Apparatus

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sensors Mode-S transponder

7C4319

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C4319
Octal
37041431
Decimal
8,143,641
Country
AU
Tail
VH-NJF
Type
B463
No current signal · last broadcast 1d ago
Flights observed
115
Distinct callsigns
13
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C4319.

Country allocation

The ICAO 24-bit address 7C4319 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 13 distinct

Callsign Airline Flights Last seen
JTE7487 National Jet Express 13 2026-05-28
JTE7486 National Jet Express 12 2026-05-28
JTE7489 National Jet Express 11 2026-05-28
JTE7454 National Jet Express 11 2026-04-22
JTE7448 National Jet Express 11 2026-05-25
JTE7488 National Jet Express 9 2026-05-27
JTE7434 National Jet Express 9 2026-04-22
JTE7484 National Jet Express 8 2026-05-25
JTE7445 - 8 2026-04-22
JTE7443 National Jet Express 8 2026-04-21
JTE7440 National Jet Express 7 2026-05-25
JTE7404 National Jet Express 7 2026-05-25
JTE501 National Jet Express 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 JTE7489 MEL → ADL May 28, 18:25 UTCMay 28, 19:40 UTC1h 15m
2026-05-28 JTE7487 MEL → SYD May 28, 15:40 UTCMay 28, 16:20 UTC40m
2026-05-28 JTE7487 MEL → SYD May 28, 13:55 UTCMay 28, 15:35 UTC1h 40m
2026-05-28 JTE7486 ADL → MEL May 28, 12:00 UTCMay 28, 13:40 UTC1h 40m
2026-05-27 JTE7489 MEL → ADL May 27, 17:10 UTCMay 27, 18:15 UTC1h 5m
2026-05-27 JTE7488 SYD → MEL May 27, 15:05 UTCMay 27, 16:20 UTC1h 15m
2026-05-27 JTE7487 MEL → SYD May 27, 12:50 UTCMay 27, 14:10 UTC1h 20m
2026-05-27 JTE7486 ADL → MEL May 27, 10:55 UTCMay 27, 12:45 UTC1h 50m
2026-05-26 JTE7489 MEL → ADL May 26, 17:09 UTCMay 26, 18:14 UTC1h 5m
2026-05-26 JTE7488 SYD → MEL May 26, 15:05 UTCMay 26, 16:24 UTC1h 20m
2026-05-26 JTE7487 MEL → SYD May 26, 12:45 UTCMay 26, 14:05 UTC1h 20m
2026-05-26 JTE7486 ADL → MEL May 26, 10:54 UTCMay 26, 12:05 UTC1h 10m
2026-05-25 JTE7448 SYD → ADL May 25, 20:19 UTCMay 25, 20:45 UTC25m
2026-05-25 JTE7448 SYD → ADL May 25, 18:50 UTCMay 25, 19:25 UTC34m
2026-05-25 JTE7404 BNE → SYD May 25, 16:35 UTCMay 25, 17:50 UTC1h 15m
2026-05-25 JTE7440 SYD → BNE May 25, 14:05 UTCMay 25, 15:30 UTC1h 25m
2026-05-25 JTE7484 ADL → SYD May 25, 11:25 UTCMay 25, 13:20 UTC1h 55m
2026-05-20 JTE7489 MEL → ADL May 20, 16:45 UTCMay 20, 17:55 UTC1h 10m
2026-05-20 JTE7488 SYD → MEL May 20, 14:45 UTCMay 20, 16:15 UTC1h 30m
2026-05-20 JTE7487 MEL → SYD May 20, 12:40 UTCMay 20, 13:55 UTC1h 15m
2026-05-20 JTE7486 ADL → MEL May 20, 10:45 UTCMay 20, 11:50 UTC1h 5m
