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sensors Mode-S transponder

7C7A45

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-YFR · BOEING 737-800 · operated by VIRGIN AUSTRALIA AIRLINES PTY LTD

Hex
7C7A45
Octal
37075105
Decimal
8,157,765
Country
AU
Tail
VH-YFR
Type
B738
No current signal · last broadcast 5h ago
Flights observed
353
Distinct callsigns
20
Country
AU
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 7C7A45.

Country allocation

The ICAO 24-bit address 7C7A45 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
VOZ555 - 8 2026-07-02
VOZ560 - 6 2026-07-02
VOZ811 - 5 2026-07-02
VOZ938 - 4 2026-07-05
VOZ905 Virgin Australia 4 2026-06-22
VOZ800 Virgin Australia 4 2026-06-04
VOZ562 - 4 2026-06-16
VOZ1368 - 4 2026-07-13
VOZ978 Virgin Australia 3 2026-04-20
VOZ970 - 3 2026-06-25
VOZ957 - 3 2026-07-14
VOZ892 - 3 2026-07-02
VOZ883 - 3 2026-07-13
VOZ866 - 3 2026-04-13
VOZ838 Virgin Australia 3 2026-06-09
VOZ755 Virgin Australia 3 2026-06-12
VOZ721 - 3 2026-07-09
VOZ692 Virgin Australia 3 2026-06-12
VOZ434 - 3 2026-07-01
VOZ219 - 3 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 VOZ957 SYD → BNE Jul 14, 06:15 UTCJul 14, 07:25 UTC1h 10m
2026-07-14 VOZ950 BNE → SYD Jul 14, 03:30 UTCJul 14, 04:40 UTC1h 10m
2026-07-14 VOZ931 SYD → BNE Jul 14, 00:35 UTCJul 14, 01:50 UTC1h 15m
2026-07-13 VOZ883 - Jul 13, 09:25 UTCJul 13, 10:25 UTC1h 0m
2026-07-13 VOZ1373 - Jul 13, 07:45 UTCJul 13, 08:25 UTC40m
2026-07-13 VOZ1368 - Jul 13, 05:15 UTCJul 13, 05:50 UTC35m
2026-07-12 VOZ1291 - Jul 12, 20:40 UTCJul 13, 04:05 UTC7h 25m
2026-07-12 VOZ1297 MEL → MEL Jul 12, 07:01 UTCJul 12, 14:01 UTC7h 0m
2026-07-12 VOZ1036 - Jul 12, 03:35 UTCJul 12, 06:01 UTC2h 25m
2026-07-12 VOZ1031 - Jul 12, 00:35 UTCJul 12, 02:30 UTC1h 55m
2026-07-10 VOZ878 - Jul 10, 09:45 UTCJul 10, 10:50 UTC1h 5m
2026-07-10 VOZ534 - Jul 10, 06:35 UTCJul 10, 08:15 UTC1h 40m
2026-07-10 VOZ525 - Jul 10, 04:35 UTCJul 10, 05:35 UTC1h 0m
2026-07-10 VOZ841 MEL → SYD Jul 10, 02:20 UTCJul 10, 03:25 UTC1h 5m
2026-07-09 VOZ824 SYD → MEL Jul 9, 23:20 UTCJul 10, 00:25 UTC1h 5m
2026-07-09 VOZ572 PER → SYD Jul 9, 16:25 UTCJul 9, 20:20 UTC3h 55m
2026-07-09 VOZ721 - Jul 9, 09:50 UTCJul 9, 13:00 UTC3h 10m
2026-07-09 VOZ718 PER → ADL Jul 9, 06:10 UTCJul 9, 08:40 UTC2h 30m
2026-07-06 VOZ1840 PER → PER Jul 6, 22:40 UTCJul 7, 03:40 UTC5h 0m
2026-07-06 VOZ697 MEL → PER Jul 6, 08:10 UTCJul 6, 11:40 UTC3h 30m
2026-07-06 VOZ1040 MCY → MEL Jul 6, 05:05 UTCJul 6, 07:05 UTC2h 0m
