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 9h ago
Flights observed
105
Distinct callsigns
20
Country
IE
Last broadcast
9h 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 15 2026-05-28
KZR932 Air Astana 12 2026-05-28
KZR931 Air Astana 10 2026-05-27
KZR912 Air Astana 10 2026-05-28
KZR921 Air Astana 5 2026-05-15
KZR586 Air Astana 5 2026-05-18
KZR563 Air Astana 5 2026-06-01
KZR916 Air Astana 4 2026-05-03
KZR267 Air Astana 4 2026-04-30
KZR564 Air Astana 3 2026-05-24
KZR268 Air Astana 3 2026-04-30
KZR227 Air Astana 3 2026-05-09
KZR141 Air Astana 3 2026-04-30
KZR922 Air Astana 2 2026-05-16
KZR915 Air Astana 2 2026-04-17
KZR907 Air Astana 2 2026-05-25
KZR200 - 2 2026-05-12
KZR142 Air Astana 2 2026-04-30
KZR964 Air Astana 1 2026-05-31
KZR963 Air Astana 1 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 KZR563 ALA → HKT Jun 1, 22:25 UTCJun 2, 10:00 UTC11h 35m
2026-05-31 KZR964 DEL → ALA May 31, 20:50 UTCMay 31, 21:40 UTC50m
2026-05-31 KZR963 ALA → DEL May 31, 18:30 UTCMay 31, 19:30 UTC1h 0m
2026-05-30 KZR563 ALA → HKT May 30, 22:05 UTCMay 31, 19:30 UTC21h 25m
2026-05-30 KZR563 ALA → HKT May 30, 21:25 UTCMay 31, 19:30 UTC22h 5m
2026-05-30 KZR563 ALA → HKT May 30, 03:45 UTCMay 30, 23:05 UTC19h 20m
2026-05-29 KZR563 ALA → HKT May 29, 23:00 UTCMay 30, 22:00 UTC23h 0m
2026-05-29 KZR914 IST → ALA May 29, 09:40 UTCMay 30, 03:45 UTC18h 5m
2026-05-29 KZR913 ALA → IST May 29, 07:35 UTCMay 29, 08:00 UTC25m
2026-05-28 KZR912 IST → ALA May 28, 19:15 UTCMay 29, 06:50 UTC11h 35m
2026-05-28 KZR911 ALA → IST May 28, 17:20 UTCMay 28, 17:40 UTC20m
2026-05-28 KZR932 BKK → ALA May 28, 03:40 UTCMay 28, 16:45 UTC13h 5m
2026-05-27 KZR931 ALA → BKK May 27, 22:00 UTCMay 28, 02:00 UTC4h 0m
2026-05-26 KZR912 IST → ALA May 26, 20:34 UTCMay 26, 21:20 UTC45m
2026-05-26 KZR911 ALA → IST May 26, 16:59 UTCMay 26, 17:15 UTC15m
2026-05-26 KZR911 ALA → IST May 26, 06:25 UTCMay 26, 16:20 UTC9h 55m
2026-05-25 KZR907 ALA → DEL May 25, 18:20 UTCMay 26, 04:50 UTC10h 30m
2026-05-24 KZR564 HKT → ALA May 24, 23:00 UTCMay 25, 16:50 UTC17h 50m
2026-05-24 KZR564 HKT → ALA May 24, 21:35 UTCMay 25, 16:50 UTC19h 15m
2026-05-23 KZR932 BKK → ALA May 23, 03:35 UTCMay 23, 07:50 UTC4h 15m
2026-05-22 KZR931 ALA → BKK May 22, 21:45 UTCMay 23, 01:50 UTC4h 5m
2026-05-21 KZR912 IST → ALA May 21, 20:20 UTCMay 21, 21:35 UTC1h 15m
2026-05-21 KZR912 IST → ALA May 21, 19:25 UTCMay 21, 19:35 UTC10m
2026-05-21 KZR911 ALA → IST May 21, 16:50 UTCMay 21, 17:00 UTC10m
2026-05-21 KZR911 ALA → IST May 21, 14:55 UTCMay 21, 16:10 UTC1h 15m
2026-05-18 KZR564 HKT → ALA May 18, 14:15 UTCMay 19, 09:50 UTC19h 34m
2026-05-18 KZR586 MLE → ALA May 18, 12:35 UTCMay 19, 09:50 UTC21h 14m
2026-05-18 KZR586 MLE → ALA May 18, 10:05 UTCMay 19, 09:50 UTC23h 44m
2026-05-18 KZR586 MLE → ALA May 18, 08:05 UTCMay 19, 08:00 UTC23h 54m
2026-05-18 KZR586 MLE → ALA May 18, 06:25 UTCMay 19, 05:55 UTC23h 29m
2026-05-17 KZR586 MLE → ALA May 17, 20:10 UTCMay 18, 16:10 UTC20h 0m
2026-05-17 KZR911 ALA → IST May 17, 17:05 UTCMay 17, 17:25 UTC20m
2026-05-17 KZR911 ALA → IST May 17, 14:40 UTCMay 17, 16:05 UTC1h 25m
2026-05-16 KZR911 ALA → IST May 16, 18:05 UTCMay 17, 16:05 UTC22h 0m
2026-05-16 KZR922 FRA → NQZ May 16, 16:05 UTCMay 17, 16:01 UTC23h 55m
2026-05-16 KZR922 FRA → NQZ May 16, 14:05 UTCMay 16, 18:50 UTC4h 45m
2026-05-15 KZR921 NQZ → FRA May 15, 16:05 UTCMay 16, 11:21 UTC19h 16m
2026-05-15 KZR921 NQZ → FRA May 15, 14:05 UTCMay 16, 11:21 UTC21h 15m
2026-05-15 KZR921 NQZ → FRA May 15, 13:50 UTCMay 16, 11:21 UTC21h 30m
2026-05-15 KZR921 NQZ → FRA May 15, 07:20 UTCMay 15, 11:40 UTC4h 20m
2026-05-14 KZR921 NQZ → FRA May 14, 12:35 UTCMay 15, 11:40 UTC23h 5m
2026-05-14 KZR210 ICN → NQZ May 14, 07:05 UTCMay 14, 07:25 UTC20m
2026-05-14 KZR209 NQZ → ICN May 14, 03:35 UTCMay 14, 03:55 UTC20m
2026-05-12 KZR200 - May 12, 03:35 UTCMay 12, 11:40 UTC8h 5m
2026-05-11 KZR200 - May 11, 12:05 UTCMay 12, 11:40 UTC23h 36m
2026-05-11 KZR199 - May 11, 06:45 UTCMay 12, 04:50 UTC22h 5m
2026-05-09 KZR228 PEK → NQZ May 9, 20:30 UTCMay 9, 20:44 UTC15m
2026-05-09 KZR227 NQZ → PEK May 9, 18:05 UTCMay 9, 18:20 UTC15m
2026-05-09 KZR227 NQZ → PEK May 9, 14:25 UTCMay 9, 14:50 UTC25m
2026-05-08 KZR227 NQZ → PEK May 8, 16:05 UTCMay 9, 14:50 UTC22h 45m

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 9h 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, KZR931, KZR912, KZR921.