sensors Mode-S transponder

4CADDD

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CADDD
Octal
23126735
Decimal
5,025,245
Country
IE
Tail
EI-HOD
Type
A20N
No current signal · last broadcast 4d ago
Flights observed
442
Distinct callsigns
20
Country
IE
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 4CADDD.

Country allocation

The ICAO 24-bit address 4CADDD 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
ITY203 - 11 2026-07-08
ITY202 - 11 2026-07-08
ITY207 - 10 2026-07-07
ITY204 - 10 2026-07-07
ITY074 - 7 2026-06-27
ITY1154 - 6 2026-06-20
ITY077 - 6 2026-06-27
ITY721 ITA Airways 5 2026-06-18
ITY718 ITA Airways 5 2026-06-18
ITY332 ITA Airways 5 2026-06-01
ITY1161 ITA Airways 5 2026-06-19
ITY897 ITA Airways 4 2026-05-27
ITY720 - 4 2026-06-25
ITY719 - 4 2026-06-25
ITY576 - 4 2026-06-28
ITY575 - 4 2026-06-28
ITY510 - 4 2026-07-05
ITY507 - 4 2026-07-06
ITY348 - 4 2026-07-07
ITY343 - 4 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 ITY1BC BDS → FCO Jul 9, 17:40 UTCJul 9, 18:35 UTC55m
2026-07-09 ITY1623 FCO → BDS Jul 9, 16:00 UTCJul 9, 16:50 UTC50m
2026-07-09 ITY059 - Jul 9, 04:05 UTCJul 9, 06:05 UTC2h 0m
2026-07-08 ITY064 - Jul 8, 20:30 UTCJul 8, 22:20 UTC1h 50m
2026-07-08 ITY407 FRA → FCO Jul 8, 16:50 UTCJul 8, 18:05 UTC1h 15m
2026-07-08 ITY404 - Jul 8, 13:55 UTCJul 8, 15:25 UTC1h 30m
2026-07-08 ITY203 - Jul 8, 10:00 UTCJul 8, 11:55 UTC1h 55m
2026-07-08 ITY202 - Jul 8, 06:15 UTCJul 8, 08:40 UTC2h 25m
2026-07-07 ITY207 - Jul 7, 16:05 UTCJul 7, 17:55 UTC1h 50m
2026-07-07 ITY204 - Jul 7, 12:20 UTCJul 7, 14:30 UTC2h 10m
2026-07-07 ITY343 - Jul 7, 10:10 UTCJul 7, 11:00 UTC50m
2026-07-07 ITY348 - Jul 7, 07:45 UTCJul 7, 08:30 UTC45m
2026-07-07 ITY059 - Jul 7, 04:30 UTCJul 7, 06:25 UTC1h 55m
2026-07-06 ITY064 - Jul 6, 19:50 UTCJul 6, 21:50 UTC2h 0m
2026-07-06 ITY207 - Jul 6, 16:10 UTCJul 6, 18:05 UTC1h 55m
2026-07-06 ITY204 - Jul 6, 12:15 UTCJul 6, 14:35 UTC2h 20m
2026-07-06 ITY887 - Jul 6, 09:00 UTCJul 6, 10:15 UTC1h 15m
2026-07-06 ITY886 - Jul 6, 07:05 UTCJul 6, 08:00 UTC55m
2026-07-06 ITY507 - Jul 6, 04:05 UTCJul 6, 04:50 UTC45m
2026-07-05 ITY510 - Jul 5, 21:40 UTCJul 5, 22:25 UTC45m
2026-07-05 ITY063 MAD → FCO Jul 5, 17:00 UTCJul 5, 18:50 UTC1h 50m
2026-07-05 ITY060 FCO → MAD Jul 5, 13:05 UTCJul 5, 14:55 UTC1h 50m
2026-07-05 ITY585 - Jul 5, 10:10 UTCJul 5, 11:15 UTC1h 5m
2026-07-05 ITY582 - Jul 5, 08:00 UTCJul 5, 08:50 UTC50m
2026-07-05 ITY075 - Jul 5, 04:25 UTCJul 5, 05:45 UTC1h 20m
2026-07-04 ITY078 - Jul 4, 20:50 UTCJul 4, 22:10 UTC1h 20m
2026-07-04 ITY737 - Jul 4, 17:30 UTCJul 4, 19:20 UTC1h 50m
2026-07-04 ITY736 - Jul 4, 14:45 UTCJul 4, 16:20 UTC1h 35m
2026-07-04 ITY061 - Jul 4, 10:10 UTCJul 4, 12:05 UTC1h 55m
2026-07-04 ITY058 - Jul 4, 06:35 UTCJul 4, 08:30 UTC1h 55m
2026-07-03 ITY1BC BDS → FCO Jul 3, 18:05 UTCJul 3, 18:55 UTC50m
2026-07-03 ITY1623 FCO → BDS Jul 3, 16:30 UTCJul 3, 17:15 UTC45m
2026-07-03 ITY1622 BDS → FCO Jul 3, 14:20 UTCJul 3, 15:00 UTC40m
2026-07-03 ITY1619 - Jul 3, 12:25 UTCJul 3, 13:10 UTC45m
2026-07-03 ITY059 - Jul 3, 04:25 UTCJul 3, 06:25 UTC2h 0m
2026-07-02 ITY064 - Jul 2, 20:25 UTCJul 2, 22:15 UTC1h 50m
2026-07-02 ITY573 - Jul 2, 18:10 UTCJul 2, 19:10 UTC1h 0m
2026-07-02 ITY574 - Jul 2, 16:00 UTCJul 2, 17:05 UTC1h 5m
2026-06-30 ITY333 CDG → FCO Jun 30, 12:35 UTCJun 30, 14:05 UTC1h 30m
2026-06-30 ITY318 - Jun 30, 09:35 UTCJun 30, 11:10 UTC1h 35m
2026-06-29 ITY207 - Jun 29, 16:10 UTCJun 29, 18:05 UTC1h 55m
2026-06-29 ITY204 FCO → LHR Jun 29, 12:09 UTCJun 29, 14:14 UTC2h 5m
2026-06-29 ITY437 - Jun 29, 09:25 UTCJun 29, 10:29 UTC1h 5m
2026-06-29 ITY432 - Jun 29, 07:05 UTCJun 29, 08:19 UTC1h 15m
2026-06-28 ITY1608 BRI → FCO Jun 28, 14:39 UTCJun 28, 15:24 UTC45m
2026-06-28 ITY1609 FCO → BRI Jun 28, 12:39 UTCJun 28, 13:25 UTC45m
2026-06-28 ITY575 - Jun 28, 10:15 UTCJun 28, 11:14 UTC1h 0m
2026-06-28 ITY576 - Jun 28, 07:25 UTCJun 28, 08:25 UTC1h 0m
2026-06-27 ITY577 GVA → FCO Jun 27, 17:14 UTCJun 27, 18:24 UTC1h 10m
2026-06-27 ITY578 FCO → GVA Jun 27, 15:00 UTCJun 27, 16:04 UTC1h 5m

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

Mode-S 4CADDD frequently asked

What is Mode-S code 4CADDD?
4CADDD is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HOD.
Where is Mode-S 4CADDD registered?
Mode-S code 4CADDD is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADDD broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADDD, octal 23126735, decimal 5,025,245.
What flights does 4CADDD operate?
Mode-S 4CADDD has broadcast 20 distinct callsigns, including ITY203, ITY202, ITY207, ITY204, ITY074.