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
Broadcasting now · callsign QFA624 · 23,850 ft
Flights observed
332
Distinct callsigns
20
Country
AU
Last broadcast
1h ago

Current position

7C6DE3 is currently broadcasting. Map zoomed to live position.

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
QFA136 Qantas 7 2026-06-08
QFA857 - 6 2026-07-11
QFA856 - 6 2026-07-11
QFA167 - 6 2026-07-05
QFA137 Qantas 6 2026-06-08
QFA760 - 5 2026-07-02
QFA170 - 5 2026-07-06
QFA139 Qantas 5 2026-06-05
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
QFA578 - 4 2026-06-27
QFA57 - 4 2026-07-08
QFA169 - 4 2026-07-06
QFA151 Qantas 4 2026-05-18
QFA134 - 4 2026-07-07
QFA133 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA624 - Jul 14, 06:15 UTCJul 14, 06:45 UTC30m
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
2026-07-11 QFA857 - Jul 11, 04:50 UTCJul 11, 09:05 UTC4h 15m
2026-07-11 QFA856 - Jul 11, 00:15 UTCJul 11, 03:40 UTC3h 25m
2026-07-10 QFA78 - Jul 10, 02:50 UTCJul 10, 07:40 UTC4h 50m
2026-07-09 QFA77 - Jul 9, 15:40 UTCJul 9, 20:35 UTC4h 55m
2026-07-09 QFA941 BNE → PER Jul 9, 08:40 UTCJul 9, 13:45 UTC5h 5m
2026-07-08 QFA57 BNE → BNE Jul 8, 23:45 UTCJul 9, 06:25 UTC6h 40m
2026-07-08 QFA946 PER → BNE Jul 8, 07:50 UTCJul 8, 11:45 UTC3h 55m
2026-07-08 QFA945 BNE → PER Jul 8, 01:10 UTCJul 8, 06:20 UTC5h 10m
2026-07-07 QFA510 SYD → BNE Jul 7, 23:00 UTCJul 8, 00:05 UTC1h 5m
2026-07-07 QFA501 BNE → SYD Jul 7, 20:15 UTCJul 7, 21:45 UTC1h 30m
2026-07-07 QFA134 - Jul 7, 04:10 UTCJul 7, 07:30 UTC3h 20m
2026-07-06 QFA133 - Jul 6, 23:40 UTCJul 7, 02:55 UTC3h 15m
2026-07-06 QFA132 - Jul 6, 18:10 UTCJul 6, 21:25 UTC3h 15m
2026-07-06 QFA169 - Jul 6, 08:40 UTCJul 6, 12:00 UTC3h 20m
2026-07-06 QFA170 - Jul 6, 06:25 UTCJul 6, 07:05 UTC40m
2026-07-06 QFA170 - Jul 6, 04:00 UTCJul 6, 04:10 UTC10m
2026-07-05 QFA167 - Jul 5, 23:30 UTCJul 6, 02:55 UTC3h 25m
2026-07-05 QFA168 - Jul 5, 18:25 UTCJul 5, 21:25 UTC3h 0m
2026-07-05 QFA169 - Jul 5, 11:45 UTCJul 5, 12:05 UTC20m
2026-07-05 QFA169 - Jul 5, 08:55 UTCJul 5, 09:25 UTC30m
2026-07-05 QFA170 - Jul 5, 04:00 UTCJul 5, 07:10 UTC3h 10m
2026-07-05 QFA167 - Jul 5, 02:30 UTCJul 5, 02:45 UTC15m
2026-07-04 QFA167 - Jul 4, 23:40 UTCJul 5, 00:15 UTC35m
2026-07-04 QFA152 AKL → MEL Jul 4, 18:40 UTCJul 4, 22:20 UTC3h 40m
2026-07-04 QFA155 MEL → AKL Jul 4, 03:55 UTCJul 4, 07:00 UTC3h 5m
2026-07-04 QFA678 ADL → MEL Jul 4, 00:55 UTCJul 4, 02:00 UTC1h 5m
2026-07-03 QFA675 MEL → ADL Jul 3, 22:45 UTCJul 3, 23:55 UTC1h 10m
2026-07-03 QFA770 PER → MEL Jul 3, 09:10 UTCJul 3, 12:25 UTC3h 15m
2026-07-03 QFA767 MEL → PER Jul 3, 03:25 UTCJul 3, 07:05 UTC3h 40m
2026-07-02 QFA760 PER → MEL Jul 2, 22:40 UTCJul 3, 01:55 UTC3h 15m
2026-07-02 QFA891 ADL → PER Jul 2, 09:45 UTCJul 2, 12:40 UTC2h 55m
2026-07-02 QFA691 MEL → ADL Jul 2, 07:40 UTCJul 2, 08:50 UTC1h 10m
2026-07-02 QFA686 ADL → MEL Jul 2, 05:40 UTCJul 2, 06:45 UTC1h 5m
2026-07-02 QFA683 MEL → ADL Jul 2, 03:25 UTCJul 2, 04:40 UTC1h 15m
2026-07-01 QFA760 PER → MEL Jul 1, 22:35 UTCJul 2, 01:50 UTC3h 15m
2026-07-01 QFA849 - Jul 1, 10:45 UTCJul 1, 11:25 UTC40m
2026-07-01 QFA848 - Jul 1, 03:25 UTCJul 1, 03:55 UTC30m
2026-06-30 QFA1216 PER → PER Jun 30, 21:20 UTCJul 1, 01:55 UTC4h 35m
2026-06-30 QFA941 - Jun 30, 12:40 UTCJun 30, 15:55 UTC3h 15m

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?
Yes. Mode-S 7C6DE3 is currently airborne.
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 QFA136, QFA857, QFA856, QFA167, QFA137.