Apparatus

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sensors Mode-S transponder

7C8071

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ZNN · BOEING 787-9 Dreamliner · operated by QANTAS AIRWAYS LIMITED

Hex
7C8071
Octal
37100161
Decimal
8,159,345
Country
AU
Tail
VH-ZNN
Type
B789
No current signal · last broadcast 9h ago
Flights observed
143
Distinct callsigns
20
Country
AU
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 7C8071.

Country allocation

The ICAO 24-bit address 7C8071 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
QFA219 Qantas 16 2026-05-25
QFA3 - 13 2026-07-12
QFA4 - 12 2026-07-13
QFA34 Qantas 11 2026-05-15
QFA10 Qantas 11 2026-05-24
QFA6 - 9 2026-07-05
QFA5 - 9 2026-07-03
QFA33 Qantas 7 2026-04-16
QFA27 - 6 2026-07-09
QFA255 - 6 2026-07-14
QFA28 - 5 2026-07-10
QFA94 Qantas 4 2026-06-02
QFA93 Qantas 4 2026-05-28
QFA73 - 4 2026-07-10
QFA76 - 3 2026-06-30
QFA75 - 3 2026-06-29
QFA74 - 3 2026-07-11
QFA21 Qantas 3 2026-06-03
QFA647 Qantas 2 2026-04-22
QFA6009 Qantas 2 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA255 - Jul 14, 04:25 UTCJul 14, 04:55 UTC30m
2026-07-13 QFA4 - Jul 13, 18:50 UTCJul 13, 22:05 UTC3h 15m
2026-07-13 QFA4 JFK → AKL Jul 13, 00:05 UTCJul 13, 16:25 UTC16h 20m
2026-07-12 QFA3 - Jul 12, 05:50 UTCJul 12, 21:05 UTC15h 15m
2026-07-12 QFA3 - Jul 12, 02:05 UTCJul 12, 02:25 UTC20m
2026-07-12 QFA3 - Jul 12, 00:01 UTCJul 12, 00:30 UTC30m
2026-07-11 QFA74 SFO → SYD Jul 11, 06:20 UTCJul 11, 20:20 UTC14h 0m
2026-07-10 QFA73 - Jul 10, 11:25 UTCJul 11, 00:20 UTC12h 55m
2026-07-10 QFA28 - Jul 10, 04:35 UTCJul 10, 07:35 UTC3h 0m
2026-07-09 QFA28 - Jul 9, 17:35 UTCJul 9, 17:45 UTC10m
2026-07-09 QFA27 - Jul 9, 14:25 UTCJul 9, 14:40 UTC15m
2026-07-09 QFA27 - Jul 9, 02:45 UTCJul 9, 05:20 UTC2h 35m
2026-07-08 QFA4 - Jul 8, 19:05 UTCJul 8, 22:30 UTC3h 25m
2026-07-07 QFA4 JFK → AKL Jul 7, 23:50 UTCJul 8, 16:05 UTC16h 15m
2026-07-07 QFA3 - Jul 7, 04:50 UTCJul 7, 20:05 UTC15h 15m
2026-07-06 QFA3 SYD → AKL Jul 6, 23:35 UTCJul 7, 02:00 UTC2h 25m
2026-07-06 QFA74 SFO → SYD Jul 6, 05:55 UTCJul 6, 20:05 UTC14h 10m
2026-07-05 QFA73 - Jul 5, 11:40 UTCJul 6, 00:30 UTC12h 50m
2026-07-05 QFA6 PER → SYD Jul 5, 03:00 UTCJul 5, 06:40 UTC3h 40m
2026-07-04 QFA6 - Jul 4, 09:20 UTCJul 5, 00:10 UTC14h 50m
2026-07-03 QFA5 PER → FCO Jul 3, 11:40 UTCJul 4, 03:15 UTC15h 35m
