Apparatus

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sensors Mode-S transponder

4CADA9

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IND · AIRBUS A-320neo

Hex
4CADA9
Octal
23126651
Decimal
5,025,193
Country
IE
Tail
EI-IND
Type
A20N
No current signal · last broadcast 21d ago
Flights observed
137
Distinct callsigns
20
Country
IE
Last broadcast
21d ago

Last known position

Most recent position reported by Mode-S 4CADA9.

Country allocation

The ICAO 24-bit address 4CADA9 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
ITY2109 - 4 2026-07-12
ITY2080 - 3 2026-07-15
ITY1783 ITA Airways 3 2026-07-26
ITY110 ITA Airways 3 2026-07-26
ITY109 ITA Airways 3 2026-07-26
ITY8006 - 2 2026-07-06
ITY427 - 2 2026-07-17
ITY426 - 2 2026-07-17
ITY333 ITA Airways 2 2026-07-12
ITY332 - 2 2026-07-23
ITY319 - 2 2026-07-21
ITY318 - 2 2026-07-12
ITY317 ITA Airways 2 2026-07-24
ITY316 ITA Airways 2 2026-07-21
ITY2130 - 2 2026-07-14
ITY2092 - 2 2026-07-16
ITY1789 - 2 2026-07-09
ITY1774 - 2 2026-07-10
ITY1731 ITA Airways 2 2026-07-24
ITY1729 - 2 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY1783 FCO → PMO Jul 26, 21:55 UTCJul 26, 22:15 UTC20m
2026-07-26 ITY109 AMS → FCO Jul 26, 17:20 UTCJul 26, 18:55 UTC1h 35m
2026-07-26 ITY110 FCO → AMS Jul 26, 13:40 UTCJul 26, 15:50 UTC2h 10m
2026-07-26 ITY077 BCN → FCO Jul 26, 10:40 UTCJul 26, 11:55 UTC1h 15m
2026-07-26 ITY074 FCO → BCN Jul 26, 08:00 UTCJul 26, 09:30 UTC1h 30m
2026-07-26 ITY1154 REG → FCO Jul 26, 04:30 UTCJul 26, 05:25 UTC55m
2026-07-25 ITY1161 FCO → REG Jul 25, 21:00 UTCJul 25, 21:40 UTC40m
2026-07-25 ITY1480 VCE → FCO Jul 25, 18:55 UTCJul 25, 19:35 UTC40m
2026-07-25 ITY1467 - Jul 25, 17:00 UTCJul 25, 17:40 UTC40m
2026-07-25 ITY345 NCE → FCO Jul 25, 15:00 UTCJul 25, 15:40 UTC40m
2026-07-25 ITY344 FCO → NCE Jul 25, 12:40 UTCJul 25, 13:30 UTC50m
2026-07-25 ITY1168 SUF → FCO Jul 25, 10:35 UTCJul 25, 11:30 UTC55m
2026-07-25 ITY1165 FCO → SUF Jul 25, 08:40 UTCJul 25, 09:20 UTC40m
2026-07-25 ITY1736 CTA → FCO Jul 25, 05:20 UTCJul 25, 06:30 UTC1h 10m
2026-07-24 ITY1729 - Jul 24, 20:40 UTCJul 24, 21:25 UTC45m
2026-07-24 ITY079 BCN → FCO Jul 24, 17:00 UTCJul 24, 18:15 UTC1h 15m
2026-07-24 ITY076 FCO → BCN Jul 24, 14:05 UTCJul 24, 15:35 UTC1h 30m
2026-07-24 ITY1724 CTA → FCO Jul 24, 10:55 UTCJul 24, 11:50 UTC55m
2026-07-24 ITY1731 FCO → CTA Jul 24, 08:25 UTCJul 24, 09:10 UTC45m
2026-07-24 ITY317 CDG → FCO Jul 24, 04:35 UTCJul 24, 06:05 UTC1h 30m
2026-07-23 ITY332 - Jul 23, 19:50 UTCJul 23, 21:35 UTC1h 45m
