sensors Mode-S transponder

4CAC13

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAC13
Octal
23126023
Decimal
5,024,787
Country
IE
Tail
EI-KGD
Type
A21N
No current signal · last broadcast 13h ago
Flights observed
102
Distinct callsigns
20
Country
IE
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 4CAC13.

Country allocation

The ICAO 24-bit address 4CAC13 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
KZR921 Air Astana 19 2026-05-27
KZR931 Air Astana 9 2026-05-09
KZR922 Air Astana 9 2026-05-27
KZR585 Air Astana 7 2026-05-07
KZR932 Air Astana 5 2026-05-10
KZR911 Air Astana 5 2026-05-08
KZR572 - 5 2026-05-18
KZR645 Air Astana 4 2026-04-22
KZR586 Air Astana 4 2026-04-16
KZR912 Air Astana 3 2026-05-08
KZR267 Air Astana 3 2026-05-28
KZR964 Air Astana 2 2026-05-29
KZR963 Air Astana 2 2026-05-28
KZR918 Air Astana 2 2026-05-23
KZR646 Air Astana 2 2026-04-22
KZR268 Air Astana 2 2026-05-01
KZR227 Air Astana 2 2026-05-20
KZR199 - 2 2026-05-18
KZR193 Air Astana 2 2026-05-05
KZR162 Air Astana 2 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 KZR964 DEL → ALA May 29, 20:35 UTCMay 29, 21:20 UTC45m
2026-05-28 KZR963 ALA → DEL May 28, 23:00 UTCMay 29, 18:40 UTC19h 40m
2026-05-28 KZR267 ALA → PEK May 28, 20:55 UTCMay 28, 21:15 UTC20m
2026-05-27 KZR922 FRA → NQZ May 27, 13:55 UTCMay 27, 17:50 UTC3h 55m
2026-05-27 KZR921 NQZ → FRA May 27, 07:05 UTCMay 27, 11:30 UTC4h 25m
2026-05-26 KZR921 NQZ → FRA May 26, 14:50 UTCMay 27, 11:30 UTC20h 40m
2026-05-26 KZR922 FRA → NQZ May 26, 14:00 UTCMay 27, 11:30 UTC21h 30m
2026-05-26 KZR921 NQZ → FRA May 26, 06:59 UTCMay 26, 11:20 UTC4h 20m
2026-05-25 KZR921 NQZ → FRA May 25, 14:50 UTCMay 26, 11:20 UTC20h 30m
2026-05-25 KZR921 NQZ → FRA May 25, 13:45 UTCMay 26, 11:20 UTC21h 35m
2026-05-25 KZR921 NQZ → FRA May 25, 07:00 UTCMay 25, 11:20 UTC4h 20m
2026-05-24 KZR921 NQZ → FRA May 24, 12:10 UTCMay 25, 10:45 UTC22h 35m
2026-05-24 KZR2100 ICN → NQZ May 24, 06:30 UTCMay 24, 12:40 UTC6h 10m
2026-05-24 KZR2090 NQZ → ICN May 24, 03:05 UTCMay 24, 03:25 UTC20m
2026-05-23 KZR918 IST → NQZ May 23, 10:30 UTCMay 23, 22:40 UTC12h 11m
2026-05-22 KZR922 FRA → NQZ May 22, 13:45 UTCMay 22, 18:10 UTC4h 25m
2026-05-21 KZR921 NQZ → FRA May 21, 18:05 UTCMay 22, 11:25 UTC17h 20m
2026-05-21 KZR921 NQZ → FRA May 21, 14:50 UTCMay 22, 11:25 UTC20h 35m
2026-05-21 KZR921 NQZ → FRA May 21, 14:00 UTCMay 22, 11:25 UTC21h 25m
2026-05-20 KZR921 NQZ → FRA May 20, 20:15 UTCMay 21, 11:25 UTC15h 10m
2026-05-20 KZR227 NQZ → PEK May 20, 17:55 UTCMay 20, 18:10 UTC15m
