Apparatus

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sensors Mode-S transponder

4CACB4

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CACB4
Octal
23126264
Decimal
5,024,948
Country
IE
Tail
EI-SIA
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
264
Distinct callsigns
20
Country
IE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4CACB4.

Country allocation

The ICAO 24-bit address 4CACB4 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 20 distinct

Callsign Airline Flights Last seen
SAS87T Scandinavian Airlines System 6 2026-05-28
SAS84F Scandinavian Airlines System 5 2026-05-28
SAS78C Scandinavian Airlines System 5 2026-05-29
SAS72G Scandinavian Airlines System 5 2026-05-29
SAS506 Scandinavian Airlines System 5 2026-05-28
SAS505 Scandinavian Airlines System 5 2026-05-28
SAS41C Scandinavian Airlines System 5 2026-05-28
SAS1501 Scandinavian Airlines System 5 2026-05-28
SAS753 Scandinavian Airlines System 4 2026-05-29
SAS70P Scandinavian Airlines System 4 2026-05-29
SAS64U - 4 2026-04-23
SAS500 Scandinavian Airlines System 4 2026-05-29
SAS448 Scandinavian Airlines System 4 2026-05-27
SAS32F Scandinavian Airlines System 4 2026-05-29
SAS1809 Scandinavian Airlines System 4 2026-04-13
SAS96T Scandinavian Airlines System 3 2026-04-16
SAS89T Scandinavian Airlines System 3 2026-05-24
SAS601 Scandinavian Airlines System 3 2026-05-24
SAS1810 - 3 2026-04-13
SAS987P Scandinavian Airlines System 2 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SAS753 CPH → GDN May 29, 21:30 UTCMay 29, 22:30 UTC1h 0m
2026-05-29 SAS78C LHR → CPH May 29, 18:00 UTCMay 29, 19:30 UTC1h 30m
2026-05-29 SAS72G CPH → LHR May 29, 15:10 UTCMay 29, 16:45 UTC1h 36m
2026-05-29 SAS70P DUB → CPH May 29, 11:50 UTCMay 29, 13:30 UTC1h 40m
2026-05-29 SAS32F CPH → DUB May 29, 08:40 UTCMay 29, 10:45 UTC2h 5m
2026-05-29 SAS500 LHR → CPH May 29, 05:55 UTCMay 29, 07:25 UTC1h 30m
2026-05-28 SAS1501 CPH → LHR May 28, 19:00 UTCMay 28, 20:30 UTC1h 30m
2026-05-28 SAS506 LHR → CPH May 28, 16:40 UTCMay 28, 18:00 UTC1h 20m
2026-05-28 SAS505 CPH → LHR May 28, 13:20 UTCMay 28, 15:05 UTC1h 45m
2026-05-28 SAS41C LHR → CPH May 28, 10:30 UTCMay 28, 11:55 UTC1h 25m
2026-05-28 SAS84F CPH → LHR May 28, 07:40 UTCMay 28, 09:15 UTC1h 35m
2026-05-28 SAS87T GOT → CPH May 28, 04:00 UTCMay 28, 04:25 UTC25m
2026-05-27 SAS448 CPH → GOT May 27, 21:35 UTCMay 27, 22:05 UTC30m
2026-05-27 SAS560 CDG → CPH May 27, 19:10 UTCMay 27, 20:35 UTC1h 25m
2026-05-27 SAS73C CPH → CDG May 27, 15:50 UTCMay 27, 17:25 UTC1h 35m
2026-05-27 SAS55H ATH → CPH May 27, 11:20 UTCMay 27, 14:30 UTC3h 10m
2026-05-27 SAS68R CPH → ATH May 27, 07:15 UTCMay 27, 10:00 UTC2h 45m
2026-05-26 SAS78C LHR → CPH May 26, 17:55 UTCMay 26, 19:10 UTC1h 15m
