Apparatus

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sensors Mode-S transponder

7C42E1

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-NHV · FOKKER 100 · operated by NETWORK AVIATION PTY LTD

Hex
7C42E1
Octal
37041341
Decimal
8,143,585
Country
AU
Tail
VH-NHV
Type
F100
No current signal · last broadcast 1d ago
Flights observed
133
Distinct callsigns
20
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C42E1.

Country allocation

The ICAO 24-bit address 7C42E1 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
NWK2771 - 12 2026-07-06
NWK2770 - 12 2026-07-05
NWK2773 - 6 2026-07-02
NWK2772 - 6 2026-07-02
NWK1615 - 6 2026-07-10
NWK1614 - 6 2026-07-10
NWK1600 - 6 2026-06-09
NWK1770 - 5 2026-06-11
NWK1611 - 5 2026-06-18
NWK1610 - 5 2026-06-18
NWK2928 - 4 2026-05-13
NWK2929 - 3 2026-05-13
NWK2924 - 3 2026-06-12
NWK2909 - 3 2026-05-24
NWK1773 - 3 2026-06-16
NWK1772 - 3 2026-05-11
NWK1771 - 3 2026-07-15
NWK1613 - 3 2026-05-28
NWK1612 - 3 2026-05-27
NWK1602 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 NWK1771 PER → PER Jul 15, 21:10 UTCJul 16, 04:35 UTC7h 25m
2026-07-15 NWK1723 PER → PER Jul 15, 04:40 UTCJul 15, 09:00 UTC4h 20m
2026-07-10 NWK1615 - Jul 10, 10:50 UTCJul 10, 11:20 UTC30m
2026-07-10 NWK1614 - Jul 10, 08:40 UTCJul 10, 09:10 UTC30m
2026-07-10 NWK1602 PER → PER Jul 10, 03:20 UTCJul 10, 07:40 UTC4h 20m
2026-07-09 NWK2777 - Jul 9, 10:30 UTCJul 9, 11:40 UTC1h 10m
2026-07-09 NWK2776 PER → KGI Jul 9, 08:25 UTCJul 9, 09:15 UTC50m
2026-07-09 NWK1721 PER → PER Jul 9, 00:10 UTCJul 9, 05:50 UTC5h 40m
2026-07-07 NWK1712 PER → PER Jul 7, 09:15 UTCJul 7, 13:05 UTC3h 50m
2026-07-06 NWK1726 PER → PER Jul 6, 23:15 UTCJul 7, 05:15 UTC6h 0m
2026-07-06 NWK2771 - Jul 6, 08:30 UTCJul 6, 09:30 UTC1h 0m
2026-07-05 NWK2770 - Jul 5, 23:30 UTCJul 6, 00:20 UTC50m
2026-07-02 NWK2773 - Jul 2, 08:50 UTCJul 2, 10:00 UTC1h 10m
2026-07-02 NWK2772 - Jul 2, 06:45 UTCJul 2, 07:40 UTC55m
2026-07-01 NWK2771 - Jul 1, 23:30 UTCJul 2, 00:40 UTC1h 10m
2026-07-01 NWK2770 - Jul 1, 21:45 UTCJul 1, 22:40 UTC55m
2026-07-01 NWK2773 - Jul 1, 09:00 UTCJul 1, 10:05 UTC1h 5m
2026-07-01 NWK2772 - Jul 1, 06:45 UTCJul 1, 07:40 UTC55m
2026-07-01 NWK2771 KGI → PER Jul 1, 01:10 UTCJul 1, 02:10 UTC1h 0m
2026-07-01 NWK2771 - Jul 1, 00:05 UTCJul 1, 00:20 UTC15m
2026-06-30 NWK2770 - Jun 30, 22:05 UTCJun 30, 22:50 UTC45m
2026-06-30 NWK2771 - Jun 30, 09:10 UTCJun 30, 10:25 UTC1h 15m
