sensors Mode-S transponder

4CAE6B

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IJX · BOEING 737 MAX 8

Hex
4CAE6B
Octal
23127153
Decimal
5,025,387
Country
IE
Tail
EI-IJX
Type
B38M
No current signal · last broadcast 13h ago
Flights observed
16
Distinct callsigns
10
Country
IE
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 4CAE6B.

Country allocation

The ICAO 24-bit address 4CAE6B 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 10 distinct

Callsign Airline Flights Last seen
RYR69QT - 3 2026-04-13
RYR3486 Ryanair 3 2026-04-13
RYR3487 - 2 2026-04-13
RYR26QM Ryanair 2 2026-04-14
RYR7LD - 1 2026-04-14
RYR6607 - 1 2026-04-13
RYR64BJ - 1 2026-04-12
RYR575A - 1 2026-04-13
RYR39YC - 1 2026-04-13
RYR1UE - 1 2026-04-12

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-04-14 RYR26QM LBA → ALC Apr 14, 09:10 UTCApr 14, 09:40 UTC30m
2026-04-14 RYR26QM LBA → ALC Apr 14, 07:30 UTCApr 14, 09:05 UTC1h 35m
2026-04-14 RYR7LD - Apr 14, 05:15 UTCApr 14, 06:35 UTC1h 20m
2026-04-13 RYR6607 - Apr 13, 22:00 UTCApr 13, 22:30 UTC30m
2026-04-13 RYR575A - Apr 13, 20:25 UTCApr 13, 21:00 UTC35m
2026-04-13 RYR39YC LTN → ALC Apr 13, 17:30 UTCApr 13, 19:35 UTC2h 5m
2026-04-13 RYR69QT - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 RYR69QT - Apr 13, 15:50 UTCApr 13, 16:40 UTC50m
2026-04-13 RYR69QT - Apr 13, 14:25 UTCApr 13, 16:15 UTC1h 50m
2026-04-13 RYR3487 - Apr 13, 11:55 UTCApr 13, 12:25 UTC30m
2026-04-13 RYR3487 - Apr 13, 09:55 UTCApr 13, 12:15 UTC2h 20m
2026-04-13 RYR3486 ALC → LNZ Apr 13, 08:20 UTCApr 13, 09:00 UTC40m
2026-04-13 RYR3486 ALC → LNZ Apr 13, 07:55 UTCApr 13, 09:00 UTC1h 5m
2026-04-13 RYR3486 ALC → LNZ Apr 13, 06:45 UTCApr 13, 08:15 UTC1h 30m
2026-04-12 RYR1UE - Apr 12, 19:10 UTCApr 12, 20:15 UTC1h 5m
2026-04-12 RYR64BJ - 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-IJX page for operator, model, and routing details .

Mode-S 4CAE6B frequently asked

What is Mode-S code 4CAE6B?
4CAE6B is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IJX.
Where is Mode-S 4CAE6B registered?
Mode-S code 4CAE6B is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE6B 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 4CAE6B, octal 23127153, decimal 5,025,387.
What flights does 4CAE6B operate?
Mode-S 4CAE6B has broadcast 10 distinct callsigns, including RYR69QT, RYR3486, RYR3487, RYR26QM, RYR7LD.