Apparatus

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sensors Mode-S transponder

4CAE1E

ICAO 24-bit transponder address · allocated to Ireland

Hex
4CAE1E
Octal
23127036
Decimal
5,025,310
Country
IE
Broadcasting now · callsign ITY319 · 1,250 ft
Flights observed
363
Distinct callsigns
20
Country
IE
Last broadcast
18d ago

Current position

4CAE1E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAE1E 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
ITY332 - 15 2026-07-14
ITY317 - 15 2026-07-15
ITY077 ITA Airways 14 2026-07-25
ITY074 ITA Airways 14 2026-07-25
ITY325 - 12 2026-07-14
ITY324 - 12 2026-07-14
ITY721 - 11 2026-07-16
ITY718 ITA Airways 11 2026-07-16
ITY854 ITA Airways 10 2026-07-26
ITY855 - 9 2026-07-17
ITY716 - 9 2026-06-29
ITY715 - 9 2026-06-29
ITY319 - 9 2026-07-18
ITY316 ITA Airways 9 2026-07-18
ITY108 ITA Airways 9 2026-07-26
ITY107 ITA Airways 9 2026-07-26
ITY895 ITA Airways 8 2026-07-25
ITY894 - 7 2026-07-22
ITY110 ITA Airways 7 2026-06-23
ITY109 - 7 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY854 FCO → DSS Jul 26, 13:45 UTCJul 26, 19:15 UTC5h 30m
2026-07-26 ITY107 AMS → FCO Jul 26, 10:05 UTCJul 26, 11:45 UTC1h 40m
2026-07-26 ITY108 FCO → AMS Jul 26, 06:50 UTCJul 26, 08:55 UTC2h 5m
2026-07-25 ITY895 CAI → FCO Jul 25, 21:25 UTCJul 26, 04:55 UTC7h 30m
2026-07-25 ITY897 CAI → FCO Jul 25, 16:55 UTCJul 25, 19:50 UTC2h 55m
2026-07-25 ITY896 - Jul 25, 12:55 UTCJul 25, 15:15 UTC2h 20m
2026-07-25 ITY077 BCN → FCO Jul 25, 10:00 UTCJul 25, 11:05 UTC1h 5m
2026-07-25 ITY074 FCO → BCN Jul 25, 07:25 UTCJul 25, 08:55 UTC1h 30m
2026-07-25 ITY861 TUN → FCO Jul 25, 04:50 UTCJul 25, 05:40 UTC50m
2026-07-24 ITY862 FCO → TUN Jul 24, 21:10 UTCJul 24, 21:50 UTC40m
2026-07-24 ITY165 - Jul 24, 17:15 UTCJul 24, 18:50 UTC1h 35m
2026-07-24 ITY160 - Jul 24, 14:25 UTCJul 24, 16:10 UTC1h 45m
2026-07-24 ITY203 - Jul 24, 10:05 UTCJul 24, 12:00 UTC1h 55m
2026-07-24 ITY202 FCO → LHR Jul 24, 06:10 UTCJul 24, 08:25 UTC2h 15m
2026-07-23 ITY852 - Jul 23, 14:55 UTCJul 24, 03:50 UTC12h 55m
2026-07-23 ITY107 - Jul 23, 10:20 UTCJul 23, 11:55 UTC1h 35m
2026-07-23 ITY108 FCO → AMS Jul 23, 06:50 UTCJul 23, 08:50 UTC2h 0m
2026-07-23 ITY895 CAI → FCO Jul 23, 02:00 UTCJul 23, 05:00 UTC3h 0m
2026-07-22 ITY894 - Jul 22, 20:45 UTCJul 22, 23:30 UTC2h 45m
2026-07-22 ITY089 - Jul 22, 16:45 UTCJul 22, 17:55 UTC1h 10m
2026-07-22 ITY088 PMI → FCO Jul 22, 13:35 UTCJul 22, 14:55 UTC1h 20m
