Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CADEC

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HOL · AIRBUS A-320neo

Hex
4CADEC
Octal
23126754
Decimal
5,025,260
Country
IE
Tail
EI-HOL
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
541
Distinct callsigns
20
Country
IE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4CADEC.

Country allocation

The ICAO 24-bit address 4CADEC 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
ITY1605 - 8 2026-07-06
ITY1600 - 8 2026-07-06
ITY207 - 7 2026-07-13
ITY204 - 7 2026-07-13
ITY317 ITA Airways 6 2026-05-16
ITY2114 ITA Airways 6 2026-06-17
ITY121 ITA Airways 6 2026-06-03
ITY120 ITA Airways 6 2026-06-03
ITY1177 - 6 2026-06-20
ITY427 - 5 2026-07-06
ITY426 - 5 2026-07-06
ITY332 ITA Airways 5 2026-05-15
ITY2097 ITA Airways 5 2026-06-17
ITY1569 - 5 2026-07-05
ITY1566 - 5 2026-07-04
ITY1176 - 5 2026-06-18
ITY1154 - 5 2026-07-14
ITY867 - 4 2026-07-08
ITY6BO - 4 2026-06-26
ITY574 ITA Airways 4 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ITY095 - Jul 14, 16:20 UTCJul 14, 17:45 UTC1h 25m
2026-07-14 ITY094 FCO → VLC Jul 14, 13:35 UTCJul 14, 15:15 UTC1h 40m
2026-07-14 ITY403 - Jul 14, 10:00 UTCJul 14, 11:20 UTC1h 20m
2026-07-14 ITY400 - Jul 14, 07:00 UTCJul 14, 08:35 UTC1h 35m
2026-07-14 ITY1154 REG → FCO Jul 14, 04:25 UTCJul 14, 05:20 UTC55m
2026-07-13 ITY1161 - Jul 13, 20:35 UTCJul 13, 21:25 UTC50m
2026-07-13 ITY207 - Jul 13, 16:45 UTCJul 13, 18:40 UTC1h 55m
2026-07-13 ITY204 FCO → LHR Jul 13, 12:20 UTCJul 13, 14:35 UTC2h 15m
2026-07-13 ITY437 - Jul 13, 09:20 UTCJul 13, 10:20 UTC1h 0m
2026-07-13 ITY432 - Jul 13, 06:50 UTCJul 13, 08:01 UTC1h 10m
2026-07-13 ITY1778 - Jul 13, 04:20 UTCJul 13, 05:10 UTC50m
2026-07-12 ITY1789 - Jul 12, 20:10 UTCJul 12, 20:45 UTC35m
2026-07-12 ITY1794 - Jul 12, 18:01 UTCJul 12, 18:50 UTC50m
2026-07-12 ITY1795 FCO → PMO Jul 12, 15:50 UTCJul 12, 16:20 UTC30m
2026-07-12 ITY1784 - Jul 12, 10:40 UTCJul 12, 11:25 UTC45m
2026-07-12 ITY1785 - Jul 12, 08:40 UTCJul 12, 09:20 UTC40m
2026-07-12 ITY2021 - Jul 12, 06:25 UTCJul 12, 07:10 UTC45m
2026-07-11 ITY1601 - Jul 11, 19:25 UTCJul 11, 20:25 UTC1h 0m
2026-07-11 ITY1604 LIN → AHO Jul 11, 17:20 UTCJul 11, 18:15 UTC55m
2026-07-11 ITY2092 FCO → LIN Jul 11, 15:20 UTCJul 11, 16:10 UTC50m
2026-07-11 ITY091 - Jul 11, 11:20 UTCJul 11, 13:15 UTC1h 55m
2026-07-11 ITY090 - Jul 11, 07:40 UTCJul 11, 10:00 UTC2h 20m
2026-07-11 ITY1154 - Jul 11, 04:25 UTCJul 11, 05:25 UTC1h 0m
2026-07-10 ITY1161 - Jul 10, 20:40 UTCJul 10, 21:25 UTC45m
2026-07-10 ITY207 - Jul 10, 16:45 UTCJul 10, 18:45 UTC2h 0m
2026-07-10 ITY204 - Jul 10, 12:30 UTCJul 10, 14:40 UTC2h 10m
2026-07-10 ITY1800 - Jul 10, 10:05 UTCJul 10, 11:00 UTC55m
2026-07-10 ITY1801 - Jul 10, 08:00 UTCJul 10, 08:40 UTC40m
2026-07-10 ITY1736 - Jul 10, 05:30 UTCJul 10, 06:25 UTC55m
2026-07-09 ITY1729 - Jul 9, 19:20 UTCJul 9, 20:05 UTC45m
2026-07-09 ITY095 - Jul 9, 16:00 UTCJul 9, 17:30 UTC1h 30m
2026-07-09 ITY094 FCO → VLC Jul 9, 13:25 UTCJul 9, 14:55 UTC1h 30m
2026-07-09 ITY077 - Jul 9, 10:15 UTCJul 9, 11:35 UTC1h 20m
2026-07-09 ITY074 - Jul 9, 07:45 UTCJul 9, 09:00 UTC1h 15m
2026-07-09 ITY803 - Jul 9, 03:35 UTCJul 9, 04:55 UTC1h 20m
2026-07-08 ITY802 - Jul 8, 20:45 UTCJul 8, 22:00 UTC1h 15m
2026-07-08 ITY867 - Jul 8, 17:25 UTCJul 8, 18:20 UTC55m
2026-07-08 ITY866 FCO → TUN Jul 8, 15:35 UTCJul 8, 16:30 UTC55m
2026-07-08 ITY061 - Jul 8, 10:00 UTCJul 8, 12:05 UTC2h 5m
2026-07-08 ITY058 - Jul 8, 06:25 UTCJul 8, 08:15 UTC1h 50m
2026-07-08 ITY803 - Jul 8, 03:30 UTCJul 8, 04:50 UTC1h 20m
2026-07-07 ITY802 - Jul 7, 21:40 UTCJul 7, 22:50 UTC1h 10m
2026-07-07 ITY8712 - Jul 7, 19:10 UTCJul 7, 20:05 UTC55m
2026-07-07 ITY8733 - Jul 7, 16:35 UTCJul 7, 17:25 UTC50m
2026-07-07 ITY1622 BDS → FCO Jul 7, 13:40 UTCJul 7, 14:30 UTC50m
2026-07-07 ITY1619 - Jul 7, 11:45 UTCJul 7, 12:40 UTC55m
2026-07-07 ITY2055 - Jul 7, 05:40 UTCJul 7, 06:30 UTC50m
2026-07-06 ITY353 ORY → LIN Jul 6, 18:40 UTCJul 6, 19:55 UTC1h 15m
2026-07-06 ITY3LO LIN → ORY Jul 6, 16:20 UTCJul 6, 17:25 UTC1h 5m
2026-07-06 ITY427 HAM → LIN Jul 6, 13:15 UTCJul 6, 14:45 UTC1h 30m

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

Mode-S 4CADEC frequently asked

What is Mode-S code 4CADEC?
4CADEC is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HOL.
Where is Mode-S 4CADEC registered?
Mode-S code 4CADEC is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADEC 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 4CADEC, octal 23126754, decimal 5,025,260.
What flights does 4CADEC operate?
Mode-S 4CADEC has broadcast 20 distinct callsigns, including ITY1605, ITY1600, ITY207, ITY204, ITY317.