Apparatus

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sensors Mode-S transponder

4CADE1

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CADE1
Octal
23126741
Decimal
5,025,249
Country
IE
Tail
EI-KDG
Type
A21N
No current signal · last broadcast Jul 25, 10:05 UTC
Flights observed
193
Distinct callsigns
20
Country
IE
Last broadcast
Jul 25, 10:05 UTC

Last known position

Most recent position reported by Mode-S 4CADE1.

Country allocation

The ICAO 24-bit address 4CADE1 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 35 2026-07-23
KZR216 - 14 2026-07-16
KZR225 Air Astana 10 2026-07-19
KZR591 - 9 2026-07-24
KZR908 Air Astana 8 2026-05-25
KZR915 Air Astana 7 2026-05-20
KZR557 - 7 2026-07-21
KZR963 Air Astana 6 2026-05-22
KZR907 Air Astana 6 2026-05-25
KZR227 - 6 2026-07-06
KZR226 - 6 2026-07-19
KZR964 Air Astana 5 2026-05-22
KZR661 - 5 2026-07-08
KZR558 - 5 2026-07-21
KZR292 Air Astana 5 2026-05-27
KZR925 Air Astana 4 2026-05-29
KZR917 Air Astana 4 2026-05-16
KZR897 - 4 2026-07-03
KZR291 Air Astana 4 2026-05-26
KZR142 - 4 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 KZR8226 AYT → NQZ Jul 25, 08:15 UTCJul 25, 10:05 UTC1h 50m
2026-07-24 KZR8225 NQZ → AYT Jul 24, 10:45 UTCJul 25, 06:15 UTC19h 30m
2026-07-24 KZR591 - Jul 24, 05:50 UTCJul 24, 08:20 UTC2h 30m
2026-07-23 KZR591 - Jul 23, 10:20 UTCJul 24, 08:20 UTC22h 0m
2026-07-23 KZR591 - Jul 23, 08:55 UTCJul 24, 08:15 UTC23h 20m
2026-07-23 KZR215 NQZ → AYT Jul 23, 04:45 UTCJul 23, 07:20 UTC2h 35m
2026-07-22 KZR215 NQZ → AYT Jul 22, 10:20 UTCJul 23, 07:20 UTC21h 0m
2026-07-22 KZR215 NQZ → AYT Jul 22, 04:55 UTCJul 22, 10:25 UTC5h 30m
2026-07-21 KZR558 - Jul 21, 10:20 UTCJul 22, 05:25 UTC19h 5m
2026-07-21 KZR558 - Jul 21, 09:30 UTCJul 22, 05:25 UTC19h 55m
2026-07-21 KZR557 - Jul 21, 04:30 UTCJul 21, 07:20 UTC2h 50m
2026-07-20 KZR557 - Jul 20, 10:25 UTCJul 21, 07:20 UTC20h 55m
2026-07-20 KZR557 - Jul 20, 09:05 UTCJul 21, 07:20 UTC22h 14m
2026-07-20 KZR215 NQZ → AYT Jul 20, 05:10 UTCJul 20, 07:40 UTC2h 30m
2026-07-19 KZR215 NQZ → AYT Jul 19, 08:20 UTCJul 20, 07:40 UTC23h 20m
2026-07-19 KZR226 - Jul 19, 08:10 UTCJul 20, 06:15 UTC22h 5m
2026-07-19 KZR225 NQZ → AYT Jul 19, 04:10 UTCJul 19, 06:25 UTC2h 15m
2026-07-18 KZR225 NQZ → AYT Jul 18, 09:25 UTCJul 19, 06:25 UTC21h 0m
2026-07-17 KZR215 - Jul 17, 12:19 UTCJul 18, 07:50 UTC19h 31m
2026-07-17 KZR215 - Jul 17, 10:55 UTCJul 18, 07:50 UTC20h 56m
