sensors Mode-S transponder

4CAE80

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-TYA · AIRBUS A-330-900

Hex
4CAE80
Octal
23127200
Decimal
5,025,408
Country
IE
Tail
EI-TYA
Type
A339
No current signal · last broadcast 20h ago
Flights observed
10
Distinct callsigns
4
Country
IE
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 4CAE80.

Country allocation

The ICAO 24-bit address 4CAE80 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 4 distinct

Callsign Airline Flights Last seen
ITY678 ITA Airways 4 2026-04-13
ITY679 ITA Airways 3 2026-04-14
ITY609 - 2 2026-04-13
ITY608 ITA Airways 1 2026-04-12

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 ITY679 GRU → FCO Apr 14, 09:10 UTCApr 14, 09:30 UTC20m
2026-04-14 ITY679 GRU → FCO Apr 14, 08:35 UTCApr 14, 09:05 UTC30m
2026-04-13 ITY679 GRU → FCO Apr 13, 22:50 UTCApr 13, 23:40 UTC50m
2026-04-13 ITY678 FCO → GRU Apr 13, 19:55 UTCApr 13, 20:30 UTC35m
2026-04-13 ITY678 FCO → GRU Apr 13, 19:05 UTCApr 13, 20:10 UTC1h 5m
2026-04-13 ITY678 FCO → GRU Apr 13, 11:55 UTCApr 13, 12:10 UTC15m
2026-04-13 ITY678 FCO → GRU Apr 13, 08:45 UTCApr 13, 12:10 UTC3h 25m
2026-04-13 ITY609 - Apr 13, 03:55 UTCApr 13, 04:25 UTC30m
2026-04-13 ITY609 - Apr 13, 01:40 UTCApr 13, 04:15 UTC2h 35m
2026-04-12 ITY608 FCO → JFK Apr 12, 17:15 UTCApr 12, 18:00 UTC45m

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

Mode-S 4CAE80 frequently asked

What is Mode-S code 4CAE80?
4CAE80 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-TYA.
Where is Mode-S 4CAE80 registered?
Mode-S code 4CAE80 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE80 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE80, octal 23127200, decimal 5,025,408.
What flights does 4CAE80 operate?
Mode-S 4CAE80 has broadcast 4 distinct callsigns, including ITY678, ITY679, ITY609, ITY608.