sensors Mode-S transponder

4CAE58

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IJH · BOEING 737 MAX 8

Hex
4CAE58
Octal
23127130
Decimal
5,025,368
Country
IE
Tail
EI-IJH
Type
B38M
No current signal · last broadcast 16h ago
Flights observed
10
Distinct callsigns
7
Country
IE
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 4CAE58.

Country allocation

The ICAO 24-bit address 4CAE58 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 7 distinct

Callsign Airline Flights Last seen
RYR89ZN - 2 2026-04-14
RYR45ZB - 2 2026-04-13
RYR1PY - 2 2026-04-13
RYR67QY - 1 2026-04-13
RYR4UC - 1 2026-04-12
RYR47SE - 1 2026-04-14
RYR2YY Ryanair 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 RYR47SE - Apr 14, 09:45 UTCApr 14, 11:05 UTC1h 20m
2026-04-14 RYR89ZN - Apr 14, 07:10 UTCApr 14, 08:50 UTC1h 40m
2026-04-14 RYR89ZN - Apr 14, 05:45 UTCApr 14, 07:10 UTC1h 25m
2026-04-13 RYR1PY - Apr 13, 19:50 UTCApr 13, 20:00 UTC10m
2026-04-13 RYR1PY - Apr 13, 17:00 UTCApr 13, 20:00 UTC3h 0m
2026-04-13 RYR45ZB - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 RYR45ZB ALC → WAW Apr 13, 12:55 UTCApr 13, 16:00 UTC3h 5m
2026-04-13 RYR67QY - Apr 13, 08:20 UTCApr 13, 10:35 UTC2h 15m
2026-04-13 RYR2YY SNN → FAO Apr 13, 04:40 UTCApr 13, 07:10 UTC2h 30m
2026-04-12 RYR4UC - Apr 12, 17:55 UTCApr 12, 20:15 UTC2h 20m

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

Mode-S 4CAE58 frequently asked

What is Mode-S code 4CAE58?
4CAE58 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IJH.
Where is Mode-S 4CAE58 registered?
Mode-S code 4CAE58 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE58 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE58, octal 23127130, decimal 5,025,368.
What flights does 4CAE58 operate?
Mode-S 4CAE58 has broadcast 7 distinct callsigns, including RYR89ZN, RYR45ZB, RYR1PY, RYR67QY, RYR4UC.