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
Broadcasting now · callsign VOZ1139 · 33,300 ft
Flights observed
304
Distinct callsigns
20
Country
AU
Last broadcast
1h ago

Current position

7C42E2 is currently broadcasting. Map zoomed to live position.

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
VOZ9374 Virgin Australia 5 2026-06-10
VOZ9290 - 5 2026-06-03
VOZ717 - 5 2026-06-28
VOZ712 - 5 2026-06-27
VOZ341 - 5 2026-06-17
VOZ9373 Virgin Australia 4 2026-06-09
VOZ9372 - 4 2026-07-06
VOZ9282 - 4 2026-07-08
VOZ677 Virgin Australia 4 2026-05-08
VOZ332 - 4 2026-06-17
VOZ1859 - 4 2026-07-10
VOZ1858 - 4 2026-07-10
VOZ1840 - 4 2026-07-01
VOZ1482 - 4 2026-07-08
VOZ1217 - 4 2026-06-17
VOZ1210 - 4 2026-06-16
VOZ9456 Virgin Australia 3 2026-06-01
VOZ9452 - 3 2026-07-02
VOZ9355 - 3 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-11 VOZ932 - Jul 11, 23:15 UTCJul 12, 00:35 UTC1h 20m
2026-07-10 VOZ1009 BNE → BNE Jul 10, 21:25 UTCJul 11, 03:25 UTC6h 0m
2026-07-10 VOZ477 PER → BNE Jul 10, 14:45 UTCJul 10, 18:30 UTC3h 45m
2026-07-10 VOZ1864 KGI → PER Jul 10, 10:45 UTCJul 10, 11:35 UTC50m
2026-07-10 VOZ1865 PER → KGI Jul 10, 09:00 UTCJul 10, 09:50 UTC50m
2026-07-10 VOZ1858 KGI → PER Jul 10, 06:55 UTCJul 10, 07:50 UTC55m
2026-07-10 VOZ1859 - Jul 10, 05:10 UTCJul 10, 05:55 UTC45m
2026-07-09 VOZ9072 PER → PER Jul 9, 22:00 UTCJul 10, 02:15 UTC4h 15m
2026-07-09 VOZ1862 KGI → PER Jul 9, 09:50 UTCJul 9, 10:55 UTC1h 5m
2026-07-09 VOZ1863 PER → KGI Jul 9, 07:35 UTCJul 9, 08:25 UTC50m
2026-07-08 VOZ1482 - Jul 8, 23:25 UTCJul 9, 05:10 UTC5h 45m
2026-07-08 VOZ9378 PER → PER Jul 8, 07:45 UTCJul 8, 10:35 UTC2h 50m
2026-07-08 VOZ9282 BQB → PER Jul 8, 06:05 UTCJul 8, 06:25 UTC20m
2026-07-08 VOZ9282 BQB → BQB Jul 8, 00:30 UTCJul 8, 05:10 UTC4h 40m
2026-07-07 VOZ9267 PER → BQB Jul 7, 23:15 UTCJul 7, 23:45 UTC30m
2026-07-07 VOZ721 - Jul 7, 09:05 UTCJul 7, 12:00 UTC2h 55m
2026-07-07 VOZ718 PER → ADL Jul 7, 05:35 UTCJul 7, 08:10 UTC2h 35m
2026-07-06 VOZ9372 PER → PER Jul 6, 22:10 UTCJul 7, 01:25 UTC3h 15m
2026-07-06 VOZ703 MEL → PER Jul 6, 11:20 UTCJul 6, 14:50 UTC3h 30m
2026-07-06 VOZ876 - Jul 6, 09:05 UTCJul 6, 10:15 UTC1h 10m
2026-07-06 VOZ859 MEL → SYD Jul 6, 06:30 UTCJul 6, 07:50 UTC1h 20m
2026-07-06 VOZ844 - Jul 6, 03:45 UTCJul 6, 04:45 UTC1h 0m
2026-07-05 VOZ550 PER → SYD Jul 5, 22:25 UTCJul 6, 02:15 UTC3h 50m
2026-07-05 VOZ1434 - Jul 5, 09:40 UTCJul 5, 10:25 UTC45m
2026-07-05 VOZ1435 - Jul 5, 02:15 UTCJul 5, 02:45 UTC30m
2026-07-03 VOZ1635 PER → PER Jul 3, 22:45 UTCJul 4, 05:50 UTC7h 5m
2026-07-03 VOZ697 MEL → PER Jul 3, 08:00 UTCJul 3, 11:45 UTC3h 45m
2026-07-03 VOZ1324 MEL → MEL Jul 3, 03:45 UTCJul 3, 06:35 UTC2h 50m
2026-07-02 VOZ1316 MEL → MEL Jul 2, 23:05 UTCJul 3, 02:35 UTC3h 30m
2026-07-02 VOZ204 ADL → MEL Jul 2, 20:55 UTCJul 2, 22:00 UTC1h 5m
2026-07-02 VOZ722 PER → ADL Jul 2, 10:10 UTCJul 2, 12:55 UTC2h 45m
2026-07-02 VOZ9452 PER → PER Jul 2, 04:55 UTCJul 2, 07:50 UTC2h 55m
2026-07-01 VOZ1840 PER → PER Jul 1, 22:40 UTCJul 2, 03:25 UTC4h 45m
2026-07-01 VOZ9487 PER → PER Jul 1, 06:45 UTCJul 1, 10:55 UTC4h 10m
2026-07-01 VOZ9213 - Jul 1, 01:10 UTCJul 1, 05:05 UTC3h 55m
2026-06-30 VOZ472 - Jun 30, 08:50 UTCJun 30, 14:00 UTC5h 10m
2026-06-30 VOZ467 PER → BNE Jun 30, 03:15 UTCJun 30, 06:55 UTC3h 40m
2026-06-29 VOZ9372 - Jun 29, 22:15 UTCJun 30, 01:35 UTC3h 21m
2026-06-29 VOZ9418 PER → PER Jun 29, 04:55 UTCJun 29, 08:39 UTC3h 45m
2026-06-28 VOZ9364 - Jun 28, 22:45 UTCJun 29, 03:20 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-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?
Yes. Mode-S 7C42E2 is currently airborne.
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, VOZ9374, VOZ9290, VOZ717, VOZ712.