sensors Mode-S transponder

4CAE96

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IKN · BOEING 737 MAX 8

Hex
4CAE96
Octal
23127226
Decimal
5,025,430
Country
IE
Tail
EI-IKN
Type
B38M
No current signal · last broadcast 20h ago
Flights observed
14
Distinct callsigns
6
Country
IE
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 4CAE96.

Country allocation

The ICAO 24-bit address 4CAE96 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 6 distinct

Callsign Airline Flights Last seen
RYR9HV - 3 2026-04-13
RYR56PC Ryanair 3 2026-04-13
RYR18ZP - 3 2026-04-13
RYR6253 - 2 2026-04-14
RYR39ZU - 2 2026-04-13
RYR784 - 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 RYR6253 - Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 RYR6253 - Apr 14, 05:25 UTCApr 14, 07:10 UTC1h 45m
2026-04-13 RYR18ZP - Apr 13, 22:30 UTCApr 13, 23:45 UTC1h 15m
2026-04-13 RYR9HV - Apr 13, 19:50 UTCApr 13, 20:50 UTC1h 0m
2026-04-13 RYR9HV - Apr 13, 17:10 UTCApr 13, 19:50 UTC2h 40m
2026-04-13 RYR39ZU - Apr 13, 15:50 UTCApr 13, 16:05 UTC15m
2026-04-13 RYR39ZU - Apr 13, 13:20 UTCApr 13, 16:05 UTC2h 45m
2026-04-13 RYR784 - Apr 13, 11:50 UTCApr 13, 12:15 UTC25m
2026-04-13 RYR56PC BOH → MLA Apr 13, 08:20 UTCApr 13, 09:55 UTC1h 35m
2026-04-13 RYR56PC BOH → MLA Apr 13, 07:55 UTCApr 13, 09:55 UTC2h 0m
2026-04-13 RYR56PC BOH → MLA Apr 13, 06:50 UTCApr 13, 08:15 UTC1h 25m
2026-04-12 RYR18ZP - Apr 12, 23:55 UTCApr 13, 00:15 UTC20m
2026-04-12 RYR18ZP - Apr 12, 19:50 UTCApr 12, 20:15 UTC25m
2026-04-12 RYR9HV - Apr 12, 17:15 UTCApr 12, 18:05 UTC50m

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

Mode-S 4CAE96 frequently asked

What is Mode-S code 4CAE96?
4CAE96 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IKN.
Where is Mode-S 4CAE96 registered?
Mode-S code 4CAE96 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE96 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE96, octal 23127226, decimal 5,025,430.
What flights does 4CAE96 operate?
Mode-S 4CAE96 has broadcast 6 distinct callsigns, including RYR9HV, RYR56PC, RYR18ZP, RYR6253, RYR39ZU.