Apparatus

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sensors Mode-S transponder

4CAE1C

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAE1C
Octal
23127034
Decimal
5,025,308
Country
IE
Tail
EI-HXF
Type
A21N
No current signal · last broadcast 3h ago
Flights observed
205
Distinct callsigns
20
Country
IE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4CAE1C.

Country allocation

The ICAO 24-bit address 4CAE1C 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
ITY894 ITA Airways 13 2026-06-06
ITY895 ITA Airways 12 2026-06-07
ITY108 ITA Airways 11 2026-06-06
ITY107 ITA Airways 11 2026-06-06
ITY897 ITA Airways 9 2026-06-05
ITY896 ITA Airways 8 2026-06-05
ITY1710 ITA Airways 8 2026-05-30
ITY1709 ITA Airways 8 2026-05-30
ITY855 ITA Airways 7 2026-05-17
ITY854 ITA Airways 7 2026-06-07
ITY853 ITA Airways 7 2026-06-02
ITY165 ITA Airways 6 2026-06-03
ITY160 ITA Airways 6 2026-06-03
ITY722 ITA Airways 5 2026-06-05
ITY717 ITA Airways 5 2026-06-06
ITY319 ITA Airways 4 2026-06-07
ITY316 ITA Airways 4 2026-06-07
ITY159 ITA Airways 4 2026-05-22
ITY156 ITA Airways 4 2026-05-22
ITY716 ITA Airways 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-07 ITY854 FCO → DSS Jun 7, 13:50 UTCJun 7, 19:00 UTC5h 10m
2026-06-07 ITY319 CDG → FCO Jun 7, 09:55 UTCJun 7, 11:30 UTC1h 35m
2026-06-07 ITY316 FCO → CDG Jun 7, 06:55 UTCJun 7, 08:35 UTC1h 40m
2026-06-07 ITY895 CAI → FCO Jun 7, 02:04 UTCJun 7, 04:50 UTC2h 45m
2026-06-06 ITY894 FCO → CAI Jun 6, 20:14 UTCJun 6, 22:55 UTC2h 40m
2026-06-06 ITY337 MRS → FCO Jun 6, 17:34 UTCJun 6, 18:25 UTC50m
2026-06-06 ITY336 FCO → MRS Jun 6, 15:15 UTCJun 6, 16:10 UTC55m
2026-06-06 ITY107 AMS → FCO Jun 6, 10:14 UTCJun 6, 12:04 UTC1h 50m
2026-06-06 ITY108 FCO → AMS Jun 6, 06:50 UTCJun 6, 08:50 UTC2h 0m
2026-06-06 ITY717 ATH → FCO Jun 6, 03:20 UTCJun 6, 05:00 UTC1h 40m
2026-06-05 ITY722 FCO → ATH Jun 5, 20:40 UTCJun 5, 22:10 UTC1h 30m
2026-06-05 ITY897 CAI → FCO Jun 5, 15:35 UTCJun 5, 18:25 UTC2h 50m
2026-06-05 ITY896 FCO → CAI Jun 5, 11:40 UTCJun 5, 14:10 UTC2h 30m
2026-06-05 ITY1264 NAP → FCO Jun 5, 09:25 UTCJun 5, 09:50 UTC25m
2026-06-05 ITY1263 FCO → NAP Jun 5, 07:35 UTCJun 5, 08:00 UTC25m
2026-06-05 ITY895 CAI → FCO Jun 5, 02:20 UTCJun 5, 05:15 UTC2h 55m
2026-06-04 ITY894 FCO → CAI Jun 4, 20:20 UTCJun 4, 22:50 UTC2h 30m
2026-06-04 ITY325 CDG → FCO Jun 4, 16:50 UTCJun 4, 18:25 UTC1h 35m
2026-06-04 ITY324 FCO → CDG Jun 4, 13:30 UTCJun 4, 15:25 UTC1h 55m
2026-06-04 ITY203 LHR → FCO Jun 4, 10:10 UTCJun 4, 12:00 UTC1h 50m
