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sensors Mode-S transponder

7C801E

ICAO 24-bit transponder address · allocated to Australia

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

Hex
7C801E
Octal
37100036
Decimal
8,159,262
Country
AU
Tail
VH-ZLC
Type
SF34
No current signal · last broadcast 23h ago
Flights observed
366
Distinct callsigns
20
Country
AU
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 7C801E.

Country allocation

The ICAO 24-bit address 7C801E 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
RXA3937 - 20 2026-06-18
RXA3579 - 13 2026-06-29
RXA3554 - 13 2026-06-29
RXA3469 - 13 2026-07-02
RXA3468 - 13 2026-07-02
RXA6133 - 12 2026-07-20
RXA3915 - 12 2026-06-19
RXA3685 - 8 2026-07-01
RXA3684 - 8 2026-07-01
RXA3682 - 8 2026-07-01
RXA3656 - 8 2026-06-29
RXA3653 - 8 2026-07-01
RXA3657 - 7 2026-06-30
RXA6139 - 6 2026-07-19
RXA6117 - 6 2026-07-20
RXA3578 - 6 2026-07-02
RXA3514 Regional Express 6 2026-06-15
RXA3513 - 6 2026-06-14
RXA6833 Regional Express 5 2026-07-21
RXA6832 Regional Express 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 RXA6833 DBO → SYD Jul 21, 07:25 UTCJul 21, 08:15 UTC50m
2026-07-21 RXA6832 SYD → DBO Jul 21, 05:40 UTCJul 21, 06:20 UTC40m
2026-07-21 RXA6529 PKE → SYD Jul 21, 04:05 UTCJul 21, 04:45 UTC40m
2026-07-21 RXA6528 SYD → PKE Jul 21, 02:45 UTCJul 21, 03:25 UTC40m
2026-07-20 RXA6133 - Jul 20, 06:10 UTCJul 20, 07:35 UTC1h 25m
2026-07-20 RXA6133 - Jul 20, 04:30 UTCJul 20, 05:15 UTC45m
2026-07-20 RXA6117 - Jul 20, 01:00 UTCJul 20, 02:15 UTC1h 15m
2026-07-19 RXA6117 - Jul 19, 23:35 UTCJul 20, 00:15 UTC40m
2026-07-19 RXA6114 - Jul 19, 21:15 UTCJul 19, 22:10 UTC55m
2026-07-19 RXA6139 - Jul 19, 08:35 UTCJul 19, 09:35 UTC1h 0m
2026-07-19 RXA6133 - Jul 19, 05:55 UTCJul 19, 07:25 UTC1h 30m
2026-07-19 RXA6133 - Jul 19, 04:30 UTCJul 19, 05:10 UTC40m
2026-07-19 RXA6464 NRA → SYD Jul 19, 01:45 UTCJul 19, 02:25 UTC40m
2026-07-18 RXA6477 - Jul 18, 09:05 UTCJul 18, 09:50 UTC45m
2026-07-18 RXA6833 DBO → SYD Jul 18, 07:20 UTCJul 18, 08:10 UTC50m
2026-07-18 RXA6832 SYD → DBO Jul 18, 05:35 UTCJul 18, 06:10 UTC35m
2026-07-18 RXA6529 PKE → SYD Jul 18, 04:00 UTCJul 18, 05:15 UTC1h 15m
2026-07-18 RXA6528 SYD → PKE Jul 18, 02:19 UTCJul 18, 02:50 UTC31m
2026-07-18 RXA6825 - Jul 18, 00:19 UTCJul 18, 01:20 UTC1h 0m
2026-07-17 RXA6824 - Jul 17, 22:40 UTCJul 17, 23:14 UTC35m
2026-07-17 RXA6821 - Jul 17, 20:50 UTCJul 17, 21:55 UTC1h 5m
2026-07-17 RXA6836 - Jul 17, 10:05 UTCJul 17, 10:40 UTC35m
2026-07-17 RXA6833 - Jul 17, 08:25 UTCJul 17, 09:55 UTC1h 30m
2026-07-17 RXA6832 - Jul 17, 05:35 UTCJul 17, 06:05 UTC30m
2026-07-17 RXA6529 - Jul 17, 03:59 UTCJul 17, 04:49 UTC50m
2026-07-17 RXA6528 - Jul 17, 02:20 UTCJul 17, 02:50 UTC30m
2026-07-17 RXA6825 - Jul 17, 00:25 UTCJul 17, 01:15 UTC50m
2026-07-16 RXA6824 - Jul 16, 22:40 UTCJul 16, 23:15 UTC35m
2026-07-16 RXA6821 - Jul 16, 21:00 UTCJul 16, 21:55 UTC55m
2026-07-16 RXA6836 - Jul 16, 10:00 UTCJul 16, 10:35 UTC35m
2026-07-16 RXA6833 - Jul 16, 07:55 UTCJul 16, 08:55 UTC1h 0m
2026-07-16 RXA6832 - Jul 16, 06:00 UTCJul 16, 06:30 UTC30m
2026-07-16 RXA6529 - Jul 16, 04:10 UTCJul 16, 05:00 UTC50m
2026-07-16 RXA6528 - Jul 16, 02:45 UTCJul 16, 03:15 UTC30m
2026-07-15 RXA6363 - Jul 15, 23:20 UTCJul 16, 01:40 UTC2h 20m
2026-07-15 RXA6561 - Jul 15, 21:45 UTCJul 15, 23:10 UTC1h 25m
2026-07-15 RXA6588 - Jul 15, 08:55 UTCJul 15, 09:25 UTC30m
2026-07-15 RXA6437 - Jul 15, 06:30 UTCJul 15, 07:35 UTC1h 5m
2026-07-15 RXA6436 SYD → NBH Jul 15, 05:05 UTCJul 15, 05:55 UTC50m
2026-07-14 RXA6373 PQQ → SYD Jul 14, 06:35 UTCJul 14, 07:30 UTC55m
2026-07-14 RXA6372 - Jul 14, 05:10 UTCJul 14, 06:00 UTC50m
2026-07-14 RXA6177 - Jul 14, 03:55 UTCJul 14, 05:05 UTC1h 10m
2026-07-14 RXA6174 - Jul 14, 02:55 UTCJul 14, 03:20 UTC25m
2026-07-14 RXA6363 PQQ → SYD Jul 14, 00:40 UTCJul 14, 01:40 UTC1h 0m
2026-07-13 RXA6561 - Jul 13, 21:25 UTCJul 13, 22:15 UTC50m
2026-07-13 RXA6588 - Jul 13, 08:55 UTCJul 13, 09:30 UTC35m
2026-07-13 RXA6373 - Jul 13, 06:55 UTCJul 13, 08:01 UTC1h 5m
2026-07-13 RXA6372 SYD → PQQ Jul 13, 05:35 UTCJul 13, 06:50 UTC1h 15m
2026-07-13 RXA6177 - Jul 13, 04:05 UTCJul 13, 04:40 UTC35m
2026-07-13 RXA6174 - Jul 13, 02:55 UTCJul 13, 03:20 UTC25m

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

Mode-S 7C801E frequently asked

What is Mode-S code 7C801E?
7C801E is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ZLC.
Where is Mode-S 7C801E registered?
Mode-S code 7C801E is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C801E broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C801E, octal 37100036, decimal 8,159,262.
What flights does 7C801E operate?
Mode-S 7C801E has broadcast 20 distinct callsigns, including RXA3937, RXA3579, RXA3554, RXA3469, RXA3468.