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sensors Mode-S transponder

4CAD5F

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HHW · AIRBUS A220-300

Hex
4CAD5F
Octal
23126537
Decimal
5,025,119
Country
IE
Tail
EI-HHW
Type
BCS3
No current signal · last broadcast 1d ago
Flights observed
559
Distinct callsigns
20
Country
IE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4CAD5F.

Country allocation

The ICAO 24-bit address 4CAD5F 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
ITY1719 - 9 2026-07-07
ITY1620 - 8 2026-07-07
ITY1435 ITA Airways 8 2026-06-11
ITY348 - 7 2026-06-17
ITY1625 - 7 2026-07-06
ITY1430 ITA Airways 7 2026-06-11
ITY436 - 6 2026-07-10
ITY433 ITA Airways 6 2026-07-10
ITY343 - 6 2026-06-17
ITY1731 - 6 2026-07-01
ITY1730 ITA Airways 6 2026-06-28
ITY1722 - 6 2026-06-25
ITY1417 - 6 2026-07-05
ITY6BO - 5 2026-06-24
ITY572 - 5 2026-06-25
ITY571 - 5 2026-06-25
ITY355 ITA Airways 5 2026-06-26
ITY354 ITA Airways 5 2026-06-26
ITY2013 ITA Airways 5 2026-06-05
ITY1739 - 5 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ITY1PR - Jul 13, 04:55 UTCJul 13, 05:25 UTC30m
2026-07-12 ITY1267 - Jul 12, 20:25 UTCJul 12, 20:55 UTC30m
2026-07-12 ITY1170 - Jul 12, 17:35 UTCJul 12, 18:25 UTC50m
2026-07-12 ITY7CI - Jul 12, 15:45 UTCJul 12, 16:25 UTC40m
2026-07-12 ITY1736 - Jul 12, 05:25 UTCJul 12, 06:20 UTC55m
2026-07-11 ITY1735 - Jul 11, 21:40 UTCJul 11, 22:25 UTC45m
2026-07-11 ITY055 FCO → MAH Jul 11, 19:30 UTCJul 11, 20:35 UTC1h 5m
2026-07-11 ITY054 - Jul 11, 17:10 UTCJul 11, 18:20 UTC1h 10m
2026-07-11 ITY715 - Jul 11, 11:20 UTCJul 11, 12:55 UTC1h 35m
2026-07-11 ITY716 - Jul 11, 08:15 UTCJul 11, 09:50 UTC1h 35m
2026-07-10 ITY433 MUC → FCO Jul 10, 17:30 UTCJul 10, 18:35 UTC1h 5m
2026-07-10 ITY436 - Jul 10, 15:05 UTCJul 10, 16:10 UTC1h 5m
2026-07-10 ITY091 - Jul 10, 11:45 UTCJul 10, 13:45 UTC2h 0m
2026-07-10 ITY090 - Jul 10, 07:55 UTCJul 10, 10:10 UTC2h 15m
2026-07-10 ITY1356 - Jul 10, 04:40 UTCJul 10, 05:30 UTC50m
2026-07-09 ITY1363 - Jul 9, 20:15 UTCJul 9, 21:05 UTC50m
2026-07-09 ITY1606 - Jul 9, 17:55 UTCJul 9, 18:45 UTC50m
2026-07-09 ITY1607 - Jul 9, 16:25 UTCJul 9, 17:05 UTC40m
2026-07-09 ITY2071 LIN → FCO Jul 9, 13:15 UTCJul 9, 14:00 UTC45m
2026-07-09 ITY305 - Jul 9, 08:00 UTCJul 9, 09:05 UTC1h 5m
2026-07-09 ITY300 LIN → CDG Jul 9, 05:15 UTCJul 9, 06:25 UTC1h 10m
2026-07-08 ITY1720 - Jul 8, 17:35 UTCJul 8, 19:00 UTC1h 25m
2026-07-08 ITY1721 - Jul 8, 14:55 UTCJul 8, 16:15 UTC1h 20m
2026-07-08 ITY1764 - Jul 8, 12:20 UTCJul 8, 13:35 UTC1h 15m
2026-07-08 ITY1785 - Jul 8, 08:55 UTCJul 8, 09:35 UTC40m
2026-07-08 ITY1728 - Jul 8, 06:30 UTCJul 8, 07:25 UTC55m
2026-07-07 ITY1719 - Jul 7, 20:35 UTCJul 7, 21:20 UTC45m
2026-07-07 ITY345 - Jul 7, 14:15 UTCJul 7, 15:00 UTC45m
2026-07-07 ITY344 - Jul 7, 12:15 UTCJul 7, 13:05 UTC50m
2026-07-07 ITY437 - Jul 7, 09:15 UTCJul 7, 10:20 UTC1h 5m
2026-07-07 ITY432 - Jul 7, 06:35 UTCJul 7, 07:55 UTC1h 20m
2026-07-07 ITY1620 - Jul 7, 04:20 UTCJul 7, 05:10 UTC50m
2026-07-06 ITY1625 - Jul 6, 21:55 UTCJul 6, 22:45 UTC50m
2026-07-06 ITY1616 - Jul 6, 13:40 UTCJul 6, 14:40 UTC1h 0m
2026-07-06 ITY1613 - Jul 6, 12:00 UTCJul 6, 12:45 UTC45m
2026-07-06 ITY1356 TRS → FCO Jul 6, 04:35 UTCJul 6, 05:20 UTC45m
2026-07-05 ITY1363 - Jul 5, 20:30 UTCJul 5, 21:20 UTC50m
2026-07-05 ITY1428 - Jul 5, 14:20 UTCJul 5, 15:05 UTC45m
2026-07-05 ITY1417 - Jul 5, 12:30 UTCJul 5, 13:20 UTC50m
2026-07-05 ITY1314 - Jul 5, 10:20 UTCJul 5, 10:55 UTC35m
2026-07-05 ITY1311 - Jul 5, 08:35 UTCJul 5, 09:15 UTC40m
2026-07-04 ITY1780 - Jul 4, 19:25 UTCJul 4, 20:00 UTC35m
2026-07-04 ITY1767 - Jul 4, 17:35 UTCJul 4, 18:15 UTC40m
2026-07-04 ITY1754 - Jul 4, 15:10 UTCJul 4, 16:05 UTC55m
2026-07-04 ITY7CA - Jul 4, 12:45 UTCJul 4, 13:25 UTC40m
2026-07-02 ITY1782 - Jul 2, 09:05 UTCJul 2, 09:55 UTC50m
2026-07-02 ITY1777 - Jul 2, 07:05 UTCJul 2, 07:50 UTC45m
2026-07-01 ITY1628 - Jul 1, 19:25 UTCJul 1, 20:15 UTC50m
2026-07-01 ITY1627 - Jul 1, 17:45 UTCJul 1, 18:35 UTC50m
2026-07-01 ITY1754 CTA → FCO Jul 1, 15:45 UTCJul 1, 16:40 UTC55m

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

Mode-S 4CAD5F frequently asked

What is Mode-S code 4CAD5F?
4CAD5F is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HHW.
Where is Mode-S 4CAD5F registered?
Mode-S code 4CAD5F is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD5F broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD5F, octal 23126537, decimal 5,025,119.
What flights does 4CAD5F operate?
Mode-S 4CAD5F has broadcast 20 distinct callsigns, including ITY1719, ITY1620, ITY1435, ITY348, ITY1625.