sensors Mode-S transponder

4CA2CA

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DES · AIRBUS A-320

Hex
4CA2CA
Octal
23121312
Decimal
5,022,410
Country
IE
Tail
EI-DES
Type
A320
No current signal · last broadcast 12h ago
Flights observed
457
Distinct callsigns
20
Country
IE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4CA2CA.

Country allocation

The ICAO 24-bit address 4CA2CA 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
EIN4RG - 12 2026-07-10
EIN43R - 12 2026-07-10
EIN3CG - 12 2026-07-04
EIN34J - 10 2026-07-04
EIN52N - 9 2026-07-10
EIN529 - 9 2026-07-10
EIN69L - 8 2026-06-24
EIN60Y - 8 2026-07-10
EIN60G - 8 2026-07-10
EIN5YP - 8 2026-07-02
EIN5NP - 8 2026-07-02
EIN78L - 7 2026-07-01
EIN69X - 7 2026-06-24
EIN477 - 7 2026-07-11
EIN893 Aer Lingus 6 2026-05-10
EIN892 Aer Lingus 6 2026-05-10
EIN61V - 6 2026-07-02
EIN611 - 6 2026-07-02
EIN4KL Aer Lingus 6 2026-06-30
EIN4AM - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EIN49D FAO → DUB Jul 14, 15:15 UTCJul 14, 17:35 UTC2h 20m
2026-07-14 EIN49J - Jul 14, 11:30 UTCJul 14, 14:15 UTC2h 45m
2026-07-14 EIN6AP BRU → DUB Jul 14, 08:50 UTCJul 14, 10:10 UTC1h 20m
2026-07-14 EIN63N - Jul 14, 06:10 UTCJul 14, 07:35 UTC1h 25m
2026-07-13 EIN5HM PGF → DUB Jul 13, 14:55 UTCJul 13, 16:55 UTC2h 0m
2026-07-13 EIN1MP DUB → PGF Jul 13, 11:45 UTCJul 13, 13:45 UTC2h 0m
2026-07-13 EIN55G - Jul 13, 08:25 UTCJul 13, 10:10 UTC1h 45m
2026-07-13 EIN550 - Jul 13, 05:20 UTCJul 13, 07:01 UTC1h 40m
2026-07-12 EIN497 FAO → DUB Jul 12, 20:01 UTCJul 12, 22:25 UTC2h 25m
2026-07-12 EIN496 DUB → FAO Jul 12, 16:35 UTCJul 12, 19:05 UTC2h 30m
2026-07-12 EIN26M - Jul 12, 07:50 UTCJul 12, 08:40 UTC50m
2026-07-12 EIN2XC DUB → BHX Jul 12, 05:55 UTCJul 12, 06:40 UTC45m
2026-07-11 EIN3AV - Jul 11, 21:35 UTCJul 12, 01:25 UTC3h 50m
2026-07-11 EIN37W - Jul 11, 16:30 UTCJul 11, 19:50 UTC3h 20m
2026-07-11 EIN477 DBV → DUB Jul 11, 11:45 UTCJul 11, 14:50 UTC3h 5m
2026-07-11 EIN4AM - Jul 11, 07:00 UTCJul 11, 09:30 UTC2h 30m
2026-07-10 EIN529 CDG → DUB Jul 10, 20:00 UTCJul 10, 21:20 UTC1h 20m
2026-07-10 EIN52N - Jul 10, 17:40 UTCJul 10, 18:55 UTC1h 15m
2026-07-10 EIN60Y - Jul 10, 15:15 UTCJul 10, 16:30 UTC1h 15m
2026-07-10 EIN60G DUB → AMS Jul 10, 13:00 UTCJul 10, 14:10 UTC1h 10m
2026-07-10 EIN43R LIN → DUB Jul 10, 09:35 UTCJul 10, 11:40 UTC2h 5m
