Apparatus

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sensors Mode-S transponder

7C47B9

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C47B9
Octal
37043671
Decimal
8,144,825
Country
AU
Tail
VH-OGB
Type
A21N
No current signal · last broadcast Jul 26, 22:05 UTC
Flights observed
409
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 22:05 UTC

Last known position

Most recent position reported by Mode-S 7C47B9.

Country allocation

The ICAO 24-bit address 7C47B9 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
QFA537 - 21 2026-07-23
QFA528 Qantas 19 2026-07-23
QFA481 - 18 2026-07-23
QFA413 Qantas 18 2026-07-22
QFA935 Qantas 17 2026-07-19
QFA498 Qantas 17 2026-07-23
QFA646 - 16 2026-07-10
QFA641 - 16 2026-07-09
QFA434 Qantas 16 2026-07-23
QFA426 - 16 2026-07-21
QFA654 - 15 2026-06-28
QFA648 Qantas 15 2026-07-24
QFA643 Qantas 15 2026-07-24
QFA405 Qantas 15 2026-07-26
QFA655 - 14 2026-06-28
QFA938 - 13 2026-07-19
QFA500 - 13 2026-07-18
QFA490 - 11 2026-06-25
QFA471 - 11 2026-06-25
QFA559 - 10 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QFA405 SYD → MEL Jul 26, 20:45 UTCJul 26, 21:50 UTC1h 5m
2026-07-26 QFA549 BNE → SYD Jul 26, 08:35 UTCJul 26, 09:45 UTC1h 10m
2026-07-26 QFA538 SYD → BNE Jul 26, 06:05 UTCJul 26, 07:15 UTC1h 11m
2026-07-24 QFA648 PER → MEL Jul 24, 04:35 UTCJul 24, 08:35 UTC4h 0m
2026-07-24 QFA643 SYD → PER Jul 24, 00:05 UTCJul 24, 03:10 UTC3h 5m
2026-07-23 QFA643 SYD → PER Jul 23, 22:45 UTCJul 23, 23:25 UTC40m
2026-07-23 QFA498 MEL → SYD Jul 23, 11:40 UTCJul 23, 12:40 UTC1h 0m
2026-07-23 QFA481 SYD → MEL Jul 23, 09:00 UTCJul 23, 10:10 UTC1h 10m
2026-07-23 QFA537 BNE → SYD Jul 23, 05:50 UTCJul 23, 07:05 UTC1h 15m
2026-07-23 QFA528 SYD → BNE Jul 23, 03:25 UTCJul 23, 04:35 UTC1h 10m
2026-07-23 QFA434 MEL → SYD Jul 23, 00:40 UTCJul 23, 01:35 UTC55m
2026-07-22 QFA413 SYD → MEL Jul 22, 21:55 UTCJul 22, 23:15 UTC1h 20m
2026-07-22 QFA652 PER → BNE Jul 22, 11:10 UTCJul 22, 12:15 UTC1h 5m
2026-07-22 QFA649 CNS → BNE Jul 22, 04:00 UTCJul 22, 04:50 UTC50m
2026-07-22 QFA649 CNS → BNE Jul 22, 02:45 UTCJul 22, 03:15 UTC30m
2026-07-21 QFA426 MEL → SYD Jul 21, 23:20 UTCJul 22, 00:20 UTC1h 0m
2026-07-21 QFA652 PER → BNE Jul 21, 20:40 UTCJul 21, 22:00 UTC1h 20m
2026-07-20 QFA652 PER → BNE Jul 20, 08:35 UTCJul 20, 12:20 UTC3h 45m
2026-07-20 QFA649 CNS → BNE Jul 20, 02:45 UTCJul 20, 07:25 UTC4h 40m
2026-07-19 QFA426 MEL → SYD Jul 19, 23:25 UTCJul 20, 00:25 UTC1h 0m
2026-07-19 QFA405 SYD → MEL Jul 19, 20:45 UTCJul 19, 22:00 UTC1h 15m