2026-07-23 ITY1462 - Jul 23, 15:40 UTCJul 23, 16:20 UTC40m
2026-07-23 ITY1475 FCO → VCE Jul 23, 13:40 UTCJul 23, 14:25 UTC45m
2026-07-23 ITY1168 - Jul 23, 11:05 UTCJul 23, 11:55 UTC50m
2026-07-23 ITY1165 FCO → SUF Jul 23, 08:55 UTCJul 23, 09:35 UTC40m
2026-07-23 ITY1162 SUF → FCO Jul 23, 04:25 UTCJul 23, 05:20 UTC55m
2026-07-22 ITY1173 - Jul 22, 20:55 UTCJul 22, 21:40 UTC45m
2026-07-22 ITY165 BRU → FCO Jul 22, 17:40 UTCJul 22, 19:15 UTC1h 35m
2026-07-22 ITY160 - Jul 22, 14:20 UTCJul 22, 16:10 UTC1h 50m
2026-07-22 ITY2133 LIN → FCO Jul 22, 11:55 UTCJul 22, 12:30 UTC35m
2026-07-22 ITY6BO BRI → FCO Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-21 ITY1603 - Jul 21, 20:35 UTCJul 21, 21:20 UTC45m
2026-07-21 ITY109 - Jul 21, 16:50 UTCJul 21, 18:40 UTC1h 50m
2026-07-21 ITY110 - Jul 21, 13:25 UTCJul 21, 15:30 UTC2h 5m
2026-07-21 ITY319 - Jul 21, 10:15 UTCJul 21, 11:40 UTC1h 25m
2026-07-21 ITY316 FCO → CDG Jul 21, 07:05 UTCJul 21, 08:55 UTC1h 50m
2026-07-21 ITY717 ATH → FCO Jul 21, 03:25 UTCJul 21, 05:00 UTC1h 35m
2026-07-20 ITY722 - Jul 20, 21:40 UTCJul 20, 23:10 UTC1h 30m
2026-07-20 ITY577 - Jul 20, 18:40 UTCJul 20, 19:35 UTC55m
2026-07-20 ITY578 - Jul 20, 16:00 UTCJul 20, 17:15 UTC1h 15m
2026-07-20 ITY081 - Jul 20, 12:20 UTCJul 20, 13:35 UTC1h 15m
2026-07-20 ITY080 - Jul 20, 09:25 UTCJul 20, 10:45 UTC1h 20m
2026-07-20 ITY1770 PMO → FCO Jul 20, 06:35 UTCJul 20, 07:15 UTC40m
2026-07-19 ITY1783 FCO → PMO Jul 19, 21:25 UTCJul 19, 22:00 UTC35m
2026-07-19 ITY1794 - Jul 19, 18:55 UTCJul 19, 19:40 UTC45m
2026-07-19 ITY1795 FCO → PMO Jul 19, 17:05 UTCJul 19, 17:40 UTC35m
2026-07-19 ITY1622 BDS → FCO Jul 19, 14:30 UTCJul 19, 15:25 UTC55m
2026-07-19 ITY1619 FCO → BDS Jul 19, 12:25 UTCJul 19, 13:10 UTC45m
2026-07-18 ITY737 - Jul 18, 16:15 UTCJul 18, 18:00 UTC1h 45m
2026-07-18 ITY736 - Jul 18, 13:15 UTCJul 18, 14:55 UTC1h 40m

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

Mode-S 4CADA9 frequently asked

What is Mode-S code 4CADA9?
4CADA9 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IND.
Where is Mode-S 4CADA9 registered?
Mode-S code 4CADA9 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADA9 broadcasting right now?
No active broadcast right now. Last signal was 21d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADA9, octal 23126651, decimal 5,025,193.
What flights does 4CADA9 operate?
Mode-S 4CADA9 has broadcast 20 distinct callsigns, including ITY2109, ITY2080, ITY1783, ITY110, ITY109.