sensors Mode-S transponder

4CAEFE

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-MVE · AIRBUS A220-100

Hex
4CAEFE
Octal
23127376
Decimal
5,025,534
Country
IE
Tail
EI-MVE
Type
BCS1
No current signal · last broadcast 15h ago
Flights observed
12
Distinct callsigns
8
Country
IE
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4CAEFE.

Country allocation

The ICAO 24-bit address 4CAEFE 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 8 distinct

Callsign Airline Flights Last seen
ITY226 - 2 2026-04-14
ITY220 - 2 2026-04-13
ITY219 - 2 2026-04-13
ITY1642 ITA Airways 2 2026-04-14
ITY227 - 1 2026-04-13
ITY224 - 1 2026-04-12
ITY217 ITA Airways 1 2026-04-13
ITY1629 - 1 2026-04-14

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 ITY226 - Apr 14, 10:25 UTCApr 14, 11:05 UTC40m
2026-04-14 ITY1642 BDS → LIN Apr 14, 07:10 UTCApr 14, 08:15 UTC1h 5m
2026-04-14 ITY1642 BDS → LIN Apr 14, 06:55 UTCApr 14, 07:10 UTC15m
2026-04-14 ITY1629 - Apr 14, 05:15 UTCApr 14, 05:45 UTC30m
2026-04-13 ITY219 - Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 ITY219 - Apr 13, 18:40 UTCApr 13, 20:05 UTC1h 25m
2026-04-13 ITY220 - Apr 13, 16:15 UTCApr 13, 17:35 UTC1h 20m
2026-04-13 ITY220 - Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 ITY227 - Apr 13, 12:50 UTCApr 13, 14:25 UTC1h 35m
2026-04-13 ITY226 LIN → LCY Apr 13, 10:30 UTCApr 13, 11:55 UTC1h 25m
2026-04-13 ITY217 LCY → LIN Apr 13, 05:50 UTCApr 13, 07:50 UTC2h 0m
2026-04-12 ITY224 LIN → LCY Apr 12, 18:20 UTCApr 12, 19:40 UTC1h 20m

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

Mode-S 4CAEFE frequently asked

What is Mode-S code 4CAEFE?
4CAEFE is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-MVE.
Where is Mode-S 4CAEFE registered?
Mode-S code 4CAEFE is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAEFE broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAEFE, octal 23127376, decimal 5,025,534.
What flights does 4CAEFE operate?
Mode-S 4CAEFE has broadcast 8 distinct callsigns, including ITY226, ITY220, ITY219, ITY1642, ITY227.