Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C6DDA

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DDA
Octal
37066732
Decimal
8,154,586
Country
AU
Tail
VH-VZG
Type
B738
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
258
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 7C6DDA.

Country allocation

The ICAO 24-bit address 7C6DDA 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
QFA138 - 8 2026-07-14
QFA133 - 6 2026-07-13
QFA147 - 5 2026-07-04
QFA125 - 5 2026-04-14
QFA122 - 5 2026-07-02
QFA121 - 5 2026-07-02
QFA499 Qantas 4 2026-07-26
QFA185 Qantas 4 2026-07-21
QFA143 - 4 2026-07-15
QFA140 - 4 2026-07-04
QFA139 - 4 2026-07-06
QFA137 - 4 2026-06-19
QFA120 - 4 2026-06-30
QFA937 Qantas 3 2026-07-19
QFA857 - 3 2026-07-22
QFA770 - 3 2026-07-09
QFA6036 Qantas 3 2026-05-18
QFA6033 - 3 2026-04-15
QFA578 - 3 2026-07-10
QFA170 - 3 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA420 MEL → SYD Jul 26, 22:25 UTCJul 26, 22:30 UTC5m
2026-07-26 QFA499 SYD → MEL Jul 26, 12:10 UTCJul 26, 13:15 UTC1h 5m
2026-07-26 QFA650 PER → BNE Jul 26, 07:00 UTCJul 26, 10:55 UTC3h 55m
2026-07-26 QFA645 SYD → PER Jul 26, 01:30 UTCJul 26, 05:50 UTC4h 20m
2026-07-25 QFA730 ADL → SYD Jul 25, 20:35 UTCJul 25, 22:05 UTC1h 30m
2026-07-25 QFA888 PER → ADL Jul 25, 09:05 UTCJul 25, 11:45 UTC2h 40m
2026-07-25 QFA889 ADL → PER Jul 25, 04:55 UTCJul 25, 07:50 UTC2h 55m
2026-07-25 QFA884 PER → ADL Jul 25, 01:10 UTCJul 25, 03:55 UTC2h 45m
2026-07-24 QFA653 MEL → PER Jul 24, 09:20 UTCJul 24, 13:35 UTC4h 15m
2026-07-24 QFA464 MEL → SYD Jul 24, 06:35 UTCJul 24, 07:45 UTC1h 10m
2026-07-24 QFA682 ADL → MEL Jul 24, 04:00 UTCJul 24, 05:05 UTC1h 5m
2026-07-24 QFA679 MEL → ADL Jul 24, 02:05 UTCJul 24, 03:00 UTC55m
2026-07-23 QFA837 DRW → MEL Jul 23, 23:40 UTCJul 24, 00:15 UTC35m
2026-07-23 QFA47 SYD → WLG Jul 23, 11:25 UTCJul 23, 11:35 UTC10m
2026-07-23 QFA848 MEL → CBR Jul 23, 02:45 UTCJul 23, 03:10 UTC25m
2026-07-22 QFA1381 CKW → PER Jul 22, 21:05 UTCJul 23, 01:15 UTC4h 10m
2026-07-22 QFA857 - Jul 22, 10:20 UTCJul 22, 14:15 UTC3h 55m
2026-07-21 QFA935 BNE → PER Jul 21, 22:50 UTCJul 22, 04:20 UTC5h 30m
2026-07-21 QFA500 SYD → BNE Jul 21, 20:10 UTCJul 21, 21:20 UTC1h 10m
2026-07-21 QFA559 BNE → SYD Jul 21, 11:05 UTCJul 21, 12:20 UTC1h 15m
2026-07-21 QFA186 ZQN → BNE Jul 21, 05:25 UTCJul 21, 08:45 UTC3h 20m
2026-07-21 QFA185 BNE → ZQN Jul 21, 03:45 UTCJul 21, 03:55 UTC10m
