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sensors Mode-S transponder

4CADDB

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CADDB
Octal
23126733
Decimal
5,025,243
Country
IE
Tail
EI-SIZ
Type
A20N
Broadcasting now · callsign SAS779 · 21,350 ft
Flights observed
475
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:40 UTC

Current position

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

Country allocation

The ICAO 24-bit address 4CADDB 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
SAS88P Scandinavian Airlines System 8 2026-06-11
SAS581 Scandinavian Airlines System 8 2026-06-11
SAS92U Scandinavian Airlines System 7 2026-06-11
SAS71K Scandinavian Airlines System 7 2026-06-12
SAS2778 Scandinavian Airlines System 7 2026-06-12
SAS2777 Scandinavian Airlines System 7 2026-06-12
SAS23A - 7 2026-06-12
SAS85A Scandinavian Airlines System 6 2026-06-11
SAS49N Scandinavian Airlines System 6 2026-06-15
SAS793 - 5 2026-06-18
SAS74E Scandinavian Airlines System 5 2026-06-18
SAS73C Scandinavian Airlines System 5 2026-06-05
SAS68R Scandinavian Airlines System 5 2026-07-26
SAS560 Scandinavian Airlines System 5 2026-06-05
SAS55H Scandinavian Airlines System 5 2026-07-26
SAS542 Scandinavian Airlines System 5 2026-06-16
SAS1713 Scandinavian Airlines System 5 2026-06-19
SAS1712 - 5 2026-06-19
SAS96C - 4 2026-06-25
SAS91Y Scandinavian Airlines System 4 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS65K PMO → CPH Jul 26, 18:05 UTCJul 26, 20:40 UTC2h 35m
2026-07-26 SAS2695 CPH → PMO Jul 26, 14:25 UTCJul 26, 17:00 UTC2h 35m
2026-07-26 SAS55H ATH → CPH Jul 26, 09:30 UTCJul 26, 12:35 UTC3h 5m
2026-07-26 SAS68R CPH → ATH Jul 26, 05:25 UTCJul 26, 08:05 UTC2h 41m
2026-07-25 SAS7776 CHQ → CPH Jul 25, 20:35 UTCJul 25, 23:05 UTC2h 30m
2026-07-25 SAS7775 CPH → CHQ Jul 25, 15:40 UTCJul 25, 17:50 UTC2h 10m
2026-07-25 SAS7792 RHO → BLL Jul 25, 10:35 UTCJul 25, 13:50 UTC3h 15m
2026-07-25 SAS7791 CPH → CHQ Jul 25, 06:00 UTCJul 25, 08:45 UTC2h 45m
2026-07-24 SAS37L ARN → CDG Jul 24, 18:50 UTCJul 24, 22:15 UTC3h 25m
2026-07-24 SAS2817 CPH → CHQ Jul 24, 14:30 UTCJul 24, 17:10 UTC2h 40m
2026-07-24 SAS584 AGP → CPH Jul 24, 09:15 UTCJul 24, 12:25 UTC3h 10m
2026-07-24 SAS583 CPH → AGP Jul 24, 04:15 UTCJul 24, 07:40 UTC3h 25m
2026-07-23 SAS10E - Jul 23, 18:05 UTCJul 23, 19:45 UTC1h 40m
2026-07-23 SAS31T CPH → VCE Jul 23, 14:55 UTCJul 23, 16:25 UTC1h 30m
2026-07-23 SAS2512 NCE → CPH Jul 23, 10:30 UTCJul 23, 12:30 UTC2h 0m
2026-07-23 SAS2511 CPH → NCE Jul 23, 07:10 UTCJul 23, 09:05 UTC1h 55m
2026-07-23 SAS87T GOT → CPH Jul 23, 04:10 UTCJul 23, 04:35 UTC25m
2026-07-22 SAS36E - Jul 22, 19:05 UTCJul 22, 22:35 UTC3h 30m
