Apparatus

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sensors Mode-S transponder

7C80FE

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C80FE
Octal
37100376
Decimal
8,159,486
Country
AU
Tail
VH-ZRK
Type
SF34
No current signal · last broadcast 5d ago
Flights observed
141
Distinct callsigns
20
Country
AU
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 7C80FE.

Country allocation

The ICAO 24-bit address 7C80FE 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
RXA5722 - 8 2026-07-03
RXA5733 - 5 2026-07-09
RXA5732 - 5 2026-07-09
RXA5719 - 5 2026-07-11
RXA5718 - 5 2026-07-10
RXA5745 - 4 2026-07-12
RXA5742 - 4 2026-06-25
RXA5738 - 4 2026-07-12
RXA5724 - 4 2026-07-12
RXA5717 - 4 2026-07-02
RXA5716 - 4 2026-07-02
RXA3937 Regional Express 3 2026-06-08
RXA3915 Regional Express 3 2026-06-09
RXA6681 - 2 2026-06-16
RXA6674 - 2 2026-06-16
RXA6661 Regional Express 2 2026-06-15
RXA6658 - 2 2026-06-16
RXA6133 Regional Express 2 2026-06-11
RXA6117 - 2 2026-06-15
RXA5727 - 2 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 RXA5662 - Jul 12, 23:10 UTCJul 12, 23:25 UTC15m
2026-07-12 RXA5662 - Jul 12, 22:10 UTCJul 12, 22:30 UTC20m
2026-07-12 RXA5745 - Jul 12, 09:00 UTCJul 12, 09:35 UTC35m
2026-07-12 RXA5738 - Jul 12, 06:30 UTCJul 12, 07:10 UTC40m
2026-07-12 RXA5724 - Jul 12, 05:01 UTCJul 12, 05:40 UTC40m
2026-07-12 RXA5724 - Jul 12, 00:35 UTCJul 12, 01:15 UTC40m
2026-07-11 RXA5719 - Jul 11, 01:20 UTCJul 11, 01:55 UTC35m
2026-07-10 RXA5718 - Jul 10, 23:05 UTCJul 10, 23:45 UTC40m
2026-07-10 RXA5745 - Jul 10, 08:40 UTCJul 10, 09:20 UTC40m
2026-07-10 RXA5738 - Jul 10, 06:20 UTCJul 10, 06:55 UTC35m
2026-07-10 RXA5727 - Jul 10, 04:55 UTCJul 10, 05:30 UTC35m
2026-07-10 RXA5726 - Jul 10, 02:45 UTCJul 10, 03:20 UTC35m
2026-07-09 RXA5733 - Jul 9, 06:30 UTCJul 9, 07:15 UTC45m
2026-07-09 RXA5732 - Jul 9, 04:15 UTCJul 9, 04:50 UTC35m
2026-07-09 RXA5719 - Jul 9, 01:25 UTCJul 9, 02:00 UTC35m
2026-07-08 RXA5718 - Jul 8, 23:05 UTCJul 8, 23:45 UTC40m
2026-07-08 RXA5733 - Jul 8, 06:30 UTCJul 8, 07:00 UTC30m
2026-07-08 RXA5732 - Jul 8, 04:10 UTCJul 8, 04:45 UTC35m
2026-07-08 RXA5719 - Jul 8, 01:30 UTCJul 8, 02:05 UTC35m
2026-07-07 RXA5718 - Jul 7, 23:05 UTCJul 7, 23:35 UTC30m
2026-07-07 RXA5733 - Jul 7, 06:25 UTCJul 7, 07:10 UTC45m
2026-07-07 RXA5732 - Jul 7, 04:10 UTCJul 7, 04:45 UTC35m
2026-07-07 RXA5719 - Jul 7, 01:20 UTCJul 7, 01:55 UTC35m
2026-07-06 RXA5718 - Jul 6, 23:05 UTCJul 6, 23:35 UTC30m
2026-07-06 RXA5733 - Jul 6, 06:20 UTCJul 6, 07:05 UTC45m
2026-07-06 RXA5732 - Jul 6, 04:10 UTCJul 6, 04:45 UTC35m
2026-07-06 RXA5719 - Jul 6, 01:15 UTCJul 6, 02:00 UTC45m
2026-07-05 RXA5718 - Jul 5, 23:05 UTCJul 5, 23:40 UTC35m
2026-07-03 RXA5722 - Jul 3, 05:15 UTCJul 3, 05:55 UTC40m
2026-07-03 RXA5722 - Jul 3, 01:10 UTCJul 3, 01:45 UTC35m
2026-07-02 RXA5717 - Jul 2, 23:30 UTCJul 3, 00:05 UTC35m
2026-07-02 RXA5716 - Jul 2, 21:15 UTCJul 2, 22:00 UTC45m
2026-07-02 RXA5733 - Jul 2, 07:15 UTCJul 2, 07:55 UTC40m
2026-07-02 RXA5732 - Jul 2, 04:30 UTCJul 2, 05:15 UTC45m
2026-06-28 RXA5632 - Jun 28, 05:55 UTCJun 28, 06:34 UTC40m
2026-06-27 RXA5631 - Jun 27, 22:15 UTCJun 27, 23:25 UTC1h 10m
2026-06-26 RXA5745 - Jun 26, 08:50 UTCJun 26, 09:35 UTC45m
2026-06-26 RXA5738 - Jun 26, 06:29 UTCJun 26, 07:05 UTC35m
2026-06-26 RXA5727 - Jun 26, 04:55 UTCJun 26, 05:35 UTC40m
2026-06-26 RXA5726 - Jun 26, 02:50 UTCJun 26, 03:15 UTC25m
2026-06-25 RXA5742 - Jun 25, 08:50 UTCJun 25, 09:29 UTC40m
2026-06-25 RXA5742 - Jun 25, 04:40 UTCJun 25, 05:15 UTC35m
2026-06-24 RXA5632 - Jun 24, 06:15 UTCJun 24, 06:55 UTC40m
2026-06-23 RXA5631 - Jun 23, 22:05 UTCJun 23, 23:14 UTC1h 10m
2026-06-23 RXA5722 - Jun 23, 05:20 UTCJun 23, 05:54 UTC35m
2026-06-23 RXA5722 - Jun 23, 01:15 UTCJun 23, 01:54 UTC40m
2026-06-22 RXA5717 - Jun 22, 23:24 UTCJun 22, 23:55 UTC30m
2026-06-22 RXA5716 - Jun 22, 21:10 UTCJun 22, 21:49 UTC40m
2026-06-22 RXA5722 - Jun 22, 05:20 UTCJun 22, 05:54 UTC35m
2026-06-22 RXA5722 - Jun 22, 01:10 UTCJun 22, 01:44 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-ZRK page for operator, model, and routing details .

Mode-S 7C80FE frequently asked

What is Mode-S code 7C80FE?
7C80FE is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZRK.
Where is Mode-S 7C80FE registered?
Mode-S code 7C80FE is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C80FE broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C80FE, octal 37100376, decimal 8,159,486.
What flights does 7C80FE operate?
Mode-S 7C80FE has broadcast 20 distinct callsigns, including RXA5722, RXA5733, RXA5732, RXA5719, RXA5718.