Apparatus

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sensors Mode-S transponder

7C42E2

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C42E2
Octal
37041342
Decimal
8,143,586
Country
AU
Tail
VH-NHW
Type
B737
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
344
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S 7C42E2.

Country allocation

The ICAO 24-bit address 7C42E2 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
VOZ550 - 7 2026-07-05
VOZ1859 Virgin Australia 6 2026-07-23
VOZ1858 - 6 2026-07-23
VOZ9374 Virgin Australia 5 2026-06-10
VOZ9290 - 5 2026-06-03
VOZ717 - 5 2026-06-28
VOZ712 - 5 2026-06-27
VOZ677 Virgin Australia 5 2026-07-24
VOZ391 Virgin Australia 5 2026-07-26
VOZ341 - 5 2026-06-17
VOZ1865 - 5 2026-07-23
VOZ1864 - 5 2026-07-23
VOZ1840 Virgin Australia 5 2026-07-20
VOZ9373 Virgin Australia 4 2026-06-09
VOZ9372 - 4 2026-07-06
VOZ9282 - 4 2026-07-08
VOZ680 Virgin Australia 4 2026-07-23
VOZ383 - 4 2026-07-16
VOZ332 - 4 2026-06-17
VOZ1482 - 4 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VOZ1231 BNE → ROK Jul 26, 20:45 UTCJul 26, 21:25 UTC40m
2026-07-26 VOZ1007 HBA → BNE Jul 26, 07:20 UTCJul 26, 13:25 UTC6h 5m
2026-07-26 VOZ391 BNE → TSV Jul 26, 01:55 UTCJul 26, 06:05 UTC4h 10m
2026-07-25 VOZ925 SYD → BNE Jul 25, 23:25 UTCJul 26, 00:30 UTC1h 5m
2026-07-25 VOZ811 MEL → SYD Jul 25, 21:10 UTCJul 25, 22:10 UTC1h 0m
2026-07-25 VOZ696 PER → MEL Jul 25, 06:25 UTCJul 25, 09:50 UTC3h 25m
2026-07-24 VOZ677 MEL → PER Jul 24, 21:40 UTCJul 25, 01:25 UTC3h 45m
2026-07-24 VOZ1330 MEL → HBA Jul 24, 08:40 UTCJul 24, 11:20 UTC2h 40m
2026-07-24 VOZ858 SYD → MEL Jul 24, 06:05 UTCJul 24, 07:10 UTC1h 5m
2026-07-24 VOZ847 MEL → SYD Jul 24, 03:50 UTCJul 24, 04:50 UTC1h 0m
2026-07-23 VOZ680 PER → MEL Jul 23, 23:05 UTCJul 24, 02:25 UTC3h 20m
2026-07-23 VOZ1864 - Jul 23, 11:50 UTCJul 23, 12:25 UTC35m
2026-07-23 VOZ1865 PER → KGI Jul 23, 09:05 UTCJul 23, 09:55 UTC50m
2026-07-23 VOZ1858 - Jul 23, 07:05 UTCJul 23, 08:00 UTC55m
2026-07-23 VOZ1859 PER → KGI Jul 23, 05:30 UTCJul 23, 06:20 UTC50m
2026-07-22 VOZ681 MEL → PER Jul 22, 23:35 UTCJul 23, 03:50 UTC4h 15m
2026-07-22 VOZ692 PER → MEL Jul 22, 04:35 UTCJul 22, 05:05 UTC30m
2026-07-21 VOZ1837 PER → PER Jul 21, 22:35 UTCJul 22, 03:35 UTC5h 0m
2026-07-21 VOZ1864 - Jul 21, 10:35 UTCJul 21, 11:50 UTC1h 15m
2026-07-21 VOZ1865 PER → KGI Jul 21, 09:00 UTCJul 21, 09:50 UTC50m
2026-07-21 VOZ1858 KGI → PER Jul 21, 06:55 UTCJul 21, 07:55 UTC1h 0m
