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sensors Mode-S transponder

4CAC7B

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAC7B
Octal
23126173
Decimal
5,024,891
Country
IE
Tail
EI-SIL
Type
A20N
Broadcasting now · callsign SAS792 · 2,250 ft
Flights observed
590
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 22:05 UTC

Current position

4CAC7B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAC7B 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
SAS448 Scandinavian Airlines System 9 2026-07-26
SAS87T Scandinavian Airlines System 8 2026-07-22
SAS596 Scandinavian Airlines System 8 2026-07-26
SAS595 Scandinavian Airlines System 8 2026-07-26
SAS91Y Scandinavian Airlines System 7 2026-06-12
SAS89T - 7 2026-06-19
SAS77G Scandinavian Airlines System 7 2026-06-12
SAS601 - 7 2026-06-19
SAS78C Scandinavian Airlines System 6 2026-07-26
SAS72G Scandinavian Airlines System 6 2026-07-26
SAS688 Scandinavian Airlines System 6 2026-07-25
SAS49K Scandinavian Airlines System 6 2026-07-12
SAS2762 Scandinavian Airlines System 6 2026-06-19
SAS2761 Scandinavian Airlines System 6 2026-06-19
SAS793 Scandinavian Airlines System 5 2026-07-25
SAS74E Scandinavian Airlines System 5 2026-07-25
SAS687 Scandinavian Airlines System 5 2026-07-25
SAS63Y - 5 2026-06-30
SAS588 - 5 2026-06-30
SAS1707 Scandinavian Airlines System 5 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS448 CPH → GOT Jul 26, 21:35 UTCJul 26, 22:05 UTC30m
2026-07-26 SAS78C LHR → CPH Jul 26, 18:05 UTCJul 26, 19:35 UTC1h 30m
2026-07-26 SAS72G CPH → LHR Jul 26, 15:00 UTCJul 26, 16:35 UTC1h 35m
2026-07-26 SAS596 KEF → CPH Jul 26, 10:50 UTCJul 26, 13:25 UTC2h 35m
2026-07-26 SAS595 CPH → KEF Jul 26, 06:35 UTCJul 26, 09:25 UTC2h 50m
2026-07-25 RYR18ZU PMI → BOH Jul 25, 23:35 UTCJul 25, 23:45 UTC10m
2026-07-25 SAS688 MXP → CPH Jul 25, 19:40 UTCJul 25, 21:25 UTC1h 45m
2026-07-25 SAS687 CPH → MXP Jul 25, 16:10 UTCJul 25, 17:55 UTC1h 45m
2026-07-25 SAS504 LHR → CPH Jul 25, 13:40 UTCJul 25, 15:10 UTC1h 30m
2026-07-25 SAS503 CPH → LHR Jul 25, 10:50 UTCJul 25, 12:20 UTC1h 30m
2026-07-25 SAS74E NCE → CPH Jul 25, 07:30 UTCJul 25, 09:40 UTC2h 10m
2026-07-25 SAS793 CPH → NCE Jul 25, 04:15 UTCJul 25, 06:20 UTC2h 5m
2026-07-24 SAS2796 NCE → CPH Jul 24, 12:20 UTCJul 24, 14:35 UTC2h 15m
2026-07-24 SAS2795 CPH → NCE Jul 24, 09:10 UTCJul 24, 11:05 UTC1h 55m
2026-07-24 SAS455 OSL → CPH Jul 24, 07:15 UTCJul 24, 08:05 UTC50m
2026-07-24 SAS454 CPH → OSL Jul 24, 05:05 UTCJul 24, 06:00 UTC55m
2026-07-23 SAS2778 ATH → CPH Jul 23, 19:05 UTCJul 23, 22:05 UTC3h 0m
2026-07-23 SAS2777 ATH → CPH Jul 23, 15:15 UTCJul 23, 18:00 UTC2h 45m
