 SYD → MEL Jul 23, 05:25 UTCJul 23, 06:35 UTC1h 10m
2026-07-23 QFA444 MEL → SYD Jul 23, 02:50 UTCJul 23, 03:45 UTC55m
2026-07-23 QFA433 SYD → MEL Jul 23, 00:25 UTCJul 23, 01:40 UTC1h 15m
2026-07-22 QFA416 MEL → SYD Jul 22, 21:55 UTCJul 22, 22:50 UTC55m
2026-07-22 QFA693 MEL → ADL Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-22 QFA764 ADL → SYD Jul 22, 02:55 UTCJul 22, 05:25 UTC2h 30m
2026-07-22 QFA1201 KGI → PER Jul 22, 00:30 UTCJul 22, 01:30 UTC1h 0m
2026-07-21 QFA1200 PER → KGI Jul 21, 22:45 UTCJul 21, 23:35 UTC50m
2026-07-21 QFA857 - Jul 21, 10:15 UTCJul 21, 14:30 UTC4h 15m
2026-07-21 QFA856 MEL → CBR Jul 21, 05:50 UTCJul 21, 09:10 UTC3h 20m
2026-07-20 QFA763 CBR → MEL Jul 20, 22:10 UTCJul 21, 02:05 UTC3h 54m
2026-07-19 QFA1050 MEL → BME Jul 19, 22:35 UTCJul 20, 07:40 UTC9h 5m
2026-07-19 QFA158 AKL → MEL Jul 19, 08:35 UTCJul 19, 12:10 UTC3h 35m
2026-07-19 QFA155 MEL → AKL Jul 19, 03:55 UTCJul 19, 07:05 UTC3h 10m
2026-07-18 QFA170 CHC → MEL Jul 18, 04:00 UTCJul 18, 07:25 UTC3h 25m
2026-07-17 QFA133 MEL → CHC Jul 17, 23:20 UTCJul 18, 02:29 UTC3h 10m
2026-07-17 QFA132 CHC → BNE Jul 17, 18:15 UTCJul 17, 21:39 UTC3h 25m
2026-07-17 QFA169 MEL → CHC Jul 17, 09:04 UTCJul 17, 12:15 UTC3h 10m
2026-07-17 QFA451 SYD → MEL Jul 17, 05:10 UTCJul 17, 06:15 UTC1h 5m
2026-07-17 QFA527 BNE → SYD Jul 17, 02:39 UTCJul 17, 03:50 UTC1h 10m
2026-07-17 QFA516 SYD → BNE Jul 17, 00:10 UTCJul 17, 01:29 UTC1h 20m
2026-07-16 QFA732 ADL → SYD Jul 16, 21:10 UTCJul 16, 22:55 UTC1h 45m
2026-07-16 QFA749 SYD → ADL Jul 16, 11:10 UTCJul 16, 12:49 UTC1h 40m
2026-07-16 QFA480 MEL → SYD Jul 16, 08:40 UTCJul 16, 10:00 UTC1h 20m
2026-07-16 QFA455 SYD → MEL Jul 16, 05:30 UTCJul 16, 06:40 UTC1h 10m
2026-07-16 QFA529 BNE → SYD Jul 16, 02:50 UTCJul 16, 04:00 UTC1h 10m
2026-07-16 QFA518 SYD → BNE Jul 16, 00:35 UTCJul 16, 01:40 UTC1h 5m
2026-07-15 QFA507 BNE → SYD Jul 15, 21:40 UTCJul 15, 22:55 UTC1h 15m
2026-07-15 QFA942 PER → BNE Jul 15, 15:10 UTCJul 15, 19:15 UTC4h 5m
2026-07-15 QFA941 BNE → PER Jul 15, 08:35 UTCJul 15, 13:15 UTC4h 40m
2026-07-15 QFA825 - Jul 15, 06:10 UTCJul 15, 06:45 UTC35m
2026-07-14 QFA824 - Jul 14, 22:25 UTCJul 14, 22:55 UTC29m
2026-07-14 QFA624 MEL → BNE Jul 14, 06:15 UTCJul 14, 08:05 UTC1h 50m
2026-07-14 QFA447 SYD → MEL Jul 14, 03:50 UTCJul 14, 05:05 UTC1h 15m
2026-07-14 QFA438 MEL → SYD Jul 14, 01:10 UTCJul 14, 02:15 UTC1h 5m
2026-07-13 QFA421 SYD → MEL Jul 13, 22:55 UTCJul 14, 00:05 UTC1h 10m
2026-07-13 QFA480 MEL → SYD Jul 13, 09:10 UTCJul 13, 10:10 UTC1h 0m
2026-07-13 QFA461 - Jul 13, 06:50 UTCJul 13, 08:10 UTC1h 20m
2026-07-13 QFA644 PER → SYD Jul 13, 01:15 UTCJul 13, 05:01 UTC3h 45m
2026-07-12 QFA883 ADL → PER Jul 12, 20:45 UTCJul 12, 23:50 UTC3h 5m
2026-07-12 QFA888 PER → ADL Jul 12, 09:15 UTCJul 12, 11:45 UTC2h 30m
2026-07-12 QFA889 - Jul 12, 04:55 UTCJul 12, 07:55 UTC3h 0m
2026-07-12 QFA884 PER → ADL Jul 12, 01:15 UTCJul 12, 03:45 UTC2h 30m

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

Mode-S 7C6DE3 frequently asked

What is Mode-S code 7C6DE3?
7C6DE3 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZP.
Where is Mode-S 7C6DE3 registered?
Mode-S code 7C6DE3 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DE3 broadcasting right now?
Mode-S 7C6DE3 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DE3, octal 37066743, decimal 8,154,595.
What flights does 7C6DE3 operate?
Mode-S 7C6DE3 has broadcast 20 distinct callsigns, including QFA857, QFA856, QFA136, QFA170, QFA167.