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
Broadcasting now · callsign KZR558 · 34,000 ft
Flights observed
165
Distinct callsigns
20
Country
IE
Last broadcast
33m ago

Current position

4CADE1 is currently broadcasting. Map zoomed to live position.

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 - 24 2026-07-13
KZR216 - 13 2026-07-10
KZR908 Air Astana 8 2026-05-25
KZR225 - 8 2026-07-05
KZR915 Air Astana 7 2026-05-20
KZR963 Air Astana 6 2026-05-22
KZR907 Air Astana 6 2026-05-25
KZR227 - 6 2026-07-06
KZR964 Air Astana 5 2026-05-22
KZR661 - 5 2026-07-08
KZR292 Air Astana 5 2026-05-27
KZR226 - 5 2026-07-05
KZR925 Air Astana 4 2026-05-29
KZR917 Air Astana 4 2026-05-16
KZR897 - 4 2026-07-03
KZR591 - 4 2026-06-22
KZR291 Air Astana 4 2026-05-26
KZR142 - 4 2026-07-01
KZR916 Air Astana 3 2026-05-12
KZR898 - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KZR558 - Jul 14, 09:40 UTCJul 14, 10:15 UTC35m
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
2026-07-03 KZR661 - Jul 3, 13:10 UTCJul 4, 11:10 UTC22h 0m
2026-07-03 KZR661 - Jul 3, 11:05 UTCJul 4, 09:50 UTC22h 45m
2026-07-03 KZR897 - Jul 3, 09:00 UTCJul 3, 09:25 UTC25m
2026-07-02 KZR898 - Jul 2, 13:00 UTCJul 3, 07:05 UTC18h 5m
2026-07-02 KZR898 - Jul 2, 10:45 UTCJul 3, 07:05 UTC20h 20m
2026-07-02 KZR897 - Jul 2, 06:15 UTCJul 2, 08:40 UTC2h 25m
2026-07-01 KZR142 - Jul 1, 10:55 UTCJul 2, 08:40 UTC21h 45m
2026-06-30 KZR660 BJV → ALA Jun 30, 14:20 UTCJul 1, 09:25 UTC19h 5m
2026-06-30 KZR660 BJV → ALA Jun 30, 13:15 UTCJul 1, 09:25 UTC20h 10m
2026-06-30 KZR659 ALA → BJV Jun 30, 09:00 UTCJun 30, 11:45 UTC2h 45m
2026-06-29 KZR659 ALA → BJV Jun 29, 14:19 UTCJun 30, 11:45 UTC21h 26m
2026-06-29 KZR659 ALA → BJV Jun 29, 13:30 UTCJun 30, 11:45 UTC22h 16m
2026-06-29 KZR553 - Jun 29, 08:39 UTCJun 29, 11:35 UTC2h 55m
2026-06-28 KZR142 - Jun 28, 09:45 UTCJun 28, 10:15 UTC30m
2026-06-28 KZR142 - Jun 28, 07:34 UTCJun 28, 08:14 UTC40m
2026-06-27 KZR142 TBS → TBS Jun 27, 10:45 UTCJun 28, 08:14 UTC21h 30m
2026-06-26 KZR141 - Jun 26, 22:29 UTCJun 27, 09:29 UTC11h 0m
2026-06-26 KZR267 ALA → PEK Jun 26, 20:20 UTCJun 26, 20:40 UTC20m
2026-06-26 KZR898 - Jun 26, 10:35 UTCJun 26, 12:50 UTC2h 15m
2026-06-26 KZR897 - Jun 26, 06:35 UTCJun 26, 09:00 UTC2h 25m
2026-06-25 KZR897 - Jun 25, 10:20 UTCJun 26, 09:00 UTC22h 40m
2026-06-25 KZR216 - Jun 25, 08:50 UTCJun 26, 06:39 UTC21h 50m
2026-06-25 KZR215 - Jun 25, 06:44 UTCJun 25, 07:09 UTC25m
2026-06-24 KZR215 - Jun 24, 10:19 UTCJun 25, 06:05 UTC19h 45m
2026-06-24 KZR216 - Jun 24, 08:39 UTCJun 25, 06:05 UTC21h 25m
2026-06-23 KZR215 - Jun 23, 12:25 UTCJun 24, 07:15 UTC18h 50m
2026-06-23 KZR592 - Jun 23, 10:44 UTCJun 24, 07:15 UTC20h 30m
2026-06-22 KZR591 - Jun 22, 18:44 UTCJun 23, 08:25 UTC13h 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?
Yes. Mode-S 4CADE1 is currently airborne.
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, KZR908, KZR225, KZR915.