Apparatus

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sensors Mode-S transponder

7C5321

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-QPF · AIRBUS A-330-300 · operated by QANTAS AIRWAYS LIMITED

Hex
7C5321
Octal
37051441
Decimal
8,147,745
Country
AU
Tail
VH-QPF
Type
A333
No current signal · last broadcast 11h ago
Flights observed
172
Distinct callsigns
20
Country
AU
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 7C5321.

Country allocation

The ICAO 24-bit address 7C5321 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
QFA29 - 19 2026-07-13
QFA62 - 18 2026-07-11
QFA79 - 16 2026-07-04
QFA61 - 16 2026-07-12
QFA80 - 15 2026-07-12
QFA30 Qantas 12 2026-06-29
QFA128 - 10 2026-07-13
QFA127 - 7 2026-06-18
QFA51 - 6 2026-07-07
QFA52 - 5 2026-07-07
QFA23 - 5 2026-06-26
QFA36 - 4 2026-07-03
QFA26 - 4 2026-06-16
QFA25 Qantas 4 2026-06-16
QFA24 Qantas 4 2026-06-26
QFA20 Qantas 4 2026-06-25
QFA19 - 4 2026-06-25
QFA35 - 3 2026-07-03
QFA98 - 2 2026-07-06
QFA97 - 2 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA043 - Jul 14, 06:35 UTCJul 14, 07:10 UTC35m
2026-07-13 QFA128 - Jul 13, 13:20 UTCJul 13, 20:50 UTC7h 30m
2026-07-13 QFA128 - Jul 13, 12:05 UTCJul 13, 12:25 UTC20m
2026-07-13 QFA29 - Jul 13, 09:20 UTCJul 13, 09:55 UTC35m
2026-07-13 QFA29 - Jul 13, 00:50 UTCJul 13, 08:30 UTC7h 40m
2026-07-12 QFA80 NRT → MEL Jul 12, 12:10 UTCJul 12, 21:35 UTC9h 25m
2026-07-12 QFA61 BNE → NRT Jul 12, 01:00 UTCJul 12, 09:55 UTC8h 55m
2026-07-11 QFA62 NRT → BNE Jul 11, 13:00 UTCJul 11, 21:15 UTC8h 15m
2026-07-11 QFA61 BNE → NRT Jul 11, 01:00 UTCJul 11, 09:55 UTC8h 55m
2026-07-10 QFA62 NRT → BNE Jul 10, 13:10 UTCJul 10, 21:30 UTC8h 20m
2026-07-10 QFA61 - Jul 10, 01:00 UTCJul 10, 09:45 UTC8h 45m
2026-07-07 QFA52 - Jul 7, 18:55 UTCJul 7, 19:20 UTC25m
2026-07-07 QFA52 - Jul 7, 12:50 UTCJul 7, 13:00 UTC10m
2026-07-07 QFA51 - Jul 7, 09:35 UTCJul 7, 09:50 UTC15m
2026-07-07 QFA51 - Jul 7, 01:45 UTCJul 7, 02:15 UTC30m
2026-07-06 QFA98 - Jul 6, 15:05 UTCJul 6, 21:45 UTC6h 40m
2026-07-06 QFA97 BNE → MNL Jul 6, 04:50 UTCJul 6, 12:40 UTC7h 50m
2026-07-05 QFA62 NRT → BNE Jul 5, 13:05 UTCJul 5, 21:35 UTC8h 30m
2026-07-05 QFA61 BNE → NRT Jul 5, 01:15 UTCJul 5, 10:15 UTC9h 0m
2026-07-04 QFA62 NRT → BNE Jul 4, 13:00 UTCJul 4, 21:10 UTC8h 10m
2026-07-04 QFA79 MEL → NRT Jul 4, 00:00 UTCJul 4, 10:00 UTC10h 0m
