sensors Mode-S transponder

4CAE1D

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HXG · AIRBUS A-321neo

Hex
4CAE1D
Octal
23127035
Decimal
5,025,309
Country
IE
Tail
EI-HXG
Type
A21N
No current signal · last broadcast 12h ago
Flights observed
13
Distinct callsigns
9
Country
IE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4CAE1D.

Country allocation

The ICAO 24-bit address 4CAE1D 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 9 distinct

Callsign Airline Flights Last seen
ITY058 ITA Airways 3 2026-04-13
ITY160 - 2 2026-04-13
ITY108 ITA Airways 2 2026-04-14
ITY897 - 1 2026-04-12
ITY6BO - 1 2026-04-14
ITY165 - 1 2026-04-13
ITY1603 - 1 2026-04-13
ITY107 - 1 2026-04-14
ITY061 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 ITY107 - Apr 14, 10:15 UTCApr 14, 11:05 UTC50m
2026-04-14 ITY108 FCO → AMS Apr 14, 07:10 UTCApr 14, 08:50 UTC1h 40m
2026-04-14 ITY108 FCO → AMS Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-14 ITY6BO - Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 ITY1603 - Apr 13, 20:45 UTCApr 13, 21:30 UTC45m
2026-04-13 ITY165 - Apr 13, 17:15 UTCApr 13, 18:55 UTC1h 40m
2026-04-13 ITY160 - Apr 13, 15:50 UTCApr 13, 15:55 UTC5m
2026-04-13 ITY160 - Apr 13, 14:15 UTCApr 13, 15:55 UTC1h 40m
2026-04-13 ITY061 - Apr 13, 09:55 UTCApr 13, 11:55 UTC2h 0m
2026-04-13 ITY058 FCO → MAD Apr 13, 08:20 UTCApr 13, 08:35 UTC15m
2026-04-13 ITY058 FCO → MAD Apr 13, 07:55 UTCApr 13, 08:35 UTC40m
2026-04-13 ITY058 FCO → MAD Apr 13, 06:30 UTCApr 13, 08:15 UTC1h 45m
2026-04-12 ITY897 - Apr 12, 17:15 UTCApr 12, 18:15 UTC1h 0m

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

Mode-S 4CAE1D frequently asked

What is Mode-S code 4CAE1D?
4CAE1D is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HXG.
Where is Mode-S 4CAE1D registered?
Mode-S code 4CAE1D is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE1D broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE1D, octal 23127035, decimal 5,025,309.
What flights does 4CAE1D operate?
Mode-S 4CAE1D has broadcast 9 distinct callsigns, including ITY058, ITY160, ITY108, ITY897, ITY6BO.