Apparatus

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sensors Mode-S transponder

7C4320

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C4320
Octal
37041440
Decimal
8,143,648
Country
AU
Tail
VH-NJM
Type
B463
No current signal · last broadcast 1d ago
Flights observed
109
Distinct callsigns
16
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C4320.

Country allocation

The ICAO 24-bit address 7C4320 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 16 distinct

Callsign Airline Flights Last seen
JTE7445 National Jet Express 19 2026-05-28
JTE7454 National Jet Express 18 2026-05-28
JTE7434 National Jet Express 18 2026-05-28
JTE7443 National Jet Express 17 2026-05-27
JTE7488 - 8 2026-04-21
JTE7489 - 6 2026-04-21
JTE7487 National Jet Express 5 2026-04-21
JTE7486 National Jet Express 5 2026-04-21
JTE7484 National Jet Express 2 2026-04-22
JTE7448 National Jet Express 2 2026-04-16
JTE7440 - 2 2026-04-22
JTE7404 National Jet Express 2 2026-04-22
JTE501 National Jet Express 2 2026-05-07
JTE7444 National Jet Express 1 2026-05-21
JTE7441 - 1 2026-05-21
JTE502 National Jet Express 1 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 JTE7454 MEL → SYD May 28, 16:20 UTCMay 28, 18:30 UTC2h 10m
2026-05-28 JTE7445 SYD → MEL May 28, 14:15 UTCMay 28, 15:25 UTC1h 10m
2026-05-28 JTE7434 OOL → SYD May 28, 11:50 UTCMay 28, 13:10 UTC1h 20m
2026-05-27 JTE7443 SYD → OOL May 27, 18:45 UTCMay 27, 20:05 UTC1h 20m
2026-05-27 JTE7454 MEL → SYD May 27, 15:55 UTCMay 27, 17:15 UTC1h 20m
2026-05-27 JTE7445 SYD → MEL May 27, 13:45 UTCMay 27, 15:00 UTC1h 15m
2026-05-27 JTE7434 OOL → SYD May 27, 11:45 UTCMay 27, 12:55 UTC1h 10m
2026-05-26 JTE7454 MEL → SYD May 26, 17:25 UTCMay 26, 19:55 UTC2h 30m
2026-05-26 JTE7445 SYD → MEL May 26, 13:40 UTCMay 26, 14:55 UTC1h 15m
2026-05-26 JTE7434 OOL → SYD May 26, 11:44 UTCMay 26, 12:54 UTC1h 10m
2026-05-25 JTE7443 SYD → OOL May 25, 18:45 UTCMay 25, 20:04 UTC1h 19m
2026-05-25 JTE7454 MEL → SYD May 25, 16:20 UTCMay 25, 17:40 UTC1h 20m
2026-05-25 JTE7445 SYD → MEL May 25, 14:00 UTCMay 25, 15:25 UTC1h 25m
2026-05-25 JTE7434 OOL → SYD May 25, 12:00 UTCMay 25, 13:15 UTC1h 15m
2026-05-21 JTE7444 BNE → ADL May 21, 18:00 UTCMay 21, 20:05 UTC2h 5m
2026-05-21 JTE7441 - May 21, 12:30 UTCMay 21, 14:45 UTC2h 15m
2026-05-20 JTE7443 SYD → OOL May 20, 18:50 UTCMay 20, 20:00 UTC1h 10m
2026-05-20 JTE7454 MEL → SYD May 20, 16:15 UTCMay 20, 17:20 UTC1h 5m
2026-05-20 JTE7445 SYD → MEL May 20, 13:50 UTCMay 20, 15:10 UTC1h 20m
2026-05-20 JTE7434 OOL → SYD May 20, 11:50 UTCMay 20, 13:45 UTC1h 55m