2026-07-19 QFA559 BNE → SYD Jul 19, 11:05 UTCJul 19, 12:35 UTC1h 30m
2026-07-19 QFA938 PER → BNE Jul 19, 05:50 UTCJul 19, 09:45 UTC3h 55m
2026-07-19 QFA935 BNE → PER Jul 19, 03:10 UTCJul 19, 03:45 UTC35m
2026-07-19 QFA935 BNE → PER Jul 19, 00:40 UTCJul 19, 01:05 UTC25m
2026-07-18 QFA935 BNE → PER Jul 18, 23:00 UTCJul 18, 23:50 UTC50m
2026-07-18 QFA500 SYD → BNE Jul 18, 20:10 UTCJul 18, 21:25 UTC1h 15m
2026-07-18 QFA652 PER → SYD Jul 18, 08:30 UTCJul 18, 12:10 UTC3h 40m
2026-07-18 QFA649 CNS → BNE Jul 18, 06:45 UTCJul 18, 07:20 UTC35m
2026-07-18 QFA649 CNS → BNE Jul 18, 02:45 UTCJul 18, 04:45 UTC2h 1m
2026-07-17 QFA515 BNE → SYD Jul 17, 23:35 UTCJul 18, 00:39 UTC1h 5m
2026-07-17 QFA938 PER → BNE Jul 17, 05:10 UTCJul 17, 09:10 UTC4h 0m
2026-07-16 QFA935 BNE → PER Jul 16, 22:59 UTCJul 17, 03:50 UTC4h 50m
2026-07-16 QFA500 SYD → BNE Jul 16, 20:19 UTCJul 16, 21:35 UTC1h 15m
2026-07-16 QFA498 MEL → SYD Jul 16, 11:10 UTCJul 16, 12:14 UTC1h 5m
2026-07-16 QFA481 SYD → MEL Jul 16, 08:50 UTCJul 16, 09:50 UTC1h 0m
2026-07-16 QFA537 - Jul 16, 05:50 UTCJul 16, 07:05 UTC1h 15m
2026-07-16 QFA528 SYD → BNE Jul 16, 03:15 UTCJul 16, 04:25 UTC1h 10m
2026-07-16 QFA434 MEL → SYD Jul 16, 00:45 UTCJul 16, 02:00 UTC1h 15m
2026-07-15 QFA413 SYD → MEL Jul 15, 21:50 UTCJul 15, 22:55 UTC1h 5m
2026-07-13 QFA549 BNE → SYD Jul 13, 08:25 UTCJul 13, 09:35 UTC1h 10m
2026-07-13 QFA936 PER → BNE Jul 13, 02:50 UTCJul 13, 06:40 UTC3h 50m
2026-07-12 QFA933 BNE → PER Jul 12, 20:15 UTCJul 13, 01:15 UTC5h 0m
2026-07-12 QFA946 PER → BNE Jul 12, 07:50 UTCJul 12, 11:45 UTC3h 55m
2026-07-12 QFA945 BNE → PER Jul 12, 01:15 UTCJul 12, 06:15 UTC5h 0m
2026-07-11 QFA500 SYD → BNE Jul 11, 20:25 UTCJul 11, 21:30 UTC1h 5m
2026-07-11 QFA470 MEL → SYD Jul 11, 07:25 UTCJul 11, 08:30 UTC1h 5m
2026-07-11 QFA449 - Jul 11, 04:40 UTCJul 11, 06:05 UTC1h 25m
2026-07-11 QFA523 BNE → SYD Jul 11, 02:00 UTCJul 11, 03:20 UTC1h 20m
2026-07-10 QFA510 - Jul 10, 23:25 UTCJul 11, 00:30 UTC1h 5m

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

Mode-S 7C47B9 frequently asked

What is Mode-S code 7C47B9?
7C47B9 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OGB.
Where is Mode-S 7C47B9 registered?
Mode-S code 7C47B9 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C47B9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C47B9, octal 37043671, decimal 8,144,825.
What flights does 7C47B9 operate?
Mode-S 7C47B9 has broadcast 20 distinct callsigns, including QFA537, QFA528, QFA481, QFA413, QFA935.