Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CADD5

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-KBY · AIRBUS A-320

Hex
4CADD5
Octal
23126725
Decimal
5,025,237
Country
IE
Tail
EI-KBY
Type
A320
No current signal · last broadcast 2d ago
Flights observed
93
Distinct callsigns
20
Country
IE
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4CADD5.

Country allocation

The ICAO 24-bit address 4CADD5 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
AYN7875 - 6 2026-07-09
AYN7351 - 6 2026-07-04
AYN7994 - 5 2026-06-13
AYN7352 - 5 2026-07-04
AYN7152 - 5 2026-06-24
AYN7151 - 5 2026-06-24
AYN7993 - 4 2026-06-09
AYN7819 - 3 2026-07-10
AYN7791 - 3 2026-06-09
AYN7906 - 2 2026-06-01
AYN7905 - 2 2026-06-01
AYN7876 - 2 2026-07-09
AYN7820 - 2 2026-07-10
AYN7817 - 2 2026-06-12
AYN7792 - 2 2026-06-07
AYN7777 - 2 2026-06-12
AYN7372 - 2 2026-05-31
AYN7371 - 2 2026-05-31
AYN7342 - 2 2026-05-26
AYN7277 - 2 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 AYN7172 - Jul 16, 05:50 UTCJul 16, 06:10 UTC20m
2026-07-15 AYN7154 - Jul 15, 13:05 UTCJul 16, 04:40 UTC15h 35m
2026-07-15 AYN7153 - Jul 15, 11:55 UTCJul 15, 12:20 UTC25m
2026-07-10 AYN7820 - Jul 10, 10:35 UTCJul 10, 12:20 UTC1h 45m
2026-07-10 AYN7819 - Jul 10, 06:35 UTCJul 10, 09:15 UTC2h 40m
2026-07-09 AYN7819 - Jul 9, 09:20 UTCJul 10, 09:15 UTC23h 55m
2026-07-09 AYN7876 - Jul 9, 07:55 UTCJul 10, 07:15 UTC23h 20m
2026-07-09 AYN7875 - Jul 9, 06:20 UTCJul 9, 06:40 UTC20m
2026-07-08 AYN7875 - Jul 8, 11:20 UTCJul 9, 05:35 UTC18h 15m
2026-07-08 AYN7820 - Jul 8, 09:30 UTCJul 9, 05:35 UTC20h 5m
2026-07-08 AYN7819 - Jul 8, 05:35 UTCJul 8, 08:10 UTC2h 35m
2026-07-04 AYN7352 - Jul 4, 11:55 UTCJul 4, 12:20 UTC25m
2026-07-04 AYN7351 - Jul 4, 10:40 UTCJul 4, 11:05 UTC25m
2026-07-03 AYN7351 - Jul 3, 11:40 UTCJul 4, 11:05 UTC23h 25m
2026-07-03 AYN7351 - Jul 3, 10:30 UTCJul 3, 10:55 UTC25m
2026-06-24 AYN7152 - Jun 24, 08:55 UTCJun 24, 09:09 UTC15m
2026-06-24 AYN7151 - Jun 24, 07:44 UTCJun 24, 08:04 UTC20m
2026-06-22 RYR870T NOC → LTN Jun 22, 19:00 UTCJun 22, 19:19 UTC20m
2026-06-20 AYN7172 - Jun 20, 05:59 UTCJun 20, 06:24 UTC25m
2026-06-19 AYN7171 - Jun 19, 09:19 UTCJun 20, 04:39 UTC19h 20m
2026-06-19 AYN7152 - Jun 19, 09:09 UTCJun 20, 04:39 UTC19h 30m
2026-06-19 AYN7151 - Jun 19, 07:59 UTCJun 19, 08:24 UTC25m
2026-06-14 RYR92PF SDR → BLQ Jun 14, 07:50 UTCJun 14, 08:00 UTC10m
2026-06-13 AYN7994 - Jun 13, 15:30 UTCJun 13, 16:15 UTC45m
2026-06-13 AYN7875 - Jun 13, 04:50 UTCJun 13, 14:40 UTC9h 50m
2026-06-13 AYN7875 - Jun 13, 03:35 UTCJun 13, 04:15 UTC39m
2026-06-12 AYN7275 - Jun 12, 22:45 UTCJun 12, 23:15 UTC30m
2026-06-12 AYN7276 - Jun 12, 21:05 UTCJun 12, 21:30 UTC25m
2026-06-12 AYN7777 - Jun 12, 16:55 UTCJun 12, 20:05 UTC3h 10m
2026-06-12 AYN7266 - Jun 12, 14:50 UTCJun 12, 15:05 UTC15m
2026-06-12 AYN7818 - Jun 12, 09:10 UTCJun 12, 11:55 UTC2h 45m
2026-06-12 AYN7817 - Jun 12, 07:30 UTCJun 12, 07:45 UTC15m
2026-06-12 AYN7817 - Jun 12, 05:45 UTCJun 12, 06:55 UTC1h 10m
2026-06-12 AYN7265 - Jun 12, 01:25 UTCJun 12, 01:40 UTC15m
2026-06-11 AYN7277 - Jun 11, 18:30 UTCJun 11, 19:05 UTC35m
2026-06-11 AYN7876 - Jun 11, 08:10 UTCJun 11, 10:50 UTC2h 40m
2026-06-11 AYN7875 - Jun 11, 04:35 UTCJun 11, 06:35 UTC2h 0m
2026-06-11 AYN7875 - Jun 11, 03:25 UTCJun 11, 04:00 UTC35m
2026-06-11 AYN7278 - Jun 11, 01:30 UTCJun 11, 02:00 UTC30m
2026-06-10 AYN7579 - Jun 10, 21:15 UTCJun 10, 21:35 UTC20m
2026-06-10 AYN7580 - Jun 10, 16:25 UTCJun 10, 16:35 UTC10m
2026-06-10 AYN7265 - Jun 10, 12:00 UTCJun 10, 15:05 UTC3h 5m
2026-06-09 AYN7994 - Jun 9, 12:55 UTCJun 9, 14:30 UTC1h 35m
2026-06-09 AYN7993 - Jun 9, 10:00 UTCJun 9, 11:45 UTC1h 45m
2026-06-09 AYN7791 - Jun 9, 08:00 UTCJun 9, 08:15 UTC15m
2026-06-09 AYN7794 - Jun 9, 03:00 UTCJun 9, 03:25 UTC25m
2026-06-09 AYN7793 - Jun 9, 01:35 UTCJun 9, 02:05 UTC30m
2026-06-08 AYN7777 - Jun 8, 16:20 UTCJun 8, 19:45 UTC3h 25m
2026-06-08 AYN7277 - Jun 8, 14:40 UTCJun 8, 14:55 UTC15m
2026-06-08 AYN7606 - Jun 8, 10:45 UTCJun 8, 13:25 UTC2h 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-KBY page for operator, model, and routing details .

Mode-S 4CADD5 frequently asked

What is Mode-S code 4CADD5?
4CADD5 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KBY.
Where is Mode-S 4CADD5 registered?
Mode-S code 4CADD5 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADD5 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADD5, octal 23126725, decimal 5,025,237.
What flights does 4CADD5 operate?
Mode-S 4CADD5 has broadcast 20 distinct callsigns, including AYN7875, AYN7351, AYN7994, AYN7352, AYN7152.