2026-07-23 SAS55H - Jul 23, 10:25 UTCJul 23, 13:30 UTC3h 5m
2026-07-23 RYR62AD WRO → EMA Jul 23, 09:45 UTCJul 23, 10:15 UTC30m
2026-07-23 SAS68R CPH → ATH Jul 23, 06:20 UTCJul 23, 09:15 UTC2h 55m
2026-07-22 RYR3EB STN → GOT Jul 22, 23:35 UTCJul 22, 23:45 UTC10m
2026-07-22 SAS2814 ALC → CPH Jul 22, 17:50 UTCJul 22, 20:50 UTC3h 0m
2026-07-22 SAS2813 CPH → ALC Jul 22, 13:35 UTCJul 22, 16:35 UTC3h 0m
2026-07-22 SAS87T GOT → CPH Jul 22, 04:15 UTCJul 22, 04:40 UTC25m
2026-07-21 SAS448 - Jul 21, 21:15 UTCJul 21, 21:40 UTC25m
2026-07-21 SAS688 MXP → CPH Jul 21, 18:10 UTCJul 21, 19:55 UTC1h 45m
2026-07-21 SAS688 MXP → CPH Jul 21, 17:45 UTCJul 21, 17:55 UTC10m
2026-07-21 SAS687 CPH → MXP Jul 21, 15:20 UTCJul 21, 16:55 UTC1h 35m
2026-07-21 SAS431 - Jul 21, 13:40 UTCJul 21, 14:10 UTC30m
2026-07-21 SAS430 - Jul 21, 12:20 UTCJul 21, 12:50 UTC30m
2026-07-21 SAS41C - Jul 21, 09:40 UTCJul 21, 11:05 UTC1h 25m
2026-07-21 SAS84F CPH → LHR Jul 21, 06:30 UTCJul 21, 08:05 UTC1h 35m
2026-07-21 SAS87T - Jul 21, 04:05 UTCJul 21, 04:35 UTC30m
2026-07-21 RYR4BZ WMI → DUB Jul 21, 02:25 UTCJul 21, 02:40 UTC15m
2026-07-20 SAS1816 - Jul 20, 19:55 UTCJul 20, 22:50 UTC2h 55m
2026-07-20 SAS1815 - Jul 20, 15:00 UTCJul 20, 18:05 UTC3h 5m
2026-07-20 SAS57Y - Jul 20, 10:20 UTCJul 20, 12:35 UTC2h 15m
2026-07-20 SAS41R - Jul 20, 06:35 UTCJul 20, 08:55 UTC2h 20m
2026-07-19 SAS448 - Jul 19, 21:35 UTCJul 19, 22:00 UTC25m
2026-07-19 SAS1698 CTA → CPH Jul 19, 16:50 UTCJul 19, 19:30 UTC2h 40m
2026-07-19 SAS1697 CPH → CTA Jul 19, 12:55 UTCJul 19, 16:05 UTC3h 10m
2026-07-19 SAS41C LHR → CPH Jul 19, 09:40 UTCJul 19, 11:10 UTC1h 30m
2026-07-19 SAS84F CPH → LHR Jul 19, 06:20 UTCJul 19, 07:55 UTC1h 35m
2026-07-18 SAS2774 OPO → CPH Jul 18, 20:00 UTCJul 18, 22:40 UTC2h 40m
2026-07-18 SAS2773 CPH → OPO Jul 18, 15:45 UTCJul 18, 18:55 UTC3h 10m
2026-07-18 SAS431 - Jul 18, 13:50 UTCJul 18, 14:25 UTC35m
2026-07-18 SAS430 - Jul 18, 12:20 UTCJul 18, 12:45 UTC25m
2026-07-18 SAS45F - Jul 18, 09:40 UTCJul 18, 11:05 UTC1h 25m
2026-07-18 SAS21D CPH → CDG Jul 18, 06:35 UTCJul 18, 08:10 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-SIL page for operator, model, and routing details .

Mode-S 4CAC7B frequently asked

What is Mode-S code 4CAC7B?
4CAC7B is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SIL.
Where is Mode-S 4CAC7B registered?
Mode-S code 4CAC7B is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAC7B broadcasting right now?
Yes. Mode-S 4CAC7B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAC7B, octal 23126173, decimal 5,024,891.
What flights does 4CAC7B operate?
Mode-S 4CAC7B has broadcast 20 distinct callsigns, including SAS448, SAS87T, SAS596, SAS595, SAS91Y.