Apparatus

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sensors Mode-S transponder

4CAEFA

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-MVA · AIRBUS A220-100

Hex
4CAEFA
Octal
23127372
Decimal
5,025,530
Country
IE
Tail
EI-MVA
Type
BCS1
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
147
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 4CAEFA.

Country allocation

The ICAO 24-bit address 4CAEFA 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
ITY224 - 9 2026-07-21
ITY247 - 8 2026-07-21
ITY217 ITA Airways 8 2026-07-20
ITY238 - 7 2026-07-21
ITY219 ITA Airways 5 2026-07-22
ITY220 ITA Airways 4 2026-07-22
ITY451 ITA Airways 3 2026-04-16
ITY226 ITA Airways 3 2026-07-22
ITY2045 ITA Airways 3 2026-04-20
ITY453 ITA Airways 2 2026-07-26
ITY452 ITA Airways 2 2026-07-26
ITY450 ITA Airways 2 2026-04-16
ITY350 ITA Airways 2 2026-04-14
ITY227 ITA Airways 2 2026-07-22
ITY2080 ITA Airways 2 2026-07-24
ITY1IP ITA Airways 2 2026-07-26
ITY1753 - 2 2026-04-17
ITY1752 - 2 2026-04-17
ITY1655 - 2 2026-07-15
ITY1654 - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY1IP LIN → PMO Jul 26, 22:05 UTCJul 26, 22:30 UTC25m
2026-07-26 ITY453 MUC → LIN Jul 26, 19:50 UTCJul 26, 20:35 UTC45m
2026-07-26 ITY452 LIN → MUC Jul 26, 17:50 UTCJul 26, 18:40 UTC50m
2026-07-26 ITY1786 PMO → LIN Jul 26, 15:05 UTCJul 26, 16:25 UTC1h 20m
2026-07-26 ITY1787 LIN → PMO Jul 26, 11:35 UTCJul 26, 13:00 UTC1h 25m
2026-07-26 ITY2036 FCO → LIN Jul 26, 09:20 UTCJul 26, 10:05 UTC45m
2026-07-26 ITY2021 LIN → FCO Jul 26, 06:20 UTCJul 26, 07:10 UTC51m
2026-07-25 ITY1650 BRI → LIN Jul 25, 19:50 UTCJul 25, 21:00 UTC1h 10m
2026-07-25 ITY1639 - Jul 25, 17:20 UTCJul 25, 18:35 UTC1h 15m
2026-07-25 ITY313 - Jul 25, 15:15 UTCJul 25, 16:20 UTC1h 5m
2026-07-25 ITY312 - Jul 25, 12:35 UTCJul 25, 13:35 UTC1h 0m
2026-07-25 ITY121 AMS → LIN Jul 25, 10:20 UTCJul 25, 11:40 UTC1h 20m
2026-07-25 ITY120 LIN → AMS Jul 25, 07:25 UTCJul 25, 08:50 UTC1h 25m
2026-07-25 ITY1176 SUF → LIN Jul 25, 04:40 UTCJul 25, 06:10 UTC1h 30m
2026-07-24 ITY1177 LIN → SUF Jul 24, 20:50 UTCJul 24, 22:00 UTC1h 10m
2026-07-24 ITY2114 - Jul 24, 18:50 UTCJul 24, 19:40 UTC50m
2026-07-24 ITY2097 LIN → FCO Jul 24, 16:35 UTCJul 24, 17:30 UTC55m
2026-07-24 ITY2080 FCO → LIN Jul 24, 14:30 UTCJul 24, 15:20 UTC50m
2026-07-24 ITY2133 LIN → FCO Jul 24, 11:15 UTCJul 24, 12:05 UTC50m
2026-07-24 ITY305 CDG → LIN Jul 24, 08:20 UTCJul 24, 09:25 UTC1h 5m
2026-07-24 ITY300 LIN → CDG Jul 24, 05:05 UTCJul 24, 06:20 UTC1h 15m
