Apparatus

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sensors Mode-S transponder

7C431C

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-NJI · BRITISH AEROSPACE 146-300 · operated by NATIONAL JET EXPRESS PTY LTD

Hex
7C431C
Octal
37041434
Decimal
8,143,644
Country
AU
Tail
VH-NJI
Type
B463
No current signal · last broadcast 20h ago
Flights observed
135
Distinct callsigns
11
Country
AU
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 7C431C.

Country allocation

The ICAO 24-bit address 7C431C 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 11 distinct

Callsign Airline Flights Last seen
JTE7484 National Jet Express 28 2026-05-28
JTE7448 National Jet Express 25 2026-05-27
JTE7440 National Jet Express 20 2026-05-27
JTE7404 National Jet Express 20 2026-05-27
JTE7488 National Jet Express 10 2026-05-25
JTE7487 National Jet Express 10 2026-05-25
JTE7486 National Jet Express 10 2026-05-25
JTE7489 National Jet Express 9 2026-05-26
JTE7442 National Jet Express 1 2026-05-27
JTE7441 National Jet Express 1 2026-05-27
JTE7408 National Jet Express 1 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JTE7408 BNE → ADL May 29, 06:55 UTCMay 29, 09:35 UTC2h 40m
2026-05-28 JTE7484 ADL → SYD May 28, 12:55 UTCMay 28, 15:00 UTC2h 5m
2026-05-28 JTE7484 ADL → SYD May 28, 11:50 UTCMay 28, 12:50 UTC1h 0m
2026-05-27 JTE7448 SYD → ADL May 27, 20:50 UTCMay 27, 22:45 UTC1h 55m
2026-05-27 JTE7404 BNE → SYD May 27, 18:10 UTCMay 27, 19:25 UTC1h 15m
2026-05-27 JTE7440 SYD → BNE May 27, 15:55 UTCMay 27, 17:20 UTC1h 25m
2026-05-27 JTE7484 ADL → SYD May 27, 14:10 UTCMay 27, 15:00 UTC50m
2026-05-27 JTE7484 ADL → SYD May 27, 13:00 UTCMay 27, 14:05 UTC1h 5m
2026-05-27 JTE7441 SYD → ADL May 27, 10:20 UTCMay 27, 12:10 UTC1h 50m
2026-05-27 JTE7442 BNE → SYD May 27, 07:50 UTCMay 27, 09:10 UTC1h 20m
2026-05-26 JTE7404 BNE → SYD May 26, 16:55 UTCMay 26, 19:34 UTC2h 40m
2026-05-26 JTE7440 SYD → BNE May 26, 14:05 UTCMay 26, 15:29 UTC1h 25m
2026-05-26 JTE7484 ADL → SYD May 26, 12:35 UTCMay 26, 13:19 UTC45m
2026-05-26 JTE7484 ADL → SYD May 26, 11:24 UTCMay 26, 12:30 UTC1h 5m
2026-05-26 JTE7489 MEL → ADL May 26, 08:59 UTCMay 26, 09:59 UTC1h 0m
2026-05-25 JTE7488 SYD → MEL May 25, 14:50 UTCMay 25, 16:00 UTC1h 10m
2026-05-25 JTE7487 MEL → SYD May 25, 12:45 UTCMay 25, 14:00 UTC1h 15m
2026-05-25 JTE7486 ADL → MEL May 25, 10:50 UTCMay 25, 11:50 UTC1h 0m
2026-05-21 JTE7448 SYD → ADL May 21, 19:45 UTCMay 21, 21:40 UTC1h 55m
2026-05-21 JTE7404 BNE → SYD May 21, 17:35 UTCMay 21, 18:50 UTC1h 15m
2026-05-21 JTE7440 SYD → BNE May 21, 15:20 UTCMay 21, 16:35 UTC1h 15m