2026-07-10 EIN4RG DUB → LIN Jul 10, 06:30 UTCJul 10, 08:35 UTC2h 5m
2026-07-09 EIN60Y - Jul 9, 16:00 UTCJul 9, 17:20 UTC1h 20m
2026-07-09 EIN60G - Jul 9, 13:55 UTCJul 9, 15:00 UTC1h 5m
2026-07-09 EIN43R LIN → DUB Jul 9, 09:35 UTCJul 9, 11:40 UTC2h 5m
2026-07-09 EIN4RG DUB → LIN Jul 9, 06:25 UTCJul 9, 08:35 UTC2h 10m
2026-07-08 EIN76H - Jul 8, 20:00 UTCJul 8, 23:30 UTC3h 30m
2026-07-08 EIN76K - Jul 8, 14:45 UTCJul 8, 18:45 UTC4h 0m
2026-07-08 EIN45N - Jul 8, 10:00 UTCJul 8, 13:05 UTC3h 5m
2026-07-08 EIN45F - Jul 8, 05:15 UTCJul 8, 08:10 UTC2h 55m
2026-07-07 EIN76H TFS → DUB Jul 7, 19:50 UTCJul 7, 23:25 UTC3h 35m
2026-07-07 EIN76K - Jul 7, 14:40 UTCJul 7, 18:25 UTC3h 45m
2026-07-07 EIN43R LIN → DUB Jul 7, 09:55 UTCJul 7, 12:05 UTC2h 10m
2026-07-07 EIN4RG - Jul 7, 06:50 UTCJul 7, 08:50 UTC2h 0m
2026-07-06 EIN4WL - Jul 6, 14:20 UTCJul 6, 17:05 UTC2h 45m
2026-07-06 EIN404 - Jul 6, 09:50 UTCJul 6, 12:20 UTC2h 30m
2026-07-06 EIN4GC - Jul 6, 05:50 UTCJul 6, 08:40 UTC2h 50m
2026-07-05 EIN40R DUB → FCO Jul 5, 15:05 UTCJul 5, 17:40 UTC2h 35m
2026-07-05 EIN39A - Jul 5, 11:55 UTCJul 5, 13:45 UTC1h 50m
2026-07-05 EIN39C DUB → HAM Jul 5, 09:20 UTCJul 5, 10:50 UTC1h 30m
2026-07-05 EIN26M - Jul 5, 07:20 UTCJul 5, 08:05 UTC45m
2026-07-05 EIN2XC DUB → BHX Jul 5, 05:55 UTCJul 5, 06:35 UTC40m
2026-07-04 EIN529 - Jul 4, 19:50 UTCJul 4, 21:10 UTC1h 20m
2026-07-04 EIN52N - Jul 4, 17:40 UTCJul 4, 18:50 UTC1h 10m
2026-07-04 EIN5KM - Jul 4, 15:10 UTCJul 4, 16:30 UTC1h 20m
2026-07-04 EIN52V - Jul 4, 12:50 UTCJul 4, 14:05 UTC1h 15m
2026-07-04 EIN34J ZRH → DUB Jul 4, 09:40 UTCJul 4, 11:45 UTC2h 5m
2026-07-04 EIN3CG DUB → ZRH Jul 4, 06:50 UTCJul 4, 08:30 UTC1h 40m
2026-07-03 EIN529 - Jul 3, 20:00 UTCJul 3, 21:25 UTC1h 25m
2026-07-03 EIN52N - Jul 3, 17:45 UTCJul 3, 19:00 UTC1h 15m

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

Mode-S 4CA2CA frequently asked

What is Mode-S code 4CA2CA?
4CA2CA is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DES.
Where is Mode-S 4CA2CA registered?
Mode-S code 4CA2CA is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA2CA broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA2CA, octal 23121312, decimal 5,022,410.
What flights does 4CA2CA operate?
Mode-S 4CA2CA has broadcast 20 distinct callsigns, including EIN4RG, EIN43R, EIN3CG, EIN34J, EIN52N.