Apparatus

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sensors Mode-S transponder

4CA364

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-KDF · AIRBUS A-321neo

Hex
4CA364
Octal
23121544
Decimal
5,022,564
Country
IE
Tail
EI-KDF
Type
A21N
No current signal · last broadcast 2h ago
Flights observed
59
Distinct callsigns
19
Country
IE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4CA364.

Country allocation

The ICAO 24-bit address 4CA364 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 19 distinct

Callsign Airline Flights Last seen
KZR215 Air Astana 12 2026-05-27
KZR216 Air Astana 7 2026-05-27
KZR266 Air Astana 5 2026-05-19
KZR918 Air Astana 4 2026-05-03
KZR292 Air Astana 4 2026-05-20
KZR140 Air Astana 4 2026-05-23
KZR139 Air Astana 4 2026-05-23
KZR557 - 3 2026-04-28
KZR264 Air Astana 3 2026-05-18
KZR925 Air Astana 2 2026-05-30
KZR917 Air Astana 2 2026-05-03
KZR291 Air Astana 2 2026-05-16
KZR983 Air Astana 1 2026-05-12
KZR908 Air Astana 1 2026-05-22
KZR907 Air Astana 1 2026-05-22
KZR558 - 1 2026-04-13
KZR314 Air Astana 1 2026-05-13
KZR313 Air Astana 1 2026-05-13
AYN7176 - 1 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KZR925 ALA → AYT May 30, 06:25 UTCMay 30, 06:50 UTC25m
2026-05-30 KZR925 ALA → AYT May 30, 04:15 UTCMay 30, 05:35 UTC1h 20m
2026-05-27 KZR216 AYT → NQZ May 27, 08:40 UTCMay 27, 10:45 UTC2h 5m
2026-05-27 KZR215 NQZ → AYT May 27, 07:00 UTCMay 27, 07:15 UTC15m
2026-05-27 KZR215 NQZ → AYT May 27, 05:14 UTCMay 27, 06:15 UTC1h 0m
2026-05-26 KZR216 AYT → NQZ May 26, 09:35 UTCMay 27, 06:15 UTC20h 40m
2026-05-26 KZR216 AYT → NQZ May 26, 08:39 UTCMay 27, 06:15 UTC21h 35m
2026-05-26 KZR215 NQZ → AYT May 26, 06:44 UTCMay 26, 06:59 UTC15m
2026-05-26 KZR215 NQZ → AYT May 26, 04:54 UTCMay 26, 05:59 UTC1h 5m
2026-05-23 KZR140 TBS → ALA May 23, 18:55 UTCMay 23, 19:25 UTC30m
2026-05-23 KZR139 ALA → TBS May 23, 16:55 UTCMay 23, 17:20 UTC25m
2026-05-22 KZR908 DEL → ALA May 22, 06:30 UTCMay 22, 07:15 UTC45m
2026-05-22 KZR907 ALA → DEL May 22, 04:00 UTCMay 22, 04:40 UTC40m
2026-05-20 KZR292 BOM → ALA May 20, 01:25 UTCMay 20, 03:10 UTC1h 45m
2026-05-19 KZR266 JED → ALA May 19, 05:05 UTCMay 19, 23:40 UTC18h 35m
2026-05-19 KZR266 JED → ALA May 19, 03:05 UTCMay 19, 23:40 UTC20h 35m
2026-05-19 KZR266 JED → ALA May 19, 02:45 UTCMay 19, 23:40 UTC20h 55m
2026-05-19 KZR266 JED → ALA May 19, 00:10 UTCMay 19, 23:00 UTC22h 50m
2026-05-18 KZR266 JED → ALA May 18, 15:05 UTCMay 19, 13:40 UTC22h 34m
2026-05-18 KZR264 MED → ALA May 18, 13:40 UTCMay 19, 13:00 UTC23h 19m
