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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
Broadcasting now · callsign VOZ812 · 2,625 ft
Flights observed
395
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 11:10 UTC

Current position

7C7A45 is currently broadcasting. Map zoomed to live position.

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
VOZ755 - 4 2026-07-20
VOZ613 - 4 2026-07-18
VOZ562 - 4 2026-06-16
VOZ219 - 4 2026-07-18
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
VOZ721 - 3 2026-07-09
VOZ692 Virgin Australia 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VOZ441 ADL → SYD Jul 26, 09:35 UTCJul 26, 11:10 UTC1h 35m
2026-07-26 VOZ237 MEL → ADL Jul 26, 07:30 UTCJul 26, 08:30 UTC1h 0m
2026-07-26 VOZ1594 NTL → MEL Jul 26, 04:55 UTCJul 26, 06:05 UTC1h 10m
2026-07-26 VOZ1593 MEL → NTL Jul 26, 02:45 UTCJul 26, 03:50 UTC1h 5m
2026-07-25 VOZ316 BNE → MEL Jul 25, 23:25 UTCJul 26, 01:35 UTC2h 10m
2026-07-24 VOZ387 BNE → TSV Jul 24, 23:10 UTCJul 25, 03:20 UTC4h 10m
2026-07-24 VOZ397 BNE → TSV Jul 24, 10:25 UTCJul 24, 21:30 UTC11h 5m
2026-07-24 VOZ965 SYD → BNE Jul 24, 07:20 UTCJul 24, 08:25 UTC1h 5m
2026-07-24 VOZ1140 BNK → SYD Jul 24, 02:50 UTCJul 24, 03:55 UTC1h 5m
2026-07-24 VOZ1139 SYD → BNK Jul 24, 01:05 UTCJul 24, 02:00 UTC55m
2026-07-23 VOZ823 MEL → SYD Jul 23, 23:00 UTCJul 23, 23:55 UTC55m
2026-07-23 VOZ710 PER → MEL Jul 23, 15:50 UTCJul 23, 19:20 UTC3h 30m
2026-07-23 VOZ472 BNE → PER Jul 23, 08:45 UTCJul 23, 14:15 UTC5h 30m
2026-07-23 VOZ391 BNE → TSV Jul 23, 02:35 UTCJul 23, 06:45 UTC4h 10m
2026-07-22 VOZ383 BNE → TSV Jul 22, 21:25 UTCJul 23, 01:35 UTC4h 10m
2026-07-22 VOZ322 BNE → MEL Jul 22, 00:00 UTCJul 22, 02:10 UTC2h 10m
2026-07-21 VOZ913 SYD → BNE Jul 21, 21:55 UTCJul 21, 22:55 UTC1h 0m
2026-07-21 VOZ1428 SYD → SYD Jul 21, 05:25 UTCJul 21, 12:00 UTC6h 35m
2026-07-21 VOZ516 OOL → SYD Jul 21, 00:30 UTCJul 21, 01:40 UTC1h 10m
2026-07-20 VOZ509 SYD → OOL Jul 20, 22:35 UTCJul 20, 23:35 UTC1h 0m
2026-07-20 VOZ500 OOL → SYD Jul 20, 20:10 UTCJul 20, 21:20 UTC1h 10m
2026-07-20 VOZ755 - Jul 20, 09:05 UTCJul 20, 10:50 UTC1h 45m
2026-07-20 VOZ1594 - Jul 20, 05:05 UTCJul 20, 06:25 UTC1h 20m
2026-07-20 VOZ1593 - Jul 20, 02:40 UTCJul 20, 03:55 UTC1h 15m
2026-07-20 VOZ830 SYD → MEL Jul 20, 00:10 UTCJul 20, 01:30 UTC1h 20m
2026-07-19 VOZ441 - Jul 19, 09:45 UTCJul 19, 11:05 UTC1h 20m
2026-07-19 VOZ237 MEL → ADL Jul 19, 07:30 UTCJul 19, 08:30 UTC1h 0m
2026-07-19 VOZ332 BNE → MEL Jul 19, 04:10 UTCJul 19, 06:15 UTC2h 5m
2026-07-19 VOZ1217 - Jul 19, 01:35 UTCJul 19, 02:50 UTC1h 15m
2026-07-18 VOZ1210 BNE → CBR Jul 18, 23:05 UTCJul 19, 00:30 UTC1h 25m
2026-07-18 VOZ600 - Jul 18, 20:30 UTCJul 18, 21:40 UTC1h 10m
2026-07-18 VOZ613 - Jul 18, 05:30 UTCJul 18, 06:40 UTC1h 10m
2026-07-18 VOZ1393 - Jul 18, 02:35 UTCJul 18, 04:30 UTC1h 56m
2026-07-18 VOZ219 MEL → ADL Jul 18, 00:19 UTCJul 18, 01:20 UTC1h 0m
2026-07-17 VOZ308 BNE → MEL Jul 17, 21:05 UTCJul 17, 23:05 UTC2h 0m
2026-07-17 VOZ616 - Jul 17, 07:40 UTCJul 17, 08:59 UTC1h 20m
2026-07-17 VOZ613 - Jul 17, 05:35 UTCJul 17, 06:45 UTC1h 10m
2026-07-17 VOZ321 MEL → BNE Jul 17, 00:14 UTCJul 17, 02:10 UTC1h 55m
2026-07-16 VOZ308 - Jul 16, 21:10 UTCJul 16, 23:10 UTC2h 0m
2026-07-15 VOZ1235 - Jul 15, 23:05 UTCJul 16, 02:10 UTC3h 5m
2026-07-15 VOZ393 BNE → BNE Jul 15, 05:00 UTCJul 15, 09:15 UTC4h 15m
2026-07-14 VOZ1273 - Jul 14, 21:35 UTCJul 15, 02:35 UTC4h 59m
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

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?
Yes. Mode-S 7C7A45 is currently airborne.
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.