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sensors Mode-S transponder

7C794F

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-X8X · CESSNA 525B Citation CJ3

Hex
7C794F
Octal
37074517
Decimal
8,157,519
Country
AU
Tail
VH-X8X
Type
C25B
No current signal · last broadcast 6h ago
Flights observed
78
Distinct callsigns
6
Country
AU
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 7C794F.

Country allocation

The ICAO 24-bit address 7C794F 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 6 distinct

Callsign Airline Flights Last seen
NV151 - 31 2026-06-12
NV131 - 31 2026-07-10
NV143 - 6 2026-06-17
VHX8X - 5 2026-04-25
NV147 - 4 2026-07-14
X8X - 1 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 NV147 - Jul 14, 01:05 UTCJul 14, 03:55 UTC2h 50m
2026-07-13 NV147 MCY → SYD Jul 13, 22:20 UTCJul 14, 00:00 UTC1h 40m
2026-07-10 NV131 SYD → MCY Jul 10, 07:50 UTCJul 10, 09:15 UTC1h 25m
2026-07-10 NV131 BWU → SYD Jul 10, 06:40 UTCJul 10, 06:50 UTC10m
2026-07-10 NV131 MEB → BWU Jul 10, 04:35 UTCJul 10, 05:45 UTC1h 10m
2026-07-10 NV131 BWU → MEB Jul 10, 02:10 UTCJul 10, 03:20 UTC1h 10m
2026-07-08 NV131 - Jul 8, 10:25 UTCJul 8, 10:30 UTC5m
2026-07-08 NV131 MEB → SYD Jul 8, 08:40 UTCJul 8, 09:50 UTC1h 10m
2026-07-08 NV131 - Jul 8, 04:30 UTCJul 8, 06:55 UTC2h 25m
2026-07-08 NV131 - Jul 8, 02:20 UTCJul 8, 03:30 UTC1h 10m
2026-07-06 NV131 - Jul 6, 10:15 UTCJul 6, 11:25 UTC1h 10m
2026-07-06 NV131 - Jul 6, 07:10 UTCJul 6, 09:30 UTC2h 20m
2026-07-06 NV147 - Jul 6, 06:00 UTCJul 6, 06:20 UTC20m
2026-07-02 NV147 - Jul 2, 07:20 UTCJul 2, 08:35 UTC1h 15m
2026-07-02 NV131 BWU → SYD Jul 2, 05:00 UTCJul 2, 05:15 UTC15m
2026-06-27 NV131 - Jun 27, 04:29 UTCJun 27, 05:04 UTC35m
2026-06-26 NV131 - Jun 26, 03:29 UTCJun 26, 04:39 UTC1h 10m
2026-06-26 X8X - Jun 26, 01:05 UTCJun 26, 02:20 UTC1h 15m
2026-06-23 NV131 MEB → BWU Jun 23, 07:35 UTCJun 23, 08:39 UTC1h 5m
2026-06-21 NV131 BWU → MEB Jun 21, 23:10 UTCJun 22, 00:29 UTC1h 20m
2026-06-21 NV131 - Jun 21, 10:14 UTCJun 21, 11:30 UTC1h 15m
2026-06-19 NV131 - Jun 19, 14:15 UTCJun 19, 15:34 UTC1h 20m
2026-06-17 NV131 MEB → BWU Jun 17, 22:45 UTCJun 17, 23:55 UTC1h 10m
2026-06-17 NV143 BWU → MEB Jun 17, 05:55 UTCJun 17, 07:10 UTC1h 15m
2026-06-16 NV143 TMW → BWU Jun 16, 04:35 UTCJun 16, 05:15 UTC40m
2026-06-16 NV143 BWU → TMW Jun 16, 02:50 UTCJun 16, 03:30 UTC40m
2026-06-14 NV131 - Jun 14, 08:35 UTCJun 14, 10:05 UTC1h 30m
2026-06-14 NV131 - Jun 14, 01:35 UTCJun 14, 03:20 UTC1h 45m
2026-06-12 NV151 MEB → BWU Jun 12, 06:25 UTCJun 12, 07:30 UTC1h 5m
2026-06-11 NV151 BWU → MEB Jun 11, 23:30 UTCJun 12, 00:50 UTC1h 20m
2026-06-11 NV151 - Jun 11, 08:55 UTCJun 11, 10:15 UTC1h 20m
2026-06-11 NV151 BWU → BNE Jun 11, 07:00 UTCJun 11, 08:25 UTC1h 25m
2026-06-10 NV151 - Jun 10, 23:15 UTCJun 11, 00:30 UTC1h 15m
2026-06-10 NV151 BWU → BNE Jun 10, 21:15 UTCJun 10, 22:40 UTC1h 25m
2026-06-09 NV151 - Jun 9, 23:55 UTCJun 10, 00:45 UTC50m
2026-06-09 NV151 - Jun 9, 22:35 UTCJun 9, 23:10 UTC35m
2026-06-09 NV151 BWU → SYD Jun 9, 21:30 UTCJun 9, 21:45 UTC15m
2026-06-08 NV143 - Jun 8, 07:25 UTCJun 8, 07:35 UTC10m
2026-06-08 NV143 MEB → BWU Jun 8, 05:25 UTCJun 8, 06:35 UTC1h 10m
2026-06-08 NV143 BWU → MEB Jun 8, 03:05 UTCJun 8, 04:15 UTC1h 10m
2026-06-06 NV151 - Jun 6, 05:25 UTCJun 6, 05:35 UTC10m
2026-06-06 NV151 - Jun 6, 00:10 UTCJun 6, 04:45 UTC4h 35m
2026-06-05 NV151 - Jun 5, 22:05 UTCJun 6, 00:05 UTC2h 0m
2026-06-04 NV151 - Jun 4, 07:15 UTCJun 4, 08:20 UTC1h 5m
2026-06-04 NV151 - Jun 4, 06:15 UTCJun 4, 06:45 UTC30m
2026-06-04 NV151 - Jun 4, 01:05 UTCJun 4, 02:00 UTC55m
2026-06-02 NV151 SYD → BWU Jun 2, 23:20 UTCJun 3, 05:00 UTC5h 40m
2026-06-02 NV151 BWU → SYD Jun 2, 21:50 UTCJun 2, 22:05 UTC15m
2026-05-26 NV151 MEB → BWU May 26, 06:59 UTCMay 26, 08:15 UTC1h 15m
2026-05-24 NV151 - May 24, 23:20 UTCMay 24, 23:46 UTC26m

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-X8X page for operator, model, and routing details .

Mode-S 7C794F frequently asked

What is Mode-S code 7C794F?
7C794F is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-X8X.
Where is Mode-S 7C794F registered?
Mode-S code 7C794F is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C794F broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C794F, octal 37074517, decimal 8,157,519.
What flights does 7C794F operate?
Mode-S 7C794F has broadcast 6 distinct callsigns, including NV151, NV131, NV143, VHX8X, NV147.