Apparatus

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sensors Mode-S transponder

7C6DB5

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C6DB5
Octal
37066665
Decimal
8,154,549
Country
AU
Tail
VH-VYF
Type
B738
Broadcasting now · callsign QFA737 · 36,925 ft
Flights observed
390
Distinct callsigns
20
Country
AU
Last broadcast
2h ago

Current position

7C6DB5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C6DB5 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
QFA743 - 6 2026-06-22
QFA504 - 6 2026-06-21
QFA749 Qantas 5 2026-05-20
QFA633 Qantas 5 2026-06-05
QFA627 Qantas 5 2026-06-11
QFA620 Qantas 5 2026-05-26
QFA443 - 5 2026-06-22
QFA433 - 5 2026-07-04
QFA423 Qantas 5 2026-05-10
QFA889 - 4 2026-07-04
QFA740 - 4 2026-06-30
QFA735 - 4 2026-06-30
QFA703 - 4 2026-07-11
QFA696 - 4 2026-06-19
QFA693 - 4 2026-06-19
QFA690 - 4 2026-07-01
QFA687 - 4 2026-07-01
QFA679 - 4 2026-07-07
QFA671 - 4 2026-07-06
QFA621 Qantas 4 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 QFA428 MEL → SYD Jul 13, 23:30 UTCJul 14, 00:30 UTC1h 0m
2026-07-13 QFA605 BNE → MEL Jul 13, 20:10 UTCJul 13, 22:30 UTC2h 20m
2026-07-13 QFA628 MEL → BNE Jul 13, 07:45 UTCJul 13, 09:40 UTC1h 55m
2026-07-13 QFA451 SYD → MEL Jul 13, 04:40 UTCJul 13, 06:30 UTC1h 50m
2026-07-13 QFA438 MEL → SYD Jul 13, 01:40 UTCJul 13, 02:45 UTC1h 5m
2026-07-12 QFA6111 BNE → MEL Jul 12, 22:00 UTCJul 13, 00:30 UTC2h 30m
2026-07-12 QFA550 - Jul 12, 09:50 UTCJul 12, 11:01 UTC1h 10m
2026-07-12 QFA466 MEL → SYD Jul 12, 07:15 UTCJul 12, 08:30 UTC1h 15m
2026-07-11 QFA703 MEL → MEL Jul 11, 22:25 UTCJul 12, 06:05 UTC7h 40m
2026-07-11 QFA879 - Jul 11, 04:45 UTCJul 11, 06:45 UTC2h 0m
2026-07-11 QFA878 - Jul 11, 01:25 UTCJul 11, 03:05 UTC1h 40m
2026-07-10 QFA421 SYD → MEL Jul 10, 22:45 UTCJul 11, 00:00 UTC1h 15m
2026-07-10 QFA843 - Jul 10, 18:55 UTCJul 10, 20:05 UTC1h 10m
2026-07-10 QFA838 - Jul 10, 11:10 UTCJul 10, 12:10 UTC1h 0m
2026-07-10 QFA477 - Jul 10, 08:45 UTCJul 10, 10:00 UTC1h 15m
2026-07-10 QFA477 SYD → SYD Jul 10, 08:20 UTCJul 10, 08:30 UTC10m
2026-07-10 QFA923 SYD → SYD Jul 10, 00:40 UTCJul 10, 07:05 UTC6h 25m
2026-07-09 QFA732 ADL → SYD Jul 9, 21:15 UTCJul 9, 23:25 UTC2h 10m
2026-07-09 QFA745 SYD → ADL Jul 9, 08:55 UTCJul 9, 10:40 UTC1h 45m
2026-07-09 QFA462 MEL → SYD Jul 9, 06:10 UTCJul 9, 07:20 UTC1h 10m
2026-07-09 QFA447 SYD → MEL Jul 9, 03:45 UTCJul 9, 04:45 UTC1h 0m
2026-07-09 QFA519 BNE → SYD Jul 9, 00:25 UTCJul 9, 01:35 UTC1h 10m
