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sensors Mode-S transponder

4CAE17

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAE17
Octal
23127027
Decimal
5,025,303
Country
IE
Tail
EI-HXA
Type
A21N
No current signal · last broadcast Jul 26, 18:40 UTC
Flights observed
403
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 18:40 UTC

Last known position

Most recent position reported by Mode-S 4CAE17.

Country allocation

The ICAO 24-bit address 4CAE17 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
ITY895 - 17 2026-07-15
ITY897 - 16 2026-07-23
ITY894 - 16 2026-07-14
ITY896 - 14 2026-07-23
ITY319 - 14 2026-07-20
ITY316 ITA Airways 14 2026-07-20
ITY325 - 10 2026-07-26
ITY324 - 10 2026-07-26
ITY203 - 10 2026-07-21
ITY202 ITA Airways 10 2026-07-21
ITY717 - 9 2026-06-23
ITY156 - 9 2026-07-15
ITY108 - 9 2026-06-15
ITY107 ITA Airways 9 2026-06-15
ITY855 ITA Airways 8 2026-07-26
ITY854 ITA Airways 8 2026-07-25
ITY159 - 8 2026-07-15
ITY722 - 6 2026-06-22
ITY721 - 6 2026-07-09
ITY110 ITA Airways 6 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY325 - Jul 26, 17:15 UTCJul 26, 18:40 UTC1h 25m
2026-07-26 ITY324 - Jul 26, 14:25 UTCJul 26, 16:10 UTC1h 45m
2026-07-26 ITY061 MAD → FCO Jul 26, 10:25 UTCJul 26, 12:15 UTC1h 50m
2026-07-26 ITY058 FCO → MAD Jul 26, 06:50 UTCJul 26, 08:55 UTC2h 5m
2026-07-26 ITY855 DSS → FCO Jul 26, 00:00 UTCJul 26, 04:50 UTC4h 50m
2026-07-25 ITY854 FCO → DSS Jul 25, 15:15 UTCJul 25, 20:45 UTC5h 30m
2026-07-25 ITY343 NCE → FCO Jul 25, 12:00 UTCJul 25, 12:45 UTC45m
2026-07-25 ITY348 FCO → NCE Jul 25, 09:35 UTCJul 25, 10:25 UTC50m
2026-07-25 ITY1774 PMO → FCO Jul 25, 05:35 UTCJul 25, 06:25 UTC50m
2026-07-24 ITY1789 FCO → PMO Jul 24, 20:50 UTCJul 24, 21:20 UTC30m
2026-07-24 ITY095 VLC → FCO Jul 24, 17:40 UTCJul 24, 19:10 UTC1h 30m
2026-07-24 ITY094 FCO → VLC Jul 24, 14:40 UTCJul 24, 16:25 UTC1h 45m
2026-07-24 ITY403 - Jul 24, 10:45 UTCJul 24, 12:00 UTC1h 15m
2026-07-24 ITY400 FCO → FRA Jul 24, 07:30 UTCJul 24, 09:10 UTC1h 40m
2026-07-24 ITY861 TUN → FCO Jul 24, 04:40 UTCJul 24, 05:35 UTC55m
2026-07-23 ITY862 FCO → TUN Jul 23, 20:50 UTCJul 23, 21:40 UTC50m
2026-07-23 ITY897 - Jul 23, 15:20 UTCJul 23, 18:25 UTC3h 5m
2026-07-23 ITY896 - Jul 23, 11:25 UTCJul 23, 13:55 UTC2h 30m
2026-07-22 ITY1780 PMO → FCO Jul 22, 19:50 UTCJul 22, 20:30 UTC40m
2026-07-22 ITY1767 FCO → PMO Jul 22, 18:00 UTCJul 22, 18:40 UTC40m