2026-05-19 JTE7443 SYD → OOL May 19, 18:55 UTCMay 19, 20:05 UTC1h 10m
2026-05-19 JTE7454 MEL → SYD May 19, 16:25 UTCMay 19, 17:40 UTC1h 15m
2026-05-19 JTE7445 SYD → MEL May 19, 13:45 UTCMay 19, 15:05 UTC1h 20m
2026-05-19 JTE7434 OOL → SYD May 19, 11:50 UTCMay 19, 13:05 UTC1h 15m
2026-05-18 JTE7443 SYD → OOL May 18, 18:55 UTCMay 18, 20:05 UTC1h 10m
2026-05-18 JTE7454 MEL → SYD May 18, 16:35 UTCMay 18, 17:50 UTC1h 15m
2026-05-18 JTE7445 SYD → MEL May 18, 14:05 UTCMay 18, 15:20 UTC1h 15m
2026-05-18 JTE7434 OOL → SYD May 18, 11:55 UTCMay 18, 13:15 UTC1h 20m
2026-05-14 JTE7443 SYD → OOL May 14, 18:50 UTCMay 14, 20:05 UTC1h 15m
2026-05-14 JTE7454 MEL → SYD May 14, 15:45 UTCMay 14, 17:00 UTC1h 15m
2026-05-14 JTE7445 SYD → MEL May 14, 13:35 UTCMay 14, 14:45 UTC1h 10m
2026-05-14 JTE7434 OOL → SYD May 14, 11:40 UTCMay 14, 12:55 UTC1h 15m
2026-05-13 JTE7443 SYD → OOL May 13, 18:45 UTCMay 13, 20:05 UTC1h 20m
2026-05-13 JTE7454 MEL → SYD May 13, 15:55 UTCMay 13, 17:15 UTC1h 20m
2026-05-13 JTE7445 SYD → MEL May 13, 13:40 UTCMay 13, 14:51 UTC1h 10m
2026-05-13 JTE7434 OOL → SYD May 13, 11:45 UTCMay 13, 13:00 UTC1h 15m
2026-05-12 JTE7443 SYD → OOL May 12, 18:40 UTCMay 12, 20:05 UTC1h 25m
2026-05-12 JTE7454 MEL → SYD May 12, 16:05 UTCMay 12, 17:30 UTC1h 25m
2026-05-12 JTE7445 SYD → MEL May 12, 13:40 UTCMay 12, 14:55 UTC1h 15m
2026-05-12 JTE7434 OOL → SYD May 12, 11:45 UTCMay 12, 13:00 UTC1h 15m
2026-05-11 JTE7443 SYD → OOL May 11, 18:45 UTCMay 11, 20:00 UTC1h 15m
2026-05-11 JTE7454 MEL → SYD May 11, 16:15 UTCMay 11, 17:30 UTC1h 16m
2026-05-11 JTE7445 SYD → MEL May 11, 13:45 UTCMay 11, 15:00 UTC1h 15m
2026-05-11 JTE7434 OOL → SYD May 11, 11:50 UTCMay 11, 13:05 UTC1h 15m
2026-05-10 JTE502 ADL → ADL May 10, 08:35 UTCMay 10, 11:05 UTC2h 30m
2026-05-07 JTE501 MEL → ADL May 7, 11:15 UTCMay 7, 11:55 UTC40m
2026-05-07 JTE501 MEL → ADL May 7, 06:00 UTCMay 7, 07:30 UTC1h 30m
2026-05-05 JTE7443 SYD → OOL May 5, 18:40 UTCMay 5, 20:10 UTC1h 30m
2026-05-05 JTE7454 MEL → SYD May 5, 16:15 UTCMay 5, 17:25 UTC1h 10m
2026-05-05 JTE7445 SYD → MEL May 5, 14:20 UTCMay 5, 14:55 UTC35m

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

Mode-S 7C4320 frequently asked

What is Mode-S code 7C4320?
7C4320 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NJM.
Where is Mode-S 7C4320 registered?
Mode-S code 7C4320 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4320 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 7C4320, octal 37041440, decimal 8,143,648.
What flights does 7C4320 operate?
Mode-S 7C4320 has broadcast 16 distinct callsigns, including JTE7445, JTE7454, JTE7434, JTE7443, JTE7488.