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 Jul 26, 09:50 UTC
Flights observed
161
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 09:50 UTC

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 20 distinct

Callsign Airline Flights Last seen
KZR215 Air Astana 31 2026-07-25
KZR225 Air Astana 20 2026-07-26
KZR216 Air Astana 15 2026-07-21
KZR925 Air Astana 9 2026-06-24
KZR226 Air Astana 9 2026-07-26
KZR926 Air Astana 6 2026-06-24
KZR292 Air Astana 5 2026-06-01
KZR266 Air Astana 5 2026-05-19
KZR918 Air Astana 4 2026-05-03
KZR908 - 4 2026-06-23
KZR557 - 4 2026-06-16
KZR140 Air Astana 4 2026-05-23
KZR139 Air Astana 4 2026-05-23
KZR907 Air Astana 3 2026-06-06
KZR661 Air Astana 3 2026-07-18
KZR291 Air Astana 3 2026-05-31
KZR264 Air Astana 3 2026-05-18
KZR964 - 2 2026-06-22
KZR963 Air Astana 2 2026-06-06
KZR917 Air Astana 2 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KZR226 AYT → NQZ Jul 26, 08:00 UTCJul 26, 09:50 UTC1h 50m
2026-07-26 KZR225 NQZ → AYT Jul 26, 04:15 UTCJul 26, 06:15 UTC2h 0m
2026-07-25 KZR225 NQZ → AYT Jul 25, 09:15 UTCJul 26, 06:15 UTC21h 0m
2026-07-25 KZR215 NQZ → AYT Jul 25, 07:15 UTCJul 25, 07:40 UTC25m
2026-07-25 KZR215 NQZ → AYT Jul 25, 05:15 UTCJul 25, 06:30 UTC1h 15m
2026-07-24 KZR215 NQZ → AYT Jul 24, 09:05 UTCJul 25, 06:30 UTC21h 25m
2026-07-24 KZR226 AYT → NQZ Jul 24, 08:10 UTCJul 25, 06:30 UTC22h 20m
2026-07-24 KZR225 NQZ → AYT Jul 24, 03:45 UTCJul 24, 06:15 UTC2h 30m
2026-07-23 KZR225 NQZ → AYT Jul 23, 09:05 UTCJul 24, 06:15 UTC21h 10m
2026-07-23 KZR225 NQZ → AYT Jul 23, 08:10 UTCJul 24, 06:15 UTC22h 5m
2026-07-23 KZR225 NQZ → AYT Jul 23, 03:40 UTCJul 23, 06:10 UTC2h 30m
2026-07-21 KZR216 AYT → NQZ Jul 21, 08:40 UTCJul 21, 10:35 UTC1h 55m
2026-07-20 KZR215 NQZ → AYT Jul 20, 13:40 UTCJul 21, 07:15 UTC17h 34m
2026-07-20 KZR119 NQZ → TBS Jul 20, 11:40 UTCJul 20, 12:10 UTC30m
2026-07-19 KZR216 - Jul 19, 09:05 UTCJul 19, 10:55 UTC1h 50m
2026-07-18 KZR215 NQZ → AYT Jul 18, 13:05 UTCJul 19, 07:40 UTC18h 35m
2026-07-18 KZR215 NQZ → AYT Jul 18, 12:55 UTCJul 19, 07:40 UTC18h 45m
2026-07-18 KZR661 NQZ → BJV Jul 18, 08:50 UTCJul 18, 11:25 UTC2h 35m
2026-07-17 KZR216 - Jul 17, 09:10 UTCJul 18, 09:00 UTC23h 51m
2026-07-17 KZR215 - Jul 17, 05:35 UTCJul 17, 07:50 UTC2h 15m
2026-07-14 KZR216 - Jul 14, 09:15 UTCJul 14, 11:00 UTC1h 45m
2026-07-14 KZR215 - Jul 14, 05:00 UTCJul 14, 07:30 UTC2h 30m
2026-07-12 KZR226 - Jul 12, 08:30 UTCJul 12, 10:20 UTC1h 50m
2026-07-11 KZR225 - Jul 11, 12:45 UTCJul 12, 06:10 UTC17h 25m
2026-07-11 KZR661 - Jul 11, 08:35 UTCJul 11, 11:10 UTC2h 35m
2026-07-10 KZR226 - Jul 10, 09:05 UTCJul 11, 09:00 UTC23h 55m
2026-07-10 KZR226 - Jul 10, 08:00 UTCJul 10, 09:50 UTC1h 50m
2026-07-09 KZR225 - Jul 9, 17:50 UTCJul 10, 06:25 UTC12h 35m
2026-07-09 KZR227 - Jul 9, 15:35 UTCJul 9, 15:45 UTC10m
2026-07-09 KZR227 - Jul 9, 12:00 UTCJul 9, 12:30 UTC30m
2026-07-07 KZR226 - Jul 7, 08:05 UTCJul 7, 09:50 UTC1h 45m
2026-07-07 KZR225 - Jul 7, 03:55 UTCJul 7, 06:05 UTC2h 10m
2026-07-06 KZR225 - Jul 6, 09:05 UTCJul 7, 06:05 UTC21h 0m
2026-07-06 KZR216 - Jul 6, 08:55 UTCJul 7, 06:05 UTC21h 10m
2026-07-06 KZR215 - Jul 6, 04:50 UTCJul 6, 07:15 UTC2h 25m
2026-07-05 KZR215 - Jul 5, 09:05 UTCJul 6, 07:15 UTC22h 10m
2026-07-05 KZR216 - Jul 5, 08:45 UTCJul 5, 10:35 UTC1h 50m
2026-07-05 KZR215 - Jul 5, 04:45 UTCJul 5, 07:05 UTC2h 20m
2026-07-04 KZR215 - Jul 4, 09:05 UTCJul 5, 07:05 UTC22h 0m
2026-07-04 KZR215 - Jul 4, 08:55 UTCJul 5, 07:00 UTC22h 5m
2026-07-04 KZR215 - Jul 4, 07:05 UTCJul 4, 07:35 UTC30m
2026-07-04 KZR215 - Jul 4, 05:10 UTCJul 4, 06:25 UTC1h 15m
2026-07-03 KZR215 - Jul 3, 09:05 UTCJul 4, 06:25 UTC21h 20m
2026-07-03 KZR226 - Jul 3, 07:50 UTCJul 4, 06:25 UTC22h 35m
2026-07-03 KZR225 - Jul 3, 03:45 UTCJul 3, 06:10 UTC2h 25m
2026-07-02 KZR225 - Jul 2, 09:05 UTCJul 3, 06:10 UTC21h 5m
2026-07-02 KZR225 - Jul 2, 08:15 UTCJul 3, 06:10 UTC21h 55m
2026-07-02 KZR225 - Jul 2, 05:45 UTCJul 2, 06:00 UTC15m
2026-07-02 KZR225 - Jul 2, 03:40 UTCJul 2, 05:05 UTC1h 25m
2026-06-30 KZR216 - Jun 30, 09:05 UTCJun 30, 10:55 UTC1h 50m

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 Jul 26, 09:50 UTC.
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 20 distinct callsigns, including KZR215, KZR225, KZR216, KZR925, KZR226.