Apparatus

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sensors Mode-S transponder

7C6DD9

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DD9
Octal
37066731
Decimal
8,154,585
Country
AU
Tail
VH-VZF
Type
B738
Broadcasting now · callsign QFA614 · 13,325 ft
Flights observed
321
Distinct callsigns
20
Country
AU
Last broadcast
1h ago

Current position

7C6DD9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C6DD9 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
QFA166 Qantas 6 2026-06-14
QFA165 Qantas 5 2026-06-13
QFA134 Qantas 5 2026-04-16
QFA942 Qantas 4 2026-07-06
QFA883 - 4 2026-07-05
QFA644 - 4 2026-07-06
QFA151 Qantas 4 2026-06-24
QFA145 - 4 2026-06-28
QFA776 - 3 2026-07-10
QFA761 - 3 2026-07-10
QFA651 - 3 2026-07-06
QFA642 - 3 2026-06-29
QFA637 Qantas 3 2026-05-15
QFA595 - 3 2026-06-30
QFA594 - 3 2026-06-30
QFA57 Qantas 3 2026-05-25
QFA500 Qantas 3 2026-05-22
QFA461 Qantas 3 2026-04-30
QFA176 Qantas 3 2026-04-13
QFA174 Qantas 3 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 QFA614 - Jul 15, 01:40 UTCJul 15, 02:15 UTC35m
2026-07-14 QFA421 SYD → MEL Jul 14, 22:40 UTCJul 14, 23:45 UTC1h 4m
2026-07-14 QFA654 PER → SYD Jul 14, 16:00 UTCJul 14, 20:10 UTC4h 10m
2026-07-14 QFA849 - Jul 14, 10:50 UTCJul 14, 11:40 UTC50m
2026-07-14 QFA848 - Jul 14, 03:25 UTCJul 14, 03:55 UTC30m
2026-07-13 QFA1388 PER → PER Jul 13, 21:50 UTCJul 14, 01:40 UTC3h 50m
2026-07-13 QFA941 BNE → PER Jul 13, 08:30 UTCJul 13, 13:30 UTC5h 0m
2026-07-13 QFA864 BNE → BNE Jul 13, 02:55 UTCJul 13, 07:15 UTC4h 20m
2026-07-12 QFA750 BNE → BNE Jul 12, 20:50 UTCJul 13, 01:05 UTC4h 15m
2026-07-12 QFA827 - Jul 12, 18:30 UTCJul 12, 19:30 UTC1h 0m
2026-07-12 QFA826 - Jul 12, 10:40 UTCJul 12, 11:10 UTC30m
2026-07-12 QFA58 BNE → BNE Jul 12, 00:35 UTCJul 12, 07:20 UTC6h 45m
2026-07-11 QFA936 PER → BNE Jul 11, 02:50 UTCJul 11, 06:35 UTC3h 45m
2026-07-10 QFA761 MEL → PER Jul 10, 20:20 UTCJul 11, 00:05 UTC3h 45m
2026-07-10 QFA776 PER → MEL Jul 10, 15:55 UTCJul 10, 19:05 UTC3h 10m
2026-07-10 QFA857 - Jul 10, 10:10 UTCJul 10, 14:30 UTC4h 20m
2026-07-10 QFA856 - Jul 10, 05:40 UTCJul 10, 09:05 UTC3h 25m
2026-07-10 QFA765 MEL → PER Jul 10, 00:20 UTCJul 10, 04:15 UTC3h 55m
2026-07-09 QFA401 - Jul 9, 20:20 UTCJul 9, 21:30 UTC1h 10m
2026-07-09 QFA746 - Jul 9, 10:35 UTCJul 9, 12:10 UTC1h 35m
2026-07-09 QFA691 MEL → ADL Jul 9, 07:00 UTCJul 9, 08:00 UTC1h 0m
