sensors Mode-S transponder

4CADDE

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CADDE
Octal
23126736
Decimal
5,025,246
Country
IE
Tail
EI-HOE
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
15
Distinct callsigns
10
Country
IE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4CADDE.

Country allocation

The ICAO 24-bit address 4CADDE 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 10 distinct

Callsign Airline Flights Last seen
ITY1754 - 3 2026-04-13
ITY316 ITA Airways 2 2026-04-13
ITY202 ITA Airways 2 2026-04-14
ITY1780 - 2 2026-04-13
ITY7CA - 1 2026-04-13
ITY573 - 1 2026-04-12
ITY319 - 1 2026-04-13
ITY203 - 1 2026-04-14
ITY1767 - 1 2026-04-13
ITY1620 - 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 ITY203 - Apr 14, 10:00 UTCApr 14, 11:05 UTC1h 5m
2026-04-14 ITY202 FCO → LHR Apr 14, 07:10 UTCApr 14, 08:20 UTC1h 10m
2026-04-14 ITY202 FCO → LHR Apr 14, 06:10 UTCApr 14, 07:10 UTC1h 0m
2026-04-13 ITY1780 - Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 ITY1780 - Apr 13, 19:40 UTCApr 13, 20:10 UTC30m
2026-04-13 ITY1767 - Apr 13, 17:50 UTCApr 13, 18:30 UTC40m
2026-04-13 ITY1754 - Apr 13, 16:15 UTCApr 13, 16:35 UTC20m
2026-04-13 ITY1754 - Apr 13, 15:50 UTCApr 13, 16:35 UTC45m
2026-04-13 ITY1754 - Apr 13, 15:35 UTCApr 13, 16:15 UTC40m
2026-04-13 ITY7CA - Apr 13, 13:20 UTCApr 13, 14:15 UTC55m
2026-04-13 ITY319 - Apr 13, 09:50 UTCApr 13, 11:35 UTC1h 45m
2026-04-13 ITY316 FCO → CDG Apr 13, 07:55 UTCApr 13, 08:25 UTC30m
2026-04-13 ITY316 FCO → CDG Apr 13, 06:55 UTCApr 13, 08:15 UTC1h 20m
2026-04-13 ITY1620 - Apr 13, 04:35 UTCApr 13, 05:25 UTC50m
2026-04-12 ITY573 - Apr 12, 18:15 UTCApr 12, 19:25 UTC1h 10m

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

Mode-S 4CADDE frequently asked

What is Mode-S code 4CADDE?
4CADDE is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HOE.
Where is Mode-S 4CADDE registered?
Mode-S code 4CADDE is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADDE broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADDE, octal 23126736, decimal 5,025,246.
What flights does 4CADDE operate?
Mode-S 4CADDE has broadcast 10 distinct callsigns, including ITY1754, ITY316, ITY202, ITY1780, ITY7CA.