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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 2h ago
Flights observed
411
Distinct callsigns
20
Country
IE
Last broadcast
2h 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 - 21 2026-07-21
ITY895 ITA Airways 20 2026-07-22
ITY897 - 17 2026-07-21
ITY896 - 16 2026-07-21
ITY108 - 16 2026-07-09
ITY107 - 16 2026-07-09
ITY855 - 14 2026-07-10
ITY854 ITA Airways 12 2026-07-10
ITY160 ITA Airways 11 2026-07-03
ITY853 - 10 2026-07-02
ITY165 - 10 2026-07-03
ITY718 ITA Airways 9 2026-07-20
ITY1710 - 9 2026-07-19
ITY1709 ITA Airways 9 2026-07-19
ITY721 - 8 2026-07-20
ITY722 - 7 2026-07-03
ITY717 - 7 2026-07-04
ITY203 - 7 2026-07-12
ITY202 - 7 2026-07-12
ITY061 - 7 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 ITY810 FCO → TLV Jul 22, 21:25 UTCJul 22, 23:00 UTC1h 35m
2026-07-22 ITY407 FRA → FCO Jul 22, 16:55 UTCJul 22, 18:15 UTC1h 20m
2026-07-22 ITY404 FCO → FRA Jul 22, 14:10 UTCJul 22, 15:40 UTC1h 30m
2026-07-22 ITY719 ATH → FCO Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-22 ITY895 CAI → FCO Jul 22, 02:00 UTCJul 22, 04:50 UTC2h 50m
2026-07-21 ITY894 - Jul 21, 20:50 UTCJul 21, 23:25 UTC2h 35m
2026-07-21 ITY897 - Jul 21, 16:05 UTCJul 21, 18:05 UTC2h 0m
2026-07-21 ITY896 - Jul 21, 11:10 UTCJul 21, 13:35 UTC2h 25m
2026-07-20 ITY721 - Jul 20, 18:00 UTCJul 20, 19:40 UTC1h 40m
2026-07-20 ITY718 FCO → ATH Jul 20, 15:15 UTCJul 20, 16:40 UTC1h 25m
2026-07-20 ITY715 - Jul 20, 11:45 UTCJul 20, 13:25 UTC1h 40m
2026-07-20 ITY716 - Jul 20, 08:45 UTCJul 20, 10:15 UTC1h 30m
2026-07-20 ITY809 - Jul 20, 03:30 UTCJul 20, 06:35 UTC3h 5m
2026-07-19 ITY810 FCO → TLV Jul 19, 22:50 UTCJul 20, 01:35 UTC2h 45m
2026-07-19 ITY897 - Jul 19, 16:25 UTCJul 19, 19:10 UTC2h 45m
2026-07-19 ITY896 - Jul 19, 12:05 UTCJul 19, 13:50 UTC1h 45m
2026-07-19 ITY1710 - Jul 19, 09:25 UTCJul 19, 10:15 UTC50m
2026-07-19 ITY1709 FCO → CTA Jul 19, 07:25 UTCJul 19, 08:10 UTC45m
2026-07-19 ITY809 - Jul 19, 02:20 UTCJul 19, 05:25 UTC3h 5m
2026-07-18 ITY810 FCO → TLV Jul 18, 21:50 UTCJul 19, 00:35 UTC2h 45m
2026-07-18 ITY207 LHR → FCO Jul 18, 16:40 UTCJul 18, 18:25 UTC1h 45m
2026-07-18 ITY204 - Jul 18, 12:10 UTCJul 18, 14:15 UTC2h 5m
2026-07-18 ITY571 - Jul 18, 09:05 UTCJul 18, 10:05 UTC1h 0m
2026-07-18 ITY572 - Jul 18, 06:45 UTCJul 18, 07:50 UTC1h 5m
2026-07-18 ITY895 - Jul 18, 02:00 UTCJul 18, 04:45 UTC2h 46m
2026-07-17 ITY894 - Jul 17, 20:44 UTCJul 17, 23:10 UTC2h 25m
2026-07-17 ITY095 - Jul 17, 15:55 UTCJul 17, 17:20 UTC1h 25m
2026-07-17 ITY094 FCO → VLC Jul 17, 13:05 UTCJul 17, 14:44 UTC1h 40m
2026-07-17 ITY1412 - Jul 17, 09:50 UTCJul 17, 10:40 UTC50m
2026-07-17 ITY1421 - Jul 17, 07:55 UTCJul 17, 08:45 UTC50m
2026-07-17 ITY1774 - Jul 17, 05:35 UTCJul 17, 06:20 UTC45m
2026-07-16 ITY1789 FCO → PMO Jul 16, 20:29 UTCJul 16, 21:10 UTC40m
2026-07-16 ITY207 - Jul 16, 16:35 UTCJul 16, 18:34 UTC2h 0m
2026-07-16 ITY204 - Jul 16, 12:34 UTCJul 16, 14:50 UTC2h 15m
2026-07-16 ITY1782 - Jul 16, 08:40 UTCJul 16, 09:30 UTC50m
2026-07-16 ITY1777 - Jul 16, 06:40 UTCJul 16, 07:25 UTC45m
2026-07-16 ITY895 - Jul 16, 01:45 UTCJul 16, 04:40 UTC2h 55m
2026-07-15 ITY894 - Jul 15, 21:05 UTCJul 15, 23:45 UTC2h 40m
2026-07-15 ITY897 - Jul 15, 15:25 UTCJul 15, 18:25 UTC3h 0m
2026-07-15 ITY896 - Jul 15, 11:20 UTCJul 15, 13:35 UTC2h 15m
2026-07-15 ITY1782 - Jul 15, 08:25 UTCJul 15, 09:10 UTC45m
2026-07-15 ITY1777 - Jul 15, 06:35 UTCJul 15, 07:05 UTC30m
2026-07-14 ITY897 - Jul 14, 16:15 UTCJul 14, 19:10 UTC2h 55m
2026-07-14 ITY896 - Jul 14, 12:15 UTCJul 14, 14:40 UTC2h 25m
2026-07-14 ITY895 - Jul 14, 02:10 UTCJul 14, 05:05 UTC2h 55m
2026-07-13 ITY894 - Jul 13, 20:55 UTCJul 13, 23:35 UTC2h 40m
2026-07-13 ITY721 ATH → FCO Jul 13, 16:45 UTCJul 13, 18:30 UTC1h 45m
2026-07-13 ITY718 FCO → ATH Jul 13, 14:05 UTCJul 13, 15:30 UTC1h 25m
2026-07-13 ITY061 - Jul 13, 10:00 UTCJul 13, 11:50 UTC1h 50m
2026-07-13 ITY058 - Jul 13, 06:40 UTCJul 13, 08:35 UTC1h 55m

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 2h 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, ITY897, ITY896, ITY108.