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sensors Mode-S transponder

7C28BB

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-IBX · PIPER PA-28-140/150/160/180 · operated by SCHOFIELDS FLYING CLUB LTD

Hex
7C28BB
Octal
37024273
Decimal
8,136,891
Country
AU
Tail
VH-IBX
Type
P28A
No current signal · last broadcast 3h ago
Flights observed
64
Distinct callsigns
1
Country
AU
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 7C28BB.

Country allocation

The ICAO 24-bit address 7C28BB 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
IBX - 64 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 IBX BWU → BWU Jul 23, 00:55 UTCJul 23, 02:00 UTC1h 5m
2026-07-22 IBX - Jul 22, 04:00 UTCJul 22, 05:10 UTC1h 10m
2026-07-22 IBX BWU → BWU Jul 22, 01:45 UTCJul 22, 02:50 UTC1h 5m
2026-07-21 IBX BWU → BWU Jul 21, 23:30 UTCJul 22, 00:50 UTC1h 20m
2026-07-21 IBX BWU → BWU Jul 21, 21:35 UTCJul 21, 22:35 UTC1h 0m
2026-07-21 IBX BWU → BWU Jul 21, 03:50 UTCJul 21, 06:35 UTC2h 45m
2026-07-21 IBX BWU → BWU Jul 21, 00:40 UTCJul 21, 01:50 UTC1h 10m
2026-07-20 IBX BWU → BWU Jul 20, 22:40 UTCJul 20, 23:40 UTC1h 0m
2026-07-20 IBX - Jul 20, 03:10 UTCJul 20, 04:00 UTC50m
2026-07-20 IBX - Jul 20, 01:35 UTCJul 20, 02:35 UTC1h 0m
2026-07-19 IBX BWU → BWU Jul 19, 23:10 UTCJul 20, 00:40 UTC1h 30m
2026-07-19 IBX BWU → BWU Jul 19, 05:40 UTCJul 19, 06:45 UTC1h 5m
2026-07-19 IBX BWU → BWU Jul 19, 03:25 UTCJul 19, 04:30 UTC1h 5m
2026-07-19 IBX BWU → BWU Jul 19, 01:00 UTCJul 19, 02:05 UTC1h 5m
2026-07-18 IBX BWU → BWU Jul 18, 22:45 UTCJul 18, 23:45 UTC1h 0m
2026-07-18 IBX BWU → BWU Jul 18, 03:40 UTCJul 18, 04:50 UTC1h 10m
2026-07-18 IBX BWU → BWU Jul 18, 01:20 UTCJul 18, 02:09 UTC50m
2026-07-16 IBX BWU → BWU Jul 16, 05:10 UTCJul 16, 06:10 UTC1h 0m
2026-07-14 IBX BWU → BWU Jul 14, 21:55 UTCJul 14, 23:05 UTC1h 9m
2026-07-13 IBX BWU → BWU Jul 13, 21:45 UTCJul 13, 23:20 UTC1h 35m
2026-07-13 IBX BWU → BWU Jul 13, 05:15 UTCJul 13, 06:35 UTC1h 20m
2026-07-11 IBX BWU → BWU Jul 11, 05:40 UTCJul 11, 07:00 UTC1h 20m
2026-07-11 IBX BWU → BWU Jul 11, 03:25 UTCJul 11, 04:25 UTC1h 0m
2026-07-11 IBX BWU → BWU Jul 11, 00:40 UTCJul 11, 01:40 UTC1h 0m
2026-07-09 IBX BWU → BWU Jul 9, 03:05 UTCJul 9, 04:55 UTC1h 50m
2026-07-09 IBX BWU → BWU Jul 9, 00:05 UTCJul 9, 02:00 UTC1h 55m
2026-07-08 IBX BWU → BWU Jul 8, 01:25 UTCJul 8, 02:25 UTC1h 0m
2026-07-07 IBX BWU → BWU Jul 7, 22:50 UTCJul 8, 00:00 UTC1h 10m
2026-07-07 IBX BWU → BWU Jul 7, 00:40 UTCJul 7, 01:40 UTC1h 0m
2026-07-03 IBX BWU → BWU Jul 3, 21:15 UTCJul 3, 21:25 UTC10m
2026-07-02 IBX BWU → BWU Jul 2, 21:40 UTCJul 2, 23:15 UTC1h 35m
2026-07-01 IBX BWU → BWU Jul 1, 04:20 UTCJul 1, 06:35 UTC2h 15m
2026-07-01 IBX BWU → BWU Jul 1, 02:00 UTCJul 1, 03:45 UTC1h 45m
2026-06-24 IBX - Jun 24, 04:44 UTCJun 24, 05:20 UTC35m
2026-06-24 IBX - Jun 24, 01:24 UTCJun 24, 03:55 UTC2h 30m
2026-06-23 IBX BWU → BWU Jun 23, 22:34 UTCJun 24, 00:30 UTC1h 55m
2026-06-23 IBX - Jun 23, 04:55 UTCJun 23, 06:19 UTC1h 25m
2026-06-23 IBX - Jun 23, 02:04 UTCJun 23, 03:15 UTC1h 10m
2026-06-22 IBX BWU → BWU Jun 22, 22:05 UTCJun 22, 23:50 UTC1h 45m
2026-06-21 IBX BWU → BWU Jun 21, 23:55 UTCJun 22, 02:25 UTC2h 30m
2026-06-21 IBX BWU → BWU Jun 21, 05:10 UTCJun 21, 06:29 UTC1h 20m
2026-06-21 IBX BWU → BWU Jun 21, 02:55 UTCJun 21, 04:04 UTC1h 10m
2026-06-20 IBX - Jun 20, 23:50 UTCJun 21, 00:10 UTC20m
2026-06-20 IBX BWU → CDU Jun 20, 22:35 UTCJun 20, 23:10 UTC35m
2026-06-20 IBX - Jun 20, 03:29 UTCJun 20, 04:44 UTC1h 15m
2026-06-18 IBX - Jun 18, 01:45 UTCJun 18, 02:55 UTC1h 10m
2026-06-17 IBX - Jun 17, 23:00 UTCJun 18, 00:30 UTC1h 30m
2026-06-17 IBX - Jun 17, 04:20 UTCJun 17, 07:00 UTC2h 40m
2026-06-17 IBX - Jun 17, 02:55 UTCJun 17, 03:45 UTC50m
2026-06-17 IBX - Jun 17, 00:50 UTCJun 17, 02:10 UTC1h 20m

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

Mode-S 7C28BB frequently asked

What is Mode-S code 7C28BB?
7C28BB is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-IBX.
Where is Mode-S 7C28BB registered?
Mode-S code 7C28BB is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C28BB broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C28BB, octal 37024273, decimal 8,136,891.
What flights does 7C28BB operate?
Mode-S 7C28BB has broadcast 1 distinct callsign, including IBX.