Apparatus

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sensors Mode-S transponder

4CA330

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to 275 · AGUSTA AW-139

Hex
4CA330
Octal
23121460
Decimal
5,022,512
Country
IE
Tail
275
Type
A139
No current signal · last broadcast 4h ago
Flights observed
187
Distinct callsigns
2
Country
IE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4CA330.

Country allocation

The ICAO 24-bit address 4CA330 falls within the block assigned to Ireland (IE) by ICAO Annex 10, Volume III. Every aircraft registered in Ireland 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 2 distinct

Callsign Airline Flights Last seen
AC112 - 175 2026-07-14
AW275 - 12 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AC112 - Jul 14, 13:10 UTCJul 14, 13:25 UTC15m
2026-07-14 AC112 - Jul 14, 11:20 UTCJul 14, 12:35 UTC1h 15m
2026-07-12 AC112 - Jul 12, 09:45 UTCJul 12, 10:20 UTC35m
2026-07-11 AC112 - Jul 11, 15:15 UTCJul 11, 15:30 UTC15m
2026-07-11 AC112 - Jul 11, 14:05 UTCJul 11, 14:20 UTC15m
2026-07-10 AC112 - Jul 10, 15:15 UTCJul 10, 15:35 UTC20m
2026-07-10 AC112 - Jul 10, 11:00 UTCJul 10, 11:10 UTC10m
2026-07-10 AC112 - Jul 10, 10:10 UTCJul 10, 10:20 UTC10m
2026-07-10 AC112 - Jul 10, 08:20 UTCJul 10, 08:55 UTC35m
2026-07-09 AC112 - Jul 9, 13:10 UTCJul 9, 13:40 UTC30m
2026-07-09 AC112 - Jul 9, 10:55 UTCJul 9, 11:20 UTC25m
2026-07-08 AC112 - Jul 8, 16:55 UTCJul 8, 17:20 UTC25m
2026-07-08 AC112 - Jul 8, 14:35 UTCJul 8, 15:15 UTC40m
2026-07-08 AC112 - Jul 8, 13:30 UTCJul 8, 13:40 UTC10m
2026-07-08 AC112 - Jul 8, 12:30 UTCJul 8, 12:45 UTC15m
2026-07-07 AC112 - Jul 7, 17:20 UTCJul 7, 17:55 UTC35m
2026-07-07 AC112 - Jul 7, 15:30 UTCJul 7, 15:45 UTC15m
2026-07-07 AC112 - Jul 7, 14:15 UTCJul 7, 14:35 UTC20m
2026-07-07 AC112 - Jul 7, 12:00 UTCJul 7, 12:15 UTC15m
2026-07-07 AC112 - Jul 7, 11:00 UTCJul 7, 11:15 UTC15m
2026-07-06 AC112 - Jul 6, 14:10 UTCJul 6, 14:55 UTC45m
2026-07-06 AC112 - Jul 6, 13:15 UTCJul 6, 13:35 UTC20m
2026-07-06 AC112 - Jul 6, 12:15 UTCJul 6, 12:40 UTC25m
2026-07-05 AC112 - Jul 5, 19:00 UTCJul 5, 19:25 UTC25m
2026-07-05 AC112 - Jul 5, 18:00 UTCJul 5, 18:10 UTC10m
2026-07-05 AC112 - Jul 5, 15:40 UTCJul 5, 16:35 UTC55m
2026-07-05 AC112 - Jul 5, 14:30 UTCJul 5, 14:50 UTC20m
2026-07-05 AC112 - Jul 5, 13:40 UTCJul 5, 13:50 UTC10m
2026-07-05 AC112 - Jul 5, 11:50 UTCJul 5, 12:10 UTC20m
2026-07-02 AC112 - Jul 2, 16:15 UTCJul 2, 16:30 UTC15m
2026-07-02 AC112 - Jul 2, 15:05 UTCJul 2, 15:25 UTC20m
2026-07-02 AC112 - Jul 2, 10:35 UTCJul 2, 10:55 UTC20m
2026-07-02 AC112 - Jul 2, 09:40 UTCJul 2, 09:50 UTC10m
2026-06-30 AC112 - Jun 30, 19:00 UTCJun 30, 19:35 UTC35m
2026-06-30 AC112 - Jun 30, 17:55 UTCJun 30, 18:15 UTC20m
2026-06-30 AC112 - Jun 30, 16:40 UTCJun 30, 16:55 UTC15m
2026-06-30 AC112 - Jun 30, 13:20 UTCJun 30, 13:35 UTC15m
2026-06-29 AC112 - Jun 29, 18:14 UTCJun 29, 18:49 UTC35m
2026-06-29 AC112 - Jun 29, 17:34 UTCJun 29, 17:55 UTC20m
2026-06-29 AC112 - Jun 29, 16:50 UTCJun 29, 16:59 UTC10m
2026-06-28 AC112 - Jun 28, 17:55 UTCJun 28, 18:19 UTC25m
2026-06-28 AC112 - Jun 28, 16:45 UTCJun 28, 17:04 UTC20m
2026-06-28 AC112 - Jun 28, 14:45 UTCJun 28, 15:09 UTC25m
2026-06-28 AC112 - Jun 28, 13:59 UTCJun 28, 14:09 UTC10m
2026-06-28 AC112 - Jun 28, 11:19 UTCJun 28, 12:44 UTC1h 25m
2026-06-28 AC112 - Jun 28, 10:24 UTCJun 28, 10:39 UTC15m
2026-06-27 AC112 - Jun 27, 09:24 UTCJun 27, 09:34 UTC10m
2026-06-26 AC112 - Jun 26, 14:05 UTCJun 26, 15:29 UTC1h 25m
2026-06-26 AC112 - Jun 26, 12:39 UTCJun 26, 13:34 UTC55m
2026-06-25 AC112 - Jun 25, 14:55 UTCJun 25, 16:05 UTC1h 10m

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 275 page for operator, model, and routing details .

Mode-S 4CA330 frequently asked

What is Mode-S code 4CA330?
4CA330 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to 275.
Where is Mode-S 4CA330 registered?
Mode-S code 4CA330 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA330 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA330, octal 23121460, decimal 5,022,512.
What flights does 4CA330 operate?
Mode-S 4CA330 has broadcast 2 distinct callsigns, including AC112, AW275.