2026-05-18 KZR264 MED → ALA May 18, 07:05 UTCMay 19, 05:40 UTC22h 34m
2026-05-18 KZR264 MED → ALA May 18, 05:05 UTCMay 19, 05:00 UTC23h 54m
2026-05-17 KZR292 BOM → ALA May 17, 00:55 UTCMay 17, 03:00 UTC2h 5m
2026-05-16 KZR291 ALA → BOM May 16, 21:10 UTCMay 16, 22:55 UTC1h 45m
2026-05-13 KZR314 SCO → NQZ May 13, 18:35 UTCMay 13, 19:10 UTC35m
2026-05-13 KZR313 NQZ → SCO May 13, 16:40 UTCMay 13, 16:55 UTC15m
2026-05-12 KZR983 NQZ → GUW May 12, 17:35 UTCMay 12, 17:40 UTC5m
2026-05-12 KZR216 AYT → NQZ May 12, 08:40 UTCMay 12, 10:35 UTC1h 55m
2026-05-12 KZR215 NQZ → AYT May 12, 07:05 UTCMay 12, 07:20 UTC15m
2026-05-12 KZR215 NQZ → AYT May 12, 05:05 UTCMay 12, 06:20 UTC1h 15m
2026-05-10 AYN7176 - May 10, 17:05 UTCMay 10, 17:15 UTC10m
2026-05-08 KZR140 TBS → ALA May 8, 18:35 UTCMay 8, 19:05 UTC30m
2026-05-08 KZR139 ALA → TBS May 8, 16:50 UTCMay 8, 17:20 UTC30m
2026-05-07 KZR139 ALA → TBS May 7, 19:05 UTCMay 8, 17:20 UTC22h 15m
2026-05-07 KZR140 TBS → ALA May 7, 18:55 UTCMay 8, 17:00 UTC22h 5m
2026-05-07 KZR139 ALA → TBS May 7, 16:45 UTCMay 7, 17:15 UTC30m
2026-05-05 KZR216 AYT → NQZ May 5, 09:00 UTCMay 5, 11:00 UTC2h 0m
2026-05-05 KZR215 NQZ → AYT May 5, 07:10 UTCMay 5, 07:30 UTC20m
2026-05-05 KZR215 NQZ → AYT May 5, 05:15 UTCMay 5, 06:35 UTC1h 20m
2026-05-03 KZR918 IST → NQZ May 3, 10:20 UTCMay 3, 11:30 UTC1h 10m
2026-05-03 KZR917 NQZ → IST May 3, 05:50 UTCMay 3, 06:35 UTC45m
2026-05-01 KZR216 AYT → NQZ May 1, 10:15 UTCMay 1, 12:15 UTC2h 0m
2026-05-01 KZR215 NQZ → AYT May 1, 07:00 UTCMay 1, 07:25 UTC25m
2026-04-30 KZR215 NQZ → AYT Apr 30, 11:05 UTCMay 1, 06:20 UTC19h 15m
2026-04-30 KZR918 IST → NQZ Apr 30, 10:10 UTCMay 1, 06:20 UTC20h 10m
2026-04-30 KZR917 NQZ → IST Apr 30, 04:50 UTCApr 30, 06:20 UTC1h 30m
2026-04-28 KZR557 - Apr 28, 04:40 UTCApr 28, 12:55 UTC8h 15m
2026-04-26 KZR918 IST → NQZ Apr 26, 05:45 UTCApr 26, 11:25 UTC5h 40m
2026-04-25 KZR918 IST → NQZ Apr 25, 11:05 UTCApr 26, 11:00 UTC23h 55m
2026-04-25 KZR216 AYT → NQZ Apr 25, 09:10 UTCApr 26, 06:25 UTC21h 15m

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

Mode-S 4CA364 frequently asked

What is Mode-S code 4CA364?
4CA364 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KDF.
Where is Mode-S 4CA364 registered?
Mode-S code 4CA364 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA364 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 4CA364, octal 23121544, decimal 5,022,564.
What flights does 4CA364 operate?
Mode-S 4CA364 has broadcast 19 distinct callsigns, including KZR215, KZR216, KZR266, KZR918, KZR292.