Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CAD5C

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HHT · AIRBUS A220-100

Hex
4CAD5C
Octal
23126534
Decimal
5,025,116
Country
IE
Tail
EI-HHT
Type
BCS1
Broadcasting now · callsign ITY094 · 26,225 ft
Flights observed
670
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:35 UTC

Current position

4CAD5C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAD5C 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
ITY1777 - 13 2026-07-21
ITY1782 ITA Airways 11 2026-07-21
ITY1739 - 11 2026-07-05
ITY1730 ITA Airways 10 2026-07-01
ITY1363 - 9 2026-07-02
ITY1356 - 9 2026-07-03
ITY2013 ITA Airways 8 2026-07-25
ITY577 - 7 2026-07-12
ITY574 - 7 2026-07-01
ITY573 - 7 2026-07-01
ITY572 - 7 2026-07-13
ITY571 - 7 2026-07-13
ITY436 ITA Airways 7 2026-07-26
ITY433 ITA Airways 7 2026-07-26
ITY1PR - 7 2026-07-16
ITY1365 - 7 2026-07-02
ITY1267 - 7 2026-07-15
ITY6BO - 6 2026-07-02
ITY578 - 6 2026-07-12
ITY345 - 6 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY1173 FCO → SUF Jul 26, 20:55 UTCJul 26, 21:35 UTC40m
2026-07-26 ITY433 MUC → FCO Jul 26, 18:00 UTCJul 26, 19:00 UTC1h 0m
2026-07-26 ITY436 FCO → MUC Jul 26, 15:25 UTCJul 26, 16:40 UTC1h 15m
2026-07-26 ITY1766 - Jul 26, 13:20 UTCJul 26, 14:10 UTC50m
2026-07-26 ITY1799 FCO → PMO Jul 26, 11:05 UTCJul 26, 11:50 UTC45m
2026-07-26 ITY1710 CTA → FCO Jul 26, 08:40 UTCJul 26, 09:45 UTC1h 5m
2026-07-26 ITY1709 FCO → CTA Jul 26, 06:30 UTCJul 26, 07:25 UTC56m
2026-07-26 ITY717 ATH → FCO Jul 26, 03:15 UTCJul 26, 05:05 UTC1h 50m
2026-07-25 ITY722 FCO → ATH Jul 25, 20:55 UTCJul 25, 22:20 UTC1h 25m
2026-07-25 ITY063 MAD → FCO Jul 25, 17:30 UTCJul 25, 19:10 UTC1h 40m
2026-07-25 ITY060 FCO → MAD Jul 25, 13:40 UTCJul 25, 15:50 UTC2h 10m
2026-07-25 ITY575 GVA → FCO Jul 25, 10:10 UTCJul 25, 11:10 UTC1h 0m
2026-07-25 ITY576 FCO → GVA Jul 25, 07:40 UTCJul 25, 08:55 UTC1h 15m
2026-07-25 ITY2013 LIN → FCO Jul 25, 05:15 UTCJul 25, 06:00 UTC45m
2026-07-24 ITY1702 CTA → LIN Jul 24, 19:40 UTCJul 24, 21:10 UTC1h 30m
2026-07-24 ITY1701 LIN → CTA Jul 24, 17:20 UTCJul 24, 18:35 UTC1h 15m
2026-07-24 ITY1672 - Jul 24, 14:45 UTCJul 24, 16:00 UTC1h 15m
2026-07-24 ITY1671 - Jul 24, 12:25 UTCJul 24, 13:25 UTC1h 0m
2026-07-24 ITY1772 - Jul 24, 09:30 UTCJul 24, 10:50 UTC1h 20m
2026-07-24 ITY1773 LIN → PMO Jul 24, 07:00 UTCJul 24, 08:10 UTC1h 10m
2026-07-24 ITY1768 PMO → LIN Jul 24, 04:30 UTCJul 24, 05:50 UTC1h 20m
