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sensors Mode-S transponder

4CADCB

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CADCB
Octal
23126713
Decimal
5,025,227
Country
IE
Tail
EI-HOA
Type
A20N
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
500
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S 4CADCB.

Country allocation

The ICAO 24-bit address 4CADCB 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
ITY1161 ITA Airways 9 2026-07-26
ITY1154 ITA Airways 8 2026-07-25
ITY716 - 7 2026-07-16
ITY207 - 7 2026-07-23
ITY715 - 6 2026-07-16
ITY204 - 6 2026-07-23
ITY1747 - 6 2026-07-09
ITY1746 - 6 2026-07-09
ITY1622 ITA Airways 6 2026-07-17
ITY1619 - 6 2026-07-17
ITY1569 - 6 2026-06-25
ITY1566 - 6 2026-06-24
ITY432 - 5 2026-07-04
ITY404 - 5 2026-07-07
ITY2133 - 5 2026-07-09
ITY1794 - 5 2026-07-17
ITY1774 ITA Airways 5 2026-07-23
ITY1702 - 5 2026-07-18
ITY1701 - 5 2026-07-18
ITY721 - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY1161 FCO → REG Jul 26, 20:10 UTCJul 26, 20:55 UTC45m
2026-07-26 ITY063 MAD → FCO Jul 26, 16:55 UTCJul 26, 18:45 UTC1h 50m
2026-07-26 ITY060 FCO → MAD Jul 26, 13:30 UTCJul 26, 15:35 UTC2h 5m
2026-07-26 ITY9921 MXP → FCO Jul 26, 11:00 UTCJul 26, 11:45 UTC45m
2026-07-26 ITY8950 FCO → MXP Jul 26, 08:35 UTCJul 26, 09:30 UTC55m
2026-07-26 ITY059 MAD → FCO Jul 26, 04:05 UTCJul 26, 05:55 UTC1h 50m
2026-07-25 ITY064 FCO → MAD Jul 25, 21:20 UTCJul 25, 23:30 UTC2h 10m
2026-07-25 ITY1754 CTA → FCO Jul 25, 16:20 UTCJul 25, 17:25 UTC1h 5m
2026-07-25 ITY7CA FCO → CTA Jul 25, 14:25 UTCJul 25, 15:10 UTC45m
2026-07-25 ITY107 AMS → FCO Jul 25, 10:20 UTCJul 25, 12:15 UTC1h 55m
2026-07-25 ITY108 FCO → AMS Jul 25, 07:00 UTCJul 25, 08:55 UTC1h 55m
2026-07-25 ITY1154 REG → FCO Jul 25, 04:30 UTCJul 25, 05:30 UTC1h 0m
2026-07-24 ITY1161 FCO → REG Jul 24, 21:20 UTCJul 24, 22:00 UTC40m
2026-07-24 ITY109 AMS → FCO Jul 24, 17:40 UTCJul 24, 19:25 UTC1h 45m
2026-07-24 ITY110 FCO → AMS Jul 24, 13:50 UTCJul 24, 15:45 UTC1h 55m
2026-07-24 ITY585 - Jul 24, 10:25 UTCJul 24, 11:25 UTC1h 0m
2026-07-24 ITY582 FCO → TIA Jul 24, 08:20 UTCJul 24, 09:05 UTC45m
2026-07-24 ITY6BO BRI → FCO Jul 24, 04:35 UTCJul 24, 05:15 UTC40m
2026-07-23 ITY1603 - Jul 23, 21:45 UTCJul 23, 22:35 UTC50m
2026-07-23 ITY207 - Jul 23, 17:40 UTCJul 23, 19:25 UTC1h 45m
2026-07-23 ITY204 - Jul 23, 13:45 UTCJul 23, 15:55 UTC2h 10m
2026-07-23 ITY1624 - Jul 23, 09:40 UTCJul 23, 10:40 UTC1h 0m
2026-07-23 ITY1621 FCO → BDS Jul 23, 07:40 UTCJul 23, 08:20 UTC40m
2026-07-23 ITY1774 PMO → FCO Jul 23, 05:30 UTCJul 23, 06:15 UTC45m
2026-07-22 ITY1783 FCO → PMO Jul 22, 20:30 UTCJul 22, 21:10 UTC40m
2026-07-22 ITY207 - Jul 22, 16:50 UTCJul 22, 18:50 UTC2h 0m
2026-07-22 ITY204 - Jul 22, 12:25 UTCJul 22, 14:50 UTC2h 25m
2026-07-22 ITY1620 BDS → FCO Jul 22, 04:20 UTCJul 22, 05:15 UTC55m
2026-07-21 ITY1625 - Jul 21, 21:15 UTCJul 21, 21:55 UTC40m
2026-07-21 ITY1170 - Jul 21, 18:35 UTCJul 21, 19:25 UTC50m
2026-07-21 ITY7CI - Jul 21, 16:55 UTCJul 21, 17:35 UTC40m
2026-07-21 ITY1178 SUF → FCO Jul 21, 14:20 UTCJul 21, 15:15 UTC55m
2026-07-21 ITY1171 FCO → SUF Jul 21, 12:15 UTCJul 21, 13:05 UTC50m
2026-07-21 ITY1800 - Jul 21, 09:30 UTCJul 21, 10:10 UTC40m
2026-07-21 ITY1801 - Jul 21, 07:30 UTCJul 21, 07:55 UTC25m
2026-07-21 ITY1154 REG → FCO Jul 21, 04:25 UTCJul 21, 05:25 UTC1h 0m
2026-07-20 ITY1161 FCO → REG Jul 20, 20:35 UTCJul 20, 21:20 UTC45m
2026-07-20 ITY1480 - Jul 20, 18:20 UTCJul 20, 18:55 UTC35m
2026-07-20 ITY1467 - Jul 20, 16:30 UTCJul 20, 17:15 UTC45m
2026-07-20 ITY733 - Jul 20, 12:40 UTCJul 20, 14:35 UTC1h 55m
2026-07-20 ITY732 - Jul 20, 09:30 UTCJul 20, 11:05 UTC1h 35m
2026-07-20 ITY1728 - Jul 20, 06:20 UTCJul 20, 07:10 UTC50m
2026-07-19 ITY4LI LIN → CTA Jul 19, 19:55 UTCJul 19, 21:20 UTC1h 25m
2026-07-19 ITY1198 REG → LIN Jul 19, 17:10 UTCJul 19, 18:35 UTC1h 25m
2026-07-19 ITY1197 LIN → REG Jul 19, 15:00 UTCJul 19, 16:20 UTC1h 20m
2026-07-19 ITY401 - Jul 19, 12:05 UTCJul 19, 13:35 UTC1h 30m
2026-07-19 ITY402 LIN → RLG Jul 19, 09:15 UTCJul 19, 10:40 UTC1h 25m
2026-07-19 ITY1196 REG → LIN Jul 19, 06:45 UTCJul 19, 08:15 UTC1h 30m
2026-07-19 ITY1195 LIN → REG Jul 19, 04:20 UTCJul 19, 05:40 UTC1h 20m
2026-07-18 ITY1702 - Jul 18, 19:35 UTCJul 18, 21:05 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-HOA page for operator, model, and routing details .

Mode-S 4CADCB frequently asked

What is Mode-S code 4CADCB?
4CADCB is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HOA.
Where is Mode-S 4CADCB registered?
Mode-S code 4CADCB is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADCB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADCB, octal 23126713, decimal 5,025,227.
What flights does 4CADCB operate?
Mode-S 4CADCB has broadcast 20 distinct callsigns, including ITY1161, ITY1154, ITY716, ITY207, ITY715.