2026-07-03 QFA36 - Jul 3, 13:00 UTCJul 3, 19:40 UTC6h 40m
2026-07-03 QFA35 - Jul 3, 10:50 UTCJul 3, 11:00 UTC10m
2026-07-03 QFA35 - Jul 3, 03:00 UTCJul 3, 04:20 UTC1h 20m
2026-07-02 QFA80 NRT → MEL Jul 2, 13:40 UTCJul 2, 23:15 UTC9h 35m
2026-07-02 QFA79 - Jul 2, 03:40 UTCJul 2, 11:55 UTC8h 15m
2026-07-02 QFA79 MEL → BNE Jul 2, 00:25 UTCJul 2, 02:15 UTC1h 50m
2026-07-01 QFA80 NRT → MEL Jul 1, 11:50 UTCJul 1, 21:05 UTC9h 15m
2026-07-01 QFA61 BNE → NRT Jul 1, 01:05 UTCJul 1, 09:45 UTC8h 40m
2026-06-30 QFA62 NRT → BNE Jun 30, 13:10 UTCJun 30, 21:25 UTC8h 15m
2026-06-30 QFA79 MEL → NRT Jun 30, 00:39 UTCJun 30, 10:25 UTC9h 46m
2026-06-29 QFA30 HKG → MEL Jun 29, 14:39 UTCJun 29, 22:10 UTC7h 30m
2026-06-29 QFA30 HKG → MEL Jun 29, 13:30 UTCJun 29, 13:49 UTC20m
2026-06-29 QFA29 MEL → HKG Jun 29, 01:14 UTCJun 29, 10:24 UTC9h 10m
2026-06-28 QFA36 - Jun 28, 12:29 UTCJun 28, 19:14 UTC6h 45m
2026-06-28 QFA51 - Jun 28, 01:40 UTCJun 28, 05:24 UTC3h 45m
2026-06-27 QFA98 MNL → BNE Jun 27, 15:34 UTCJun 27, 22:15 UTC6h 40m
2026-06-27 QFA97 - Jun 27, 05:29 UTCJun 27, 13:09 UTC7h 40m
2026-06-27 QFA518 SYD → BNE Jun 27, 01:35 UTCJun 27, 02:39 UTC1h 5m
2026-06-26 QFA24 BKK → SYD Jun 26, 12:29 UTCJun 26, 21:15 UTC8h 45m
2026-06-26 QFA23 SYD → BKK Jun 26, 00:50 UTCJun 26, 10:25 UTC9h 35m
2026-06-25 QFA20 MNL → SYD Jun 25, 13:29 UTCJun 25, 20:45 UTC7h 15m
2026-06-25 QFA19 SYD → MNL Jun 25, 03:04 UTCJun 25, 11:15 UTC8h 10m
2026-06-24 QFA60 HND → SYD Jun 24, 14:34 UTCJun 24, 23:24 UTC8h 50m
2026-06-24 QFA59 SYD → HND Jun 24, 02:45 UTCJun 24, 12:20 UTC9h 35m
2026-06-22 QFA042 - Jun 22, 13:59 UTCJun 22, 20:10 UTC6h 10m
2026-06-22 QFA041 - Jun 22, 04:34 UTCJun 22, 12:05 UTC7h 30m
2026-06-21 QFA128 HKG → SYD Jun 21, 11:49 UTCJun 21, 20:29 UTC8h 40m
2026-06-21 QFA29 - Jun 21, 09:15 UTCJun 21, 09:35 UTC20m
2026-06-21 QFA29 - Jun 21, 00:34 UTCJun 21, 08:20 UTC7h 45m

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

Mode-S 7C5321 frequently asked

What is Mode-S code 7C5321?
7C5321 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-QPF.
Where is Mode-S 7C5321 registered?
Mode-S code 7C5321 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C5321 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C5321, octal 37051441, decimal 8,147,745.
What flights does 7C5321 operate?
Mode-S 7C5321 has broadcast 20 distinct callsigns, including QFA29, QFA62, QFA79, QFA61, QFA80.