2026-07-09 QFA686 - Jul 9, 04:55 UTCJul 9, 05:55 UTC1h 0m
2026-07-09 QFA884 PER → ADL Jul 9, 01:10 UTCJul 9, 03:35 UTC2h 25m
2026-07-08 QFA761 MEL → PER Jul 8, 20:05 UTCJul 8, 23:50 UTC3h 45m
2026-07-08 QFA694 ADL → MEL Jul 8, 09:05 UTCJul 8, 10:05 UTC1h 0m
2026-07-08 QFA691 MEL → ADL Jul 8, 07:15 UTCJul 8, 08:10 UTC55m
2026-07-08 QFA686 ADL → MEL Jul 8, 05:20 UTCJul 8, 06:10 UTC50m
2026-07-08 QFA683 MEL → ADL Jul 8, 03:05 UTCJul 8, 04:15 UTC1h 10m
2026-07-08 QFA435 SYD → MEL Jul 8, 00:45 UTCJul 8, 01:55 UTC1h 10m
2026-07-07 QFA509 BNE → SYD Jul 7, 22:05 UTCJul 7, 23:20 UTC1h 15m
2026-07-07 QFA126 - Jul 7, 04:10 UTCJul 7, 07:20 UTC3h 10m
2026-07-06 QFA119 BNE → AKL Jul 6, 22:35 UTCJul 7, 01:20 UTC2h 45m
2026-07-06 QFA942 PER → BNE Jul 6, 15:00 UTCJul 6, 18:55 UTC3h 55m
2026-07-06 QFA651 SYD → PER Jul 6, 06:25 UTCJul 6, 10:55 UTC4h 30m
2026-07-06 QFA644 - Jul 6, 03:20 UTCJul 6, 05:05 UTC1h 45m
2026-07-06 QFA644 - Jul 6, 01:15 UTCJul 6, 01:45 UTC30m
2026-07-05 QFA883 ADL → PER Jul 5, 20:45 UTCJul 5, 23:40 UTC2h 55m
2026-07-05 QFA743 SYD → ADL Jul 5, 08:40 UTCJul 5, 10:20 UTC1h 40m
2026-07-05 QFA180 SYD → SYD Jul 5, 00:10 UTCJul 5, 06:10 UTC6h 0m
2026-07-04 QFA124 AKL → BNE Jul 4, 19:15 UTCJul 4, 21:55 UTC2h 40m
2026-07-04 QFA123 - Jul 4, 08:25 UTCJul 4, 09:05 UTC40m
2026-07-04 QFA123 - Jul 4, 06:25 UTCJul 4, 06:55 UTC30m
2026-07-04 QFA192 - Jul 4, 04:05 UTCJul 4, 04:50 UTC45m
2026-07-04 QFA191 - Jul 4, 00:20 UTCJul 4, 00:40 UTC20m
2026-07-03 QFA191 - Jul 3, 22:05 UTCJul 3, 22:35 UTC30m
2026-07-02 QFA102 - Jul 2, 23:05 UTCJul 3, 08:50 UTC9h 45m
2026-07-02 QFA162 - Jul 2, 20:30 UTCJul 2, 21:15 UTC45m
2026-07-02 QFA162 - Jul 2, 18:05 UTCJul 2, 18:15 UTC10m
2026-07-02 QFA163 - Jul 2, 12:05 UTCJul 2, 12:15 UTC10m
2026-07-02 QFA163 - Jul 2, 09:40 UTCJul 2, 10:05 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-VZF page for operator, model, and routing details .

Mode-S 7C6DD9 frequently asked

What is Mode-S code 7C6DD9?
7C6DD9 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZF.
Where is Mode-S 7C6DD9 registered?
Mode-S code 7C6DD9 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DD9 broadcasting right now?
Yes. Mode-S 7C6DD9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DD9, octal 37066731, decimal 8,154,585.
What flights does 7C6DD9 operate?
Mode-S 7C6DD9 has broadcast 20 distinct callsigns, including QFA166, QFA165, QFA134, QFA942, QFA883.