2026-07-22 ITY061 MAD → FCO Jul 22, 11:10 UTCJul 22, 12:05 UTC55m
2026-07-21 ITY852 - Jul 21, 14:15 UTCJul 22, 03:20 UTC13h 5m
2026-07-21 ITY1784 - Jul 21, 10:40 UTCJul 21, 11:30 UTC50m
2026-07-21 ITY1785 - Jul 21, 08:50 UTCJul 21, 09:25 UTC35m
2026-07-21 ITY1736 CTA → FCO Jul 21, 05:15 UTCJul 21, 06:10 UTC55m
2026-07-20 ITY1735 - Jul 20, 21:15 UTCJul 20, 21:55 UTC40m
2026-07-20 ITY807 - Jul 20, 12:00 UTCJul 20, 15:05 UTC3h 5m
2026-07-20 ITY806 FCO → TLV Jul 20, 07:35 UTCJul 20, 10:30 UTC2h 55m
2026-07-20 ITY895 CAI → FCO Jul 20, 02:00 UTCJul 20, 04:40 UTC2h 40m
2026-07-19 ITY894 - Jul 19, 20:50 UTCJul 19, 23:20 UTC2h 30m
2026-07-19 ITY807 - Jul 19, 13:25 UTCJul 19, 16:25 UTC3h 0m
2026-07-19 ITY806 FCO → TLV Jul 19, 08:35 UTCJul 19, 11:30 UTC2h 55m
2026-07-18 ITY852 - Jul 18, 14:30 UTCJul 19, 03:25 UTC12h 55m
2026-07-18 ITY319 - Jul 18, 10:10 UTCJul 18, 11:35 UTC1h 25m
2026-07-18 ITY316 FCO → CDG Jul 18, 07:05 UTCJul 18, 08:45 UTC1h 40m
2026-07-17 ITY855 - Jul 17, 23:50 UTCJul 18, 04:40 UTC4h 51m
2026-07-17 ITY854 FCO → DSS Jul 17, 15:20 UTCJul 17, 20:40 UTC5h 20m
2026-07-17 ITY077 - Jul 17, 11:15 UTCJul 17, 12:25 UTC1h 10m
2026-07-17 ITY074 - Jul 17, 08:20 UTCJul 17, 09:50 UTC1h 30m
2026-07-17 ITY895 - Jul 17, 01:49 UTCJul 17, 04:39 UTC2h 50m
2026-07-16 ITY894 - Jul 16, 20:45 UTCJul 16, 23:25 UTC2h 40m
2026-07-16 ITY721 ATH → FCO Jul 16, 16:55 UTCJul 16, 18:40 UTC1h 45m
2026-07-16 ITY718 FCO → ATH Jul 16, 14:05 UTCJul 16, 15:35 UTC1h 30m
2026-07-16 ITY107 - Jul 16, 10:25 UTCJul 16, 12:14 UTC1h 50m
2026-07-16 ITY108 - Jul 16, 07:15 UTCJul 16, 09:15 UTC2h 0m
2026-07-15 ITY855 - Jul 15, 23:40 UTCJul 16, 04:45 UTC5h 5m
2026-07-15 ITY854 FCO → DSS Jul 15, 13:40 UTCJul 15, 19:05 UTC5h 25m
2026-07-15 ITY077 - Jul 15, 09:55 UTCJul 15, 11:10 UTC1h 15m
2026-07-15 ITY074 - Jul 15, 07:15 UTCJul 15, 08:35 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.

Mode-S 4CAE1E frequently asked

What is Mode-S code 4CAE1E?
4CAE1E is an ICAO 24-bit transponder address. Allocated to Ireland.
Where is Mode-S 4CAE1E registered?
Mode-S code 4CAE1E is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE1E broadcasting right now?
Yes. Mode-S 4CAE1E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE1E, octal 23127036, decimal 5,025,310.
What flights does 4CAE1E operate?
Mode-S 4CAE1E has broadcast 20 distinct callsigns, including ITY332, ITY317, ITY077, ITY074, ITY325.