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
Broadcasting now · callsign SAS94B · 35,975 ft
Flights observed
514
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:15 UTC

Current position

4CAFCD is currently broadcasting. Map zoomed to live position.

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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS4638 ATH → OSL Jul 26, 18:15 UTCJul 26, 21:15 UTC3h 0m
2026-07-26 SAS4637 OSL → ATH Jul 26, 13:30 UTCJul 26, 16:55 UTC3h 25m
2026-07-26 SAS804 LHR → OSL Jul 26, 09:45 UTCJul 26, 11:30 UTC1h 45m
2026-07-26 SAS53D OSL → LHR Jul 26, 06:10 UTCJul 26, 08:05 UTC1h 56m
2026-07-25 SAS806 LHR → OSL Jul 25, 14:45 UTCJul 25, 16:30 UTC1h 45m
2026-07-25 SAS52C OSL → LHR Jul 25, 11:25 UTCJul 25, 13:15 UTC1h 50m
2026-07-25 SAS4842 ZRH → OSL Jul 25, 08:20 UTCJul 25, 10:20 UTC2h 0m
2026-07-25 SAS4841 OSL → ZRH Jul 25, 05:05 UTCJul 25, 07:15 UTC2h 10m
2026-07-24 SAS812 LHR → OSL Jul 24, 19:10 UTCJul 24, 20:55 UTC1h 45m
2026-07-24 SAS811 OSL → LHR Jul 24, 15:35 UTCJul 24, 17:20 UTC1h 45m
2026-07-24 SAS4610 MAN → OSL Jul 24, 12:05 UTCJul 24, 13:45 UTC1h 40m
2026-07-24 SAS4607 OSL → MAN Jul 24, 09:10 UTCJul 24, 10:50 UTC1h 40m
2026-07-24 SAS802 LHR → OSL Jul 24, 06:20 UTCJul 24, 08:05 UTC1h 45m
2026-07-23 SAS1501 CPH → LHR Jul 23, 18:45 UTCJul 23, 20:10 UTC1h 25m
2026-07-23 SAS506 - Jul 23, 16:20 UTCJul 23, 17:50 UTC1h 30m
2026-07-23 SAS505 CPH → LHR Jul 23, 13:10 UTCJul 23, 14:35 UTC1h 25m
2026-07-23 SAS70P DUB → CPH Jul 23, 10:10 UTCJul 23, 12:05 UTC1h 55m
2026-07-23 SAS32F CPH → DUB Jul 23, 07:00 UTCJul 23, 08:40 UTC1h 40m
2026-07-22 SAS2778 ATH → CPH Jul 22, 19:05 UTCJul 22, 22:05 UTC3h 0m
2026-07-22 SAS2777 ATH → CPH Jul 22, 14:40 UTCJul 22, 17:30 UTC2h 50m
2026-07-22 SAS88A BLQ → CPH Jul 22, 11:40 UTCJul 22, 13:25 UTC1h 45m
2026-07-21 SAS72T OSL → LHR Jul 21, 18:25 UTCJul 21, 20:10 UTC1h 45m
2026-07-21 SAS806 LHR → OSL Jul 21, 15:00 UTCJul 21, 16:50 UTC1h 50m
2026-07-21 SAS52C OSL → LHR Jul 21, 11:55 UTCJul 21, 13:40 UTC1h 45m
2026-07-21 SAS822 AMS → OSL Jul 21, 09:15 UTCJul 21, 10:45 UTC1h 30m
2026-07-21 SAS821 OSL → AMS Jul 21, 06:10 UTCJul 21, 07:35 UTC1h 25m
2026-07-20 SAS812 LHR → OSL Jul 20, 19:10 UTCJul 20, 21:10 UTC2h 0m
2026-07-20 SAS811 OSL → LHR Jul 20, 15:40 UTCJul 20, 17:25 UTC1h 45m
2026-07-20 SAS4610 MAN → OSL Jul 20, 12:15 UTCJul 20, 14:00 UTC1h 45m
2026-07-20 SAS4607 - Jul 20, 09:20 UTCJul 20, 10:50 UTC1h 30m
2026-07-20 SAS802 LHR → OSL Jul 20, 06:20 UTCJul 20, 08:05 UTC1h 45m
2026-07-19 SAS1501 CPH → LHR Jul 19, 18:45 UTCJul 19, 20:20 UTC1h 35m
2026-07-19 SAS506 - Jul 19, 16:20 UTCJul 19, 17:50 UTC1h 30m
2026-07-19 SAS505 CPH → LHR Jul 19, 13:10 UTCJul 19, 15:00 UTC1h 50m
2026-07-19 SAS7742 MJT → CPH Jul 19, 08:05 UTCJul 19, 10:55 UTC2h 50m
2026-07-19 SAS57D CPH → MJT Jul 19, 04:10 UTCJul 19, 07:00 UTC2h 50m
2026-07-18 SAS688 MXP → CPH Jul 18, 19:45 UTCJul 18, 21:35 UTC1h 50m
2026-07-18 SAS687 CPH → MXP Jul 18, 16:25 UTCJul 18, 18:05 UTC1h 40m
2026-07-18 SAS504 LHR → CPH Jul 18, 14:00 UTCJul 18, 15:30 UTC1h 30m
2026-07-18 SAS503 CPH → LHR Jul 18, 11:00 UTCJul 18, 12:35 UTC1h 35m
2026-07-18 SAS74E NCE → CPH Jul 18, 07:40 UTCJul 18, 09:40 UTC2h 0m
2026-07-18 SAS793 CPH → NCE Jul 18, 04:15 UTCJul 18, 06:30 UTC2h 15m
2026-07-17 SAS33K - Jul 17, 19:05 UTCJul 17, 21:20 UTC2h 15m
2026-07-17 SAS49N - Jul 17, 15:35 UTCJul 17, 17:40 UTC2h 5m
2026-07-17 SAS88A - Jul 17, 12:10 UTCJul 17, 13:45 UTC1h 35m
2026-07-17 SAS56D CPH → BLQ Jul 17, 08:40 UTCJul 17, 10:40 UTC2h 0m
2026-07-16 SAS782 SKG → CPH Jul 16, 17:05 UTCJul 16, 19:40 UTC2h 35m
2026-07-16 SAS781 CPH → SKG Jul 16, 13:25 UTCJul 16, 15:49 UTC2h 25m
2026-07-16 SAS2286 - Jul 16, 08:30 UTCJul 16, 11:25 UTC2h 55m
2026-07-16 SAS2285 - Jul 16, 04:05 UTCJul 16, 06:50 UTC2h 45m

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?
Yes. Mode-S 4CAFCD is currently airborne.
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 SAS806, SAS52C, SAS821, SAS822, SAS802.