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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 Jul 23, 18:15 UTC
Flights observed
226
Distinct callsigns
17
Country
AU
Last broadcast
Jul 23, 18:15 UTC

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 17 distinct

Callsign Airline Flights Last seen
JTE7454 National Jet Express 25 2026-07-22
JTE7434 National Jet Express 23 2026-07-22
JTE7448 - 22 2026-07-22
JTE7445 National Jet Express 22 2026-07-22
JTE7443 - 20 2026-07-21
JTE7487 National Jet Express 18 2026-07-23
JTE7484 - 18 2026-06-23
JTE7486 National Jet Express 17 2026-07-23
JTE7489 National Jet Express 16 2026-07-23
JTE7488 National Jet Express 14 2026-07-23
JTE7404 National Jet Express 13 2026-06-23
JTE7440 National Jet Express 12 2026-06-23
JTE501 - 2 2026-06-24
JTE7485 - 1 2026-06-16
JTE7441 National Jet Express 1 2026-06-10
JTE7431 - 1 2026-07-06
JTE7430 - 1 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 JTE7489 MEL → ADL Jul 23, 17:00 UTCJul 23, 18:15 UTC1h 15m
2026-07-23 JTE7488 SYD → MEL Jul 23, 14:50 UTCJul 23, 16:15 UTC1h 25m
2026-07-23 JTE7487 MEL → SYD Jul 23, 12:50 UTCJul 23, 14:00 UTC1h 10m
2026-07-23 JTE7486 ADL → MEL Jul 23, 10:55 UTCJul 23, 12:10 UTC1h 15m
2026-07-22 JTE7448 - Jul 22, 20:05 UTCJul 22, 20:25 UTC20m
2026-07-22 JTE7448 - Jul 22, 18:20 UTCJul 22, 18:55 UTC35m
2026-07-22 JTE7454 MEL → SYD Jul 22, 16:10 UTCJul 22, 17:20 UTC1h 10m
2026-07-22 JTE7445 SYD → MEL Jul 22, 13:50 UTCJul 22, 15:15 UTC1h 25m
2026-07-22 JTE7434 OOL → SYD Jul 22, 11:50 UTCJul 22, 13:40 UTC1h 50m
2026-07-21 JTE7443 - Jul 21, 18:45 UTCJul 21, 20:00 UTC1h 15m
2026-07-21 JTE7454 MEL → SYD Jul 21, 15:55 UTCJul 21, 17:05 UTC1h 10m
2026-07-21 JTE7445 SYD → MEL Jul 21, 13:50 UTCJul 21, 15:10 UTC1h 20m
2026-07-21 JTE7434 OOL → SYD Jul 21, 11:40 UTCJul 21, 13:00 UTC1h 20m
2026-07-20 JTE7443 - Jul 20, 18:50 UTCJul 20, 20:05 UTC1h 15m
2026-07-20 JTE7454 MEL → SYD Jul 20, 16:15 UTCJul 20, 17:25 UTC1h 10m
2026-07-20 JTE7445 SYD → MEL Jul 20, 13:50 UTCJul 20, 15:10 UTC1h 20m
2026-07-20 JTE7434 OOL → SYD Jul 20, 11:45 UTCJul 20, 13:00 UTC1h 15m
2026-07-16 JTE7443 - Jul 16, 18:55 UTCJul 16, 20:09 UTC1h 15m
2026-07-16 JTE7454 MEL → SYD Jul 16, 16:15 UTCJul 16, 17:30 UTC1h 15m
2026-07-16 JTE7445 SYD → MEL Jul 16, 13:49 UTCJul 16, 15:05 UTC1h 15m
2026-07-16 JTE7434 OOL → SYD Jul 16, 11:50 UTCJul 16, 13:10 UTC1h 20m
2026-07-15 JTE7443 - Jul 15, 18:50 UTCJul 15, 20:00 UTC1h 10m
2026-07-15 JTE7454 MEL → SYD Jul 15, 16:00 UTCJul 15, 17:15 UTC1h 15m
2026-07-15 JTE7445 SYD → MEL Jul 15, 13:50 UTCJul 15, 15:05 UTC1h 15m
2026-07-15 JTE7434 OOL → SYD Jul 15, 11:50 UTCJul 15, 13:05 UTC1h 15m
2026-07-14 JTE7443 - Jul 14, 18:50 UTCJul 14, 20:05 UTC1h 15m
2026-07-14 JTE7454 MEL → SYD Jul 14, 16:25 UTCJul 14, 17:35 UTC1h 10m
2026-07-14 JTE7445 SYD → MEL Jul 14, 13:50 UTCJul 14, 15:10 UTC1h 20m
2026-07-14 JTE7434 OOL → SYD Jul 14, 11:50 UTCJul 14, 13:00 UTC1h 10m
2026-07-13 JTE7443 - Jul 13, 18:50 UTCJul 13, 20:05 UTC1h 15m
2026-07-13 JTE7454 MEL → SYD Jul 13, 16:30 UTCJul 13, 17:35 UTC1h 5m
2026-07-13 JTE7445 SYD → MEL Jul 13, 13:55 UTCJul 13, 15:20 UTC1h 25m
2026-07-13 JTE7434 OOL → SYD Jul 13, 11:45 UTCJul 13, 13:05 UTC1h 20m
2026-07-09 JTE7443 - Jul 9, 18:50 UTCJul 9, 20:05 UTC1h 15m
2026-07-09 JTE7454 MEL → SYD Jul 9, 16:00 UTCJul 9, 17:10 UTC1h 10m
2026-07-09 JTE7445 SYD → MEL Jul 9, 13:55 UTCJul 9, 15:15 UTC1h 20m
2026-07-09 JTE7434 OOL → SYD Jul 9, 11:50 UTCJul 9, 13:05 UTC1h 15m
2026-07-09 JTE7443 - Jul 9, 08:45 UTCJul 9, 09:55 UTC1h 10m
2026-07-08 JTE7454 MEL → SYD Jul 8, 16:05 UTCJul 8, 17:15 UTC1h 10m
2026-07-08 JTE7445 SYD → MEL Jul 8, 13:45 UTCJul 8, 15:05 UTC1h 20m
2026-07-08 JTE7434 OOL → SYD Jul 8, 11:40 UTCJul 8, 13:00 UTC1h 20m
2026-07-07 JTE7443 - Jul 7, 18:50 UTCJul 7, 20:05 UTC1h 15m
2026-07-07 JTE7454 MEL → SYD Jul 7, 16:35 UTCJul 7, 17:50 UTC1h 15m
2026-07-07 JTE7445 SYD → MEL Jul 7, 14:10 UTCJul 7, 15:30 UTC1h 20m
2026-07-07 JTE7434 OOL → SYD Jul 7, 12:05 UTCJul 7, 13:25 UTC1h 20m
2026-07-06 JTE7431 - Jul 6, 18:00 UTCJul 6, 20:00 UTC2h 0m
2026-07-06 JTE7430 - Jul 6, 11:40 UTCJul 6, 13:55 UTC2h 15m
2026-06-30 JTE7443 - Jun 30, 18:50 UTCJun 30, 20:05 UTC1h 15m
2026-06-30 JTE7454 MEL → SYD Jun 30, 16:55 UTCJun 30, 18:05 UTC1h 10m
2026-06-30 JTE7445 SYD → MEL Jun 30, 14:00 UTCJun 30, 15:20 UTC1h 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-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 Jul 23, 18:15 UTC.
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 17 distinct callsigns, including JTE7454, JTE7434, JTE7448, JTE7445, JTE7443.