sensors Mode-S transponder

4CABDA

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HIA · BOMBARDIER Regional Jet CRJ-1000

Hex
4CABDA
Octal
23125732
Decimal
5,024,730
Country
IE
Tail
EI-HIA
Type
CRJX
No current signal · last broadcast 14h ago
Flights observed
15
Distinct callsigns
10
Country
IE
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 4CABDA.

Country allocation

The ICAO 24-bit address 4CABDA 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 10 distinct

Callsign Airline Flights Last seen
SAS613 Scandinavian Airlines System 4 2026-04-14
SAS22P - 2 2026-04-14
SAS1522 - 2 2026-04-13
SAS57R - 1 2026-04-12
SAS2657 - 1 2026-04-12
SAS1521 - 1 2026-04-13
SAS1273 - 1 2026-04-13
SAS1258 - 1 2026-04-13
SAS1257 - 1 2026-04-13
SAS1240 - 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 SAS22P - Apr 14, 09:10 UTCApr 14, 10:45 UTC1h 35m
2026-04-14 SAS613 CPH → GVA Apr 14, 07:10 UTCApr 14, 08:20 UTC1h 10m
2026-04-14 SAS613 CPH → GVA Apr 14, 06:30 UTCApr 14, 07:10 UTC40m
2026-04-13 SAS1273 - Apr 13, 21:30 UTCApr 13, 21:55 UTC25m
2026-04-13 SAS1522 - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 SAS1522 - Apr 13, 18:30 UTCApr 13, 19:55 UTC1h 25m
2026-04-13 SAS1521 - Apr 13, 16:25 UTCApr 13, 17:50 UTC1h 25m
2026-04-13 SAS1258 - Apr 13, 13:35 UTCApr 13, 14:00 UTC25m
2026-04-13 SAS1257 - Apr 13, 12:25 UTCApr 13, 12:45 UTC20m
2026-04-13 SAS22P - Apr 13, 09:15 UTCApr 13, 10:45 UTC1h 30m
2026-04-13 SAS613 CPH → GVA Apr 13, 07:55 UTCApr 13, 08:25 UTC30m
2026-04-13 SAS613 CPH → GVA Apr 13, 06:30 UTCApr 13, 08:15 UTC1h 45m
2026-04-13 SAS1240 - Apr 13, 04:35 UTCApr 13, 05:00 UTC25m
2026-04-12 SAS57R MUC → CPH Apr 12, 18:50 UTCApr 12, 20:00 UTC1h 10m
2026-04-12 SAS2657 - Apr 12, 17:15 UTCApr 12, 17:45 UTC30m

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

Mode-S 4CABDA frequently asked

What is Mode-S code 4CABDA?
4CABDA is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HIA.
Where is Mode-S 4CABDA registered?
Mode-S code 4CABDA is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CABDA broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CABDA, octal 23125732, decimal 5,024,730.
What flights does 4CABDA operate?
Mode-S 4CABDA has broadcast 10 distinct callsigns, including SAS613, SAS22P, SAS1522, SAS57R, SAS2657.