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sensors Mode-S transponder

4CAE19

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAE19
Octal
23127031
Decimal
5,025,305
Country
IE
Tail
EI-HXC
Type
A21N
Broadcasting now · callsign ITY717 · 36,000 ft
Flights observed
416
Distinct callsigns
20
Country
IE
Last broadcast
5h ago

Current position

4CAE19 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAE19 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
ITY855 - 23 2026-06-27
ITY895 - 20 2026-07-09
ITY894 - 20 2026-07-08
ITY897 - 14 2026-07-07
ITY896 - 14 2026-07-07
ITY854 ITA Airways 14 2026-06-26
ITY853 ITA Airways 12 2026-06-01
ITY319 - 12 2026-07-12
ITY316 - 11 2026-07-12
ITY109 - 10 2026-07-03
ITY108 - 10 2026-06-29
ITY061 - 10 2026-06-24
ITY165 - 9 2026-07-10
ITY110 ITA Airways 9 2026-07-03
ITY058 - 9 2026-06-24
ITY721 ITA Airways 8 2026-06-27
ITY718 ITA Airways 8 2026-06-27
ITY203 - 8 2026-07-10
ITY202 - 8 2026-07-10
ITY160 ITA Airways 8 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ITY722 - Jul 13, 20:20 UTCJul 13, 21:45 UTC1h 25m
2026-07-13 ITY807 - Jul 13, 12:15 UTCJul 13, 15:25 UTC3h 10m
2026-07-13 ITY806 - Jul 13, 07:30 UTCJul 13, 10:20 UTC2h 50m
2026-07-13 ITY809 - Jul 13, 02:30 UTCJul 13, 05:35 UTC3h 5m
2026-07-12 ITY810 FCO → TLV Jul 12, 21:50 UTCJul 13, 00:35 UTC2h 45m
2026-07-12 ITY063 MAD → FCO Jul 12, 17:45 UTCJul 12, 19:30 UTC1h 45m
2026-07-12 ITY060 FCO → MAD Jul 12, 13:35 UTCJul 12, 15:40 UTC2h 5m
2026-07-12 ITY319 - Jul 12, 10:10 UTCJul 12, 11:40 UTC1h 30m
2026-07-12 ITY316 - Jul 12, 06:50 UTCJul 12, 08:30 UTC1h 40m
2026-07-12 ITY809 - Jul 12, 02:10 UTCJul 12, 05:10 UTC3h 0m
2026-07-11 ITY810 - Jul 11, 21:35 UTCJul 12, 00:20 UTC2h 45m
2026-07-11 ITY807 - Jul 11, 11:50 UTCJul 11, 14:50 UTC3h 0m
2026-07-11 ITY806 - Jul 11, 07:35 UTCJul 11, 10:25 UTC2h 50m
2026-07-11 ITY809 - Jul 11, 02:30 UTCJul 11, 05:31 UTC3h 0m
2026-07-10 ITY810 - Jul 10, 21:10 UTCJul 10, 23:55 UTC2h 45m
2026-07-10 ITY165 - Jul 10, 17:35 UTCJul 10, 19:10 UTC1h 35m
2026-07-10 ITY160 FCO → BRU Jul 10, 14:30 UTCJul 10, 16:20 UTC1h 50m
2026-07-10 ITY203 - Jul 10, 10:40 UTCJul 10, 12:40 UTC2h 0m
2026-07-10 ITY202 - Jul 10, 06:15 UTCJul 10, 08:25 UTC2h 10m
2026-07-09 ITY807 TLV → FCO Jul 9, 15:30 UTCJul 9, 18:30 UTC3h 0m
2026-07-09 ITY806 - Jul 9, 10:40 UTCJul 9, 13:30 UTC2h 50m
2026-07-09 ITY895 - Jul 9, 02:35 UTCJul 9, 04:50 UTC2h 15m
2026-07-09 ITY895 - Jul 9, 02:00 UTCJul 9, 02:30 UTC30m
2026-07-08 ITY894 - Jul 8, 20:25 UTCJul 8, 23:05 UTC2h 40m
2026-07-08 ITY807 TLV → FCO Jul 8, 12:25 UTCJul 8, 15:30 UTC3h 5m
2026-07-08 ITY806 - Jul 8, 07:55 UTCJul 8, 10:50 UTC2h 55m
2026-07-08 ITY809 - Jul 8, 02:40 UTCJul 8, 05:45 UTC3h 5m
2026-07-07 ITY810 FCO → TLV Jul 7, 21:45 UTCJul 8, 00:25 UTC2h 40m
2026-07-07 ITY897 - Jul 7, 16:55 UTCJul 7, 18:55 UTC2h 0m
2026-07-07 ITY897 - Jul 7, 16:10 UTCJul 7, 16:35 UTC25m
2026-07-07 ITY896 - Jul 7, 11:55 UTCJul 7, 14:10 UTC2h 15m
2026-07-07 ITY895 - Jul 7, 02:10 UTCJul 7, 04:55 UTC2h 45m
2026-07-06 ITY894 - Jul 6, 22:40 UTCJul 6, 23:05 UTC25m
2026-07-06 ITY894 - Jul 6, 20:35 UTCJul 6, 22:35 UTC2h 0m
2026-07-06 ITY897 - Jul 6, 15:30 UTCJul 6, 18:25 UTC2h 55m
2026-07-06 ITY896 - Jul 6, 11:30 UTCJul 6, 14:00 UTC2h 30m
2026-07-06 ITY1770 - Jul 6, 06:10 UTCJul 6, 06:55 UTC45m
2026-07-05 ITY1789 - Jul 5, 20:25 UTCJul 5, 20:55 UTC30m
2026-07-05 ITY807 - Jul 5, 12:25 UTCJul 5, 15:30 UTC3h 5m
2026-07-05 ITY806 - Jul 5, 08:00 UTCJul 5, 11:05 UTC3h 5m
2026-07-05 ITY809 - Jul 5, 02:30 UTCJul 5, 05:40 UTC3h 10m
2026-07-04 ITY810 - Jul 4, 21:25 UTCJul 5, 00:05 UTC2h 40m
2026-07-04 ITY807 TLV → FCO Jul 4, 12:20 UTCJul 4, 15:30 UTC3h 10m
2026-07-04 ITY806 - Jul 4, 07:45 UTCJul 4, 10:45 UTC3h 0m
2026-07-04 ITY809 - Jul 4, 02:25 UTCJul 4, 05:30 UTC3h 5m
2026-07-03 ITY810 - Jul 3, 21:30 UTCJul 4, 00:10 UTC2h 40m
2026-07-03 ITY109 - Jul 3, 16:25 UTCJul 3, 18:10 UTC1h 45m
2026-07-03 ITY110 FCO → AMS Jul 3, 13:00 UTCJul 3, 15:10 UTC2h 10m
2026-07-03 ITY077 - Jul 3, 10:00 UTCJul 3, 11:20 UTC1h 20m
2026-07-03 ITY074 - Jul 3, 07:30 UTCJul 3, 08:50 UTC1h 20m

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

Mode-S 4CAE19 frequently asked

What is Mode-S code 4CAE19?
4CAE19 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HXC.
Where is Mode-S 4CAE19 registered?
Mode-S code 4CAE19 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE19 broadcasting right now?
Yes. Mode-S 4CAE19 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE19, octal 23127031, decimal 5,025,305.
What flights does 4CAE19 operate?
Mode-S 4CAE19 has broadcast 20 distinct callsigns, including ITY855, ITY895, ITY894, ITY897, ITY896.