Apparatus

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sensors Mode-S transponder

7C495B

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ORX · SAAB 340 · operated by REGIONAL EXPRESS PTY LTD

Hex
7C495B
Octal
37044533
Decimal
8,145,243
Country
AU
Tail
VH-ORX
Type
SF34
No current signal · last broadcast 7d ago
Flights observed
378
Distinct callsigns
20
Country
AU
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S 7C495B.

Country allocation

The ICAO 24-bit address 7C495B 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 20 distinct

Callsign Airline Flights Last seen
RXA6469 - 20 2026-07-07
RXA6117 Regional Express 14 2026-07-21
RXA6681 - 12 2026-07-19
RXA6674 - 12 2026-07-19
RXA6661 - 12 2026-07-21
RXA6133 - 12 2026-06-25
RXA6783 - 11 2026-07-14
RXA6776 - 10 2026-07-14
RXA6762 - 10 2026-07-14
RXA6463 Regional Express 10 2026-06-03
RXA6658 Regional Express 9 2026-07-19
RXA6668 - 8 2026-07-20
RXA6139 - 8 2026-07-20
RXA6114 - 8 2026-07-20
RXA6773 - 6 2026-07-14
RXA6588 - 6 2026-07-09
RXA6561 - 6 2026-07-09
RXA6438 Regional Express 6 2026-07-21
RXA6413 Regional Express 6 2026-07-21
RXA6373 Regional Express 6 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RXA3656 MEL → MQL Jul 26, 22:40 UTCJul 26, 22:45 UTC5m
2026-07-26 RXA3554 BWT → MEL Jul 26, 20:40 UTCJul 26, 21:40 UTC1h 0m
2026-07-26 RXA3579 MEL → BWT Jul 26, 09:35 UTCJul 26, 10:20 UTC45m
2026-07-26 RXA3578 BWT → MEL Jul 26, 07:50 UTCJul 26, 08:50 UTC1h 0m
2026-07-26 RXA3577 MEL → BWT Jul 26, 06:00 UTCJul 26, 06:45 UTC46m
2026-07-26 RXA3874 - Jul 26, 03:45 UTCJul 26, 04:20 UTC35m
2026-07-26 RXA3873 - Jul 26, 02:25 UTCJul 26, 02:55 UTC30m
2026-07-25 RXA3469 MIM → MEL Jul 25, 04:20 UTCJul 25, 05:05 UTC45m
2026-07-25 RXA3468 MEL → MIM Jul 25, 02:15 UTCJul 25, 02:50 UTC35m
2026-07-25 RXA3558 BWT → MEL Jul 25, 00:40 UTCJul 25, 02:10 UTC1h 30m
2026-07-24 RXA3557 MEL → BWT Jul 24, 22:50 UTCJul 24, 23:35 UTC45m
2026-07-24 RXA3653 MQL → MEL Jul 24, 21:05 UTCJul 24, 21:50 UTC45m
2026-07-24 RXA3684 MEL → MQL Jul 24, 09:25 UTCJul 24, 10:00 UTC35m
2026-07-24 RXA3685 MQL → MEL Jul 24, 07:55 UTCJul 24, 08:40 UTC45m
2026-07-24 RXA3682 MEL → MQL Jul 24, 05:40 UTCJul 24, 06:15 UTC35m
2026-07-24 RXA3874 - Jul 24, 04:10 UTCJul 24, 04:45 UTC35m
2026-07-24 RXA3873 - Jul 24, 02:50 UTCJul 24, 03:25 UTC35m
2026-07-24 RXA3657 MQL → MEL Jul 24, 01:00 UTCJul 24, 01:55 UTC55m
2026-07-23 RXA3656 MEL → MQL Jul 23, 22:45 UTCJul 23, 23:15 UTC30m
2026-07-23 RXA3554 BWT → MEL Jul 23, 20:45 UTCJul 23, 21:30 UTC45m