2026-07-06 VOZ1037 - Jul 6, 01:55 UTCJul 6, 03:50 UTC1h 55m
2026-07-05 VOZ820 SYD → MEL Jul 5, 22:55 UTCJul 5, 23:55 UTC1h 0m
2026-07-05 VOZ908 BNE → SYD Jul 5, 20:20 UTCJul 5, 21:35 UTC1h 15m
2026-07-05 VOZ993 SYD → BNE Jul 5, 11:00 UTCJul 5, 12:15 UTC1h 15m
2026-07-05 VOZ1424 SYD → SYD Jul 5, 03:00 UTCJul 5, 09:25 UTC6h 25m
2026-07-05 VOZ938 BNE → SYD Jul 5, 00:30 UTCJul 5, 01:35 UTC1h 5m
2026-07-04 VOZ309 - Jul 4, 21:30 UTCJul 4, 23:15 UTC1h 45m
2026-07-04 VOZ9004 - Jul 4, 10:25 UTCJul 4, 11:00 UTC35m
2026-07-04 VOZ1368 - Jul 4, 06:10 UTCJul 4, 06:40 UTC30m
2026-07-03 VOZ1291 - Jul 3, 20:35 UTCJul 4, 03:40 UTC7h 5m
2026-07-03 VOZ356 BNE → MEL Jul 3, 11:35 UTCJul 3, 13:40 UTC2h 5m
2026-07-03 VOZ469 PER → BNE Jul 3, 06:20 UTCJul 3, 10:20 UTC4h 0m
2026-07-02 VOZ555 SYD → PER Jul 2, 23:35 UTCJul 3, 04:15 UTC4h 40m
2026-07-02 VOZ811 - Jul 2, 21:10 UTCJul 2, 22:15 UTC1h 5m
2026-07-02 VOZ892 SYD → MEL Jul 2, 10:55 UTCJul 2, 12:15 UTC1h 20m
2026-07-02 VOZ560 PER → SYD Jul 2, 06:15 UTCJul 2, 09:55 UTC3h 40m
2026-07-01 VOZ555 SYD → PER Jul 1, 23:35 UTCJul 2, 04:35 UTC5h 0m
2026-07-01 VOZ811 MEL → SYD Jul 1, 21:15 UTCJul 1, 22:25 UTC1h 10m
2026-07-01 VOZ244 ADL → MEL Jul 1, 11:25 UTCJul 1, 12:25 UTC1h 0m
2026-07-01 VOZ434 SYD → ADL Jul 1, 08:10 UTCJul 1, 10:15 UTC2h 5m
2026-07-01 VOZ958 - Jul 1, 05:20 UTCJul 1, 06:40 UTC1h 20m
2026-06-30 VOZ1273 BNE → BNE Jun 30, 21:45 UTCJul 1, 03:10 UTC5h 25m
2026-06-30 VOZ610 - Jun 30, 04:05 UTCJun 30, 05:10 UTC1h 5m
2026-06-30 VOZ609 - Jun 30, 01:50 UTCJun 30, 03:10 UTC1h 20m
2026-06-29 VOZ309 MEL → BNE Jun 29, 21:30 UTCJun 29, 23:29 UTC2h 0m
2026-06-28 VOZ352 - Jun 28, 09:05 UTCJun 28, 11:14 UTC2h 10m
2026-06-28 VOZ339 MEL → BNE Jun 28, 06:00 UTCJun 28, 07:50 UTC1h 50m
2026-06-28 VOZ736 - Jun 28, 02:49 UTCJun 28, 04:55 UTC2h 5m
2026-06-27 VOZ733 - Jun 27, 23:55 UTCJun 28, 01:40 UTC1h 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-YFR page for operator, model, and routing details .

Mode-S 7C7A45 frequently asked

What is Mode-S code 7C7A45?
7C7A45 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YFR.
Where is Mode-S 7C7A45 registered?
Mode-S code 7C7A45 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7A45 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7A45, octal 37075105, decimal 8,157,765.
What flights does 7C7A45 operate?
Mode-S 7C7A45 has broadcast 20 distinct callsigns, including VOZ555, VOZ560, VOZ811, VOZ938, VOZ905.