Apparatus

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sensors Mode-S transponder

7C683D

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-UVJ · AIRBUS A-320 · operated by NETWORK AVIATION PTY LTD

Hex
7C683D
Octal
37064075
Decimal
8,153,149
Country
AU
Tail
VH-UVJ
Type
A320
No current signal · last broadcast 2d ago
Flights observed
88
Distinct callsigns
20
Country
AU
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 7C683D.

Country allocation

The ICAO 24-bit address 7C683D 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
NWK1644 - 5 2026-05-26
NWK2927 - 3 2026-04-16
NWK2926 - 3 2026-04-16
NWK1736 - 3 2026-05-17
NWK1729 - 3 2026-05-01
NWK1708 - 3 2026-05-12
NWK1703 - 3 2026-05-25
NWK1638 - 3 2026-05-20
NWK1609 - 3 2026-04-24
NWK2981 - 2 2026-04-16
NWK2931 - 2 2026-05-25
NWK2924 - 2 2026-05-19
NWK2904 - 2 2026-04-28
NWK1730 - 2 2026-05-20
NWK1728 - 2 2026-05-10
NWK1710 - 2 2026-05-21
NWK1654 - 2 2026-05-18
NWK1653 - 2 2026-04-23
NWK1620 - 2 2026-05-13
NWK1616 - 2 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 NWK2916 PER → PER May 26, 21:49 UTCMay 27, 02:14 UTC4h 25m
2026-05-26 NWK1644 PER → PER May 26, 05:20 UTCMay 26, 10:10 UTC4h 50m
2026-05-25 NWK2931 PER → PER May 25, 22:15 UTCMay 26, 03:15 UTC5h 0m
2026-05-25 NWK1646 PER → PER May 25, 06:35 UTCMay 25, 11:15 UTC4h 40m
2026-05-25 NWK1703 - May 25, 01:55 UTCMay 25, 02:30 UTC35m
2026-05-22 NWK1644 PER → PER May 22, 05:25 UTCMay 22, 10:30 UTC5h 5m
2026-05-21 NWK1616 PER → PER May 21, 22:20 UTCMay 22, 02:20 UTC4h 0m
2026-05-21 NWK1710 PER → PER May 21, 06:55 UTCMay 21, 11:00 UTC4h 5m
2026-05-20 NWK1638 PER → PER May 20, 21:45 UTCMay 21, 02:40 UTC4h 55m
2026-05-20 NWK1712 PER → PER May 20, 08:55 UTCMay 20, 12:25 UTC3h 30m
2026-05-20 NWK1730 PER → PER May 20, 03:05 UTCMay 20, 07:50 UTC4h 46m
2026-05-19 NWK2924 PER → PER May 19, 21:20 UTCMay 20, 01:45 UTC4h 25m
2026-05-19 NWK2966 PER → PER May 19, 04:40 UTCMay 19, 08:40 UTC4h 0m
2026-05-18 NWK2930 PER → PER May 18, 22:20 UTCMay 19, 03:00 UTC4h 40m
2026-05-18 NWK1654 PER → PER May 18, 03:01 UTCMay 18, 08:30 UTC5h 30m
2026-05-17 NWK1701 PER → PER May 17, 21:25 UTCMay 18, 01:25 UTC4h 0m
2026-05-17 NWK1736 PER → PER May 17, 08:45 UTCMay 17, 13:15 UTC4h 30m
2026-05-15 NWK1734 PER → PER May 15, 06:25 UTCMay 15, 10:40 UTC4h 15m
2026-05-14 NWK2991 PER → PER May 14, 09:35 UTCMay 15, 03:25 UTC17h 50m
2026-05-14 NWK1602 PER → PER May 14, 02:45 UTCMay 14, 07:50 UTC5h 5m
2026-05-14 NWK1607 KGI → PER May 14, 00:40 UTCMay 14, 01:40 UTC1h 0m