2026-07-23 RXA3579 MEL → BWT Jul 23, 09:35 UTCJul 23, 10:20 UTC45m
2026-07-23 RXA3578 BWT → MEL Jul 23, 07:55 UTCJul 23, 08:50 UTC55m
2026-07-23 RXA3577 MEL → BWT Jul 23, 06:10 UTCJul 23, 06:55 UTC45m
2026-07-23 RXA3469 MIM → MEL Jul 23, 04:20 UTCJul 23, 05:05 UTC45m
2026-07-23 RXA3468 MEL → MIM Jul 23, 02:15 UTCJul 23, 02:50 UTC35m
2026-07-23 RXA3558 BWT → MEL Jul 23, 00:35 UTCJul 23, 01:25 UTC50m
2026-07-22 RXA3557 MEL → BWT Jul 22, 23:00 UTCJul 22, 23:40 UTC40m
2026-07-22 RXA3752 - Jul 22, 21:25 UTCJul 22, 22:15 UTC50m
2026-07-21 RXA6661 - Jul 21, 22:55 UTCJul 21, 23:40 UTC45m
2026-07-21 RXA6413 CFS → SYD Jul 21, 20:45 UTCJul 21, 21:55 UTC1h 10m
2026-07-21 RXA6438 SYD → CFS Jul 21, 08:50 UTCJul 21, 09:45 UTC55m
2026-07-21 RXA6373 PQQ → SYD Jul 21, 06:50 UTCJul 21, 07:55 UTC1h 5m
2026-07-21 RXA6372 SYD → PQQ Jul 21, 05:35 UTCJul 21, 06:45 UTC1h 10m
2026-07-21 RXA6177 OAG → SYD Jul 21, 04:15 UTCJul 21, 05:20 UTC1h 5m
2026-07-21 RXA6174 SYD → OAG Jul 21, 03:05 UTCJul 21, 03:30 UTC25m
2026-07-21 RXA6117 MIM → MYA Jul 21, 01:40 UTCJul 21, 02:20 UTC40m
2026-07-20 RXA6117 MIM → MYA Jul 20, 23:20 UTCJul 21, 00:05 UTC44m
2026-07-20 RXA6114 - Jul 20, 20:50 UTCJul 20, 22:25 UTC1h 35m
2026-07-20 RXA6139 - Jul 20, 09:25 UTCJul 20, 10:20 UTC55m
2026-07-20 RXA6437 CFS → SYD Jul 20, 06:30 UTCJul 20, 07:40 UTC1h 10m
2026-07-20 RXA6436 - Jul 20, 04:40 UTCJul 20, 05:35 UTC55m
2026-07-20 RXA6668 - Jul 20, 03:00 UTCJul 20, 03:45 UTC45m
2026-07-19 RXA6661 - Jul 19, 23:10 UTCJul 19, 23:55 UTC45m
2026-07-19 RXA6658 WGA → SYD Jul 19, 21:15 UTCJul 19, 22:00 UTC45m
2026-07-19 RXA6681 - Jul 19, 09:15 UTCJul 19, 10:00 UTC45m
2026-07-19 RXA6674 - Jul 19, 07:15 UTCJul 19, 08:05 UTC50m
2026-07-19 RXA6673 - Jul 19, 05:30 UTCJul 19, 06:10 UTC40m
2026-07-19 RXA6668 - Jul 19, 03:00 UTCJul 19, 03:45 UTC45m
2026-07-19 RXA6663 SYD → WGA Jul 19, 00:20 UTCJul 19, 01:00 UTC40m
2026-07-18 RXA6662 WGA → SYD Jul 18, 22:45 UTCJul 18, 23:55 UTC1h 10m

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

Mode-S 7C495B frequently asked

What is Mode-S code 7C495B?
7C495B is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ORX.
Where is Mode-S 7C495B registered?
Mode-S code 7C495B is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C495B broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C495B, octal 37044533, decimal 8,145,243.
What flights does 7C495B operate?
Mode-S 7C495B has broadcast 20 distinct callsigns, including RXA6469, RXA6117, RXA6681, RXA6674, RXA6661.