Apparatus

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sensors Mode-S transponder

4CAAA8

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IMW · AIRBUS A-319

Hex
4CAAA8
Octal
23125250
Decimal
5,024,424
Country
IE
Tail
EI-IMW
Type
A319
No current signal · last broadcast Jul 26, 15:15 UTC
Flights observed
514
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 15:15 UTC

Last known position

Most recent position reported by Mode-S 4CAAA8.

Country allocation

The ICAO 24-bit address 4CAAA8 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
ITY1681 - 17 2026-07-18
ITY1676 ITA Airways 17 2026-07-19
ITY1678 ITA Airways 15 2026-07-26
ITY1675 ITA Airways 15 2026-07-26
ITY1682 ITA Airways 12 2026-06-12
ITY1677 ITA Airways 12 2026-06-12
ITY1157 - 12 2026-07-26
ITY1156 ITA Airways 12 2026-07-26
ITY1198 - 11 2026-07-15
ITY1197 - 11 2026-07-15
ITY1195 - 10 2026-07-14
ITY1BC ITA Airways 9 2026-07-18
ITY1623 ITA Airways 9 2026-07-18
ITY1196 - 9 2026-07-14
ITY1684 ITA Airways 8 2026-06-13
ITY1679 ITA Airways 8 2026-06-13
ITY1641 - 8 2026-07-12
ITY4LI ITA Airways 7 2026-06-02
ITY3OL - 7 2026-07-14
ITY356 - 7 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY1156 REG → FCO Jul 26, 14:20 UTCJul 26, 15:15 UTC55m
2026-07-26 ITY1157 - Jul 26, 12:50 UTCJul 26, 13:35 UTC45m
2026-07-26 ITY1678 FLR → FCO Jul 26, 10:50 UTCJul 26, 11:25 UTC35m
2026-07-26 ITY1675 FCO → FLR Jul 26, 09:00 UTCJul 26, 09:35 UTC35m
2026-07-21 ITY1274 - Jul 21, 19:15 UTCJul 21, 19:40 UTC25m
2026-07-21 ITY1271 - Jul 21, 16:25 UTCJul 21, 16:45 UTC20m
2026-07-21 ITY1156 REG → FCO Jul 21, 13:30 UTCJul 21, 14:25 UTC55m
2026-07-21 ITY1157 - Jul 21, 12:00 UTCJul 21, 12:45 UTC45m
2026-07-19 ITY1676 FLR → FCO Jul 19, 04:45 UTCJul 19, 05:10 UTC25m
2026-07-18 ITY1681 FCO → FLR Jul 18, 20:05 UTCJul 18, 20:35 UTC30m
2026-07-18 ITY1BC BDS → FCO Jul 18, 17:10 UTCJul 18, 18:05 UTC55m
2026-07-18 ITY1623 FCO → BDS Jul 18, 15:30 UTCJul 18, 16:15 UTC45m
2026-07-17 ITY8011 - Jul 17, 12:40 UTCJul 17, 13:05 UTC25m
2026-07-16 ITY1287 - Jul 16, 10:40 UTCJul 16, 11:45 UTC1h 5m
2026-07-16 ITY1642 BDS → LIN Jul 16, 08:00 UTCJul 16, 09:25 UTC1h 25m
2026-07-16 ITY1629 LIN → BDS Jul 16, 05:50 UTCJul 16, 07:00 UTC1h 10m
2026-07-15 ITY1650 - Jul 15, 20:25 UTCJul 15, 21:45 UTC1h 20m
2026-07-15 ITY1639 - Jul 15, 18:20 UTCJul 15, 19:25 UTC1h 5m
2026-07-15 ITY1198 REG → LIN Jul 15, 15:25 UTCJul 15, 16:55 UTC1h 30m
2026-07-15 ITY1197 LIN → REG Jul 15, 13:05 UTCJul 15, 14:30 UTC1h 25m
