sensors Mode-S transponder

4CAD94

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAD94
Octal
23126624
Decimal
5,025,172
Country
IE
Tail
EI-SCD
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
14
Distinct callsigns
11
Country
IE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4CAD94.

Country allocation

The ICAO 24-bit address 4CAD94 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 11 distinct

Callsign Airline Flights Last seen
SAS89B - 2 2026-04-13
SAS71K - 2 2026-04-14
SAS143 Scandinavian Airlines System 2 2026-04-13
SAS609 - 1 2026-04-13
SAS45T - 1 2026-04-13
SAS407 Scandinavian Airlines System 1 2026-04-13
SAS23A Scandinavian Airlines System 1 2026-04-14
SAS2051 - 1 2026-04-12
SAS2002 Scandinavian Airlines System 1 2026-04-12
SAS150 - 1 2026-04-13
SAS144 - 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 SAS23A MXP → CPH Apr 14, 09:50 UTCApr 14, 11:05 UTC1h 15m
2026-04-14 SAS71K - Apr 14, 07:10 UTCApr 14, 08:30 UTC1h 20m
2026-04-14 SAS71K - Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-13 SAS45T - Apr 13, 21:10 UTCApr 13, 22:25 UTC1h 15m
2026-04-13 SAS89B - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 SAS89B - Apr 13, 18:50 UTCApr 13, 20:10 UTC1h 20m
2026-04-13 SAS609 - Apr 13, 16:25 UTCApr 13, 18:00 UTC1h 35m
2026-04-13 SAS407 ARN → CPH Apr 13, 14:15 UTCApr 13, 15:20 UTC1h 5m
2026-04-13 SAS144 - Apr 13, 09:05 UTCApr 13, 09:45 UTC40m
2026-04-13 SAS143 ARN → GOT Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 SAS143 ARN → GOT Apr 13, 07:25 UTCApr 13, 08:05 UTC40m
2026-04-13 SAS150 - Apr 13, 05:25 UTCApr 13, 06:05 UTC40m
2026-04-12 SAS2051 - Apr 12, 19:05 UTCApr 12, 20:15 UTC1h 10m
2026-04-12 SAS2002 ARN → LLA Apr 12, 17:20 UTCApr 12, 18:15 UTC55m

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

Mode-S 4CAD94 frequently asked

What is Mode-S code 4CAD94?
4CAD94 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SCD.
Where is Mode-S 4CAD94 registered?
Mode-S code 4CAD94 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD94 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD94, octal 23126624, decimal 5,025,172.
What flights does 4CAD94 operate?
Mode-S 4CAD94 has broadcast 11 distinct callsigns, including SAS89B, SAS71K, SAS143, SAS609, SAS45T.