sensors Mode-S transponder

7C47B8

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-OGA · AIRBUS A-321neo · operated by QANTAS AIRWAYS LIMITED

Hex
7C47B8
Octal
37043670
Decimal
8,144,824
Country
AU
Tail
VH-OGA
Type
A21N
Broadcasting now · callsign QFA643 · 30,000 ft
Flights observed
10
Distinct callsigns
4
Country
AU
Last broadcast
12h ago

Current position

7C47B8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C47B8 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 4 distinct

Callsign Airline Flights Last seen
QFA646 - 3 2026-04-14
QFA641 - 3 2026-04-13
QFA490 - 2 2026-04-14
QFA471 - 2 2026-04-14

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 QFA490 - Apr 14, 10:10 UTCApr 14, 11:05 UTC55m
2026-04-14 QFA471 - Apr 14, 07:40 UTCApr 14, 08:55 UTC1h 15m
2026-04-14 QFA646 - Apr 14, 05:15 UTCApr 14, 06:10 UTC55m
2026-04-13 QFA641 - Apr 13, 20:40 UTCApr 13, 22:40 UTC2h 0m
2026-04-13 QFA490 MEL → SYD Apr 13, 10:30 UTCApr 13, 11:30 UTC1h 0m
2026-04-13 QFA471 - Apr 13, 08:20 UTCApr 13, 09:25 UTC1h 5m
2026-04-13 QFA646 - Apr 13, 05:00 UTCApr 13, 06:50 UTC1h 50m
2026-04-13 QFA646 - Apr 13, 02:50 UTCApr 13, 03:30 UTC40m
2026-04-13 QFA641 SYD → PER Apr 13, 00:20 UTCApr 13, 00:50 UTC30m
2026-04-13 QFA641 - Apr 13, 00:10 UTCApr 13, 00:50 UTC40m

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

Mode-S 7C47B8 frequently asked

What is Mode-S code 7C47B8?
7C47B8 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OGA.
Where is Mode-S 7C47B8 registered?
Mode-S code 7C47B8 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C47B8 broadcasting right now?
Yes. Mode-S 7C47B8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C47B8, octal 37043670, decimal 8,144,824.
What flights does 7C47B8 operate?
Mode-S 7C47B8 has broadcast 4 distinct callsigns, including QFA646, QFA641, QFA490, QFA471.