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sensors Mode-S transponder

A230C5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N240HY · AIRBUS HELICOPTERS EC-135/635 · operated by ASPIRUS WAUSAU HOSPITAL INC DBA, ASPIRUS MEDEVAC

Hex
A230C5
Octal
50430305
Decimal
10,629,317
Country
US
Tail
N240HY
Type
EC35
No current signal · last broadcast 12d ago
Flights observed
138
Distinct callsigns
1
Country
US
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S A230C5.

Country allocation

The ICAO 24-bit address A230C5 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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
N240HY - 138 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N240HY - Jul 24, 15:10 UTCJul 24, 15:20 UTC10m
2026-07-24 N240HY - Jul 24, 13:55 UTCJul 24, 14:25 UTC30m
2026-07-23 N240HY - Jul 23, 22:50 UTCJul 23, 23:05 UTC15m
2026-07-23 N240HY - Jul 23, 22:10 UTCJul 23, 22:20 UTC10m
2026-07-23 N240HY - Jul 23, 19:45 UTCJul 23, 21:25 UTC1h 40m
2026-07-22 N240HY - Jul 22, 20:45 UTCJul 22, 21:30 UTC45m
2026-07-22 N240HY - Jul 22, 18:25 UTCJul 22, 18:35 UTC10m
2026-07-21 N240HY - Jul 21, 21:35 UTCJul 21, 22:15 UTC40m
2026-07-20 N240HY - Jul 20, 18:15 UTCJul 20, 18:25 UTC10m
2026-07-04 N240HY - Jul 4, 23:45 UTCJul 5, 00:15 UTC30m
2026-07-04 N240HY - Jul 4, 20:45 UTCJul 4, 21:15 UTC30m
2026-07-04 N240HY - Jul 4, 19:05 UTCJul 4, 19:20 UTC15m
2026-07-04 N240HY - Jul 4, 09:05 UTCJul 4, 09:40 UTC35m
2026-07-01 N240HY - Jul 1, 20:35 UTCJul 1, 21:10 UTC35m
2026-07-01 N240HY - Jul 1, 04:50 UTCJul 1, 06:20 UTC1h 30m
2026-06-30 N240HY - Jun 30, 21:30 UTCJun 30, 22:00 UTC30m
2026-06-30 N240HY - Jun 30, 17:05 UTCJun 30, 17:40 UTC35m
2026-06-30 N240HY - Jun 30, 05:40 UTCJun 30, 06:15 UTC35m
2026-06-29 N240HY - Jun 29, 03:05 UTCJun 29, 03:29 UTC25m
2026-06-28 N240HY - Jun 28, 11:14 UTCJun 28, 11:50 UTC35m
2026-06-28 N240HY - Jun 28, 04:59 UTCJun 28, 06:00 UTC1h 0m
2026-06-27 N240HY - Jun 27, 22:04 UTCJun 27, 22:40 UTC35m
2026-06-26 N240HY - Jun 26, 18:24 UTCJun 26, 19:35 UTC1h 10m
2026-06-23 N240HY - Jun 23, 21:14 UTCJun 23, 21:59 UTC45m
2026-06-23 N240HY - Jun 23, 15:59 UTCJun 23, 17:04 UTC1h 5m
2026-06-23 N240HY - Jun 23, 13:50 UTCJun 23, 14:44 UTC55m
2026-06-22 N240HY - Jun 22, 02:14 UTCJun 22, 02:45 UTC30m
2026-06-21 N240HY - Jun 21, 21:34 UTCJun 21, 21:44 UTC10m
2026-06-19 N240HY - Jun 19, 14:39 UTCJun 19, 14:49 UTC10m
2026-06-19 N240HY - Jun 19, 13:50 UTCJun 19, 13:59 UTC10m
2026-06-19 N240HY - Jun 19, 03:39 UTCJun 19, 04:10 UTC30m
2026-06-18 N240HY - Jun 18, 23:00 UTCJun 18, 23:30 UTC30m
2026-06-18 N240HY - Jun 18, 21:00 UTCJun 18, 21:25 UTC25m
2026-06-16 N240HY - Jun 16, 15:05 UTCJun 16, 15:35 UTC30m
2026-06-16 N240HY - Jun 16, 13:19 UTCJun 16, 14:25 UTC1h 5m
2026-06-15 N240HY - Jun 15, 07:40 UTCJun 15, 09:15 UTC1h 35m
2026-06-15 N240HY - Jun 15, 06:20 UTCJun 15, 07:15 UTC55m
2026-06-15 N240HY - Jun 15, 03:10 UTCJun 15, 03:35 UTC25m
2026-06-15 N240HY - Jun 15, 01:45 UTCJun 15, 02:39 UTC55m
2026-06-14 N240HY - Jun 14, 23:44 UTCJun 14, 23:59 UTC15m
2026-06-14 N240HY - Jun 14, 22:05 UTCJun 14, 22:35 UTC30m
2026-06-12 N240HY - Jun 12, 19:25 UTCJun 12, 20:05 UTC40m
2026-06-12 N240HY - Jun 12, 16:30 UTCJun 12, 16:40 UTC10m
2026-06-10 N240HY - Jun 10, 17:25 UTCJun 10, 18:10 UTC45m
2026-06-09 N240HY - Jun 9, 17:20 UTCJun 9, 17:30 UTC10m
2026-06-09 N240HY - Jun 9, 14:45 UTCJun 9, 15:05 UTC20m
2026-06-07 N240HY - Jun 7, 19:25 UTCJun 7, 20:15 UTC50m
2026-06-07 N240HY - Jun 7, 14:05 UTCJun 7, 14:45 UTC40m
2026-06-06 N240HY - Jun 6, 20:14 UTCJun 6, 21:00 UTC45m
2026-06-04 N240HY - Jun 4, 04:50 UTCJun 4, 05:50 UTC1h 0m

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 N240HY page for operator, model, and routing details .

Mode-S A230C5 frequently asked

What is Mode-S code A230C5?
A230C5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N240HY.
Where is Mode-S A230C5 registered?
Mode-S code A230C5 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A230C5 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A230C5, octal 50430305, decimal 10,629,317.
What flights does A230C5 operate?
Mode-S A230C5 has broadcast 1 distinct callsign, including N240HY.