Apparatus

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sensors Mode-S transponder

4CAD44

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IFA · AIRBUS A-350-900

Hex
4CAD44
Octal
23126504
Decimal
5,025,092
Country
IE
Tail
EI-IFA
Type
A359
No current signal · last broadcast 2h ago
Flights observed
103
Distinct callsigns
18
Country
IE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4CAD44.

Country allocation

The ICAO 24-bit address 4CAD44 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 18 distinct

Callsign Airline Flights Last seen
ITY793 - 19 2026-07-14
ITY792 - 17 2026-07-13
ITY621 - 15 2026-07-12
ITY620 - 15 2026-07-12
ITY681 - 13 2026-07-03
ITY680 - 9 2026-07-02
ITY6MO - 2 2026-07-06
ITY630 ITA Airways 2 2026-07-05
RYR81CB Ryanair 1 2026-06-19
RYR562G Ryanair 1 2026-06-16
ITY683 ITA Airways 1 2026-05-09
ITY682 ITA Airways 1 2026-05-08
ITY679 ITA Airways 1 2026-04-19
ITY678 ITA Airways 1 2026-04-19
ITY609 - 1 2026-06-20
ITY608 - 1 2026-06-20
ITY603 - 1 2026-07-04
ITY602 - 1 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ITY793 - Jul 14, 03:50 UTCJul 14, 06:35 UTC2h 45m
2026-07-13 ITY792 - Jul 13, 13:15 UTCJul 14, 01:00 UTC11h 45m
2026-07-12 ITY621 - Jul 12, 22:35 UTCJul 13, 09:50 UTC11h 15m
2026-07-12 ITY620 - Jul 12, 08:15 UTCJul 12, 20:25 UTC12h 10m
2026-07-09 ITY793 HND → FCO Jul 9, 05:20 UTCJul 9, 18:50 UTC13h 30m
2026-07-08 ITY792 - Jul 8, 15:20 UTCJul 9, 02:55 UTC11h 35m
2026-07-07 ITY621 - Jul 7, 22:35 UTCJul 8, 09:40 UTC11h 5m
2026-07-07 ITY620 - Jul 7, 08:10 UTCJul 7, 20:20 UTC12h 10m
2026-07-06 ITY6MO - Jul 6, 00:25 UTCJul 6, 09:30 UTC9h 5m
2026-07-05 ITY630 FCO → MIA Jul 5, 09:30 UTCJul 5, 19:20 UTC9h 50m
2026-07-04 ITY603 JFK → FCO Jul 4, 23:15 UTCJul 5, 06:30 UTC7h 15m
2026-07-04 ITY602 - Jul 4, 08:50 UTCJul 4, 17:40 UTC8h 50m
2026-07-03 ITY681 - Jul 3, 20:05 UTCJul 4, 03:55 UTC7h 50m
2026-07-03 ITY681 - Jul 3, 15:50 UTCJul 3, 18:45 UTC2h 55m
2026-07-02 ITY680 - Jul 2, 22:00 UTCJul 3, 11:15 UTC13h 15m
2026-07-02 ITY793 - Jul 2, 13:45 UTCJul 2, 17:55 UTC4h 10m
2026-07-02 ITY793 - Jul 2, 04:05 UTCJul 2, 06:00 UTC1h 55m
2026-07-01 ITY792 - Jul 1, 13:40 UTCJul 2, 01:20 UTC11h 40m
2026-06-30 ITY621 - Jun 30, 23:30 UTCJul 1, 10:15 UTC10h 45m
2026-06-30 ITY620 - Jun 30, 09:15 UTCJun 30, 21:10 UTC11h 55m
2026-06-29 ITY681 - Jun 29, 16:04 UTCJun 30, 04:20 UTC12h 16m
2026-06-28 ITY680 - Jun 28, 20:54 UTCJun 29, 10:10 UTC13h 15m
2026-06-28 ITY793 HND → FCO Jun 28, 03:59 UTCJun 28, 18:10 UTC14h 10m
2026-06-27 ITY792 - Jun 27, 13:49 UTCJun 28, 01:29 UTC11h 40m
2026-06-26 ITY621 LAX → FCO Jun 26, 22:40 UTCJun 27, 09:55 UTC11h 15m
2026-06-26 ITY620 - Jun 26, 08:05 UTCJun 26, 20:15 UTC12h 10m
2026-06-25 ITY681 - Jun 25, 15:54 UTCJun 26, 04:34 UTC12h 40m
2026-06-24 ITY680 - Jun 24, 21:04 UTCJun 25, 10:09 UTC13h 5m
2026-06-24 ITY793 - Jun 24, 03:55 UTCJun 24, 18:29 UTC14h 35m
2026-06-23 ITY792 - Jun 23, 13:19 UTCJun 24, 00:40 UTC11h 20m
2026-06-21 ITY621 - Jun 21, 23:05 UTCJun 22, 10:25 UTC11h 20m
2026-06-21 ITY620 - Jun 21, 08:40 UTCJun 21, 20:45 UTC12h 5m
2026-06-20 ITY609 JFK → FCO Jun 20, 21:00 UTCJun 21, 04:20 UTC7h 20m
2026-06-20 ITY608 RZE → JFK Jun 20, 08:55 UTCJun 20, 17:59 UTC9h 5m
2026-06-19 RYR81CB BGY → BRS Jun 19, 17:59 UTCJun 20, 06:10 UTC12h 10m
2026-06-16 RYR562G LPL → TFS Jun 16, 21:55 UTCJun 16, 22:05 UTC10m
2026-06-15 - - Jun 15, 12:00 UTCJun 15, 15:45 UTC3h 45m
2026-05-23 ITY621 LAX → FCO May 23, 22:25 UTCMay 24, 09:45 UTC11h 20m
2026-05-23 ITY620 FCO → LAX May 23, 08:05 UTCMay 23, 20:05 UTC12h 0m
2026-05-22 ITY681 EZE → FCO May 22, 15:50 UTCMay 23, 04:05 UTC12h 15m
2026-05-21 ITY680 FCO → EZE May 21, 21:20 UTCMay 22, 10:45 UTC13h 25m
2026-05-20 ITY793 HND → FCO May 20, 03:50 UTCMay 20, 17:45 UTC13h 56m
2026-05-19 ITY792 FCO → HND May 19, 13:20 UTCMay 20, 01:20 UTC12h 0m
2026-05-18 ITY793 HND → FCO May 18, 03:50 UTCMay 18, 17:35 UTC13h 45m
2026-05-17 ITY792 FCO → HND May 17, 13:15 UTCMay 18, 01:00 UTC11h 45m
2026-05-16 ITY621 LAX → FCO May 16, 22:30 UTCMay 17, 09:20 UTC10h 50m
2026-05-16 ITY620 FCO → LAX May 16, 07:55 UTCMay 16, 20:05 UTC12h 10m
2026-05-14 ITY621 LAX → FCO May 14, 22:30 UTCMay 15, 09:45 UTC11h 15m
2026-05-14 ITY620 FCO → LAX May 14, 08:00 UTCMay 14, 20:05 UTC12h 5m
2026-05-13 ITY681 EZE → FCO May 13, 16:00 UTCMay 14, 03:40 UTC11h 40m

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

Mode-S 4CAD44 frequently asked

What is Mode-S code 4CAD44?
4CAD44 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IFA.
Where is Mode-S 4CAD44 registered?
Mode-S code 4CAD44 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD44 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD44, octal 23126504, decimal 5,025,092.
What flights does 4CAD44 operate?
Mode-S 4CAD44 has broadcast 18 distinct callsigns, including ITY793, ITY792, ITY621, ITY620, ITY681.