Apparatus

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sensors Mode-S transponder

4CAC10

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAC10
Octal
23126020
Decimal
5,024,784
Country
IE
Tail
EI-KGA
Type
A21N
No current signal · last broadcast 33m ago
Flights observed
191
Distinct callsigns
20
Country
IE
Last broadcast
33m ago

Last known position

Most recent position reported by Mode-S 4CAC10.

Country allocation

The ICAO 24-bit address 4CAC10 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
KZR911 Air Astana 20 2026-06-27
KZR932 Air Astana 17 2026-06-13
KZR564 Air Astana 14 2026-06-12
KZR931 Air Astana 13 2026-06-12
KZR912 Air Astana 12 2026-06-27
KZR563 Air Astana 8 2026-06-06
KZR227 - 8 2026-07-16
KZR917 Air Astana 6 2026-07-13
KZR921 Air Astana 5 2026-05-15
KZR586 Air Astana 5 2026-05-18
KZR916 Air Astana 4 2026-05-03
KZR555 - 4 2026-07-10
KZR267 Air Astana 4 2026-04-30
KZR228 - 4 2026-07-16
KZR200 - 4 2026-07-01
KZR194 Air Astana 4 2026-06-26
KZR913 - 3 2026-06-28
KZR604 Air Astana 3 2026-06-11
KZR268 Air Astana 3 2026-04-30
KZR229 - 3 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 KZR229 DXB → ICN Jul 17, 11:00 UTCJul 17, 23:55 UTC12h 55m
2026-07-16 KZR228 - Jul 16, 17:35 UTCJul 17, 07:14 UTC13h 40m
2026-07-16 KZR227 - Jul 16, 15:35 UTCJul 16, 15:55 UTC20m
2026-07-16 KZR210 - Jul 16, 01:40 UTCJul 16, 12:30 UTC10h 50m
2026-07-16 KZR210 - Jul 16, 00:20 UTCJul 16, 00:45 UTC25m
2026-07-15 KZR209 TBS → ICN Jul 15, 11:45 UTCJul 15, 22:20 UTC10h 35m
2026-07-15 KZR119 NQZ → TBS Jul 15, 10:00 UTCJul 15, 10:30 UTC30m
2026-07-14 KZR8002 LCA → NQZ Jul 14, 14:05 UTCJul 15, 10:30 UTC20h 24m
2026-07-14 KZR8002 LCA → NQZ Jul 14, 13:15 UTCJul 15, 10:30 UTC21h 14m
2026-07-13 KZR8001 - Jul 13, 20:05 UTCJul 14, 11:35 UTC15h 30m
2026-07-13 KZR917 NQZ → IST Jul 13, 17:55 UTCJul 13, 18:10 UTC15m
2026-07-13 KZR917 NQZ → IST Jul 13, 06:01 UTCJul 13, 17:10 UTC11h 10m
2026-07-12 KZR583 - Jul 12, 17:05 UTCJul 13, 16:00 UTC22h 55m
2026-07-11 KZR583 - Jul 11, 22:05 UTCJul 12, 17:30 UTC19h 25m
2026-07-11 KZR228 - Jul 11, 21:45 UTCJul 12, 17:30 UTC19h 45m
2026-07-11 KZR228 - Jul 11, 17:25 UTCJul 11, 17:40 UTC15m
2026-07-11 KZR227 - Jul 11, 13:35 UTCJul 11, 13:50 UTC15m
2026-07-11 KZR227 - Jul 11, 09:55 UTCJul 11, 10:20 UTC25m
2026-07-10 KZR556 - Jul 10, 12:05 UTCJul 11, 10:20 UTC22h 15m
2026-07-10 KZR556 - Jul 10, 10:05 UTCJul 11, 10:00 UTC23h 56m
2026-07-10 KZR555 - Jul 10, 01:50 UTCJul 10, 12:50 UTC11h 0m
