Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 20h ago
Flights observed
133
Distinct callsigns
1
Country
AU
Last broadcast
20h 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 - 133 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 UUD MBW → MBW Jun 2, 03:40 UTCJun 2, 04:05 UTC25m
2026-06-01 UUD MBW → MBW Jun 1, 03:20 UTCJun 1, 04:10 UTC50m
2026-06-01 UUD MBW → MBW Jun 1, 00:55 UTCJun 1, 02:10 UTC1h 15m
2026-05-31 UUD MBW → MBW May 31, 22:50 UTCMay 31, 23:25 UTC35m
2026-05-30 UUD MBW → MBW May 30, 06:00 UTCMay 30, 06:50 UTC50m
2026-05-30 UUD MBW → MBW May 30, 04:35 UTCMay 30, 04:55 UTC20m
2026-05-30 UUD MBW → MBW May 30, 03:50 UTCMay 30, 04:10 UTC20m
2026-05-30 UUD MBW → MBW May 30, 02:15 UTCMay 30, 02:35 UTC20m
2026-05-30 UUD MBW → MBW May 30, 01:05 UTCMay 30, 01:25 UTC20m
2026-05-29 UUD MBW → MBW May 29, 23:25 UTCMay 30, 00:10 UTC45m
2026-05-29 UUD MBW → MBW May 29, 05:25 UTCMay 29, 05:40 UTC15m
2026-05-29 UUD - May 29, 03:35 UTCMay 29, 04:15 UTC40m
2026-05-29 UUD - May 29, 02:45 UTCMay 29, 02:55 UTC10m
2026-05-29 UUD MBW → MBW May 29, 02:10 UTCMay 29, 02:30 UTC20m
2026-05-29 UUD MBW → MBW May 29, 01:00 UTCMay 29, 01:40 UTC40m
2026-05-25 UUD MBW → MBW May 25, 04:05 UTCMay 25, 04:45 UTC40m
2026-05-25 UUD MBW → MBW May 25, 02:20 UTCMay 25, 02:55 UTC35m
2026-05-24 UUD MBW → MBW May 24, 04:40 UTCMay 24, 05:20 UTC40m
2026-05-24 UUD MBW → MBW May 24, 02:55 UTCMay 24, 03:35 UTC40m
2026-05-24 UUD MBW → MBW May 24, 00:50 UTCMay 24, 01:30 UTC40m
2026-05-23 UUD MBW → MBW May 23, 23:00 UTCMay 23, 23:45 UTC45m
2026-05-23 UUD MBW → MBW May 23, 04:50 UTCMay 23, 05:20 UTC30m
2026-05-23 UUD MBW → MBW May 23, 03:25 UTCMay 23, 03:50 UTC25m
2026-05-23 UUD MBW → MBW May 23, 01:35 UTCMay 23, 02:15 UTC40m
2026-05-22 UUD MBW → MBW May 22, 23:35 UTCMay 23, 00:30 UTC55m
2026-05-22 UUD MBW → MBW May 22, 06:15 UTCMay 22, 07:00 UTC45m
2026-05-22 UUD - May 22, 04:45 UTCMay 22, 05:15 UTC30m
2026-05-22 UUD MBW → MBW May 22, 03:20 UTCMay 22, 03:55 UTC35m
2026-05-22 UUD MBW → MBW May 22, 01:35 UTCMay 22, 02:20 UTC45m
2026-05-21 UUD MBW → MBW May 21, 22:50 UTCMay 21, 23:25 UTC35m
2026-05-21 UUD MBW → MBW May 21, 05:05 UTCMay 21, 06:15 UTC1h 10m
2026-05-21 UUD MBW → MBW May 21, 03:10 UTCMay 21, 03:55 UTC45m
2026-05-20 UUD MBW → MBW May 20, 23:15 UTCMay 21, 00:00 UTC45m
2026-05-16 UUD MBW → MBW May 16, 02:35 UTCMay 16, 03:20 UTC45m
2026-05-15 UUD MBW → MBW May 15, 22:25 UTCMay 15, 23:00 UTC35m
2026-05-15 UUD MBW → MBW May 15, 05:50 UTCMay 15, 06:35 UTC45m
2026-05-15 UUD MBW → MBW May 15, 04:05 UTCMay 15, 04:30 UTC25m
2026-05-15 UUD MBW → MBW May 15, 03:15 UTCMay 15, 03:40 UTC25m
2026-05-14 UUD MBW → MBW May 14, 05:10 UTCMay 14, 05:30 UTC20m
2026-05-13 UUD - May 13, 06:15 UTCMay 13, 07:00 UTC45m
2026-05-13 UUD MBW → MBW May 13, 05:10 UTCMay 13, 05:55 UTC45m
2026-05-13 UUD - May 13, 01:40 UTCMay 13, 01:55 UTC15m
2026-05-11 UUD - May 11, 04:45 UTCMay 11, 05:10 UTC25m
2026-05-10 UUD MBW → MBW May 10, 05:50 UTCMay 10, 06:35 UTC45m
2026-05-10 UUD MBW → MBW May 10, 04:09 UTCMay 10, 04:55 UTC45m
2026-05-10 UUD MBW → MBW May 10, 02:30 UTCMay 10, 02:55 UTC25m
2026-05-10 UUD MBW → MBW May 10, 00:55 UTCMay 10, 01:34 UTC40m
2026-05-08 UUD MBW → MBW May 8, 03:49 UTCMay 8, 04:09 UTC20m
2026-05-06 UUD MBW → MBW May 6, 02:15 UTCMay 6, 03:20 UTC1h 5m
2026-05-06 UUD MBW → MBW May 6, 00:05 UTCMay 6, 00:55 UTC50m

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 20h 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.