2026-05-13 NWK1606 PER → KGI May 13, 22:55 UTCMay 13, 23:45 UTC50m
2026-05-13 NWK1620 PER → PER May 13, 05:45 UTCMay 13, 09:40 UTC3h 55m
2026-05-12 NWK1638 PER → PER May 12, 21:55 UTCMay 13, 02:50 UTC4h 55m
2026-05-12 NWK1708 PER → PER May 12, 06:00 UTCMay 12, 09:55 UTC3h 55m
2026-05-12 NWK2751 - May 12, 02:55 UTCMay 12, 03:45 UTC50m
2026-05-11 NWK1644 PER → PER May 11, 05:35 UTCMay 11, 10:40 UTC5h 5m
2026-05-10 NWK1728 PER → PER May 10, 23:29 UTCMay 11, 04:15 UTC4h 45m
2026-05-08 NWK1705 PER → PER May 8, 23:10 UTCMay 9, 03:20 UTC4h 10m
2026-05-08 NWK1644 PER → PER May 8, 05:20 UTCMay 8, 10:35 UTC5h 15m
2026-05-07 NWK1703 PER → PER May 7, 22:20 UTCMay 8, 02:19 UTC4h 0m
2026-05-07 NWK2982 PER → PER May 7, 06:05 UTCMay 7, 11:00 UTC4h 55m
2026-05-07 NWK2921 - May 7, 01:35 UTCMay 7, 02:25 UTC50m
2026-05-06 NWK2920 - May 6, 22:00 UTCMay 6, 22:30 UTC30m
2026-05-06 NWK1654 PER → PER May 6, 03:10 UTCMay 6, 08:45 UTC5h 35m
2026-05-05 NWK2924 PER → PER May 5, 21:20 UTCMay 6, 01:50 UTC4h 30m
2026-05-05 NWK1655 PER → PER May 5, 02:55 UTCMay 5, 08:35 UTC5h 40m
2026-05-05 NWK1607 KGI → PER May 5, 00:30 UTCMay 5, 01:25 UTC55m
2026-05-04 NWK1606 PER → KGI May 4, 22:45 UTCMay 4, 23:35 UTC50m
2026-05-04 NWK1620 PER → PER May 4, 05:45 UTCMay 4, 09:20 UTC3h 35m
2026-05-03 NWK1638 PER → PER May 3, 21:54 UTCMay 4, 02:45 UTC4h 50m
2026-05-03 NWK1736 PER → PER May 3, 08:50 UTCMay 3, 13:10 UTC4h 20m
2026-05-01 NWK1729 PER → PER May 1, 23:25 UTCMay 2, 03:55 UTC4h 31m
2026-05-01 NWK1736 PER → PER May 1, 08:40 UTCMay 1, 13:10 UTC4h 30m
2026-04-30 NWK1644 PER → PER Apr 30, 05:20 UTCApr 30, 09:55 UTC4h 35m
2026-04-29 NWK1642 PER → PER Apr 29, 23:20 UTCApr 30, 04:20 UTC5h 0m
2026-04-29 NWK1708 PER → PER Apr 29, 05:50 UTCApr 29, 09:45 UTC3h 56m
2026-04-28 NWK2931 PER → PER Apr 28, 22:10 UTCApr 29, 02:50 UTC4h 40m
2026-04-28 NWK2904 PER → PER Apr 28, 06:35 UTCApr 28, 10:45 UTC4h 10m
2026-04-27 NWK2753 PER → PER Apr 27, 08:55 UTCApr 28, 02:15 UTC17h 20m

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

Mode-S 7C683D frequently asked

What is Mode-S code 7C683D?
7C683D is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-UVJ.
Where is Mode-S 7C683D registered?
Mode-S code 7C683D is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C683D broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C683D, octal 37064075, decimal 8,153,149.
What flights does 7C683D operate?
Mode-S 7C683D has broadcast 20 distinct callsigns, including NWK1644, NWK2927, NWK2926, NWK1736, NWK1729.