2026-06-04 ITY202 FCO → LHR Jun 4, 06:15 UTCJun 4, 08:35 UTC2h 20m
2026-06-03 ITY165 BRU → FCO Jun 3, 17:15 UTCJun 3, 18:50 UTC1h 35m
2026-06-03 ITY160 FCO → BRU Jun 3, 14:10 UTCJun 3, 16:10 UTC2h 0m
2026-06-03 ITY203 LHR → FCO Jun 3, 10:15 UTCJun 3, 12:05 UTC1h 50m
2026-06-03 ITY202 FCO → LHR Jun 3, 06:25 UTCJun 3, 08:50 UTC2h 25m
2026-06-02 ITY853 ACC → FCO Jun 2, 15:00 UTCJun 3, 04:20 UTC13h 20m
2026-06-02 ITY061 MAD → FCO Jun 2, 10:05 UTCJun 2, 11:50 UTC1h 45m
2026-06-02 ITY058 FCO → MAD Jun 2, 06:25 UTCJun 2, 08:25 UTC2h 0m
2026-06-01 ITY325 CDG → FCO Jun 1, 16:20 UTCJun 1, 17:45 UTC1h 25m
2026-06-01 ITY324 FCO → CDG Jun 1, 13:25 UTCJun 1, 15:05 UTC1h 40m
2026-06-01 ITY107 AMS → FCO Jun 1, 10:05 UTCJun 1, 11:45 UTC1h 40m
2026-06-01 ITY108 FCO → AMS Jun 1, 06:45 UTCJun 1, 08:50 UTC2h 5m
2026-06-01 ITY1722 CTA → FCO Jun 1, 04:15 UTCJun 1, 05:10 UTC55m
2026-05-31 ITY1735 FCO → CTA May 31, 20:45 UTCMay 31, 21:35 UTC50m
2026-05-31 ITY2061 LIN → FCO May 31, 15:35 UTCMay 31, 16:15 UTC40m
2026-05-31 ITY2038 FCO → LIN May 31, 13:30 UTCMay 31, 14:20 UTC50m
2026-05-31 ITY1264 NAP → FCO May 31, 10:00 UTCMay 31, 10:30 UTC30m
2026-05-31 ITY1263 FCO → NAP May 31, 08:25 UTCMay 31, 08:40 UTC15m
2026-05-30 ITY894 FCO → CAI May 30, 20:30 UTCMay 30, 23:10 UTC2h 40m
2026-05-30 ITY109 AMS → FCO May 30, 16:20 UTCMay 30, 18:05 UTC1h 45m
2026-05-30 ITY110 FCO → AMS May 30, 12:50 UTCMay 30, 14:55 UTC2h 5m
2026-05-30 ITY1710 CTA → FCO May 30, 08:30 UTCMay 30, 09:25 UTC55m
2026-05-30 ITY1709 FCO → CTA May 30, 06:30 UTCMay 30, 07:20 UTC50m
2026-05-30 ITY895 CAI → FCO May 30, 01:55 UTCMay 30, 04:40 UTC2h 45m
2026-05-29 ITY894 FCO → CAI May 29, 20:35 UTCMay 29, 23:05 UTC2h 30m
2026-05-29 ITY897 CAI → FCO May 29, 15:20 UTCMay 29, 18:05 UTC2h 45m
2026-05-29 ITY896 FCO → CAI May 29, 11:10 UTCMay 29, 13:35 UTC2h 25m
2026-05-29 ITY1710 CTA → FCO May 29, 08:35 UTCMay 29, 09:25 UTC50m
2026-05-29 ITY1709 FCO → CTA May 29, 06:40 UTCMay 29, 07:25 UTC45m
2026-05-28 ITY853 ACC → FCO May 28, 14:20 UTCMay 29, 03:45 UTC13h 25m

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

Mode-S 4CAE1C frequently asked

What is Mode-S code 4CAE1C?
4CAE1C is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HXF.
Where is Mode-S 4CAE1C registered?
Mode-S code 4CAE1C is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE1C broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE1C, octal 23127034, decimal 5,025,308.
What flights does 4CAE1C operate?
Mode-S 4CAE1C has broadcast 20 distinct callsigns, including ITY894, ITY895, ITY108, ITY107, ITY897.