2026-07-22 SAS45M - Jul 22, 14:25 UTCJul 22, 17:50 UTC3h 25m
2026-07-22 SAS68G - Jul 22, 12:40 UTCJul 22, 13:20 UTC40m
2026-07-22 SAS51D - Jul 22, 10:20 UTCJul 22, 11:30 UTC1h 10m
2026-07-21 SAS528 - Jul 21, 17:20 UTCJul 21, 19:20 UTC2h 0m
2026-07-21 SAS527 ARN → LHR Jul 21, 13:35 UTCJul 21, 15:50 UTC2h 15m
2026-07-21 SAS2542 EDI → ARN Jul 21, 08:15 UTCJul 21, 10:15 UTC2h 0m
2026-07-21 SAS2541 ARN → EDI Jul 21, 05:00 UTCJul 21, 07:00 UTC2h 0m
2026-07-20 SAS96T - Jul 20, 19:10 UTCJul 20, 22:55 UTC3h 45m
2026-07-20 SAS45M - Jul 20, 14:25 UTCJul 20, 17:55 UTC3h 30m
2026-07-20 SAS36E - Jul 20, 09:40 UTCJul 20, 12:55 UTC3h 15m
2026-07-20 SAS95T ARN → AGP Jul 20, 04:15 UTCJul 20, 08:15 UTC4h 0m
2026-07-19 SAS1812 BCN → ARN Jul 19, 17:50 UTCJul 19, 20:50 UTC3h 0m
2026-07-19 SAS1811 ARN → BCN Jul 19, 13:10 UTCJul 19, 16:20 UTC3h 10m
2026-07-19 SAS2936 NCE → ARN Jul 19, 09:40 UTCJul 19, 12:05 UTC2h 25m
2026-07-19 SAS2935 ARN → NCE Jul 19, 05:25 UTCJul 19, 08:15 UTC2h 50m
2026-07-18 SAS1410 CPH → ARN Jul 18, 19:25 UTCJul 18, 20:15 UTC50m
2026-07-18 SAS39C ARN → CPH Jul 18, 17:15 UTCJul 18, 18:10 UTC55m
2026-07-18 SAS1408 CPH → ARN Jul 18, 15:20 UTCJul 18, 16:10 UTC50m
2026-07-18 SAS1407 ARN → CPH Jul 18, 13:30 UTCJul 18, 14:30 UTC1h 0m
2026-07-18 SAS88K - Jul 18, 09:30 UTCJul 18, 11:25 UTC1h 55m
2026-07-18 SAS85Y ARN → CDG Jul 18, 05:30 UTCJul 18, 07:50 UTC2h 20m
2026-07-17 SAS1810 - Jul 17, 20:35 UTCJul 17, 23:39 UTC3h 5m
2026-07-17 SAS236L - Jul 17, 16:00 UTCJul 17, 19:25 UTC3h 25m
2026-07-17 SAS41W - Jul 17, 11:30 UTCJul 17, 14:39 UTC3h 10m
2026-07-17 SAS72U - Jul 17, 06:40 UTCJul 17, 10:05 UTC3h 25m
2026-07-16 SAS1574 ALC → ARN Jul 16, 18:55 UTCJul 16, 22:35 UTC3h 40m
2026-07-16 SAS45G - Jul 16, 14:25 UTCJul 16, 17:45 UTC3h 20m
2026-07-16 SAS1836 SPU → GOT Jul 16, 08:35 UTCJul 16, 10:35 UTC2h 0m
2026-07-16 SAS1835 - Jul 16, 05:00 UTCJul 16, 07:00 UTC2h 0m
2026-07-15 SAS36E - Jul 15, 19:30 UTCJul 15, 22:45 UTC3h 15m
2026-07-15 SAS45M - Jul 15, 14:40 UTCJul 15, 18:15 UTC3h 35m
2026-07-15 SAS1836 SPU → GOT Jul 15, 09:45 UTCJul 15, 11:50 UTC2h 5m

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

Mode-S 4CADDB frequently asked

What is Mode-S code 4CADDB?
4CADDB is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-SIZ.
Where is Mode-S 4CADDB registered?
Mode-S code 4CADDB is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADDB broadcasting right now?
Yes. Mode-S 4CADDB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADDB, octal 23126733, decimal 5,025,243.
What flights does 4CADDB operate?
Mode-S 4CADDB has broadcast 20 distinct callsigns, including SAS88P, SAS581, SAS92U, SAS71K, SAS2778.