2026-05-21 JTE7484 ADL → SYD May 21, 12:10 UTCMay 21, 12:55 UTC45m
2026-05-21 JTE7484 ADL → SYD May 21, 11:10 UTCMay 21, 11:30 UTC20m
2026-05-20 JTE7448 SYD → ADL May 20, 19:05 UTCMay 20, 21:00 UTC1h 55m
2026-05-20 JTE7404 BNE → SYD May 20, 16:40 UTCMay 20, 18:10 UTC1h 30m
2026-05-20 JTE7440 SYD → BNE May 20, 13:55 UTCMay 20, 15:15 UTC1h 20m
2026-05-20 JTE7484 ADL → SYD May 20, 11:20 UTCMay 20, 13:05 UTC1h 45m
2026-05-19 JTE7489 MEL → ADL May 19, 17:00 UTCMay 19, 18:05 UTC1h 5m
2026-05-19 JTE7488 SYD → MEL May 19, 14:50 UTCMay 19, 16:00 UTC1h 10m
2026-05-19 JTE7487 MEL → SYD May 19, 12:50 UTCMay 19, 13:55 UTC1h 5m
2026-05-19 JTE7486 ADL → MEL May 19, 10:55 UTCMay 19, 12:00 UTC1h 5m
2026-05-18 JTE7448 SYD → ADL May 18, 20:25 UTCMay 18, 20:50 UTC25m
2026-05-18 JTE7448 SYD → ADL May 18, 18:55 UTCMay 18, 19:35 UTC40m
2026-05-18 JTE7404 BNE → SYD May 18, 16:50 UTCMay 18, 18:10 UTC1h 20m
2026-05-18 JTE7440 SYD → BNE May 18, 14:30 UTCMay 18, 15:55 UTC1h 25m
2026-05-18 JTE7484 ADL → SYD May 18, 11:40 UTCMay 18, 13:30 UTC1h 50m
2026-05-14 JTE7448 SYD → ADL May 14, 18:50 UTCMay 14, 20:55 UTC2h 5m
2026-05-14 JTE7404 BNE → SYD May 14, 16:50 UTCMay 14, 18:10 UTC1h 20m
2026-05-14 JTE7440 SYD → BNE May 14, 14:01 UTCMay 14, 15:30 UTC1h 30m
2026-05-14 JTE7484 ADL → SYD May 14, 11:15 UTCMay 14, 13:05 UTC1h 50m
2026-05-13 JTE7448 SYD → ADL May 13, 20:10 UTCMay 13, 20:35 UTC25m
2026-05-13 JTE7448 SYD → ADL May 13, 18:45 UTCMay 13, 19:15 UTC30m
2026-05-13 JTE7404 BNE → SYD May 13, 16:40 UTCMay 13, 18:00 UTC1h 20m
2026-05-13 JTE7440 SYD → BNE May 13, 14:15 UTCMay 13, 15:35 UTC1h 20m
2026-05-13 JTE7484 ADL → SYD May 13, 11:15 UTCMay 13, 13:15 UTC2h 0m
2026-05-12 JTE7448 SYD → ADL May 12, 20:01 UTCMay 12, 20:25 UTC25m
2026-05-12 JTE7448 SYD → ADL May 12, 18:35 UTCMay 12, 19:10 UTC35m
2026-05-12 JTE7404 BNE → SYD May 12, 16:35 UTCMay 12, 17:55 UTC1h 20m
2026-05-12 JTE7440 SYD → BNE May 12, 14:05 UTCMay 12, 15:25 UTC1h 20m
2026-05-12 JTE7484 ADL → SYD May 12, 12:40 UTCMay 12, 13:25 UTC45m

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

Mode-S 7C431C frequently asked

What is Mode-S code 7C431C?
7C431C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NJI.
Where is Mode-S 7C431C registered?
Mode-S code 7C431C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C431C broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C431C, octal 37041434, decimal 8,143,644.
What flights does 7C431C operate?
Mode-S 7C431C has broadcast 11 distinct callsigns, including JTE7484, JTE7448, JTE7440, JTE7404, JTE7488.