2026-07-17 KZR591 - Jul 17, 06:29 UTCJul 17, 08:59 UTC2h 30m
2026-07-16 KZR591 - Jul 16, 10:20 UTCJul 17, 08:59 UTC22h 40m
2026-07-16 KZR216 - Jul 16, 09:30 UTCJul 17, 07:20 UTC21h 50m
2026-07-16 KZR215 - Jul 16, 05:30 UTCJul 16, 08:00 UTC2h 30m
2026-07-15 KZR215 - Jul 15, 08:55 UTCJul 16, 08:00 UTC23h 5m
2026-07-15 KZR215 - Jul 15, 05:10 UTCJul 15, 07:30 UTC2h 20m
2026-07-14 KZR215 - Jul 14, 10:20 UTCJul 15, 07:30 UTC21h 9m
2026-07-14 KZR558 - Jul 14, 09:40 UTCJul 15, 07:30 UTC21h 49m
2026-07-14 KZR557 - Jul 14, 04:35 UTCJul 14, 07:35 UTC3h 0m
2026-07-13 KZR557 - Jul 13, 10:20 UTCJul 14, 07:35 UTC21h 15m
2026-07-13 KZR557 - Jul 13, 08:45 UTCJul 14, 07:35 UTC22h 50m
2026-07-13 KZR215 - Jul 13, 05:05 UTCJul 13, 07:20 UTC2h 15m
2026-07-11 KZR8226 - Jul 11, 08:05 UTCJul 11, 10:00 UTC1h 55m
2026-07-11 KZR8225 - Jul 11, 04:35 UTCJul 11, 06:25 UTC1h 50m
2026-07-10 KZR8225 - Jul 10, 10:25 UTCJul 11, 06:25 UTC20h 0m
2026-07-10 KZR216 - Jul 10, 09:10 UTCJul 11, 06:25 UTC21h 15m
2026-07-10 KZR215 - Jul 10, 05:00 UTCJul 10, 07:35 UTC2h 35m
2026-07-09 KZR215 - Jul 9, 10:20 UTCJul 10, 07:35 UTC21h 15m
2026-07-09 KZR215 - Jul 9, 09:00 UTCJul 10, 07:35 UTC22h 35m
2026-07-08 KZR215 - Jul 8, 12:30 UTCJul 9, 07:35 UTC19h 5m
2026-07-08 KZR661 - Jul 8, 08:20 UTCJul 8, 10:55 UTC2h 35m
2026-07-07 KZR661 - Jul 7, 10:20 UTCJul 8, 10:15 UTC23h 55m
2026-07-07 KZR558 - Jul 7, 09:30 UTCJul 7, 11:50 UTC2h 20m
2026-07-06 KZR557 - Jul 6, 15:50 UTCJul 7, 07:25 UTC15h 35m
2026-07-06 KZR227 - Jul 6, 13:05 UTCJul 6, 13:25 UTC20m
2026-07-06 KZR227 - Jul 6, 09:30 UTCJul 6, 09:55 UTC25m
2026-07-05 KZR226 - Jul 5, 08:00 UTCJul 5, 09:55 UTC1h 55m
2026-07-05 KZR225 - Jul 5, 05:35 UTCJul 5, 06:05 UTC30m
2026-07-04 KZR662 BJV → NQZ Jul 4, 12:45 UTCJul 5, 04:55 UTC16h 10m
2026-07-04 KZR661 - Jul 4, 08:30 UTCJul 4, 11:10 UTC2h 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-KDG page for operator, model, and routing details .

Mode-S 4CADE1 frequently asked

What is Mode-S code 4CADE1?
4CADE1 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-KDG.
Where is Mode-S 4CADE1 registered?
Mode-S code 4CADE1 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADE1 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 10:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADE1, octal 23126741, decimal 5,025,249.
What flights does 4CADE1 operate?
Mode-S 4CADE1 has broadcast 20 distinct callsigns, including KZR215, KZR216, KZR225, KZR591, KZR908.