Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C42D5

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C42D5
Octal
37041325
Decimal
8,143,573
Country
AU
Tail
VH-NHJ
Type
F100
No current signal · last broadcast 2h ago
Flights observed
120
Distinct callsigns
20
Country
AU
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 7C42D5.

Country allocation

The ICAO 24-bit address 7C42D5 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
NWK1615 - 9 2026-07-19
NWK1614 - 9 2026-07-19
NWK1613 - 9 2026-07-09
NWK1612 - 9 2026-07-08
NWK1611 - 5 2026-07-13
NWK1610 - 5 2026-07-13
NWK1600 - 5 2026-06-30
NWK2771 - 4 2026-06-08
NWK2770 - 4 2026-06-07
NWK1772 - 4 2026-07-06
NWK1602 - 4 2026-06-16
NWK2956 - 3 2026-07-02
NWK1770 - 3 2026-06-10
NWK1722 - 3 2026-07-09
NWK2991 - 2 2026-07-09
NWK2957 - 2 2026-06-04
NWK2940 - 2 2026-05-02
NWK2908 - 2 2026-06-15
NWK2777 - 2 2026-07-16
NWK1636 - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 NWK2920 PER → PER Jul 19, 22:35 UTCJul 20, 02:55 UTC4h 20m
2026-07-19 NWK1615 - Jul 19, 10:40 UTCJul 19, 11:10 UTC30m
2026-07-19 NWK1614 - Jul 19, 08:50 UTCJul 19, 09:20 UTC30m
2026-07-16 NWK1618 PER → PER Jul 16, 23:05 UTCJul 17, 02:50 UTC3h 45m
2026-07-16 NWK2777 KGI → PER Jul 16, 10:59 UTCJul 16, 12:20 UTC1h 20m
2026-07-16 NWK2776 PER → KGI Jul 16, 08:20 UTCJul 16, 09:15 UTC55m
2026-07-16 NWK1721 PER → PER Jul 16, 00:05 UTCJul 16, 05:25 UTC5h 20m
2026-07-15 NWK1615 - Jul 15, 10:35 UTCJul 15, 11:30 UTC55m
2026-07-15 NWK1614 - Jul 15, 08:50 UTCJul 15, 09:15 UTC25m
2026-07-15 NWK1636 PER → PER Jul 15, 00:15 UTCJul 15, 07:20 UTC7h 5m
2026-07-13 NWK2911 PER → PER Jul 13, 22:35 UTCJul 14, 05:35 UTC7h 0m
2026-07-13 NWK1611 KGI → PER Jul 13, 11:15 UTCJul 13, 12:10 UTC55m
2026-07-13 NWK1610 PER → KGI Jul 13, 09:30 UTCJul 13, 10:25 UTC55m
2026-07-12 NWK1615 - Jul 12, 10:25 UTCJul 12, 11:01 UTC35m
2026-07-12 NWK1614 - Jul 12, 08:40 UTCJul 12, 09:10 UTC30m
2026-07-10 NWK2930 PER → PER Jul 10, 05:30 UTCJul 10, 10:05 UTC4h 35m
2026-07-09 NWK2991 PER → PER Jul 9, 21:10 UTCJul 10, 03:35 UTC6h 25m
2026-07-09 NWK1611 KGI → PER Jul 9, 11:20 UTCJul 9, 12:30 UTC1h 10m
2026-07-09 NWK1610 PER → KGI Jul 9, 09:25 UTCJul 9, 10:15 UTC50m
2026-07-09 NWK1722 PER → PER Jul 9, 03:40 UTCJul 9, 08:15 UTC4h 35m
2026-07-09 NWK1613 - Jul 9, 01:15 UTCJul 9, 01:55 UTC40m
2026-07-08 NWK1612 - Jul 8, 23:35 UTCJul 9, 00:05 UTC30m
2026-07-08 NWK1615 - Jul 8, 10:40 UTCJul 8, 11:15 UTC35m
2026-07-08 NWK1614 PER → DOX Jul 8, 08:40 UTCJul 8, 09:10 UTC30m
2026-07-06 NWK1772 PER → PER Jul 6, 04:10 UTCJul 6, 08:35 UTC4h 25m
2026-07-06 NWK1613 - Jul 6, 01:25 UTCJul 6, 02:05 UTC40m
2026-07-05 NWK1612 - Jul 5, 23:35 UTCJul 6, 00:00 UTC25m
2026-07-03 NWK1615 - Jul 3, 10:40 UTCJul 3, 11:20 UTC40m
2026-07-03 NWK1614 - Jul 3, 08:55 UTCJul 3, 09:20 UTC25m
2026-07-02 NWK2991 PER → PER Jul 2, 21:40 UTCJul 3, 03:30 UTC5h 50m
2026-07-02 NWK2956 PER → PER Jul 2, 03:25 UTCJul 2, 12:00 UTC8h 35m
2026-06-30 NWK1600 PER → PER Jun 30, 22:00 UTCJul 1, 09:40 UTC11h 40m
2026-06-28 NWK7841 - Jun 28, 04:20 UTCJun 28, 04:55 UTC35m
2026-06-28 NWK7840 PER → GET Jun 28, 00:20 UTCJun 28, 00:50 UTC30m
2026-06-25 NWK1772 PER → PER Jun 25, 23:19 UTCJun 26, 08:20 UTC9h 0m
2026-06-25 NWK1634 PER → PER Jun 25, 04:49 UTCJun 25, 08:45 UTC3h 55m
2026-06-24 NWK1615 - Jun 24, 10:49 UTCJun 24, 11:39 UTC50m
2026-06-24 NWK1614 - Jun 24, 08:45 UTCJun 24, 09:15 UTC30m
2026-06-24 NWK1636 PER → PER Jun 24, 00:15 UTCJun 24, 07:15 UTC7h 0m
2026-06-19 NWK6235 - Jun 19, 02:39 UTCJun 19, 03:29 UTC50m
2026-06-17 NWK2918 - Jun 17, 21:50 UTCJun 17, 22:20 UTC30m
2026-06-16 NWK1600 PER → PER Jun 16, 21:40 UTCJun 17, 09:35 UTC11h 55m
2026-06-16 NWK1602 PER → PER Jun 16, 03:35 UTCJun 16, 08:15 UTC4h 40m
2026-06-15 NWK2908 PER → PER Jun 15, 21:55 UTCJun 16, 02:04 UTC4h 10m
2026-06-15 NWK1712 PER → PER Jun 15, 08:45 UTCJun 15, 12:39 UTC3h 55m
2026-06-15 NWK2954 PER → PER Jun 15, 00:35 UTCJun 15, 04:50 UTC4h 15m
2026-06-12 NWK2944 PER → PER Jun 12, 23:35 UTCJun 13, 03:35 UTC4h 0m
2026-06-12 NWK1611 KGI → PER Jun 12, 11:25 UTCJun 12, 12:25 UTC1h 0m
2026-06-12 NWK1610 PER → KGI Jun 12, 09:25 UTCJun 12, 10:20 UTC55m
2026-06-11 NWK1772 PER → PER Jun 11, 23:25 UTCJun 12, 08:05 UTC8h 41m

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

Mode-S 7C42D5 frequently asked

What is Mode-S code 7C42D5?
7C42D5 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NHJ.
Where is Mode-S 7C42D5 registered?
Mode-S code 7C42D5 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C42D5 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C42D5, octal 37041325, decimal 8,143,573.
What flights does 7C42D5 operate?
Mode-S 7C42D5 has broadcast 20 distinct callsigns, including NWK1615, NWK1614, NWK1613, NWK1612, NWK1611.