sensors Mode-S transponder

4CAE75

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-SIW · AIRBUS A-320neo

Hex
4CAE75
Octal
23127165
Decimal
5,025,397
Country
IE
Tail
EI-SIW
Type
A20N
No current signal · last broadcast 14h ago
Flights observed
14
Distinct callsigns
12
Country
IE
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 4CAE75.

Country allocation

The ICAO 24-bit address 4CAE75 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 12 distinct

Callsign Airline Flights Last seen
SAS455 Scandinavian Airlines System 2 2026-04-13
SAS106 - 2 2026-04-14
SAS793 - 1 2026-04-13
SAS74E - 1 2026-04-13
SAS542 - 1 2026-04-12
SAS541 - 1 2026-04-12
SAS45A - 1 2026-04-14
SAS454 - 1 2026-04-13
SAS410 - 1 2026-04-13
SAS2034 - 1 2026-04-13
SAS157 - 1 2026-04-14
SAS105 - 1 2026-04-14

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 SAS157 - Apr 14, 10:05 UTCApr 14, 10:45 UTC40m
2026-04-14 SAS106 - Apr 14, 09:10 UTCApr 14, 09:15 UTC5m
2026-04-14 SAS106 - Apr 14, 08:25 UTCApr 14, 09:05 UTC40m
2026-04-14 SAS105 - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-14 SAS45A - Apr 14, 05:15 UTCApr 14, 05:20 UTC5m
2026-04-13 SAS2034 - Apr 13, 18:50 UTCApr 13, 19:25 UTC35m
2026-04-13 SAS410 - Apr 13, 16:30 UTCApr 13, 17:25 UTC55m
2026-04-13 SAS74E - Apr 13, 12:45 UTCApr 13, 14:45 UTC2h 0m
2026-04-13 SAS793 - Apr 13, 09:15 UTCApr 13, 11:25 UTC2h 10m
2026-04-13 SAS455 OSL → CPH Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 SAS455 OSL → CPH Apr 13, 07:05 UTCApr 13, 08:05 UTC1h 0m
2026-04-13 SAS454 - Apr 13, 05:10 UTCApr 13, 06:00 UTC50m
2026-04-12 SAS542 - Apr 12, 18:35 UTCApr 12, 20:05 UTC1h 30m
2026-04-12 SAS541 - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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

Mode-S 4CAE75 frequently asked

What is Mode-S code 4CAE75?
4CAE75 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SIW.
Where is Mode-S 4CAE75 registered?
Mode-S code 4CAE75 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE75 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE75, octal 23127165, decimal 5,025,397.
What flights does 4CAE75 operate?
Mode-S 4CAE75 has broadcast 12 distinct callsigns, including SAS455, SAS106, SAS793, SAS74E, SAS542.