2026-06-30 NWK2770 - Jun 30, 04:40 UTCJun 30, 05:25 UTC45m
2026-06-29 NWK2771 - Jun 29, 08:39 UTCJun 29, 09:50 UTC1h 10m
2026-06-29 NWK2770 - Jun 29, 01:29 UTCJun 29, 02:20 UTC50m
2026-06-26 NWK2925 PER → PER Jun 26, 04:50 UTCJun 26, 09:30 UTC4h 40m
2026-06-25 NWK2773 - Jun 25, 09:05 UTCJun 25, 10:09 UTC1h 5m
2026-06-25 NWK2772 - Jun 25, 07:05 UTCJun 25, 07:49 UTC45m
2026-06-25 NWK2771 - Jun 25, 01:54 UTCJun 25, 03:04 UTC1h 10m
2026-06-24 NWK2770 - Jun 24, 23:50 UTCJun 25, 00:40 UTC50m
2026-06-24 NWK2773 - Jun 24, 08:45 UTCJun 24, 09:55 UTC1h 10m
2026-06-24 NWK2772 - Jun 24, 06:45 UTCJun 24, 07:30 UTC45m
2026-06-24 NWK2771 - Jun 24, 03:35 UTCJun 24, 04:55 UTC1h 20m
2026-06-24 NWK2770 - Jun 24, 01:19 UTCJun 24, 02:05 UTC45m
2026-06-22 NWK1624 PER → PER Jun 22, 07:49 UTCJun 22, 11:35 UTC3h 45m
2026-06-21 NWK1630 PER → PER Jun 21, 23:44 UTCJun 22, 03:50 UTC4h 5m
2026-06-18 NWK1611 KGI → PER Jun 18, 11:20 UTCJun 18, 12:15 UTC55m
2026-06-18 NWK1610 PER → KGI Jun 18, 09:30 UTCJun 18, 10:20 UTC50m
2026-06-16 NWK7840 PER → PER Jun 16, 22:55 UTCJun 17, 02:55 UTC4h 0m
2026-06-16 NWK1773 PER → PER Jun 16, 00:40 UTCJun 16, 05:10 UTC4h 30m
2026-06-15 NWK2771 - Jun 15, 08:45 UTCJun 15, 09:45 UTC1h 0m
2026-06-15 NWK2770 - Jun 15, 02:20 UTCJun 15, 02:35 UTC15m
2026-06-14 NWK2770 PER → KGI Jun 14, 23:35 UTCJun 15, 01:00 UTC1h 25m
2026-06-12 NWK2924 PER → PER Jun 12, 05:00 UTCJun 12, 09:35 UTC4h 35m
2026-06-11 NWK1770 PER → PER Jun 11, 22:05 UTCJun 12, 02:20 UTC4h 16m
2026-06-11 NWK1634 PER → PER Jun 11, 04:55 UTCJun 11, 08:40 UTC3h 45m
2026-06-09 NWK1600 PER → PER Jun 9, 21:35 UTCJun 10, 09:35 UTC12h 0m
2026-06-09 NWK2908 PER → PER Jun 9, 02:05 UTCJun 9, 06:35 UTC4h 30m
2026-06-08 NWK1611 KGI → PER Jun 8, 11:10 UTCJun 8, 12:10 UTC1h 0m
2026-06-08 NWK1610 PER → KGI Jun 8, 09:35 UTCJun 8, 10:25 UTC50m

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

Mode-S 7C42E1 frequently asked

What is Mode-S code 7C42E1?
7C42E1 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NHV.
Where is Mode-S 7C42E1 registered?
Mode-S code 7C42E1 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C42E1 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C42E1, octal 37041341, decimal 8,143,585.
What flights does 7C42E1 operate?
Mode-S 7C42E1 has broadcast 20 distinct callsigns, including NWK2771, NWK2770, NWK2773, NWK2772, NWK1615.