2026-07-03 QFA5 SYD → PER Jul 3, 04:25 UTCJul 3, 08:40 UTC4h 15m
2026-07-02 QFA4 - Jul 2, 19:05 UTCJul 2, 22:15 UTC3h 10m
2026-07-01 QFA4 JFK → AKL Jul 1, 23:55 UTCJul 2, 16:10 UTC16h 15m
2026-07-01 QFA3 - Jul 1, 04:40 UTCJul 1, 20:05 UTC15h 25m
2026-07-01 QFA3 - Jul 1, 00:05 UTCJul 1, 02:30 UTC2h 25m
2026-06-30 QFA76 - Jun 30, 05:55 UTCJun 30, 20:35 UTC14h 40m
2026-06-29 QFA75 SYD → YVR Jun 29, 10:55 UTCJun 30, 00:25 UTC13h 30m
2026-06-29 QFA6 PER → SYD Jun 29, 03:05 UTCJun 29, 06:34 UTC3h 30m
2026-06-28 QFA6 - Jun 28, 09:15 UTCJun 29, 00:34 UTC15h 20m
2026-06-27 QFA5 SYD → FRA Jun 27, 11:44 UTCJun 28, 03:05 UTC15h 20m
2026-06-27 QFA5 SYD → FRA Jun 27, 04:19 UTCJun 27, 08:39 UTC4h 20m
2026-06-26 QFA6 PER → SYD Jun 26, 03:00 UTCJun 26, 06:35 UTC3h 35m
2026-06-25 QFA6 - Jun 25, 09:14 UTCJun 26, 00:20 UTC15h 5m
2026-06-24 QFA5 SYD → FRA Jun 24, 11:50 UTCJun 25, 03:10 UTC15h 20m
2026-06-23 QFA6 - Jun 23, 09:20 UTCJun 24, 00:40 UTC15h 20m
2026-06-22 QFA5 SYD → FRA Jun 22, 11:50 UTCJun 23, 03:20 UTC15h 30m
2026-06-22 QFA5 SYD → FRA Jun 22, 04:24 UTCJun 22, 09:04 UTC4h 40m
2026-06-21 QFA6010 MEL → SYD Jun 21, 15:25 UTCJun 21, 23:44 UTC8h 20m
2026-06-08 QFA6009 SYD → MEL Jun 8, 20:05 UTCJun 8, 20:30 UTC25m
2026-06-08 QFA6009 SYD → MEL Jun 8, 11:40 UTCJun 8, 19:20 UTC7h 40m
2026-06-07 QFA76 YVR → SYD Jun 7, 05:35 UTCJun 7, 20:10 UTC14h 35m
2026-06-06 QFA75 SYD → YVR Jun 6, 10:50 UTCJun 7, 00:34 UTC13h 45m
2026-06-05 QFA28 SCL → SYD Jun 5, 18:30 UTCJun 6, 07:55 UTC13h 25m
2026-06-05 QFA27 SYD → SCL Jun 5, 14:25 UTCJun 5, 14:35 UTC10m
2026-06-05 QFA27 SYD → SCL Jun 5, 02:50 UTCJun 5, 05:30 UTC2h 40m
2026-06-04 QFA6102 OOL → MEL Jun 4, 23:40 UTCJun 5, 00:45 UTC1h 5m
2026-06-04 QFA22 NRT → SYD Jun 4, 04:00 UTCJun 4, 21:05 UTC17h 5m
2026-06-03 QFA21 SYD → NRT Jun 3, 09:05 UTCJun 4, 00:00 UTC14h 55m
2026-06-03 QFA21 SYD → NRT Jun 3, 08:35 UTCJun 3, 09:00 UTC25m

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

Mode-S 7C8071 frequently asked

What is Mode-S code 7C8071?
7C8071 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZNN.
Where is Mode-S 7C8071 registered?
Mode-S code 7C8071 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C8071 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C8071, octal 37100161, decimal 8,159,345.
What flights does 7C8071 operate?
Mode-S 7C8071 has broadcast 20 distinct callsigns, including QFA219, QFA3, QFA4, QFA34, QFA10.