2026-07-23 ITY1789 FCO → PMO Jul 23, 20:10 UTCJul 23, 20:45 UTC35m
2026-07-23 ITY433 MUC → FCO Jul 23, 17:30 UTCJul 23, 18:35 UTC1h 5m
2026-07-23 ITY436 FCO → MUC Jul 23, 15:05 UTCJul 23, 16:25 UTC1h 20m
2026-07-23 ITY081 - Jul 23, 11:40 UTCJul 23, 12:50 UTC1h 10m
2026-07-23 ITY080 - Jul 23, 09:05 UTCJul 23, 10:30 UTC1h 25m
2026-07-23 ITY2021 LIN → FCO Jul 23, 06:15 UTCJul 23, 06:55 UTC40m
2026-07-22 ITY1650 - Jul 22, 20:20 UTCJul 22, 21:35 UTC1h 15m
2026-07-22 ITY1639 - Jul 22, 18:15 UTCJul 22, 19:20 UTC1h 5m
2026-07-22 ITY1644 - Jul 22, 15:35 UTCJul 22, 17:00 UTC1h 25m
2026-07-22 ITY1641 LIN → BDS Jul 22, 13:10 UTCJul 22, 14:15 UTC1h 5m
2026-07-22 ITY148 LIN → BRU Jul 22, 05:20 UTCJul 22, 05:25 UTC5m
2026-07-21 ITY2130 FCO → LIN Jul 21, 21:00 UTCJul 21, 21:45 UTC45m
2026-07-21 ITY1392 GOA → FCO Jul 21, 18:00 UTCJul 21, 18:40 UTC40m
2026-07-21 ITY1391 FCO → GOA Jul 21, 16:20 UTCJul 21, 17:00 UTC40m
2026-07-21 ITY1622 BDS → FCO Jul 21, 13:45 UTCJul 21, 14:45 UTC1h 0m
2026-07-21 ITY1619 - Jul 21, 11:55 UTCJul 21, 12:40 UTC45m
2026-07-21 ITY1782 PMO → FCO Jul 21, 08:10 UTCJul 21, 08:50 UTC40m
2026-07-21 ITY1777 - Jul 21, 06:15 UTCJul 21, 06:50 UTC35m
2026-07-20 ITY1780 - Jul 20, 19:15 UTCJul 20, 20:00 UTC45m
2026-07-20 ITY1767 FCO → PMO Jul 20, 17:30 UTCJul 20, 18:10 UTC40m
2026-07-20 ITY1616 - Jul 20, 15:10 UTCJul 20, 16:00 UTC50m
2026-07-20 ITY1613 - Jul 20, 13:20 UTCJul 20, 14:00 UTC40m
2026-07-20 ITY1412 - Jul 20, 09:50 UTCJul 20, 10:40 UTC50m
2026-07-20 ITY1421 - Jul 20, 07:55 UTCJul 20, 08:45 UTC50m
2026-07-20 ITY1736 CTA → FCO Jul 20, 05:15 UTCJul 20, 06:20 UTC1h 5m
2026-07-19 ITY1729 - Jul 19, 18:20 UTCJul 19, 19:10 UTC50m
2026-07-19 ITY079 BCN → FCO Jul 19, 15:45 UTCJul 19, 16:55 UTC1h 10m
2026-07-19 ITY076 FCO → BCN Jul 19, 13:10 UTCJul 19, 14:30 UTC1h 20m
2026-07-19 ITY1784 - Jul 19, 10:50 UTCJul 19, 11:30 UTC40m

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

Mode-S 4CAD5C frequently asked

What is Mode-S code 4CAD5C?
4CAD5C is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HHT.
Where is Mode-S 4CAD5C registered?
Mode-S code 4CAD5C is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD5C broadcasting right now?
Yes. Mode-S 4CAD5C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD5C, octal 23126534, decimal 5,025,116.
What flights does 4CAD5C operate?
Mode-S 4CAD5C has broadcast 20 distinct callsigns, including ITY1777, ITY1782, ITY1739, ITY1730, ITY1363.