Apparatus

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sensors Mode-S transponder

7C4203

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-NBP · BOEING 737-700 · operated by VIRGIN AUSTRALIA AIRLINES PTY LTD

Hex
7C4203
Octal
37041003
Decimal
8,143,363
Country
AU
Tail
VH-NBP
Type
B737
No current signal · last broadcast Jul 26, 15:00 UTC
Flights observed
342
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 15:00 UTC

Last known position

Most recent position reported by Mode-S 7C4203.

Country allocation

The ICAO 24-bit address 7C4203 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
VOZ781 Virgin Australia 9 2026-07-24
VOZ1231 - 7 2026-07-23
VOZ1007 - 7 2026-07-24
VOZ569 Virgin Australia 5 2026-07-26
VOZ467 - 5 2026-07-14
VOZ1840 - 5 2026-06-24
VOZ9451 - 4 2026-06-25
VOZ9282 - 4 2026-06-10
VOZ9264 - 4 2026-06-11
VOZ678 Virgin Australia 4 2026-06-05
VOZ550 Virgin Australia 4 2026-07-25
VOZ418 - 4 2026-06-20
VOZ1852 Virgin Australia 4 2026-05-30
VOZ1851 Virgin Australia 4 2026-05-29
VOZ1485 Virgin Australia 4 2026-06-01
VOZ951 - 3 2026-07-02
VOZ9453 Virgin Australia 3 2026-06-29
VOZ9452 Virgin Australia 3 2026-05-14
VOZ9374 Virgin Australia 3 2026-05-26
VOZ876 Virgin Australia 3 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VOZ569 SYD → PER Jul 26, 10:25 UTCJul 26, 15:00 UTC4h 35m
2026-07-26 VOZ429 ADL → SYD Jul 26, 07:10 UTCJul 26, 09:00 UTC1h 50m
2026-07-26 VOZ424 SYD → ADL Jul 26, 04:35 UTCJul 26, 06:10 UTC1h 35m
2026-07-25 VOZ550 PER → SYD Jul 25, 22:00 UTCJul 26, 02:15 UTC4h 15m
2026-07-25 VOZ687 MEL → PER Jul 25, 02:50 UTCJul 25, 06:30 UTC3h 40m
2026-07-25 VOZ830 SYD → MEL Jul 25, 00:40 UTCJul 25, 01:50 UTC1h 10m
2026-07-24 VOZ908 BNE → SYD Jul 24, 20:30 UTCJul 24, 22:05 UTC1h 35m
2026-07-24 VOZ1007 BNE → BNE Jul 24, 07:25 UTCJul 24, 13:30 UTC6h 5m
2026-07-24 VOZ781 BNE → CNS Jul 24, 00:55 UTCJul 24, 06:00 UTC5h 5m
2026-07-23 VOZ1231 BNE → BNE Jul 23, 20:40 UTCJul 23, 23:20 UTC2h 40m
2026-07-23 VOZ965 SYD → BNE Jul 23, 07:35 UTCJul 23, 08:45 UTC1h 10m
2026-07-23 VOZ419 ADL → SYD Jul 23, 04:20 UTCJul 23, 05:40 UTC1h 20m
2026-07-23 VOZ414 SYD → ADL Jul 23, 02:55 UTCJul 23, 03:20 UTC25m
2026-07-23 VOZ414 SYD → ADL Jul 23, 01:30 UTCJul 23, 02:00 UTC30m
2026-07-22 VOZ920 BNE → SYD Jul 22, 22:55 UTCJul 23, 00:10 UTC1h 15m
2026-07-22 VOZ950 BNE → SYD Jul 22, 03:20 UTCJul 22, 04:45 UTC1h 25m
2026-07-21 VOZ925 SYD → BNE Jul 21, 23:25 UTCJul 22, 00:30 UTC1h 5m
2026-07-21 VOZ912 BNE → SYD Jul 21, 20:45 UTCJul 21, 22:00 UTC1h 15m
2026-07-21 VOZ471 PER → BNE Jul 21, 09:40 UTCJul 21, 13:35 UTC3h 55m