2026-07-22 ITY807 TLV → FCO Jul 22, 12:20 UTCJul 22, 15:45 UTC3h 25m
2026-07-22 ITY809 - Jul 22, 02:35 UTCJul 22, 05:25 UTC2h 50m
2026-07-21 ITY810 FCO → TLV Jul 21, 21:40 UTCJul 22, 00:25 UTC2h 45m
2026-07-21 ITY1BC BDS → FCO Jul 21, 17:35 UTCJul 21, 18:35 UTC1h 0m
2026-07-21 ITY1623 FCO → BDS Jul 21, 16:00 UTCJul 21, 16:45 UTC45m
2026-07-21 ITY203 - Jul 21, 10:00 UTCJul 21, 11:55 UTC1h 55m
2026-07-21 ITY202 FCO → LHR Jul 21, 06:05 UTCJul 21, 08:15 UTC2h 10m
2026-07-20 ITY853 ACC → FCO Jul 20, 14:45 UTCJul 21, 03:45 UTC12h 59m
2026-07-20 ITY319 - Jul 20, 10:25 UTCJul 20, 12:00 UTC1h 35m
2026-07-20 ITY316 FCO → CDG Jul 20, 07:25 UTCJul 20, 09:05 UTC1h 40m
2026-07-19 ITY855 - Jul 19, 23:35 UTCJul 20, 04:25 UTC4h 50m
2026-07-19 ITY854 FCO → DSS Jul 19, 13:30 UTCJul 19, 18:55 UTC5h 25m
2026-07-19 ITY077 - Jul 19, 10:25 UTCJul 19, 11:45 UTC1h 20m
2026-07-19 ITY074 FCO → BCN Jul 19, 07:50 UTCJul 19, 09:15 UTC1h 25m
2026-07-19 ITY341 NCE → FCO Jul 19, 05:10 UTCJul 19, 05:50 UTC40m
2026-07-18 ITY340 FCO → NCE Jul 18, 20:35 UTCJul 18, 21:25 UTC50m
2026-07-18 ITY897 - Jul 18, 15:15 UTCJul 18, 18:05 UTC2h 50m
2026-07-18 ITY896 - Jul 18, 11:20 UTCJul 18, 13:45 UTC2h 25m
2026-07-17 ITY807 - Jul 17, 12:30 UTCJul 17, 15:35 UTC3h 5m
2026-07-17 ITY806 - Jul 17, 08:04 UTCJul 17, 10:50 UTC2h 45m
2026-07-17 ITY809 - Jul 17, 02:30 UTCJul 17, 05:39 UTC3h 10m
2026-07-16 ITY810 - Jul 16, 22:05 UTCJul 17, 00:40 UTC2h 35m
2026-07-16 ITY897 - Jul 16, 16:35 UTCJul 16, 19:30 UTC2h 55m
2026-07-16 ITY896 - Jul 16, 12:25 UTCJul 16, 14:10 UTC1h 45m
2026-07-16 ITY1778 - Jul 16, 04:35 UTCJul 16, 05:25 UTC50m
2026-07-15 ITY1783 FCO → PMO Jul 15, 20:30 UTCJul 15, 21:10 UTC40m
2026-07-15 ITY159 - Jul 15, 10:35 UTCJul 15, 12:10 UTC1h 35m
2026-07-15 ITY156 - Jul 15, 07:10 UTCJul 15, 09:15 UTC2h 5m
2026-07-15 ITY895 - Jul 15, 01:50 UTCJul 15, 04:45 UTC2h 55m
2026-07-14 ITY894 FCO → CAI Jul 14, 20:35 UTCJul 14, 23:15 UTC2h 39m

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

Mode-S 4CAE17 frequently asked

What is Mode-S code 4CAE17?
4CAE17 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HXA.
Where is Mode-S 4CAE17 registered?
Mode-S code 4CAE17 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE17 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE17, octal 23127027, decimal 5,025,303.
What flights does 4CAE17 operate?
Mode-S 4CAE17 has broadcast 20 distinct callsigns, including ITY895, ITY897, ITY894, ITY896, ITY319.