2026-05-26 SAS72G CPH → LHR May 26, 14:50 UTCMay 26, 16:30 UTC1h 40m
2026-05-26 SAS70P DUB → CPH May 26, 12:05 UTCMay 26, 13:50 UTC1h 45m
2026-05-26 SAS32F CPH → DUB May 26, 08:34 UTCMay 26, 10:44 UTC2h 10m
2026-05-26 SAS500 LHR → CPH May 26, 05:54 UTCMay 26, 07:19 UTC1h 25m
2026-05-25 SAS1501 CPH → LHR May 25, 18:55 UTCMay 25, 20:24 UTC1h 30m
2026-05-25 SAS506 LHR → CPH May 25, 16:25 UTCMay 25, 17:50 UTC1h 25m
2026-05-25 SAS505 CPH → LHR May 25, 13:15 UTCMay 25, 14:55 UTC1h 40m
2026-05-25 SAS41C LHR → CPH May 25, 09:50 UTCMay 25, 11:15 UTC1h 25m
2026-05-25 SAS84F CPH → LHR May 25, 06:20 UTCMay 25, 08:05 UTC1h 45m
2026-05-25 SAS87T GOT → CPH May 25, 04:05 UTCMay 25, 04:35 UTC30m
2026-05-24 SAS448 CPH → GOT May 24, 21:30 UTCMay 24, 21:45 UTC15m
2026-05-24 SAS78C LHR → CPH May 24, 18:05 UTCMay 24, 19:30 UTC1h 25m
2026-05-24 SAS72G CPH → LHR May 24, 14:55 UTCMay 24, 16:25 UTC1h 30m
2026-05-24 SAS1678 BER → CPH May 24, 13:20 UTCMay 24, 13:55 UTC35m
2026-05-24 SAS1677 CPH → BER May 24, 11:45 UTCMay 24, 12:20 UTC35m
2026-05-24 SAS89T ZRH → CPH May 24, 09:05 UTCMay 24, 10:35 UTC1h 30m
2026-05-24 SAS601 CPH → ZRH May 24, 06:40 UTCMay 24, 08:00 UTC1h 20m
2026-05-23 SAS2778 CPH → ATH May 23, 18:15 UTCMay 23, 21:25 UTC3h 10m
2026-05-23 SAS2777 ATH → CPH May 23, 14:10 UTCMay 23, 16:55 UTC2h 45m
2026-05-23 SAS2832 SPU → CPH May 23, 10:35 UTCMay 23, 12:30 UTC1h 55m
2026-05-23 SAS2831 CPH → SPU May 23, 07:05 UTCMay 23, 08:45 UTC1h 40m
2026-05-22 SAS88P DUB → CPH May 22, 18:35 UTCMay 22, 20:20 UTC1h 45m
2026-05-22 SAS85A CPH → DUB May 22, 15:20 UTCMay 22, 17:15 UTC1h 55m
2026-05-22 SAS92U MAD → CPH May 22, 11:20 UTCMay 22, 14:00 UTC2h 41m
2026-05-22 SAS581 CPH → MAD May 22, 06:50 UTCMay 22, 09:45 UTC2h 55m
2026-05-21 SAS67L BGO → CPH May 21, 18:10 UTCMay 21, 19:05 UTC55m
2026-05-21 SAS2872 CPH → BGO May 21, 16:20 UTCMay 21, 17:25 UTC1h 5m
2026-05-21 SAS1713 HEL → CPH May 21, 13:55 UTCMay 21, 15:15 UTC1h 20m
2026-05-21 SAS1712 CPH → HEL May 21, 11:35 UTCMay 21, 12:50 UTC1h 15m
2026-05-21 SAS89T ZRH → CPH May 21, 08:35 UTCMay 21, 10:15 UTC1h 40m
2026-05-21 SAS601 CPH → ZRH May 21, 06:05 UTCMay 21, 07:20 UTC1h 15m
2026-05-21 SAS87T GOT → CPH May 21, 04:00 UTCMay 21, 04:30 UTC30m

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

Mode-S 4CACB4 frequently asked

What is Mode-S code 4CACB4?
4CACB4 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SIA.
Where is Mode-S 4CACB4 registered?
Mode-S code 4CACB4 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CACB4 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CACB4, octal 23126264, decimal 5,024,948.
What flights does 4CACB4 operate?
Mode-S 4CACB4 has broadcast 20 distinct callsigns, including SAS87T, SAS84F, SAS78C, SAS72G, SAS506.