sensors Mode-S transponder

4CACB5

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CACB5
Octal
23126265
Decimal
5,024,949
Country
IE
Tail
EI-SIB
Type
A20N
No current signal · last broadcast 6h ago
Flights observed
258
Distinct callsigns
20
Country
IE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4CACB5.

Country allocation

The ICAO 24-bit address 4CACB5 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SAS071 OSD → ARN May 29, 18:00 UTCMay 29, 18:45 UTC45m
2026-05-29 SAS070 ARN → OSD May 29, 16:35 UTCMay 29, 17:20 UTC45m
2026-05-29 SAS41A GOT → ARN May 29, 14:35 UTCMay 29, 15:20 UTC45m
2026-05-29 SAS161 ARN → GOT May 29, 12:45 UTCMay 29, 13:25 UTC40m
2026-05-29 SAS7924 JSH → ARN May 29, 08:35 UTCMay 29, 11:40 UTC3h 5m
2026-05-29 SAS7955 GOT → IOA May 29, 04:25 UTCMay 29, 06:50 UTC2h 25m
2026-05-28 SAS171 ARN → GOT May 28, 20:45 UTCMay 28, 21:25 UTC40m
2026-05-28 SAS528 LHR → ARN May 28, 17:35 UTCMay 28, 19:35 UTC2h 0m
2026-05-28 SAS527 ARN → LHR May 28, 13:40 UTCMay 28, 15:55 UTC2h 15m
2026-05-28 SAS94Y ATH → ARN May 28, 08:55 UTCMay 28, 12:25 UTC3h 30m
2026-05-28 SAS38H ARN → ATH May 28, 04:10 UTCMay 28, 07:20 UTC3h 10m
2026-05-27 SAS86L AGP → GOT May 27, 18:25 UTCMay 27, 20:35 UTC2h 10m
2026-05-27 SAS579 ARN → CDG May 27, 15:05 UTCMay 27, 17:15 UTC2h 10m
2026-05-27 SAS96T AGP → ARN May 27, 09:40 UTCMay 27, 13:40 UTC4h 0m
2026-05-27 SAS95T ARN → AGP May 27, 04:14 UTCMay 27, 08:25 UTC4h 11m
2026-05-26 SAS86L AGP → GOT May 26, 19:45 UTCMay 26, 21:40 UTC1h 55m
2026-05-26 SAS579 ARN → CDG May 26, 16:05 UTCMay 26, 18:30 UTC2h 25m
2026-05-26 SAS1804 AGP → ARN May 26, 09:49 UTCMay 26, 13:40 UTC3h 50m
2026-05-26 SAS245E ARN → AGP May 26, 04:15 UTCMay 26, 08:19 UTC4h 5m
2026-05-25 SAS528 LHR → ARN May 25, 17:30 UTCMay 25, 19:25 UTC1h 54m
2026-05-25 SAS527 ARN → LHR May 25, 13:40 UTCMay 25, 15:55 UTC2h 15m
2026-05-25 SAS61A CPH → ARN May 25, 11:30 UTCMay 25, 12:30 UTC1h 0m
2026-05-25 SAS1421 ARN → CPH May 25, 09:10 UTCMay 25, 10:05 UTC55m
2026-05-25 SAS58E CPH → ARN May 25, 07:10 UTCMay 25, 08:00 UTC50m
2026-05-25 SAS54C ARN → CPH May 25, 05:10 UTCMay 25, 06:05 UTC55m
2026-05-24 SAS96T AGP → ARN May 24, 18:45 UTCMay 24, 21:50 UTC3h 5m
2026-05-24 SAS95T ARN → AGP May 24, 13:25 UTCMay 24, 17:25 UTC4h 0m
2026-05-24 SAS61A CPH → ARN May 24, 11:20 UTCMay 24, 12:10 UTC50m
2026-05-24 SAS1421 ARN → CPH May 24, 09:15 UTCMay 24, 10:10 UTC55m
2026-05-24 SAS51N LHR → ARN May 24, 06:10 UTCMay 24, 08:00 UTC1h 50m
2026-05-23 SAS87J ARN → LHR May 23, 15:20 UTCMay 23, 17:35 UTC2h 15m
2026-05-23 SAS1804 AGP → ARN May 23, 10:30 UTCMay 23, 14:15 UTC3h 45m
2026-05-23 SAS245E ARN → AGP May 23, 04:35 UTCMay 23, 08:35 UTC4h 0m
2026-05-22 SAS534 LHR → ARN May 22, 20:20 UTCMay 22, 22:15 UTC1h 55m
2026-05-22 SAS533 ARN → LHR May 22, 16:50 UTCMay 22, 19:10 UTC2h 20m
2026-05-22 SAS532 LHR → ARN May 22, 13:35 UTCMay 22, 15:40 UTC2h 5m
2026-05-22 SAS531 ARN → LHR May 22, 09:20 UTCMay 22, 11:35 UTC2h 15m
2026-05-22 SAS51N LHR → ARN May 22, 05:50 UTCMay 22, 07:50 UTC2h 0m
2026-05-21 SAS87J ARN → LHR May 21, 18:00 UTCMay 21, 20:10 UTC2h 10m
2026-05-21 SAS80D NCE → ARN May 21, 13:55 UTCMay 21, 16:45 UTC2h 50m
2026-05-21 SAS67W ARN → NCE May 21, 10:00 UTCMay 21, 12:35 UTC2h 35m
2026-05-21 SAS58E CPH → ARN May 21, 07:10 UTCMay 21, 08:05 UTC55m
2026-05-21 SAS54C ARN → CPH May 21, 05:05 UTCMay 21, 06:00 UTC55m
2026-05-20 SAS2031 UME → ARN May 20, 17:55 UTCMay 20, 18:35 UTC40m
2026-05-20 SAS2030 ARN → UME May 20, 16:25 UTCMay 20, 17:00 UTC35m
2026-05-20 SAS65Y AGH → ARN May 20, 14:10 UTCMay 20, 15:00 UTC50m
2026-05-20 SAS185 ARN → AGH May 20, 12:40 UTCMay 20, 13:25 UTC45m
2026-05-20 SAS2678 BER → ARN May 20, 09:35 UTCMay 20, 10:55 UTC1h 20m
2026-05-20 SAS2677 ARN → BER May 20, 07:20 UTCMay 20, 08:40 UTC1h 20m
2026-05-20 SAS32J GOT → ARN May 20, 04:35 UTCMay 20, 05:20 UTC46m

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

Mode-S 4CACB5 frequently asked

What is Mode-S code 4CACB5?
4CACB5 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SIB.
Where is Mode-S 4CACB5 registered?
Mode-S code 4CACB5 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CACB5 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CACB5, octal 23126265, decimal 5,024,949.
What flights does 4CACB5 operate?
Mode-S 4CACB5 has broadcast 20 distinct callsigns, including SAS806, SAS52C, SAS821, SAS822, SAS72T.