Apparatus

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sensors Mode-S transponder

4CA730

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DSX · AIRBUS A-320

Hex
4CA730
Octal
23123460
Decimal
5,023,536
Country
IE
Tail
EI-DSX
Type
A320
No current signal · last broadcast 7h ago
Flights observed
548
Distinct callsigns
20
Country
IE
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4CA730.

Country allocation

The ICAO 24-bit address 4CA730 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 20 distinct

Callsign Airline Flights Last seen
ITY1617 - 32 2026-07-13
ITY1612 - 31 2026-07-13
ITY1168 - 24 2026-07-12
ITY1165 - 24 2026-07-12
ITY1795 ITA Airways 20 2026-07-10
ITY1794 - 19 2026-07-10
ITY1745 ITA Airways 18 2026-07-08
ITY1606 - 18 2026-07-12
ITY1735 - 17 2026-07-08
ITY1726 ITA Airways 17 2026-07-08
ITY1607 - 16 2026-07-12
ITY1774 - 15 2026-07-13
ITY1622 ITA Airways 13 2026-07-10
ITY1619 - 13 2026-07-10
ITY1736 - 11 2026-07-09
ITY1783 - 8 2026-07-13
ITY1475 - 8 2026-07-13
ITY1462 - 8 2026-07-13
ITY1789 - 7 2026-07-10
ITY1616 - 7 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ITY1783 - Jul 13, 20:50 UTCJul 13, 21:35 UTC45m
2026-07-13 ITY1712 - Jul 13, 18:25 UTCJul 13, 19:20 UTC55m
2026-07-13 ITY1733 - Jul 13, 16:20 UTCJul 13, 17:05 UTC45m
2026-07-13 ITY1462 - Jul 13, 14:05 UTCJul 13, 14:50 UTC45m
2026-07-13 ITY1475 - Jul 13, 12:10 UTCJul 13, 12:50 UTC40m
2026-07-13 ITY1612 - Jul 13, 09:35 UTCJul 13, 10:20 UTC45m
2026-07-13 ITY1617 - Jul 13, 08:01 UTCJul 13, 08:40 UTC40m
2026-07-13 ITY1774 - Jul 13, 05:40 UTCJul 13, 06:30 UTC50m
2026-07-12 ITY1783 - Jul 12, 20:30 UTCJul 12, 21:05 UTC35m
2026-07-12 ITY1606 - Jul 12, 17:30 UTCJul 12, 18:10 UTC40m
2026-07-12 ITY1607 - Jul 12, 15:55 UTCJul 12, 16:30 UTC35m
2026-07-12 ITY1616 - Jul 12, 13:55 UTCJul 12, 14:40 UTC45m
2026-07-12 ITY1613 - Jul 12, 12:10 UTCJul 12, 12:40 UTC30m
2026-07-12 ITY1168 - Jul 12, 09:45 UTCJul 12, 10:35 UTC50m
2026-07-12 ITY1165 - Jul 12, 07:55 UTCJul 12, 08:45 UTC50m
2026-07-11 ITY1712 - Jul 11, 18:15 UTCJul 11, 19:10 UTC55m
2026-07-11 ITY1733 - Jul 11, 16:20 UTCJul 11, 17:05 UTC45m
2026-07-11 ITY1462 - Jul 11, 13:35 UTCJul 11, 14:15 UTC40m
2026-07-11 ITY1475 - Jul 11, 12:00 UTCJul 11, 12:40 UTC40m
2026-07-11 ITY1624 - Jul 11, 09:25 UTCJul 11, 10:20 UTC55m
2026-07-11 ITY1621 - Jul 11, 07:45 UTCJul 11, 08:30 UTC45m
2026-07-11 ITY1778 - Jul 11, 04:10 UTCJul 11, 05:01 UTC50m
2026-07-10 ITY1789 - Jul 10, 20:10 UTCJul 10, 20:55 UTC45m
2026-07-10 ITY1794 - Jul 10, 18:15 UTCJul 10, 19:00 UTC45m
2026-07-10 ITY1795 FCO → PMO Jul 10, 16:05 UTCJul 10, 16:40 UTC35m
2026-07-10 ITY1622 BDS → FCO Jul 10, 14:00 UTCJul 10, 14:50 UTC50m
2026-07-10 ITY1619 - Jul 10, 12:15 UTCJul 10, 13:00 UTC45m
2026-07-10 ITY1612 - Jul 10, 10:00 UTCJul 10, 10:45 UTC45m
2026-07-10 ITY1617 - Jul 10, 08:20 UTCJul 10, 09:00 UTC40m
2026-07-09 ITY1794 - Jul 9, 18:30 UTCJul 9, 19:10 UTC40m
2026-07-09 ITY1795 FCO → PMO Jul 9, 16:40 UTCJul 9, 17:20 UTC40m
2026-07-09 ITY1622 BDS → FCO Jul 9, 14:15 UTCJul 9, 15:05 UTC50m
2026-07-09 ITY1619 - Jul 9, 12:30 UTCJul 9, 13:15 UTC45m
2026-07-09 ITY1168 - Jul 9, 09:55 UTCJul 9, 10:50 UTC55m
2026-07-09 ITY1165 - Jul 9, 08:00 UTCJul 9, 08:50 UTC50m
2026-07-09 ITY1736 - Jul 9, 05:20 UTCJul 9, 06:15 UTC55m
2026-07-08 ITY1735 - Jul 8, 20:30 UTCJul 8, 21:20 UTC50m
2026-07-08 ITY1606 - Jul 8, 18:25 UTCJul 8, 19:15 UTC50m
2026-07-08 ITY1607 - Jul 8, 16:55 UTCJul 8, 17:30 UTC35m
2026-07-08 ITY1726 CTA → FCO Jul 8, 14:30 UTCJul 8, 15:25 UTC55m
2026-07-08 ITY1745 FCO → CTA Jul 8, 12:20 UTCJul 8, 13:05 UTC45m
2026-07-08 ITY1612 - Jul 8, 09:55 UTCJul 8, 10:45 UTC50m
2026-07-08 ITY1617 - Jul 8, 08:10 UTCJul 8, 08:50 UTC40m
2026-07-08 ITY1722 - Jul 8, 04:15 UTCJul 8, 05:15 UTC1h 0m
2026-07-07 ITY1729 - Jul 7, 18:50 UTCJul 7, 19:30 UTC40m
2026-07-07 ITY8726 - Jul 7, 15:25 UTCJul 7, 16:20 UTC55m
2026-07-07 ITY8745 - Jul 7, 12:55 UTCJul 7, 13:40 UTC45m
2026-07-07 ITY1612 - Jul 7, 10:20 UTCJul 7, 11:05 UTC45m
2026-07-07 ITY1617 - Jul 7, 08:35 UTCJul 7, 09:15 UTC40m
2026-07-06 ITY8003 - Jul 6, 22:50 UTCJul 6, 23:45 UTC55m

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 EI-DSX page for operator, model, and routing details .

Mode-S 4CA730 frequently asked

What is Mode-S code 4CA730?
4CA730 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DSX.
Where is Mode-S 4CA730 registered?
Mode-S code 4CA730 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA730 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA730, octal 23123460, decimal 5,023,536.
What flights does 4CA730 operate?
Mode-S 4CA730 has broadcast 20 distinct callsigns, including ITY1617, ITY1612, ITY1168, ITY1165, ITY1795.