sensors Mode-S transponder

7C42D2

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C42D2
Octal
37041322
Decimal
8,143,570
Country
AU
Tail
VH-NHG
Type
F100
No current signal · last broadcast 3d ago
Flights observed
55
Distinct callsigns
20
Country
AU
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 7C42D2.

Country allocation

The ICAO 24-bit address 7C42D2 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 - 5 2026-05-24
NWK1614 - 5 2026-05-24
NWK1612 - 4 2026-05-13
NWK2954 - 3 2026-05-18
NWK1624 - 3 2026-05-25
NWK1613 - 3 2026-05-14
NWK2773 - 2 2026-04-16
NWK2772 - 2 2026-04-16
NWK2771 - 2 2026-04-16
NWK2770 - 2 2026-04-15
NWK1772 - 2 2026-05-21
NWK1712 - 2 2026-05-11
NWK1636 - 2 2026-05-27
NWK1618 - 2 2026-04-30
NWK2922 - 1 2026-05-04
NWK2921 - 1 2026-04-13
NWK2919 - 1 2026-04-22
NWK2918 - 1 2026-05-20
NWK2911 - 1 2026-05-25
NWK2796 - 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 NWK1636 PER → PER May 27, 00:14 UTCMay 27, 07:20 UTC7h 6m
2026-05-26 NWK1713 PER → PER May 26, 08:50 UTCMay 26, 12:45 UTC3h 55m
2026-05-25 NWK2911 PER → PER May 25, 22:19 UTCMay 26, 05:34 UTC7h 15m
2026-05-25 NWK1624 PER → PER May 25, 07:50 UTCMay 25, 11:40 UTC3h 50m
2026-05-25 NWK1631 - May 25, 03:35 UTCMay 25, 04:25 UTC50m
2026-05-24 NWK1615 - May 24, 10:30 UTCMay 24, 11:10 UTC40m
2026-05-24 NWK1614 - May 24, 08:40 UTCMay 24, 09:05 UTC25m
2026-05-21 NWK1772 PER → PER May 21, 23:05 UTCMay 22, 08:15 UTC9h 10m
2026-05-21 NWK1615 - May 21, 10:50 UTCMay 21, 11:25 UTC35m
2026-05-21 NWK1614 PER → DOX May 21, 08:40 UTCMay 21, 09:15 UTC35m
2026-05-20 NWK2918 PER → PER May 20, 21:30 UTCMay 21, 04:55 UTC7h 25m
2026-05-20 NWK1615 - May 20, 10:40 UTCMay 20, 11:15 UTC35m
2026-05-20 NWK1614 - May 20, 08:45 UTCMay 20, 09:20 UTC35m
2026-05-20 NWK1636 PER → PER May 20, 00:05 UTCMay 20, 07:05 UTC7h 1m
2026-05-18 NWK1600 PER → PER May 18, 23:15 UTCMay 19, 04:55 UTC5h 40m
2026-05-18 NWK1624 PER → PER May 18, 07:35 UTCMay 18, 11:25 UTC3h 50m
2026-05-18 NWK2954 PER → PER May 18, 00:30 UTCMay 18, 04:25 UTC3h 55m
2026-05-14 NWK1611 KGI → PER May 14, 11:15 UTCMay 14, 12:15 UTC1h 0m
2026-05-14 NWK1610 PER → KGI May 14, 09:15 UTCMay 14, 10:05 UTC50m
2026-05-14 NWK2746 PER → PER May 14, 03:50 UTCMay 14, 08:15 UTC4h 25m
2026-05-14 NWK1613 - May 14, 02:00 UTCMay 14, 02:35 UTC35m
2026-05-13 NWK1612 - May 13, 23:55 UTCMay 14, 00:25 UTC30m
2026-05-11 NWK1712 PER → PER May 11, 08:55 UTCMay 11, 12:40 UTC3h 45m
2026-05-11 NWK2954 PER → PER May 11, 00:19 UTCMay 11, 04:45 UTC4h 25m
2026-05-08 NWK1613 - May 8, 01:14 UTCMay 8, 01:59 UTC45m
2026-05-07 NWK1612 - May 7, 23:29 UTCMay 7, 23:55 UTC25m
2026-05-07 NWK1615 - May 7, 10:40 UTCMay 7, 11:30 UTC50m
2026-05-07 NWK1614 - May 7, 08:40 UTCMay 7, 09:05 UTC25m
2026-05-04 NWK2922 PER → PER May 4, 21:40 UTCMay 5, 08:35 UTC10h 55m
2026-05-04 NWK1712 PER → PER May 4, 08:45 UTCMay 4, 12:15 UTC3h 30m
2026-05-04 NWK2954 PER → PER May 4, 00:34 UTCMay 4, 04:39 UTC4h 5m
2026-05-01 NWK2796 PER → PER May 1, 04:25 UTCMay 1, 09:40 UTC5h 15m
2026-04-30 NWK1618 PER → PER Apr 30, 23:00 UTCMay 1, 02:55 UTC3h 55m
2026-04-30 NWK1650 PER → PER Apr 30, 07:50 UTCApr 30, 12:45 UTC4h 55m
2026-04-29 NWK1728 PER → PER Apr 29, 23:55 UTCApr 30, 04:45 UTC4h 50m
2026-04-29 NWK1624 PER → PER Apr 29, 07:40 UTCApr 29, 11:35 UTC3h 56m
2026-04-23 NWK1612 PER → PER Apr 23, 23:25 UTCApr 24, 00:55 UTC1h 30m
2026-04-23 NWK1615 - Apr 23, 10:35 UTCApr 23, 11:25 UTC50m
2026-04-23 NWK1614 - Apr 23, 08:40 UTCApr 23, 09:10 UTC30m
2026-04-22 NWK2919 PER → PER Apr 22, 22:05 UTCApr 23, 05:15 UTC7h 10m
2026-04-20 NWK1772 PER → PER Apr 20, 04:15 UTCApr 20, 08:25 UTC4h 10m
2026-04-19 NWK1618 PER → PER Apr 19, 22:50 UTCApr 20, 02:55 UTC4h 5m
2026-04-17 NWK1613 - Apr 17, 01:30 UTCApr 17, 02:05 UTC35m
2026-04-16 NWK1612 - Apr 16, 23:35 UTCApr 17, 00:05 UTC30m
2026-04-16 NWK2773 - Apr 16, 09:10 UTCApr 16, 09:54 UTC45m
2026-04-16 NWK2773 - Apr 16, 08:40 UTCApr 16, 09:05 UTC25m
2026-04-16 NWK2772 - Apr 16, 07:09 UTCApr 16, 07:45 UTC35m
2026-04-16 NWK2772 - Apr 16, 06:55 UTCApr 16, 07:05 UTC10m
2026-04-16 NWK2771 - Apr 16, 01:10 UTCApr 16, 01:15 UTC5m
2026-04-16 NWK2771 - Apr 16, 00:05 UTCApr 16, 01:05 UTC1h 0m

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

Mode-S 7C42D2 frequently asked

What is Mode-S code 7C42D2?
7C42D2 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NHG.
Where is Mode-S 7C42D2 registered?
Mode-S code 7C42D2 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C42D2 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C42D2, octal 37041322, decimal 8,143,570.
What flights does 7C42D2 operate?
Mode-S 7C42D2 has broadcast 20 distinct callsigns, including NWK1615, NWK1614, NWK1612, NWK2954, NWK1624.