2026-05-18 KZR199 - May 18, 16:50 UTCMay 19, 11:50 UTC18h 59m
2026-05-18 KZR199 - May 18, 14:50 UTCMay 19, 11:50 UTC20h 59m
2026-05-18 KZR572 - May 18, 14:05 UTCMay 19, 11:50 UTC21h 44m
2026-05-18 KZR572 - May 18, 08:50 UTCMay 19, 08:45 UTC23h 54m
2026-05-18 KZR572 - May 18, 06:50 UTCMay 19, 04:30 UTC21h 39m
2026-05-18 KZR572 - May 18, 06:25 UTCMay 19, 04:30 UTC22h 4m
2026-05-17 KZR572 - May 17, 17:10 UTCMay 18, 16:45 UTC23h 35m
2026-05-17 KZR922 FRA → NQZ May 17, 14:50 UTCMay 18, 14:45 UTC23h 55m
2026-05-17 KZR922 FRA → NQZ May 17, 13:45 UTCMay 18, 09:35 UTC19h 50m
2026-05-17 KZR921 NQZ → FRA May 17, 07:00 UTCMay 17, 11:30 UTC4h 30m
2026-05-16 KZR921 NQZ → FRA May 16, 14:16 UTCMay 17, 11:30 UTC21h 15m
2026-05-15 KZR918 IST → NQZ May 15, 10:15 UTCMay 15, 11:15 UTC1h 0m
2026-05-14 KZR922 FRA → NQZ May 14, 13:50 UTCMay 15, 06:10 UTC16h 20m
2026-05-14 KZR921 NQZ → FRA May 14, 06:50 UTCMay 14, 11:25 UTC4h 35m
2026-05-13 KZR921 NQZ → FRA May 13, 14:51 UTCMay 14, 11:25 UTC20h 35m
2026-05-13 KZR921 NQZ → FRA May 13, 14:35 UTCMay 14, 11:25 UTC20h 50m
2026-05-12 KZR922 FRA → NQZ May 12, 17:05 UTCMay 13, 15:00 UTC21h 55m
2026-05-12 KZR922 FRA → NQZ May 12, 14:50 UTCMay 13, 14:45 UTC23h 55m
2026-05-12 KZR922 FRA → NQZ May 12, 13:51 UTCMay 12, 18:25 UTC4h 35m
2026-05-12 KZR921 NQZ → FRA May 12, 07:00 UTCMay 12, 11:30 UTC4h 30m
2026-05-11 KZR921 NQZ → FRA May 11, 14:50 UTCMay 12, 11:30 UTC20h 41m
2026-05-11 KZR921 NQZ → FRA May 11, 14:25 UTCMay 12, 11:30 UTC21h 6m
2026-05-10 KZR227 NQZ → PEK May 10, 20:50 UTCMay 11, 14:50 UTC18h 0m
2026-05-10 KZR932 BKK → ALA May 10, 03:25 UTCMay 10, 16:25 UTC13h 0m
2026-05-09 KZR931 ALA → BKK May 9, 21:40 UTCMay 10, 01:45 UTC4h 5m
2026-05-08 KZR931 ALA → BKK May 8, 22:50 UTCMay 9, 22:45 UTC23h 55m
2026-05-08 KZR912 IST → ALA May 8, 21:10 UTCMay 8, 23:05 UTC1h 55m
2026-05-08 KZR911 ALA → IST May 8, 16:55 UTCMay 8, 18:20 UTC1h 25m
2026-05-07 KZR585 ALA → MLE May 7, 01:55 UTCMay 7, 12:35 UTC10h 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-KGD page for operator, model, and routing details .

Mode-S 4CAC13 frequently asked

What is Mode-S code 4CAC13?
4CAC13 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KGD.
Where is Mode-S 4CAC13 registered?
Mode-S code 4CAC13 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAC13 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAC13, octal 23126023, decimal 5,024,787.
What flights does 4CAC13 operate?
Mode-S 4CAC13 has broadcast 20 distinct callsigns, including KZR921, KZR931, KZR922, KZR585, KZR932.