2026-05-19 JTE7448 SYD → ADL May 19, 18:45 UTCMay 19, 20:45 UTC2h 0m
2026-05-19 JTE7404 BNE → SYD May 19, 16:50 UTCMay 19, 18:10 UTC1h 20m
2026-05-19 JTE7440 SYD → BNE May 19, 14:15 UTCMay 19, 15:35 UTC1h 20m
2026-05-19 JTE7484 ADL → SYD May 19, 12:40 UTCMay 19, 13:15 UTC35m
2026-05-19 JTE7484 ADL → SYD May 19, 11:30 UTCMay 19, 11:50 UTC20m
2026-05-18 JTE7489 MEL → ADL May 18, 17:15 UTCMay 18, 18:30 UTC1h 14m
2026-05-18 JTE7488 SYD → MEL May 18, 15:00 UTCMay 18, 16:20 UTC1h 20m
2026-05-18 JTE7487 MEL → SYD May 18, 12:50 UTCMay 18, 14:10 UTC1h 20m
2026-05-18 JTE7486 ADL → MEL May 18, 10:50 UTCMay 18, 12:00 UTC1h 10m
2026-05-14 JTE7489 MEL → ADL May 14, 16:50 UTCMay 14, 18:00 UTC1h 10m
2026-05-14 JTE7488 SYD → MEL May 14, 14:45 UTCMay 14, 15:55 UTC1h 10m
2026-05-14 JTE7487 MEL → SYD May 14, 12:45 UTCMay 14, 14:05 UTC1h 20m
2026-05-14 JTE7486 ADL → MEL May 14, 10:50 UTCMay 14, 12:00 UTC1h 10m
2026-05-13 JTE7489 MEL → ADL May 13, 16:45 UTCMay 13, 17:55 UTC1h 10m
2026-05-13 JTE7488 SYD → MEL May 13, 14:35 UTCMay 13, 15:45 UTC1h 10m
2026-05-13 JTE7487 MEL → SYD May 13, 12:40 UTCMay 13, 14:00 UTC1h 20m
2026-05-13 JTE7486 ADL → MEL May 13, 10:50 UTCMay 13, 12:30 UTC1h 40m
2026-05-12 JTE7489 MEL → ADL May 12, 16:50 UTCMay 12, 18:00 UTC1h 10m
2026-05-12 JTE7487 MEL → SYD May 12, 13:00 UTCMay 12, 16:10 UTC3h 10m
2026-05-12 JTE7486 ADL → MEL May 12, 11:00 UTCMay 12, 12:15 UTC1h 15m
2026-05-07 JTE7448 SYD → ADL May 7, 20:00 UTCMay 7, 20:20 UTC20m
2026-05-07 JTE7448 SYD → ADL May 7, 18:30 UTCMay 7, 19:05 UTC35m
2026-05-07 JTE7404 BNE → SYD May 7, 16:35 UTCMay 7, 17:55 UTC1h 20m
2026-05-07 JTE7440 SYD → BNE May 7, 14:05 UTCMay 7, 15:35 UTC1h 30m
2026-05-07 JTE7484 ADL → SYD May 7, 11:30 UTCMay 7, 13:55 UTC2h 25m
2026-05-06 JTE7448 SYD → ADL May 6, 20:45 UTCMay 6, 21:15 UTC30m
2026-05-06 JTE7448 SYD → ADL May 6, 19:10 UTCMay 6, 19:45 UTC35m
2026-05-06 JTE7404 BNE → SYD May 6, 17:05 UTCMay 6, 18:25 UTC1h 19m
2026-05-06 JTE7440 SYD → BNE May 6, 14:10 UTCMay 6, 15:45 UTC1h 35m

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

Mode-S 7C4319 frequently asked

What is Mode-S code 7C4319?
7C4319 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NJF.
Where is Mode-S 7C4319 registered?
Mode-S code 7C4319 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4319 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 7C4319, octal 37041431, decimal 8,143,641.
What flights does 7C4319 operate?
Mode-S 7C4319 has broadcast 13 distinct callsigns, including JTE7487, JTE7486, JTE7489, JTE7454, JTE7448.