sensors Mode-S transponder

4CADE3

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IGX · BOEING 737 MAX 8

Hex
4CADE3
Octal
23126743
Decimal
5,025,251
Country
IE
Tail
EI-IGX
Type
B38M
Broadcasting now · callsign RYR5LV · 39,000 ft
Flights observed
15
Distinct callsigns
8
Country
IE
Last broadcast
12h ago

Current position

4CADE3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CADE3 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 8 distinct

Callsign Airline Flights Last seen
RYR9NL - 3 2026-04-13
RYR672G Ryanair 3 2026-04-13
RYR5LV - 3 2026-04-13
RYR75CZ - 2 2026-04-14
RYR77SB - 1 2026-04-12
RYR6GE - 1 2026-04-12
RYR623J - 1 2026-04-13
RYR434E - 1 2026-04-14

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 RYR434E - Apr 14, 09:25 UTCApr 14, 11:05 UTC1h 40m
2026-04-14 RYR75CZ - Apr 14, 07:10 UTCApr 14, 08:35 UTC1h 25m
2026-04-14 RYR75CZ - Apr 14, 05:15 UTCApr 14, 07:10 UTC1h 55m
2026-04-13 RYR623J - Apr 13, 20:40 UTCApr 13, 23:40 UTC3h 0m
2026-04-13 RYR9NL - Apr 13, 16:15 UTCApr 13, 19:30 UTC3h 15m
2026-04-13 RYR9NL - Apr 13, 15:50 UTCApr 13, 19:30 UTC3h 40m
2026-04-13 RYR9NL - Apr 13, 15:20 UTCApr 13, 16:15 UTC55m
2026-04-13 RYR5LV - Apr 13, 12:20 UTCApr 13, 13:40 UTC1h 20m
2026-04-13 RYR5LV - Apr 13, 11:55 UTCApr 13, 13:40 UTC1h 45m
2026-04-13 RYR5LV - Apr 13, 10:10 UTCApr 13, 12:15 UTC2h 5m
2026-04-13 RYR672G TFS → STN Apr 13, 08:20 UTCApr 13, 09:05 UTC45m
2026-04-13 RYR672G TFS → STN Apr 13, 07:55 UTCApr 13, 09:05 UTC1h 10m
2026-04-13 RYR672G TFS → STN Apr 13, 05:05 UTCApr 13, 08:15 UTC3h 10m
2026-04-12 RYR6GE - Apr 12, 19:55 UTCApr 12, 20:15 UTC20m
2026-04-12 RYR77SB - Apr 12, 17:15 UTCApr 12, 19:10 UTC1h 55m

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

Mode-S 4CADE3 frequently asked

What is Mode-S code 4CADE3?
4CADE3 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IGX.
Where is Mode-S 4CADE3 registered?
Mode-S code 4CADE3 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADE3 broadcasting right now?
Yes. Mode-S 4CADE3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADE3, octal 23126743, decimal 5,025,251.
What flights does 4CADE3 operate?
Mode-S 4CADE3 has broadcast 8 distinct callsigns, including RYR9NL, RYR672G, RYR5LV, RYR75CZ, RYR77SB.