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sensors Mode-S transponder

4CAFCD

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAFCD
Octal
23127715
Decimal
5,025,741
Country
IE
Tail
EI-SIH
Type
A20N
No current signal · last broadcast 7h ago
Flights observed
456
Distinct callsigns
20
Country
IE
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4CAFCD.

Country allocation

The ICAO 24-bit address 4CAFCD 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
SAS821 - 15 2026-06-30
SAS806 Scandinavian Airlines System 15 2026-06-30
SAS52C Scandinavian Airlines System 15 2026-06-30
SAS822 - 14 2026-06-30
SAS802 - 11 2026-06-29
SAS827 Scandinavian Airlines System 10 2026-06-16
SAS4608 Scandinavian Airlines System 10 2026-06-16
SAS80M Scandinavian Airlines System 9 2026-06-16
SAS72T - 9 2026-06-30
SAS62N Scandinavian Airlines System 9 2026-06-16
SAS688 - 8 2026-07-13
SAS687 - 8 2026-07-13
SAS87J - 6 2026-06-28
SAS69P - 6 2026-07-06
SAS506 - 6 2026-07-08
SAS70P - 5 2026-07-08
SAS51N - 5 2026-07-09
SAS505 Scandinavian Airlines System 5 2026-07-08
SAS500 - 5 2026-07-03
SAS33D - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SAS688 MXP → CPH Jul 13, 18:15 UTCJul 13, 19:55 UTC1h 40m
2026-07-13 SAS687 CPH → MXP Jul 13, 15:10 UTCJul 13, 16:55 UTC1h 45m
2026-07-13 SAS782 - Jul 13, 10:05 UTCJul 13, 12:35 UTC2h 30m
2026-07-13 SAS781 CPH → SKG Jul 13, 06:15 UTCJul 13, 08:45 UTC2h 30m
2026-07-12 SAS2992 RHO → CPH Jul 12, 18:25 UTCJul 12, 21:40 UTC3h 15m
2026-07-12 SAS2991 CPH → RHO Jul 12, 14:05 UTCJul 12, 17:10 UTC3h 5m
2026-07-12 SAS7720 RHO → CPH Jul 12, 09:10 UTCJul 12, 12:30 UTC3h 20m
2026-07-12 SAS7719 CPH → RHO Jul 12, 04:25 UTCJul 12, 07:35 UTC3h 10m
2026-07-11 SAS688 MXP → CPH Jul 11, 19:35 UTCJul 11, 21:20 UTC1h 45m
2026-07-11 SAS687 CPH → MXP Jul 11, 16:35 UTCJul 11, 18:20 UTC1h 45m
2026-07-11 SAS504 LHR → CPH Jul 11, 14:10 UTCJul 11, 15:35 UTC1h 25m
2026-07-11 SAS503 CPH → LHR Jul 11, 11:00 UTCJul 11, 12:30 UTC1h 30m
2026-07-11 SAS74E - Jul 11, 07:35 UTCJul 11, 09:40 UTC2h 5m
2026-07-11 SAS793 CPH → NCE Jul 11, 04:40 UTCJul 11, 06:30 UTC1h 50m
2026-07-10 SAS71G - Jul 10, 17:45 UTCJul 10, 20:30 UTC2h 45m
2026-07-10 SAS2595 CPH → KEF Jul 10, 13:45 UTCJul 10, 16:40 UTC2h 55m
2026-07-10 SAS790 - Jul 10, 10:15 UTCJul 10, 12:30 UTC2h 15m
2026-07-10 SAS789 - Jul 10, 06:40 UTCJul 10, 09:00 UTC2h 20m
2026-07-10 SAS1415 ARN → CPH Jul 10, 04:05 UTCJul 10, 04:55 UTC50m
2026-07-09 SAS534 - Jul 9, 20:40 UTCJul 9, 22:40 UTC2h 0m