2026-07-20 VOZ1438 DRW → PER Jul 20, 12:05 UTCJul 20, 12:35 UTC30m
2026-07-20 VOZ1437 - Jul 20, 07:05 UTCJul 20, 07:30 UTC25m
2026-07-20 VOZ1437 - Jul 20, 03:50 UTCJul 20, 04:20 UTC30m
2026-07-19 VOZ1879 - Jul 19, 22:30 UTCJul 20, 02:20 UTC3h 50m
2026-07-19 VOZ569 - Jul 19, 14:25 UTCJul 19, 14:50 UTC25m
2026-07-19 VOZ569 - Jul 19, 11:45 UTCJul 19, 12:25 UTC40m
2026-07-19 VOZ569 - Jul 19, 10:30 UTCJul 19, 11:00 UTC30m
2026-07-19 VOZ871 MEL → SYD Jul 19, 07:45 UTCJul 19, 08:50 UTC1h 5m
2026-07-19 VOZ850 SYD → MEL Jul 19, 05:05 UTCJul 19, 06:10 UTC1h 5m
2026-07-19 VOZ520 - Jul 19, 02:35 UTCJul 19, 03:45 UTC1h 10m
2026-07-19 VOZ515 SYD → OOL Jul 19, 00:40 UTCJul 19, 01:40 UTC1h 0m
2026-07-18 VOZ819 MEL → SYD Jul 18, 22:35 UTCJul 18, 23:45 UTC1h 10m
2026-07-18 VOZ342 BNE → MEL Jul 18, 07:00 UTCJul 18, 09:00 UTC2h 0m
2026-07-17 VOZ383 BNE → BNE Jul 17, 21:34 UTCJul 18, 01:34 UTC4h 0m
2026-07-17 VOZ1007 BNE → BNE Jul 17, 07:25 UTCJul 17, 13:25 UTC6h 0m
2026-07-17 VOZ781 BNE → BNE Jul 17, 01:00 UTCJul 17, 06:00 UTC5h 0m
2026-07-16 VOZ1231 BNE → BNE Jul 16, 20:39 UTCJul 16, 23:20 UTC2h 40m
2026-07-16 VOZ781 BNE → BNE Jul 16, 00:55 UTCJul 16, 06:10 UTC5h 15m
2026-07-15 VOZ604 - Jul 15, 22:40 UTCJul 15, 23:50 UTC1h 10m
2026-07-15 VOZ601 - Jul 15, 20:25 UTCJul 15, 21:45 UTC1h 20m
2026-07-15 VOZ781 BNE → BNE Jul 15, 00:55 UTCJul 15, 06:00 UTC5h 5m
2026-07-14 VOZ1231 BNE → BNE Jul 14, 20:40 UTCJul 14, 23:25 UTC2h 44m
2026-07-14 VOZ993 SYD → BNE Jul 14, 10:50 UTCJul 14, 12:00 UTC1h 10m
2026-07-14 VOZ978 BNE → SYD Jul 14, 08:25 UTCJul 14, 09:45 UTC1h 20m
2026-07-14 VOZ467 - Jul 14, 02:55 UTCJul 14, 06:55 UTC4h 0m
2026-07-13 VOZ9372 - Jul 13, 22:20 UTCJul 14, 01:00 UTC2h 40m
2026-07-13 VOZ1864 KGI → PER Jul 13, 10:40 UTCJul 13, 11:30 UTC50m
2026-07-13 VOZ1865 PER → KGI Jul 13, 09:00 UTCJul 13, 09:50 UTC50m
2026-07-13 VOZ1858 KGI → PER Jul 13, 06:45 UTCJul 13, 07:45 UTC1h 0m
2026-07-13 VOZ1859 PER → KGI Jul 13, 05:05 UTCJul 13, 05:55 UTC50m
2026-07-12 VOZ9364 PER → PER Jul 12, 22:40 UTCJul 13, 03:15 UTC4h 35m

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

Mode-S 7C4203 frequently asked

What is Mode-S code 7C4203?
7C4203 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NBP.
Where is Mode-S 7C4203 registered?
Mode-S code 7C4203 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4203 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C4203, octal 37041003, decimal 8,143,363.
What flights does 7C4203 operate?
Mode-S 7C4203 has broadcast 20 distinct callsigns, including VOZ781, VOZ1231, VOZ1007, VOZ569, VOZ467.