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sensors Mode-S transponder

7C2B59

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-IUJ · AGUSTA AW-139 · operated by INTEGRATED HELICOPTER SERVICES PTY LTD

Hex
7C2B59
Octal
37025531
Decimal
8,137,561
Country
AU
Tail
VH-IUJ
Type
A139
No current signal · last broadcast 1d ago
Flights observed
79
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C2B59.

Country allocation

The ICAO 24-bit address 7C2B59 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
IUJ - 79 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 IUJ WMB → WMB May 28, 23:50 UTCMay 29, 00:45 UTC55m
2026-05-28 IUJ WMB → WMB May 28, 00:05 UTCMay 28, 01:05 UTC1h 0m
2026-05-27 IUJ - May 27, 04:49 UTCMay 27, 05:35 UTC45m
2026-05-27 IUJ - May 27, 03:20 UTCMay 27, 03:50 UTC30m
2026-05-27 IUJ - May 27, 02:09 UTCMay 27, 02:34 UTC25m
2026-05-27 IUJ - May 27, 00:49 UTCMay 27, 01:19 UTC30m
2026-05-26 IUJ - May 26, 23:49 UTCMay 27, 00:14 UTC25m
2026-05-26 IUJ - May 26, 22:29 UTCMay 26, 22:59 UTC30m
2026-05-26 IUJ - May 26, 02:29 UTCMay 26, 03:45 UTC1h 15m
2026-05-25 IUJ WMB → WMB May 25, 23:00 UTCMay 26, 00:00 UTC1h 0m
2026-05-22 IUJ - May 22, 05:40 UTCMay 22, 06:50 UTC1h 10m
2026-05-22 IUJ - May 22, 00:55 UTCMay 22, 01:50 UTC55m
2026-05-21 IUJ WMB → WMB May 21, 21:10 UTCMay 21, 22:25 UTC1h 15m
2026-05-21 IUJ - May 21, 05:45 UTCMay 21, 06:55 UTC1h 10m
2026-05-20 IUJ - May 20, 22:50 UTCMay 20, 23:50 UTC1h 0m
2026-05-19 IUJ WMB → WMB May 19, 22:55 UTCMay 19, 23:50 UTC55m
2026-05-19 IUJ WMB → WMB May 19, 21:00 UTCMay 19, 22:20 UTC1h 20m
2026-05-19 IUJ WMB → WMB May 19, 05:50 UTCMay 19, 07:05 UTC1h 15m
2026-05-19 IUJ - May 19, 03:00 UTCMay 19, 03:55 UTC55m
2026-05-18 IUJ - May 18, 22:55 UTCMay 18, 23:50 UTC55m
2026-05-18 IUJ - May 18, 01:40 UTCMay 18, 02:05 UTC25m
2026-05-18 IUJ - May 18, 00:35 UTCMay 18, 01:00 UTC25m
2026-05-14 IUJ WMB → WMB May 14, 22:50 UTCMay 14, 23:50 UTC1h 0m
2026-05-13 IUJ - May 13, 22:50 UTCMay 13, 23:50 UTC1h 0m
2026-05-13 IUJ - May 13, 21:05 UTCMay 13, 22:15 UTC1h 10m
2026-05-13 IUJ WMB → WMB May 13, 05:45 UTCMay 13, 06:55 UTC1h 10m
2026-05-12 IUJ WMB → WMB May 12, 21:45 UTCMay 12, 23:01 UTC1h 15m
2026-05-12 IUJ - May 12, 05:45 UTCMay 12, 06:55 UTC1h 10m
2026-05-11 IUJ - May 11, 22:00 UTCMay 11, 22:35 UTC34m
2026-05-11 IUJ - May 11, 05:45 UTCMay 11, 06:55 UTC1h 10m
2026-05-11 IUJ - May 11, 00:49 UTCMay 11, 02:05 UTC1h 15m
2026-05-09 IUJ - May 9, 03:30 UTCMay 9, 04:30 UTC1h 0m
2026-05-09 IUJ - May 9, 02:20 UTCMay 9, 02:45 UTC25m
2026-05-09 IUJ - May 9, 00:55 UTCMay 9, 01:25 UTC30m
2026-05-08 IUJ - May 8, 23:05 UTCMay 9, 00:10 UTC1h 5m
2026-05-07 IUJ - May 7, 23:24 UTCMay 8, 00:34 UTC1h 10m
2026-05-06 IUJ WMB → WMB May 6, 22:55 UTCMay 7, 00:10 UTC1h 15m
2026-05-05 IUJ WMB → WMB May 5, 23:45 UTCMay 6, 01:01 UTC1h 15m
2026-05-04 IUJ WMB → WMB May 4, 23:20 UTCMay 5, 00:30 UTC1h 10m
2026-05-03 IUJ - May 3, 07:05 UTCMay 3, 07:20 UTC15m
2026-05-02 IUJ WMB → WMB May 2, 23:05 UTCMay 2, 23:40 UTC35m
2026-05-02 IUJ WMB → WMB May 2, 03:00 UTCMay 2, 03:15 UTC15m
2026-05-01 IUJ WMB → WMB May 1, 03:20 UTCMay 1, 04:35 UTC1h 15m
2026-04-30 IUJ - Apr 30, 21:55 UTCApr 30, 22:30 UTC35m
2026-04-30 IUJ - Apr 30, 21:15 UTCApr 30, 21:45 UTC30m
2026-04-30 IUJ - Apr 30, 06:55 UTCApr 30, 07:30 UTC35m
2026-04-30 IUJ - Apr 30, 06:15 UTCApr 30, 06:45 UTC30m
2026-04-29 IUJ WMB → WMB Apr 29, 23:25 UTCApr 30, 00:35 UTC1h 10m
2026-04-29 IUJ - Apr 29, 22:00 UTCApr 29, 22:30 UTC30m
2026-04-29 IUJ - Apr 29, 21:15 UTCApr 29, 21:45 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-IUJ page for operator, model, and routing details .

Mode-S 7C2B59 frequently asked

What is Mode-S code 7C2B59?
7C2B59 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-IUJ.
Where is Mode-S 7C2B59 registered?
Mode-S code 7C2B59 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C2B59 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C2B59, octal 37025531, decimal 8,137,561.
What flights does 7C2B59 operate?
Mode-S 7C2B59 has broadcast 1 distinct callsign, including IUJ.