2026-07-23 ITY113 AMS → LIN Jul 23, 18:40 UTCJul 23, 19:50 UTC1h 10m
2026-07-23 ITY112 LIN → AMS Jul 23, 16:00 UTCJul 23, 17:25 UTC1h 25m
2026-07-23 ITY2092 - Jul 23, 14:05 UTCJul 23, 14:55 UTC50m
2026-07-23 ITY2071 - Jul 23, 11:55 UTCJul 23, 12:40 UTC45m
2026-07-23 ITY221 LCY → LIN Jul 23, 08:30 UTCJul 23, 09:50 UTC1h 20m
2026-07-23 ITY218 LIN → LCY Jul 23, 05:55 UTCJul 23, 07:25 UTC1h 30m
2026-07-22 ITY219 LCY → LIN Jul 22, 18:25 UTCJul 22, 19:45 UTC1h 20m
2026-07-22 ITY220 LIN → LCY Jul 22, 16:00 UTCJul 22, 17:30 UTC1h 30m
2026-07-22 ITY227 LCY → LIN Jul 22, 13:00 UTCJul 22, 14:30 UTC1h 30m
2026-07-22 ITY226 LIN → LCY Jul 22, 11:10 UTCJul 22, 12:05 UTC55m
2026-07-21 ITY224 LIN → LCY Jul 21, 18:20 UTCJul 21, 19:50 UTC1h 30m
2026-07-21 ITY247 LCY → LIN Jul 21, 15:45 UTCJul 21, 17:10 UTC1h 25m
2026-07-21 ITY238 - Jul 21, 13:20 UTCJul 21, 14:55 UTC1h 35m
2026-07-21 ITY1718 CTA → LIN Jul 21, 10:35 UTCJul 21, 12:10 UTC1h 35m
2026-07-21 ITY1727 LIN → CTA Jul 21, 07:00 UTCJul 21, 08:30 UTC1h 30m
2026-07-21 ITY1768 PMO → LIN Jul 21, 04:40 UTCJul 21, 06:00 UTC1h 20m
2026-07-20 ITY1IP LIN → PMO Jul 20, 20:30 UTCJul 20, 21:40 UTC1h 10m
2026-07-20 ITY1790 PMO → LIN Jul 20, 18:10 UTCJul 20, 19:25 UTC1h 15m
2026-07-20 ITY1793 LIN → PMO Jul 20, 15:50 UTCJul 20, 17:05 UTC1h 15m
2026-07-20 ITY051 LIN → PMI Jul 20, 13:05 UTCJul 20, 14:15 UTC1h 10m
2026-07-20 ITY050 PMI → LIN Jul 20, 10:40 UTCJul 20, 12:00 UTC1h 20m
2026-07-20 ITY217 LCY → LIN Jul 20, 05:55 UTCJul 20, 07:15 UTC1h 20m
2026-07-19 ITY224 LIN → LCY Jul 19, 19:10 UTCJul 19, 20:45 UTC1h 35m
2026-07-19 ITY247 LCY → LIN Jul 19, 16:45 UTCJul 19, 18:05 UTC1h 20m
2026-07-19 ITY238 LIN → LCY Jul 19, 14:15 UTCJul 19, 15:45 UTC1h 30m
2026-07-19 ITY2032 FCO → LIN Jul 19, 12:30 UTCJul 19, 13:15 UTC45m
2026-07-19 ITY1412 - Jul 19, 09:30 UTCJul 19, 10:20 UTC50m
2026-07-19 ITY1421 - Jul 19, 07:50 UTCJul 19, 08:45 UTC55m
2026-07-19 ITY1736 CTA → FCO Jul 19, 05:20 UTCJul 19, 06:15 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-MVA page for operator, model, and routing details .

Mode-S 4CAEFA frequently asked

What is Mode-S code 4CAEFA?
4CAEFA is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-MVA.
Where is Mode-S 4CAEFA registered?
Mode-S code 4CAEFA is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAEFA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAEFA, octal 23127372, decimal 5,025,530.
What flights does 4CAEFA operate?
Mode-S 4CAEFA has broadcast 20 distinct callsigns, including ITY224, ITY247, ITY217, ITY238, ITY219.