Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C7BA9

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-YPN · DIAMOND DA-40 Club Star · operated by AUSTRALIAN INTERNATIONAL AVIATION COLLEGE PTY LTD

Hex
7C7BA9
Octal
37075651
Decimal
8,158,121
Country
AU
Tail
VH-YPN
Type
DA40
Broadcasting now · callsign YPN · 2,250 ft
Flights observed
144
Distinct callsigns
1
Country
AU
Last broadcast
51m ago

Current position

7C7BA9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C7BA9 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
YPN - 144 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 YPN - Jul 14, 05:35 UTCJul 14, 05:45 UTC10m
2026-07-14 YPN - Jul 14, 04:05 UTCJul 14, 04:40 UTC35m
2026-07-14 YPN - Jul 14, 02:35 UTCJul 14, 02:45 UTC10m
2026-07-14 YPN - Jul 14, 00:10 UTCJul 14, 00:40 UTC30m
2026-07-13 YPN - Jul 13, 10:30 UTCJul 13, 11:00 UTC30m
2026-07-13 YPN - Jul 13, 08:35 UTCJul 13, 09:30 UTC55m
2026-07-13 YPN - Jul 13, 06:15 UTCJul 13, 06:40 UTC25m
2026-07-13 YPN - Jul 13, 05:20 UTCJul 13, 05:31 UTC10m
2026-07-13 YPN - Jul 13, 03:55 UTCJul 13, 04:15 UTC20m
2026-07-13 YPN - Jul 13, 02:30 UTCJul 13, 03:05 UTC35m
2026-07-13 YPN - Jul 13, 00:05 UTCJul 13, 00:35 UTC30m
2026-07-12 YPN - Jul 12, 22:30 UTCJul 12, 23:05 UTC35m
2026-07-11 YPN - Jul 11, 04:40 UTCJul 11, 05:31 UTC50m
2026-07-11 YPN - Jul 11, 02:55 UTCJul 11, 03:05 UTC10m
2026-07-11 YPN - Jul 11, 01:35 UTCJul 11, 01:55 UTC20m
2026-07-10 YPN - Jul 10, 23:45 UTCJul 11, 00:55 UTC1h 10m
2026-07-10 YPN - Jul 10, 22:55 UTCJul 10, 23:10 UTC15m
2026-07-10 YPN - Jul 10, 04:05 UTCJul 10, 05:10 UTC1h 5m
2026-07-10 YPN - Jul 10, 02:50 UTCJul 10, 03:15 UTC25m
2026-07-10 YPN - Jul 10, 00:15 UTCJul 10, 01:15 UTC1h 0m
2026-07-09 YPN - Jul 9, 22:20 UTCJul 9, 22:30 UTC10m
2026-07-09 YPN - Jul 9, 06:05 UTCJul 9, 06:50 UTC45m
2026-07-09 YPN - Jul 9, 04:50 UTCJul 9, 05:05 UTC15m
2026-07-09 YPN - Jul 9, 03:35 UTCJul 9, 04:05 UTC30m
2026-07-09 YPN - Jul 9, 01:30 UTCJul 9, 03:05 UTC1h 35m
2026-07-08 YPN PQQ → PQQ Jul 8, 23:35 UTCJul 9, 00:30 UTC55m
2026-07-08 YPN - Jul 8, 07:00 UTCJul 8, 07:20 UTC20m
2026-07-06 YPN - Jul 6, 05:55 UTCJul 6, 07:05 UTC1h 10m
2026-07-06 YPN - Jul 6, 05:10 UTCJul 6, 05:20 UTC10m
2026-07-06 YPN - Jul 6, 04:30 UTCJul 6, 04:40 UTC10m
2026-07-04 YPN - Jul 4, 06:20 UTCJul 4, 06:45 UTC25m
2026-07-04 YPN - Jul 4, 03:50 UTCJul 4, 04:00 UTC10m
2026-07-04 YPN - Jul 4, 02:05 UTCJul 4, 02:40 UTC35m
2026-07-03 YPN - Jul 3, 23:40 UTCJul 3, 23:50 UTC10m
2026-07-03 YPN - Jul 3, 22:15 UTCJul 3, 22:50 UTC35m
2026-07-03 YPN - Jul 3, 02:55 UTCJul 3, 03:40 UTC45m
2026-07-03 YPN - Jul 3, 01:00 UTCJul 3, 01:20 UTC20m
2026-06-17 YPN - Jun 17, 05:30 UTCJun 17, 06:15 UTC45m
2026-06-17 YPN PQQ → PQQ Jun 17, 03:35 UTCJun 17, 04:05 UTC30m
2026-06-17 YPN PQQ → PQQ Jun 17, 02:00 UTCJun 17, 02:50 UTC50m
2026-06-16 YPN PQQ → PQQ Jun 16, 23:40 UTCJun 17, 00:35 UTC55m
2026-06-16 YPN PQQ → PQQ Jun 16, 22:15 UTCJun 16, 23:20 UTC1h 5m
2026-06-16 YPN PQQ → PQQ Jun 16, 04:10 UTCJun 16, 05:20 UTC1h 10m
2026-06-15 YPN PQQ → PQQ Jun 15, 22:40 UTCJun 15, 23:35 UTC55m
2026-06-15 YPN PQQ → PQQ Jun 15, 03:10 UTCJun 15, 04:00 UTC50m
2026-06-13 YPN - Jun 13, 01:50 UTCJun 13, 02:05 UTC15m
2026-06-12 YPN - Jun 12, 23:55 UTCJun 13, 00:05 UTC10m
2026-06-12 YPN PQQ → PQQ Jun 12, 04:45 UTCJun 12, 05:40 UTC55m
2026-06-12 YPN PQQ → PQQ Jun 12, 02:40 UTCJun 12, 03:45 UTC1h 5m
2026-06-12 YPN - Jun 12, 01:30 UTCJun 12, 01:45 UTC15m

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

Mode-S 7C7BA9 frequently asked

What is Mode-S code 7C7BA9?
7C7BA9 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YPN.
Where is Mode-S 7C7BA9 registered?
Mode-S code 7C7BA9 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7BA9 broadcasting right now?
Yes. Mode-S 7C7BA9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7BA9, octal 37075651, decimal 8,158,121.
What flights does 7C7BA9 operate?
Mode-S 7C7BA9 has broadcast 1 distinct callsign, including YPN.