2026-07-21 QFA185 BNE → ZQN Jul 21, 01:00 UTCJul 21, 01:45 UTC45m
2026-07-20 QFA558 SYD → BNE Jul 20, 12:05 UTCJul 20, 13:10 UTC1h 5m
2026-07-20 QFA478 MEL → SYD Jul 20, 08:35 UTCJul 20, 09:40 UTC1h 5m
2026-07-20 QFA764 ADL → SYD Jul 20, 04:25 UTCJul 20, 07:30 UTC3h 5m
2026-07-20 QFA1201 KGI → PER Jul 20, 02:10 UTCJul 20, 03:10 UTC1h 0m
2026-07-19 QFA1200 PER → KGI Jul 19, 23:50 UTCJul 20, 01:15 UTC1h 25m
2026-07-19 QFA937 BNE → PER Jul 19, 07:45 UTCJul 19, 08:20 UTC35m
2026-07-19 QFA937 BNE → PER Jul 19, 03:35 UTCJul 19, 04:30 UTC55m
2026-07-18 QFA932 SYD → CNS Jul 18, 22:05 UTCJul 19, 01:50 UTC3h 45m
2026-07-18 QFA655 CNS → BNE Jul 18, 10:35 UTCJul 18, 15:15 UTC4h 40m
2026-07-18 QFA841 - Jul 18, 06:40 UTCJul 18, 07:45 UTC1h 5m
2026-07-17 QFA840 SYD → DRW Jul 17, 22:25 UTCJul 17, 23:14 UTC50m
2026-07-17 QFA484 MEL → SYD Jul 17, 09:10 UTCJul 17, 10:25 UTC1h 15m
2026-07-17 QFA625 BNE → MEL Jul 17, 03:39 UTCJul 17, 05:39 UTC2h 0m
2026-07-17 QFA612 MEL → BNE Jul 17, 00:40 UTCJul 17, 02:30 UTC1h 50m
2026-07-16 QFA776 PER → MEL Jul 16, 15:49 UTCJul 16, 18:44 UTC2h 55m
2026-07-16 QFA857 - Jul 16, 10:15 UTCJul 16, 14:20 UTC4h 5m
2026-07-16 QFA856 - Jul 16, 05:40 UTCJul 16, 09:10 UTC3h 30m
2026-07-16 QFA765 MEL → PER Jul 16, 00:30 UTCJul 16, 04:20 UTC3h 50m
2026-07-15 QFA168 - Jul 15, 18:15 UTCJul 15, 21:25 UTC3h 10m
2026-07-15 QFA169 - Jul 15, 09:05 UTCJul 15, 12:15 UTC3h 10m
2026-07-15 QFA156 - Jul 15, 03:45 UTCJul 15, 07:15 UTC3h 30m
2026-07-15 QFA143 - Jul 15, 02:00 UTCJul 15, 02:15 UTC15m
2026-07-14 QFA143 - Jul 14, 23:35 UTCJul 15, 00:10 UTC35m
2026-07-14 QFA138 - Jul 14, 18:10 UTCJul 14, 21:15 UTC3h 5m
2026-07-14 QFA135 - Jul 14, 11:55 UTCJul 14, 12:15 UTC20m
2026-07-14 QFA135 - Jul 14, 09:15 UTCJul 14, 10:00 UTC45m
2026-07-14 QFA134 CHC → BNE Jul 14, 03:50 UTCJul 14, 07:35 UTC3h 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-VZG page for operator, model, and routing details .

Mode-S 7C6DDA frequently asked

What is Mode-S code 7C6DDA?
7C6DDA is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZG.
Where is Mode-S 7C6DDA registered?
Mode-S code 7C6DDA is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DDA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DDA, octal 37066732, decimal 8,154,586.
What flights does 7C6DDA operate?
Mode-S 7C6DDA has broadcast 20 distinct callsigns, including QFA138, QFA133, QFA147, QFA125, QFA122.