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sensors Mode-S transponder

7C6813

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-UUD · AIRPLANE FACTORY Sling 2 · operated by LEARN TO FLY AUSTRALIA OPERATIONS PTY LTD

Hex
7C6813
Octal
37064023
Decimal
8,153,107
Country
AU
Tail
VH-UUD
Type
SLG2
No current signal · last broadcast 30m ago
Flights observed
227
Distinct callsigns
1
Country
AU
Last broadcast
30m ago

Last known position

Most recent position reported by Mode-S 7C6813.

Country allocation

The ICAO 24-bit address 7C6813 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 1 distinct

Callsign Airline Flights Last seen
UUD - 227 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 UUD MBW → MBW Jul 18, 01:45 UTCJul 18, 02:19 UTC35m
2026-07-18 UUD - Jul 18, 00:15 UTCJul 18, 00:50 UTC35m
2026-07-17 UUD MBW → MBW Jul 17, 23:30 UTCJul 17, 23:55 UTC25m
2026-07-17 UUD MBW → MBW Jul 17, 06:10 UTCJul 17, 06:50 UTC40m
2026-07-17 UUD MBW → MBW Jul 17, 05:10 UTCJul 17, 05:30 UTC20m
2026-07-17 UUD MBW → MBW Jul 17, 04:04 UTCJul 17, 04:29 UTC25m
2026-07-17 UUD MBW → MBW Jul 17, 02:54 UTCJul 17, 03:14 UTC20m
2026-07-17 UUD MBW → MBW Jul 17, 00:45 UTCJul 17, 01:05 UTC20m
2026-07-16 UUD MBW → MBW Jul 16, 22:10 UTCJul 16, 23:15 UTC1h 5m
2026-07-16 UUD MBW → MBW Jul 16, 05:50 UTCJul 16, 06:05 UTC15m
2026-07-16 UUD MBW → MBW Jul 16, 04:00 UTCJul 16, 04:30 UTC30m
2026-07-15 UUD MBW → MBW Jul 15, 01:40 UTCJul 15, 02:15 UTC35m
2026-07-14 UUD MBW → MBW Jul 14, 23:10 UTCJul 14, 23:40 UTC30m
2026-07-14 UUD MBW → MBW Jul 14, 03:05 UTCJul 14, 03:25 UTC20m
2026-07-13 UUD MBW → MBW Jul 13, 23:40 UTCJul 14, 00:15 UTC35m
2026-07-13 UUD MBW → MBW Jul 13, 03:50 UTCJul 13, 04:05 UTC15m
2026-07-13 UUD MBW → MBW Jul 13, 02:25 UTCJul 13, 03:01 UTC35m
2026-07-12 UUD MBW → MBW Jul 12, 22:35 UTCJul 12, 23:05 UTC30m
2026-07-12 UUD MBW → MBW Jul 12, 01:25 UTCJul 12, 02:10 UTC45m
2026-07-11 UUD MBW → MBW Jul 11, 03:30 UTCJul 11, 03:55 UTC25m
2026-07-11 UUD MBW → MBW Jul 11, 00:20 UTCJul 11, 00:30 UTC10m
2026-07-10 UUD MBW → MBW Jul 10, 06:15 UTCJul 10, 06:55 UTC40m
2026-07-10 UUD MBW → MBW Jul 10, 04:20 UTCJul 10, 05:05 UTC45m
2026-07-10 UUD MBW → MBW Jul 10, 03:15 UTCJul 10, 03:20 UTC5m
2026-07-10 UUD MBW → MBW Jul 10, 02:15 UTCJul 10, 02:40 UTC25m
2026-07-09 UUD MBW → MBW Jul 9, 23:15 UTCJul 9, 23:50 UTC35m
2026-07-09 UUD MBW → MBW Jul 9, 01:40 UTCJul 9, 02:15 UTC35m
2026-07-08 UUD MBW → MBW Jul 8, 05:10 UTCJul 8, 05:55 UTC45m
2026-07-07 UUD MBW → MBW Jul 7, 05:15 UTCJul 7, 06:00 UTC45m
2026-07-06 UUD MBW → MBW Jul 6, 02:00 UTCJul 6, 02:35 UTC35m
2026-07-05 UUD MBW → MBW Jul 5, 23:00 UTCJul 5, 23:35 UTC35m
2026-07-05 UUD MBW → MBW Jul 5, 05:55 UTCJul 5, 06:35 UTC40m
2026-07-05 UUD MBW → MBW Jul 5, 04:30 UTCJul 5, 05:10 UTC40m
2026-07-05 UUD - Jul 5, 02:35 UTCJul 5, 03:20 UTC45m
2026-07-05 UUD MBW → MBW Jul 5, 01:40 UTCJul 5, 02:00 UTC20m
2026-07-04 UUD MBW → MBW Jul 4, 04:10 UTCJul 4, 04:25 UTC15m
2026-07-03 UUD - Jul 3, 23:40 UTCJul 3, 23:55 UTC15m
2026-06-28 UUD - Jun 28, 23:14 UTCJun 28, 23:29 UTC15m
2026-06-26 UUD MBW → MBW Jun 26, 06:35 UTCJun 26, 06:50 UTC15m
2026-06-26 UUD MBW → MBW Jun 26, 04:45 UTCJun 26, 05:30 UTC45m
2026-06-25 UUD MBW → MBW Jun 25, 04:35 UTCJun 25, 05:20 UTC45m
2026-06-24 UUD - Jun 24, 05:59 UTCJun 24, 06:39 UTC40m
2026-06-24 UUD MBW → MBW Jun 24, 04:55 UTCJun 24, 05:34 UTC40m
2026-06-24 UUD MBW → MBW Jun 24, 02:45 UTCJun 24, 03:55 UTC1h 10m
2026-06-23 UUD - Jun 23, 05:45 UTCJun 23, 06:29 UTC45m
2026-06-23 UUD MBW → MBW Jun 23, 04:19 UTCJun 23, 05:00 UTC40m
2026-06-23 UUD MBW → MBW Jun 23, 03:20 UTCJun 23, 03:49 UTC30m
2026-06-23 UUD MBW → MBW Jun 23, 01:20 UTCJun 23, 01:54 UTC35m
2026-06-22 UUD MBW → MBW Jun 22, 23:24 UTCJun 23, 00:04 UTC40m
2026-06-22 UUD MBW → MBW Jun 22, 06:05 UTCJun 22, 06:35 UTC30m

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

Mode-S 7C6813 frequently asked

What is Mode-S code 7C6813?
7C6813 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-UUD.
Where is Mode-S 7C6813 registered?
Mode-S code 7C6813 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6813 broadcasting right now?
No active broadcast right now. Last signal was 30m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6813, octal 37064023, decimal 8,153,107.
What flights does 7C6813 operate?
Mode-S 7C6813 has broadcast 1 distinct callsign, including UUD.