Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C4400

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C4400
Octal
37042000
Decimal
8,143,872
Country
AU
Tail
VH-NPU
Type
F100
No current signal · last broadcast 1d ago
Flights observed
121
Distinct callsigns
20
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C4400.

Country allocation

The ICAO 24-bit address 7C4400 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 2026-06-22
NWK2770 - 11 2026-06-21
NWK2773 - 9 2026-06-18
NWK2772 - 9 2026-06-18
NWK1615 - 7 2026-07-05
NWK1614 - 7 2026-07-05
NWK1772 - 6 2026-07-13
NWK1610 - 5 2026-07-03
NWK1613 - 4 2026-06-16
NWK1612 - 4 2026-06-15
NWK1611 - 4 2026-07-03
NWK1600 - 3 2026-06-04
NWK2991 - 2 2026-04-19
NWK2956 - 2 2026-06-11
NWK2928 - 2 2026-06-19
NWK2908 - 2 2026-06-14
NWK1723 - 2 2026-04-16
NWK1722 - 2 2026-04-16
NWK1618 - 2 2026-04-28
NWK1603 - 2 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 NWK1634 PER → PER Jul 16, 04:40 UTCJul 16, 08:35 UTC3h 55m
2026-07-15 NWK1701 PER → PER Jul 15, 21:35 UTCJul 16, 01:50 UTC4h 15m
2026-07-14 NWK2902 PER → PER Jul 14, 22:40 UTCJul 15, 05:15 UTC6h 34m
2026-07-14 NWK1713 PER → PER Jul 14, 08:40 UTCJul 14, 12:35 UTC3h 55m
2026-07-13 NWK1726 PER → PER Jul 13, 23:15 UTCJul 14, 04:35 UTC5h 20m
2026-07-13 NWK1772 PER → PER Jul 13, 04:15 UTCJul 13, 08:20 UTC4h 5m
2026-07-12 NWK2920 PER → PER Jul 12, 22:40 UTCJul 13, 02:50 UTC4h 10m
2026-07-10 NWK6500 PER → PER Jul 10, 03:25 UTCJul 10, 07:35 UTC4h 10m
2026-07-05 NWK1615 - Jul 5, 11:00 UTCJul 5, 11:35 UTC35m
2026-07-05 NWK1614 - Jul 5, 08:40 UTCJul 5, 09:10 UTC30m
2026-07-03 NWK1611 KGI → PER Jul 3, 11:20 UTCJul 3, 12:15 UTC55m
2026-07-03 NWK1610 PER → KGI Jul 3, 09:25 UTCJul 3, 10:15 UTC50m
2026-07-02 NWK1772 PER → PER Jul 2, 23:00 UTCJul 3, 08:25 UTC9h 25m
2026-06-25 NWK1615 - Jun 25, 11:04 UTCJun 25, 11:50 UTC45m
2026-06-25 NWK1614 - Jun 25, 08:50 UTCJun 25, 09:14 UTC25m
2026-06-22 NWK2771 - Jun 22, 08:19 UTCJun 22, 09:34 UTC1h 15m
2026-06-21 NWK2770 - Jun 21, 23:24 UTCJun 22, 00:14 UTC50m
2026-06-21 NWK2771 - Jun 21, 02:15 UTCJun 21, 03:14 UTC1h 0m
2026-06-21 NWK2770 - Jun 21, 00:34 UTCJun 21, 01:25 UTC50m
2026-06-19 NWK2928 PER → PER Jun 19, 06:29 UTCJun 19, 10:19 UTC3h 50m
2026-06-18 NWK2761 PER → PER Jun 18, 21:10 UTCJun 19, 01:39 UTC4h 29m
2026-06-18 NWK2773 - Jun 18, 08:45 UTCJun 18, 09:45 UTC1h 0m
2026-06-18 NWK2772 - Jun 18, 06:45 UTCJun 18, 07:35 UTC50m
2026-06-17 NWK2771 - Jun 17, 23:45 UTCJun 18, 00:45 UTC1h 0m
2026-06-17 NWK2770 - Jun 17, 21:55 UTCJun 17, 22:45 UTC50m
2026-06-17 NWK2773 - Jun 17, 08:35 UTCJun 17, 09:45 UTC1h 10m
2026-06-17 NWK2772 - Jun 17, 06:40 UTCJun 17, 07:30 UTC50m
2026-06-16 NWK2771 - Jun 16, 23:50 UTCJun 17, 00:50 UTC1h 0m
2026-06-16 NWK2770 - Jun 16, 21:45 UTCJun 16, 22:30 UTC45m
2026-06-16 NWK1613 - Jun 16, 03:10 UTCJun 16, 03:50 UTC40m
2026-06-15 NWK1612 - Jun 15, 23:19 UTCJun 15, 23:50 UTC30m
2026-06-14 NWK2908 PER → PER Jun 14, 22:05 UTCJun 15, 02:30 UTC4h 25m
2026-06-12 NWK6235 - Jun 12, 09:00 UTCJun 12, 09:35 UTC35m
2026-06-11 NWK2956 - Jun 11, 03:20 UTCJun 11, 03:55 UTC35m
2026-06-06 NWK2952 PER → PER Jun 6, 22:15 UTCJun 7, 11:50 UTC13h 35m
2026-06-05 NWK2950 PER → PER Jun 5, 23:10 UTCJun 6, 10:25 UTC11h 15m
2026-06-05 NWK1611 KGI → PER Jun 5, 11:15 UTCJun 5, 12:15 UTC1h 0m
2026-06-05 NWK1610 PER → KGI Jun 5, 09:20 UTCJun 5, 10:10 UTC50m
2026-06-04 NWK1772 PER → PER Jun 4, 22:55 UTCJun 5, 08:25 UTC9h 30m
2026-06-04 NWK1650 PER → PER Jun 4, 07:55 UTCJun 4, 12:45 UTC4h 50m
2026-06-04 NWK1600 PER → PER Jun 4, 00:10 UTCJun 4, 05:25 UTC5h 15m
2026-05-28 NWK2773 - May 28, 08:45 UTCMay 28, 10:05 UTC1h 20m
2026-05-28 NWK2772 - May 28, 06:45 UTCMay 28, 07:30 UTC45m
2026-05-27 NWK2771 - May 27, 23:20 UTCMay 28, 00:35 UTC1h 15m
2026-05-27 NWK2770 - May 27, 21:45 UTCMay 27, 22:30 UTC45m
2026-05-27 NWK2773 - May 27, 08:40 UTCMay 27, 10:15 UTC1h 35m
2026-05-27 NWK2772 - May 27, 06:34 UTCMay 27, 07:20 UTC46m
2026-05-26 NWK2771 - May 26, 23:45 UTCMay 27, 00:55 UTC1h 10m
2026-05-26 NWK2770 - May 26, 21:55 UTCMay 26, 22:39 UTC45m
2026-05-20 NWK2773 - May 20, 08:30 UTCMay 20, 09:35 UTC1h 5m

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

Mode-S 7C4400 frequently asked

What is Mode-S code 7C4400?
7C4400 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NPU.
Where is Mode-S 7C4400 registered?
Mode-S code 7C4400 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4400 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 7C4400, octal 37042000, decimal 8,143,872.
What flights does 7C4400 operate?
Mode-S 7C4400 has broadcast 20 distinct callsigns, including NWK2771, NWK2770, NWK2773, NWK2772, NWK1615.