2026-07-15 ITY1764 - Jul 15, 10:40 UTCJul 15, 12:00 UTC1h 20m
2026-07-15 ITY1785 - Jul 15, 08:50 UTCJul 15, 09:20 UTC30m
2026-07-14 ITY2109 - Jul 14, 17:30 UTCJul 14, 18:15 UTC45m
2026-07-14 ITY2092 - Jul 14, 15:30 UTCJul 14, 16:15 UTC45m
2026-07-14 ITY2071 - Jul 14, 13:15 UTCJul 14, 14:00 UTC45m
2026-07-14 ITY1196 REG → LIN Jul 14, 10:30 UTCJul 14, 12:00 UTC1h 30m
2026-07-14 ITY1195 LIN → REG Jul 14, 08:00 UTCJul 14, 09:20 UTC1h 20m
2026-07-14 ITY3OL ORY → LIN Jul 14, 05:40 UTCJul 14, 06:45 UTC1h 5m
2026-07-13 ITY356 - Jul 13, 18:40 UTCJul 13, 19:45 UTC1h 5m
2026-07-13 ITY2050 - Jul 13, 16:55 UTCJul 13, 17:40 UTC45m
2026-07-13 ITY1270 - Jul 13, 13:35 UTCJul 13, 14:05 UTC30m
2026-07-13 ITY1269 - Jul 13, 11:40 UTCJul 13, 12:10 UTC30m
2026-07-13 ITY2021 - Jul 13, 06:05 UTCJul 13, 06:55 UTC50m
2026-07-12 ITY1650 - Jul 12, 19:50 UTCJul 12, 21:05 UTC1h 15m
2026-07-12 ITY1639 - Jul 12, 17:35 UTCJul 12, 18:45 UTC1h 10m
2026-07-12 ITY1644 BDS → LIN Jul 12, 15:25 UTCJul 12, 16:45 UTC1h 20m
2026-07-12 ITY1641 LIN → BDS Jul 12, 13:20 UTCJul 12, 14:30 UTC1h 10m
2026-07-12 ITY121 AMS → LIN Jul 12, 10:50 UTCJul 12, 12:01 UTC1h 10m
2026-07-12 ITY120 LIN → AMS Jul 12, 08:10 UTCJul 12, 09:40 UTC1h 30m
2026-07-11 ITY1644 BDS → LIN Jul 11, 15:45 UTCJul 11, 17:05 UTC1h 20m
2026-07-11 ITY1641 LIN → BDS Jul 11, 13:30 UTCJul 11, 14:40 UTC1h 10m
2026-07-11 ITY1196 - Jul 11, 10:50 UTCJul 11, 12:10 UTC1h 20m
2026-07-11 ITY1195 - Jul 11, 08:20 UTCJul 11, 09:35 UTC1h 15m
2026-07-11 ITY3OL ORY → LIN Jul 11, 06:01 UTCJul 11, 07:10 UTC1h 10m
2026-07-10 ITY356 LIN → ORY Jul 10, 18:30 UTCJul 10, 19:35 UTC1h 5m
2026-07-10 ITY2050 - Jul 10, 16:35 UTCJul 10, 17:25 UTC50m
2026-07-10 ITY2059 - Jul 10, 14:20 UTCJul 10, 15:10 UTC50m
2026-07-10 ITY1764 - Jul 10, 10:50 UTCJul 10, 12:05 UTC1h 15m
2026-07-10 ITY1765 - Jul 10, 08:30 UTCJul 10, 09:40 UTC1h 10m
2026-07-10 ITY3OL ORY → LIN Jul 10, 06:05 UTCJul 10, 07:15 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 EI-IMW page for operator, model, and routing details .

Mode-S 4CAAA8 frequently asked

What is Mode-S code 4CAAA8?
4CAAA8 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IMW.
Where is Mode-S 4CAAA8 registered?
Mode-S code 4CAAA8 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAAA8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAAA8, octal 23125250, decimal 5,024,424.
What flights does 4CAAA8 operate?
Mode-S 4CAAA8 has broadcast 20 distinct callsigns, including ITY1681, ITY1676, ITY1678, ITY1675, ITY1682.