2026-07-09 SAS533 ARN → LHR Jul 9, 16:35 UTCJul 9, 18:50 UTC2h 15m
2026-07-09 SAS532 LHR → ARN Jul 9, 13:30 UTCJul 9, 15:25 UTC1h 55m
2026-07-09 SAS531 ARN → LHR Jul 9, 09:25 UTCJul 9, 11:40 UTC2h 15m
2026-07-09 SAS51N LHR → ARN Jul 9, 05:55 UTCJul 9, 08:00 UTC2h 5m
2026-07-08 SAS1501 CPH → LHR Jul 8, 18:50 UTCJul 8, 20:20 UTC1h 30m
2026-07-08 SAS506 - Jul 8, 16:15 UTCJul 8, 17:45 UTC1h 30m
2026-07-08 SAS505 CPH → LHR Jul 8, 13:15 UTCJul 8, 14:40 UTC1h 25m
2026-07-08 SAS70P DUB → CPH Jul 8, 10:05 UTCJul 8, 11:50 UTC1h 45m
2026-07-08 SAS32F - Jul 8, 06:55 UTCJul 8, 08:50 UTC1h 55m
2026-07-06 SAS49K LHR → CPH Jul 6, 18:45 UTCJul 6, 20:10 UTC1h 25m
2026-07-06 SAS1507 CPH → LHR Jul 6, 15:50 UTCJul 6, 17:20 UTC1h 30m
2026-07-06 SAS1678 - Jul 6, 13:55 UTCJul 6, 14:45 UTC50m
2026-07-06 SAS1677 - Jul 6, 12:15 UTCJul 6, 12:55 UTC40m
2026-07-06 SAS33D - Jul 6, 08:15 UTCJul 6, 11:05 UTC2h 50m
2026-07-06 SAS69P - Jul 6, 04:10 UTCJul 6, 06:35 UTC2h 25m
2026-07-05 SAS2992 RHO → CPH Jul 5, 18:35 UTCJul 5, 22:10 UTC3h 35m
2026-07-05 SAS2991 - Jul 5, 13:55 UTCJul 5, 16:55 UTC3h 0m
2026-07-05 SAS7720 RHO → CPH Jul 5, 09:15 UTCJul 5, 12:45 UTC3h 30m
2026-07-05 SAS7719 BLL → FUE Jul 5, 04:50 UTCJul 5, 07:45 UTC2h 55m
2026-07-04 SAS688 MXP → CPH Jul 4, 19:20 UTCJul 4, 21:10 UTC1h 50m
2026-07-04 SAS687 - Jul 4, 16:25 UTCJul 4, 18:05 UTC1h 40m
2026-07-04 SAS504 LHR → CPH Jul 4, 14:05 UTCJul 4, 15:25 UTC1h 20m
2026-07-04 SAS503 - Jul 4, 10:55 UTCJul 4, 12:25 UTC1h 30m
2026-07-04 SAS74E - Jul 4, 07:35 UTCJul 4, 09:45 UTC2h 10m
2026-07-04 SAS793 - Jul 4, 04:20 UTCJul 4, 06:15 UTC1h 55m
2026-07-03 SAS33K - Jul 3, 19:20 UTCJul 3, 21:40 UTC2h 20m
2026-07-03 SAS49N CPH → FCO Jul 3, 15:50 UTCJul 3, 18:00 UTC2h 10m
2026-07-03 SAS88A - Jul 3, 11:55 UTCJul 3, 13:45 UTC1h 50m
2026-07-03 SAS56D - Jul 3, 08:40 UTCJul 3, 10:25 UTC1h 45m
2026-07-03 SAS500 - Jul 3, 05:50 UTCJul 3, 07:25 UTC1h 35m

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

Mode-S 4CAFCD frequently asked

What is Mode-S code 4CAFCD?
4CAFCD is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SIH.
Where is Mode-S 4CAFCD registered?
Mode-S code 4CAFCD is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAFCD broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAFCD, octal 23127715, decimal 5,025,741.
What flights does 4CAFCD operate?
Mode-S 4CAFCD has broadcast 20 distinct callsigns, including SAS821, SAS806, SAS52C, SAS822, SAS802.