2026-07-09 KZR555 - Jul 9, 12:05 UTCJul 10, 11:45 UTC23h 40m
2026-07-09 KZR555 - Jul 9, 10:05 UTCJul 10, 09:35 UTC23h 30m
2026-07-09 KZR638 TGD → NQZ Jul 9, 09:35 UTCJul 10, 05:25 UTC19h 50m
2026-07-08 KZR637 - Jul 8, 16:10 UTCJul 9, 07:40 UTC15h 30m
2026-07-08 KZR227 - Jul 8, 13:05 UTCJul 8, 13:25 UTC20m
2026-07-08 KZR227 - Jul 8, 09:30 UTCJul 8, 09:55 UTC25m
2026-07-06 KZR584 - Jul 6, 10:10 UTCJul 6, 10:35 UTC25m
2026-07-05 KZR206 - Jul 5, 09:10 UTCJul 5, 21:30 UTC12h 20m
2026-07-04 KZR918 - Jul 4, 20:10 UTCJul 5, 07:25 UTC11h 15m
2026-07-04 KZR917 NQZ → IST Jul 4, 17:55 UTCJul 4, 18:15 UTC20m
2026-07-04 KZR917 NQZ → IST Jul 4, 05:05 UTCJul 4, 17:15 UTC12h 10m
2026-07-04 KZR230 - Jul 4, 03:45 UTCJul 4, 04:05 UTC20m
2026-07-04 KZR229 - Jul 4, 00:20 UTCJul 4, 00:50 UTC30m
2026-07-03 KZR229 - Jul 3, 14:00 UTCJul 3, 23:35 UTC9h 35m
2026-07-02 KZR918 - Jul 2, 20:15 UTCJul 3, 12:20 UTC16h 5m
2026-07-02 KZR917 NQZ → IST Jul 2, 17:55 UTCJul 2, 18:15 UTC20m
2026-07-02 KZR917 NQZ → IST Jul 2, 00:20 UTCJul 2, 17:10 UTC16h 50m
2026-07-01 KZR209 - Jul 1, 22:15 UTCJul 1, 22:35 UTC20m
2026-07-01 KZR200 - Jul 1, 03:15 UTCJul 1, 21:30 UTC18h 15m
2026-07-01 KZR200 - Jul 1, 00:55 UTCJul 1, 21:30 UTC20h 35m
2026-06-29 KZR914 IST → ALA Jun 29, 09:40 UTCJun 29, 11:35 UTC1h 55m
2026-06-28 KZR913 - Jun 28, 12:05 UTCJun 29, 06:50 UTC18h 45m
2026-06-28 KZR913 - Jun 28, 10:19 UTCJun 29, 06:50 UTC20h 30m
2026-06-27 KZR912 IST → ALA Jun 27, 19:05 UTCJun 28, 08:29 UTC13h 25m
2026-06-27 KZR911 ALA → IST Jun 27, 17:04 UTCJun 27, 17:20 UTC15m
2026-06-26 KZR911 ALA → IST Jun 26, 21:59 UTCJun 27, 16:24 UTC18h 25m
2026-06-26 KZR911 ALA → IST Jun 26, 16:49 UTCJun 27, 16:00 UTC23h 10m
2026-06-26 KZR194 CXR → ALA Jun 26, 04:59 UTCJun 26, 22:29 UTC17h 30m
2026-06-26 KZR194 CXR → ALA Jun 26, 00:35 UTCJun 26, 22:29 UTC21h 55m

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

Mode-S 4CAC10 frequently asked

What is Mode-S code 4CAC10?
4CAC10 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KGA.
Where is Mode-S 4CAC10 registered?
Mode-S code 4CAC10 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAC10 broadcasting right now?
No active broadcast right now. Last signal was 33m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAC10, octal 23126020, decimal 5,024,784.
What flights does 4CAC10 operate?
Mode-S 4CAC10 has broadcast 20 distinct callsigns, including KZR911, KZR932, KZR564, KZR931, KZR912.