Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C390B

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-LJX · LEARJET 45 · operated by FLIGHT OPTIONS (AUSTRALIA) PTY LTD

Hex
7C390B
Octal
37034413
Decimal
8,141,067
Country
AU
Tail
VH-LJX
Type
LJ45
No current signal · last broadcast 6d ago
Flights observed
81
Distinct callsigns
2
Country
AU
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 7C390B.

Country allocation

The ICAO 24-bit address 7C390B 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 2 distinct

Callsign Airline Flights Last seen
LJX - 63 2026-07-11
VHLJX - 18 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 LJX - Jul 11, 09:05 UTCJul 11, 09:20 UTC15m
2026-07-11 LJX - Jul 11, 08:01 UTCJul 11, 08:35 UTC35m
2026-07-11 LJX - Jul 11, 01:10 UTCJul 11, 01:45 UTC35m
2026-07-10 LJX - Jul 10, 22:00 UTCJul 11, 00:30 UTC2h 30m
2026-07-10 LJX SYD → BNE Jul 10, 08:45 UTCJul 10, 09:55 UTC1h 10m
2026-07-09 VHLJX - Jul 9, 23:15 UTCJul 10, 07:40 UTC8h 25m
2026-07-09 LJX MCY → BNE Jul 9, 21:40 UTCJul 9, 22:00 UTC20m
2026-07-05 LJX - Jul 5, 07:25 UTCJul 5, 07:50 UTC25m
2026-07-05 VHLJX - Jul 5, 06:00 UTCJul 5, 06:45 UTC45m
2026-07-04 VHLJX - Jul 4, 23:05 UTCJul 4, 23:45 UTC40m
2026-07-04 LJX MCY → BNE Jul 4, 21:50 UTCJul 4, 22:05 UTC15m
2026-06-27 LJX SYD → MCY Jun 27, 11:59 UTCJun 27, 13:15 UTC1h 15m
2026-06-27 LJX - Jun 27, 09:15 UTCJun 27, 09:50 UTC35m
2026-06-26 LJX - Jun 26, 08:50 UTCJun 26, 10:10 UTC1h 20m
2026-06-26 LJX - Jun 26, 07:24 UTCJun 26, 07:39 UTC15m
2026-06-23 LJX - Jun 23, 19:04 UTCJun 23, 19:24 UTC20m
2026-06-23 LJX - Jun 23, 16:39 UTCJun 23, 18:39 UTC2h 0m
2026-06-23 LJX - Jun 23, 14:29 UTCJun 23, 15:04 UTC35m
2026-06-23 LJX - Jun 23, 06:15 UTCJun 23, 06:55 UTC40m
2026-06-23 LJX MCY → BNE Jun 23, 04:50 UTCJun 23, 05:04 UTC15m
2026-06-19 LJX - Jun 19, 22:24 UTCJun 20, 07:44 UTC9h 20m
2026-06-19 VHLJX MCY → BNE Jun 19, 21:24 UTCJun 19, 21:49 UTC25m
2026-06-14 VHLJX WLG → MCY Jun 14, 08:45 UTCJun 14, 12:10 UTC3h 25m
2026-06-14 VHLJX - Jun 14, 07:10 UTCJun 14, 07:25 UTC15m
2026-06-14 VHLJX - Jun 14, 04:20 UTCJun 14, 04:50 UTC30m
2026-06-14 LJX MCY → MEB Jun 14, 00:40 UTCJun 14, 02:50 UTC2h 10m
2026-06-12 LJX - Jun 12, 05:50 UTCJun 12, 06:15 UTC25m
2026-06-11 VHLJX - Jun 11, 10:40 UTCJun 11, 13:50 UTC3h 10m
2026-06-11 VHLJX - Jun 11, 05:55 UTCJun 11, 08:40 UTC2h 45m
2026-06-11 VHLJX - Jun 11, 04:00 UTCJun 11, 05:20 UTC1h 20m
2026-06-10 VHLJX - Jun 10, 08:50 UTCJun 11, 05:20 UTC20h 30m
2026-06-10 VHLJX - Jun 10, 07:35 UTCJun 11, 05:20 UTC21h 45m
2026-06-07 LJX - Jun 7, 11:55 UTCJun 7, 12:25 UTC30m
2026-06-06 VHLJX - Jun 6, 05:55 UTCJun 6, 06:05 UTC10m
2026-06-06 LJX - Jun 6, 00:40 UTCJun 6, 01:15 UTC35m
2026-06-01 LJX ADL → MCY Jun 1, 13:40 UTCJun 1, 15:35 UTC1h 55m
2026-06-01 LJX - Jun 1, 11:50 UTCJun 1, 12:20 UTC30m
2026-06-01 LJX - Jun 1, 09:00 UTCJun 1, 09:10 UTC10m
2026-06-01 LJX - Jun 1, 03:15 UTCJun 1, 03:50 UTC35m
2026-05-30 LJX - May 30, 05:05 UTCMay 30, 05:25 UTC20m
2026-05-30 LJX MEB → BNE May 30, 02:50 UTCMay 30, 04:40 UTC1h 50m
2026-05-29 LJX - May 29, 11:00 UTCMay 29, 12:05 UTC1h 5m
2026-05-28 VHLJX - May 28, 23:35 UTCMay 29, 10:30 UTC10h 55m
2026-05-28 LJX MCY → BNE May 28, 22:00 UTCMay 28, 22:20 UTC20m
2026-05-20 LJX - May 20, 07:50 UTCMay 20, 08:05 UTC15m
2026-05-20 VHLJX OOL → BNE May 20, 00:55 UTCMay 20, 07:10 UTC6h 16m
2026-05-19 LJX - May 19, 23:45 UTCMay 20, 00:05 UTC20m
2026-05-16 LJX BNE → MCY May 16, 11:31 UTCMay 16, 12:01 UTC30m
2026-05-16 LJX - May 16, 10:25 UTCMay 16, 11:01 UTC35m
2026-05-16 LJX - May 16, 02:40 UTCMay 16, 03:20 UTC40m

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

Mode-S 7C390B frequently asked

What is Mode-S code 7C390B?
7C390B is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-LJX.
Where is Mode-S 7C390B registered?
Mode-S code 7C390B is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C390B broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C390B, octal 37034413, decimal 8,141,067.
What flights does 7C390B operate?
Mode-S 7C390B has broadcast 2 distinct callsigns, including LJX, VHLJX.