Apparatus

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sensors Mode-S transponder

7C806C

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C806C
Octal
37100154
Decimal
8,159,340
Country
AU
Tail
VH-ZNI
Type
B789
No current signal · last broadcast 4h ago
Flights observed
151
Distinct callsigns
20
Country
AU
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7C806C.

Country allocation

The ICAO 24-bit address 7C806C 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
QFA255 - 22 2026-07-08
QFA3 - 11 2026-07-11
QFA21 - 11 2026-06-22
QFA4 - 10 2026-07-12
QFA22 - 10 2026-06-23
QFA219 - 10 2026-06-17
QFA28 - 9 2026-07-03
QFA256 - 9 2026-07-10
QFA34 Qantas 8 2026-05-13
QFA27 - 8 2026-07-03
QFA76 - 5 2026-07-05
QFA75 - 5 2026-07-04
QFA5 - 5 2026-07-13
QFA10 - 5 2026-06-16
QFA94 - 4 2026-07-02
QFA93 - 3 2026-07-01
QFA6 - 3 2026-07-14
QFA74 Qantas 2 2026-06-03
QFA73 Qantas 2 2026-06-02
QFA6102 - 2 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA6 - Jul 14, 09:20 UTCJul 14, 12:35 UTC3h 15m
2026-07-13 QFA5 - Jul 13, 19:00 UTCJul 14, 04:20 UTC9h 20m
2026-07-13 QFA5 - Jul 13, 11:50 UTCJul 13, 12:20 UTC30m
2026-07-13 QFA5 SYD → PER Jul 13, 04:20 UTCJul 13, 08:40 UTC4h 20m
2026-07-12 QFA4 - Jul 12, 19:45 UTCJul 12, 22:45 UTC3h 0m
2026-07-12 QFA4 - Jul 12, 00:45 UTCJul 12, 17:30 UTC16h 45m
2026-07-11 QFA3 - Jul 11, 04:40 UTCJul 11, 20:10 UTC15h 30m
2026-07-10 QFA3 - Jul 10, 23:45 UTCJul 11, 02:15 UTC2h 30m
2026-07-10 QFA256 - Jul 10, 04:50 UTCJul 10, 05:40 UTC50m
2026-07-09 QFA256 - Jul 9, 07:25 UTCJul 9, 19:30 UTC12h 5m
2026-07-08 QFA255 - Jul 8, 14:35 UTCJul 9, 03:35 UTC13h 0m
2026-07-08 QFA255 - Jul 8, 12:10 UTCJul 8, 12:20 UTC10m
2026-07-08 QFA255 - Jul 8, 04:25 UTCJul 8, 05:00 UTC35m
2026-07-07 QFA4 - Jul 7, 19:10 UTCJul 7, 22:20 UTC3h 10m
2026-07-07 QFA4 JFK → AKL Jul 7, 00:15 UTCJul 7, 16:25 UTC16h 10m
2026-07-06 QFA3 - Jul 6, 04:35 UTCJul 6, 19:50 UTC15h 15m
2026-07-05 QFA3 SYD → AKL Jul 5, 23:35 UTCJul 6, 02:05 UTC2h 30m
2026-07-05 QFA76 YVR → SYD Jul 5, 05:45 UTCJul 5, 20:15 UTC14h 30m
2026-07-04 QFA75 SYD → YVR Jul 4, 10:55 UTCJul 5, 00:15 UTC13h 20m
2026-07-03 QFA28 - Jul 3, 17:35 UTCJul 4, 07:20 UTC13h 45m
2026-07-03 QFA27 - Jul 3, 14:25 UTCJul 3, 14:40 UTC15m
2026-07-03 QFA27 - Jul 3, 02:55 UTCJul 3, 03:20 UTC25m
2026-07-02 QFA6102 MEL → SYD Jul 2, 23:25 UTCJul 3, 00:25 UTC1h 0m
2026-07-02 QFA94 - Jul 2, 05:15 UTCJul 2, 20:10 UTC14h 55m
2026-07-01 QFA93 - Jul 1, 00:05 UTCJul 1, 13:30 UTC13h 25m
2026-06-30 QFA94 - Jun 30, 05:05 UTCJun 30, 20:10 UTC15h 5m
2026-06-26 QFA93 - Jun 26, 00:30 UTCJun 26, 14:15 UTC13h 45m
2026-06-25 QFA94 - Jun 25, 05:00 UTCJun 25, 19:49 UTC14h 50m
2026-06-24 QFA93 MEL → LAX Jun 24, 00:05 UTCJun 24, 13:20 UTC13h 15m
2026-06-23 QFA22 DFW → MEL Jun 23, 02:24 UTCJun 23, 19:10 UTC16h 45m
2026-06-22 QFA21 MEL → DFW Jun 22, 03:54 UTCJun 22, 19:14 UTC15h 20m
2026-06-21 QFA22 - Jun 21, 01:45 UTCJun 21, 16:59 UTC15h 15m
2026-06-20 QFA21 MEL → DFW Jun 20, 04:34 UTCJun 20, 20:00 UTC15h 25m
2026-06-20 QFA6001 SYD → EZE Jun 20, 00:59 UTCJun 20, 02:19 UTC1h 20m
2026-06-19 QFA256 - Jun 19, 04:29 UTCJun 19, 05:24 UTC55m
2026-06-18 QFA256 - Jun 18, 07:30 UTCJun 18, 19:30 UTC12h 0m
2026-06-17 QFA255 SYD → SIN Jun 17, 14:30 UTCJun 18, 03:35 UTC13h 5m
2026-06-17 QFA219 - Jun 17, 06:20 UTCJun 17, 10:50 UTC4h 30m
2026-06-16 QFA10 - Jun 16, 11:10 UTCJun 17, 03:20 UTC16h 11m
2026-06-15 QFA219 - Jun 15, 14:10 UTCJun 16, 03:35 UTC13h 25m
2026-06-15 QFA255 SYD → SIN Jun 15, 11:45 UTCJun 15, 12:00 UTC15m
2026-06-15 QFA255 SYD → SIN Jun 15, 04:04 UTCJun 15, 08:04 UTC4h 0m
2026-06-14 QFA4 - Jun 14, 18:50 UTCJun 14, 21:55 UTC3h 5m
2026-06-14 QFA4 JFK → AKL Jun 14, 00:00 UTCJun 14, 16:40 UTC16h 40m
2026-06-13 QFA3 - Jun 13, 04:40 UTCJun 13, 19:50 UTC15h 10m
2026-06-12 QFA3 SYD → AKL Jun 12, 23:50 UTCJun 13, 02:35 UTC2h 45m
2026-06-11 QFA256 CDG → SIN Jun 11, 22:40 UTCJun 12, 05:35 UTC6h 56m
2026-06-11 QFA256 CDG → SIN Jun 11, 07:35 UTCJun 11, 19:30 UTC11h 55m
2026-06-10 QFA255 SYD → SIN Jun 10, 14:30 UTCJun 11, 03:45 UTC13h 15m
2026-06-10 QFA219 PER → SIN Jun 10, 06:20 UTCJun 10, 09:55 UTC3h 35m

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

Mode-S 7C806C frequently asked

What is Mode-S code 7C806C?
7C806C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZNI.
Where is Mode-S 7C806C registered?
Mode-S code 7C806C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C806C broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C806C, octal 37100154, decimal 8,159,340.
What flights does 7C806C operate?
Mode-S 7C806C has broadcast 20 distinct callsigns, including QFA255, QFA3, QFA21, QFA4, QFA22.