2026-07-08 QFA826 BNE → BNE Jul 8, 10:40 UTCJul 8, 18:55 UTC8h 15m
2026-07-08 QFA934 PER → BNE Jul 8, 01:35 UTCJul 8, 05:30 UTC3h 55m
2026-07-07 QFA769 MEL → PER Jul 7, 06:30 UTCJul 7, 10:05 UTC3h 35m
2026-07-07 QFA682 ADL → MEL Jul 7, 03:00 UTCJul 7, 04:10 UTC1h 10m
2026-07-07 QFA679 MEL → ADL Jul 7, 01:00 UTCJul 7, 01:55 UTC55m
2026-07-06 QFA674 ADL → MEL Jul 6, 22:45 UTCJul 7, 00:00 UTC1h 15m
2026-07-06 QFA671 MEL → ADL Jul 6, 20:05 UTCJul 6, 21:25 UTC1h 20m
2026-07-06 QFA477 SYD → MEL Jul 6, 08:55 UTCJul 6, 10:05 UTC1h 10m
2026-07-06 QFA595 - Jul 6, 05:50 UTCJul 6, 07:05 UTC1h 15m
2026-07-06 QFA594 - Jul 6, 03:50 UTCJul 6, 04:50 UTC1h 0m
2026-07-05 QFA642 PER → SYD Jul 5, 22:35 UTCJul 6, 02:35 UTC4h 0m
2026-07-05 QFA891 ADL → PER Jul 5, 09:30 UTCJul 5, 12:30 UTC3h 0m
2026-07-05 QFA886 PER → ADL Jul 5, 06:00 UTCJul 5, 08:20 UTC2h 20m
2026-07-05 QFA887 ADL → PER Jul 5, 01:20 UTCJul 5, 04:05 UTC2h 45m
2026-07-04 QFA888 PER → ADL Jul 4, 09:10 UTCJul 4, 12:00 UTC2h 50m
2026-07-04 QFA889 - Jul 4, 04:50 UTCJul 4, 07:45 UTC2h 55m
2026-07-04 QFA683 MEL → ADL Jul 4, 02:55 UTCJul 4, 03:55 UTC1h 0m
2026-07-04 QFA433 SYD → MEL Jul 4, 00:20 UTCJul 4, 01:45 UTC1h 25m
2026-07-03 QFA507 BNE → SYD Jul 3, 21:45 UTCJul 3, 23:10 UTC1h 25m
2026-07-03 QFA554 - Jul 3, 11:55 UTCJul 3, 13:05 UTC1h 10m
2026-07-03 QFA545 BNE → SYD Jul 3, 09:20 UTCJul 3, 10:35 UTC1h 15m
2026-07-03 QFA540 SYD → BNE Jul 3, 06:45 UTCJul 3, 08:25 UTC1h 40m
2026-07-03 QFA523 BNE → SYD Jul 3, 01:45 UTCJul 3, 03:15 UTC1h 30m
2026-07-02 QFA512 SYD → BNE Jul 2, 23:20 UTCJul 3, 00:45 UTC1h 25m
2026-07-02 QFA589 - Jul 2, 21:05 UTCJul 2, 22:20 UTC1h 15m
2026-07-02 QFA598 - Jul 2, 09:45 UTCJul 2, 10:40 UTC55m
2026-07-02 QFA466 MEL → SYD Jul 2, 07:10 UTCJul 2, 08:10 UTC1h 0m
2026-07-02 QFA449 SYD → MEL Jul 2, 04:25 UTCJul 2, 05:40 UTC1h 15m

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

Mode-S 7C6DB5 frequently asked

What is Mode-S code 7C6DB5?
7C6DB5 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VYF.
Where is Mode-S 7C6DB5 registered?
Mode-S code 7C6DB5 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DB5 broadcasting right now?
Yes. Mode-S 7C6DB5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DB5, octal 37066665, decimal 8,154,549.
What flights does 7C6DB5 operate?
Mode-S 7C6DB5 has broadcast 20 distinct callsigns, including QFA743, QFA504, QFA749, QFA633, QFA627.