2026-07-21 VOZ1859 - Jul 21, 05:20 UTCJul 21, 06:10 UTC50m
2026-07-20 VOZ1840 PHE → PER Jul 20, 22:25 UTCJul 21, 03:25 UTC5h 0m
2026-07-20 VOZ1725 PER → KTA Jul 20, 03:15 UTCJul 20, 07:30 UTC4h 15m
2026-07-19 VOZ9453 LNO → PER Jul 19, 22:15 UTCJul 20, 00:55 UTC2h 40m
2026-07-19 VOZ476 BNE → PER Jul 19, 10:25 UTCJul 19, 15:35 UTC5h 10m
2026-07-19 VOZ393 BNE → BNE Jul 19, 04:50 UTCJul 19, 09:05 UTC4h 15m
2026-07-18 VOZ771 BNE → BNE Jul 18, 20:20 UTCJul 19, 01:20 UTC5h 0m
2026-07-17 VOZ1009 HBA → BNE Jul 17, 21:44 UTCJul 18, 03:40 UTC5h 56m
2026-07-17 VOZ793 - Jul 17, 07:55 UTCJul 17, 13:00 UTC5h 5m
2026-07-17 VOZ391 BNE → BNE Jul 17, 01:59 UTCJul 17, 06:15 UTC4h 15m
2026-07-16 VOZ383 BNE → BNE Jul 16, 20:25 UTCJul 17, 00:35 UTC4h 10m
2026-07-16 VOZ1007 BNE → BNE Jul 16, 07:30 UTCJul 16, 13:25 UTC5h 55m
2026-07-16 VOZ391 BNE → BNE Jul 16, 02:00 UTCJul 16, 06:15 UTC4h 15m
2026-07-15 VOZ383 BNE → BNE Jul 15, 20:30 UTCJul 16, 00:45 UTC4h 15m
2026-07-15 VOZ391 BNE → BNE Jul 15, 02:05 UTCJul 15, 06:15 UTC4h 10m
2026-07-14 VOZ383 - Jul 14, 20:30 UTCJul 15, 00:30 UTC3h 59m
2026-07-14 VOZ951 - Jul 14, 05:05 UTCJul 14, 06:15 UTC1h 10m
2026-07-14 VOZ1140 BNK → SYD Jul 14, 02:45 UTCJul 14, 03:50 UTC1h 5m
2026-07-14 VOZ1139 SYD → BNK Jul 14, 01:00 UTCJul 14, 01:55 UTC55m
2026-07-13 VOZ823 MEL → SYD Jul 13, 22:45 UTCJul 13, 23:50 UTC1h 5m
2026-07-13 VOZ800 SYD → MEL Jul 13, 20:20 UTCJul 13, 21:45 UTC1h 25m
2026-07-13 VOZ1536 - Jul 13, 08:05 UTCJul 13, 12:45 UTC4h 40m
2026-07-13 VOZ425 - Jul 13, 05:25 UTCJul 13, 06:50 UTC1h 25m
2026-07-13 VOZ418 SYD → ADL Jul 13, 02:40 UTCJul 13, 04:25 UTC1h 45m
2026-07-12 VOZ932 - Jul 12, 23:30 UTCJul 13, 00:40 UTC1h 10m
2026-07-12 VOZ909 - Jul 12, 21:20 UTCJul 12, 22:25 UTC1h 5m
2026-07-12 VOZ1537 SYD → SYD Jul 12, 08:25 UTCJul 12, 12:20 UTC3h 55m
2026-07-12 VOZ425 - Jul 12, 05:15 UTCJul 12, 06:40 UTC1h 25m
2026-07-12 VOZ418 SYD → ADL Jul 12, 02:30 UTCJul 12, 04:25 UTC1h 55m

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

Mode-S 7C42E2 frequently asked

What is Mode-S code 7C42E2?
7C42E2 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NHW.
Where is Mode-S 7C42E2 registered?
Mode-S code 7C42E2 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C42E2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C42E2, octal 37041342, decimal 8,143,586.
What flights does 7C42E2 operate?
Mode-S 7C42E2 has broadcast 20 distinct callsigns, including VOZ550, VOZ1859, VOZ1858, VOZ9374, VOZ9290.