Apparatus

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sensors Mode-S transponder

4CA85B

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-EIA · AIRBUS A-320

Hex
4CA85B
Octal
23124133
Decimal
5,023,835
Country
IE
Tail
EI-EIA
Type
A320
No current signal · last broadcast 8h ago
Flights observed
499
Distinct callsigns
20
Country
IE
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 4CA85B.

Country allocation

The ICAO 24-bit address 4CA85B 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
EJU63FY easyJet Europe 11 2026-04-24
EJU62ZC easyJet Europe 11 2026-04-24
EJU34ER easyJet Europe 10 2026-04-29
EJU17HC easyJet Europe 9 2026-04-29
ITY427 ITA Airways 8 2026-06-12
ITY426 ITA Airways 8 2026-06-12
ITY2029 - 6 2026-06-30
ITY1723 ITA Airways 6 2026-06-16
EJU5407 - 6 2026-04-24
ITY333 ITA Airways 5 2026-07-02
ITY318 - 5 2026-07-02
ITY1780 - 5 2026-07-11
ITY1767 - 5 2026-07-11
ITY1704 ITA Airways 5 2026-06-16
ITY1605 - 5 2026-06-28
ITY1604 ITA Airways 5 2026-06-11
ITY1601 ITA Airways 5 2026-06-11
ITY1600 - 5 2026-06-28
ITY1569 - 5 2026-06-30
ITY1566 - 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ITY089 - Jul 13, 17:00 UTCJul 13, 18:10 UTC1h 10m
2026-07-13 ITY088 - Jul 13, 13:40 UTCJul 13, 15:00 UTC1h 20m
2026-07-13 ITY863 - Jul 13, 09:45 UTCJul 13, 10:45 UTC1h 0m
2026-07-13 ITY864 - Jul 13, 07:45 UTCJul 13, 08:25 UTC40m
2026-07-13 ITY507 - Jul 13, 03:45 UTCJul 13, 04:45 UTC1h 0m
2026-07-12 ITY510 - Jul 12, 21:30 UTCJul 12, 22:15 UTC45m
2026-07-12 ITY1480 - Jul 12, 17:55 UTCJul 12, 18:35 UTC40m
2026-07-12 ITY1467 - Jul 12, 16:05 UTCJul 12, 16:50 UTC45m
2026-07-12 ITY1178 SUF → FCO Jul 12, 14:01 UTCJul 12, 14:50 UTC50m
2026-07-12 ITY1171 FCO → SUF Jul 12, 12:20 UTCJul 12, 13:01 UTC40m
2026-07-12 ITY1264 - Jul 12, 09:45 UTCJul 12, 10:10 UTC25m
2026-07-12 ITY1263 - Jul 12, 08:05 UTCJul 12, 08:35 UTC30m
2026-07-11 ITY1780 - Jul 11, 19:25 UTCJul 11, 20:05 UTC40m
2026-07-11 ITY1767 - Jul 11, 17:25 UTCJul 11, 17:55 UTC30m
2026-07-11 ITY1622 BDS → FCO Jul 11, 14:15 UTCJul 11, 15:10 UTC55m
2026-07-11 ITY1619 - Jul 11, 12:30 UTCJul 11, 13:20 UTC50m
2026-07-11 ITY1412 - Jul 11, 10:05 UTCJul 11, 11:00 UTC55m
2026-07-11 ITY1421 - Jul 11, 08:05 UTCJul 11, 09:00 UTC55m
2026-07-11 ITY861 - Jul 11, 04:25 UTCJul 11, 05:20 UTC55m
2026-07-10 ITY862 - Jul 10, 21:05 UTCJul 10, 21:55 UTC50m
2026-07-08 ITY8010 - Jul 8, 20:15 UTCJul 8, 20:40 UTC25m
2026-07-06 ITY8010 - Jul 6, 07:20 UTCJul 6, 07:50 UTC30m
2026-07-06 ITY317 - Jul 6, 04:30 UTCJul 6, 06:00 UTC1h 30m
2026-07-05 ITY332 - Jul 5, 20:00 UTCJul 5, 21:45 UTC1h 45m
2026-07-05 ITY325 - Jul 5, 16:40 UTCJul 5, 18:10 UTC1h 30m
2026-07-05 ITY324 - Jul 5, 13:40 UTCJul 5, 15:20 UTC1h 40m
2026-07-05 ITY203 - Jul 5, 10:20 UTCJul 5, 12:10 UTC1h 50m
2026-07-05 ITY202 - Jul 5, 06:30 UTCJul 5, 08:55 UTC2h 25m
2026-07-04 ITY1624 - Jul 4, 09:45 UTCJul 4, 10:35 UTC50m
2026-07-04 ITY1621 - Jul 4, 07:50 UTCJul 4, 08:30 UTC40m
2026-07-04 ITY1774 - Jul 4, 05:35 UTCJul 4, 06:15 UTC40m
2026-07-03 ITY1789 - Jul 3, 20:45 UTCJul 3, 21:15 UTC30m
2026-07-03 ITY1794 - Jul 3, 18:10 UTCJul 3, 19:00 UTC50m
2026-07-03 ITY1795 FCO → PMO Jul 3, 16:05 UTCJul 3, 16:45 UTC40m
2026-07-03 ITY1728 - Jul 3, 06:25 UTCJul 3, 07:20 UTC55m
2026-07-02 ITY1719 FCO → CTA Jul 2, 20:15 UTCJul 2, 21:00 UTC45m
2026-07-02 ITY333 CDG → FCO Jul 2, 13:25 UTCJul 2, 15:00 UTC1h 35m
2026-07-02 ITY318 - Jul 2, 10:20 UTCJul 2, 12:00 UTC1h 40m
2026-07-02 ITY1162 - Jul 2, 04:15 UTCJul 2, 05:00 UTC45m
2026-07-01 ITY1173 - Jul 1, 21:25 UTCJul 1, 22:05 UTC40m
2026-07-01 ITY1480 - Jul 1, 19:30 UTCJul 1, 20:15 UTC45m
2026-07-01 ITY1467 - Jul 1, 16:20 UTCJul 1, 17:05 UTC45m
2026-07-01 ITY1178 SUF → FCO Jul 1, 14:00 UTCJul 1, 14:45 UTC45m
2026-07-01 ITY1171 FCO → SUF Jul 1, 12:10 UTCJul 1, 12:55 UTC45m
2026-07-01 ITY1412 - Jul 1, 09:45 UTCJul 1, 10:35 UTC50m
2026-07-01 ITY1421 - Jul 1, 07:45 UTCJul 1, 08:40 UTC55m
2026-07-01 ITY1356 TRS → FCO Jul 1, 04:40 UTCJul 1, 05:30 UTC50m
2026-06-30 ITY1363 - Jun 30, 20:20 UTCJun 30, 21:05 UTC45m
2026-06-30 ITY1794 - Jun 30, 18:00 UTCJun 30, 18:45 UTC45m
2026-06-30 ITY1795 FCO → PMO Jun 30, 16:00 UTCJun 30, 16:40 UTC40m

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

Mode-S 4CA85B frequently asked

What is Mode-S code 4CA85B?
4CA85B is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-EIA.
Where is Mode-S 4CA85B registered?
Mode-S code 4CA85B is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA85B broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA85B, octal 23124133, decimal 5,023,835.
What flights does 4CA85B operate?
Mode-S 4CA85B has broadcast 20 distinct callsigns, including EJU63FY, EJU62ZC, EJU34ER, EJU17HC, ITY427.