Apparatus

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sensors Mode-S transponder

4CA281

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DEI · AIRBUS A-320

Hex
4CA281
Octal
23121201
Decimal
5,022,337
Country
IE
Tail
EI-DEI
Type
A320
No current signal · last broadcast 9h ago
Flights observed
236
Distinct callsigns
20
Country
IE
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 4CA281.

Country allocation

The ICAO 24-bit address 4CA281 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
EIN4TH Aer Lingus 8 2026-05-27
EIN40G Aer Lingus 8 2026-05-27
EIN40R Aer Lingus 7 2026-05-24
EIN5KE Aer Lingus 6 2026-05-23
EIN59K Aer Lingus 6 2026-05-23
EIN4GC Aer Lingus 6 2026-05-25
EIN799 Aer Lingus 5 2026-05-21
EIN4WL Aer Lingus 5 2026-05-25
EIN404 Aer Lingus 5 2026-05-25
EIN39A Aer Lingus 5 2026-05-24
EIN2MW Aer Lingus 5 2026-05-21
EIN2CJ Aer Lingus 5 2026-05-21
EIN7PM Aer Lingus 4 2026-05-29
EIN7DM Aer Lingus 4 2026-05-29
EIN798 Aer Lingus 4 2026-05-21
EIN6CE Aer Lingus 4 2026-05-05
EIN66V Aer Lingus 4 2026-05-05
EIN60H Aer Lingus 4 2026-05-28
EIN603 Aer Lingus 4 2026-05-28
EIN5TJ Aer Lingus 4 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EIN7DM TFS → DUB May 29, 12:20 UTCMay 29, 16:00 UTC3h 40m
2026-05-29 EIN7PM DUB → TFS May 29, 06:45 UTCMay 29, 10:30 UTC3h 45m
2026-05-28 EIN33W BER → DUB May 28, 20:20 UTCMay 28, 22:15 UTC1h 55m
2026-05-28 EIN33T DUB → BER May 28, 17:15 UTCMay 28, 19:10 UTC1h 55m
2026-05-28 EIN545 NCE → DUB May 28, 13:50 UTCMay 28, 16:00 UTC2h 10m
2026-05-28 EIN5TJ DUB → NCE May 28, 10:30 UTCMay 28, 12:35 UTC2h 5m
2026-05-28 EIN603 AMS → DUB May 28, 07:55 UTCMay 28, 09:10 UTC1h 15m
2026-05-28 EIN60H DUB → AMS May 28, 05:50 UTCMay 28, 07:00 UTC1h 10m
2026-05-27 EIN463 CTA → DUB May 27, 19:05 UTCMay 27, 22:30 UTC3h 25m
2026-05-27 EIN46P DUB → CTA May 27, 14:40 UTCMay 27, 17:40 UTC3h 0m
2026-05-27 EIN4TH FCO → DUB May 27, 09:55 UTCMay 27, 12:30 UTC2h 35m
2026-05-27 EIN40G DUB → FCO May 27, 05:49 UTCMay 27, 08:20 UTC2h 31m
2026-05-26 EIN741 OVD → DUB May 26, 20:24 UTCMay 26, 21:55 UTC1h 30m
2026-05-26 EIN740 DUB → OVD May 26, 17:50 UTCMay 26, 19:20 UTC1h 30m
2026-05-26 EIN545 NCE → DUB May 26, 14:05 UTCMay 26, 16:10 UTC2h 5m
2026-05-26 EIN5TJ DUB → NCE May 26, 10:44 UTCMay 26, 13:00 UTC2h 15m
2026-05-26 EIN603 AMS → DUB May 26, 07:55 UTCMay 26, 09:04 UTC1h 10m
2026-05-26 EIN60H DUB → AMS May 26, 05:45 UTCMay 26, 06:44 UTC1h 0m
2026-05-25 EIN4HW MXP → DUB May 25, 21:35 UTCMay 25, 23:30 UTC1h 55m
2026-05-25 EIN4RN DUB → MXP May 25, 18:20 UTCMay 25, 20:24 UTC2h 5m
2026-05-25 EIN4WL FCO → DUB May 25, 14:35 UTCMay 25, 17:05 UTC2h 30m
2026-05-25 EIN404 DUB → FCO May 25, 10:00 UTCMay 25, 12:40 UTC2h 40m
2026-05-25 EIN4GC FCO → DUB May 25, 06:05 UTCMay 25, 08:30 UTC2h 25m
2026-05-24 EIN40R DUB → FCO May 24, 15:10 UTCMay 24, 17:45 UTC2h 35m
2026-05-24 EIN39A HAM → DUB May 24, 11:40 UTCMay 24, 13:25 UTC1h 45m
2026-05-24 EIN39C DUB → HAM May 24, 09:15 UTCMay 24, 10:45 UTC1h 30m
2026-05-24 EIN26M BHX → DUB May 24, 07:25 UTCMay 24, 08:05 UTC40m
2026-05-24 EIN2XC DUB → BHX May 24, 05:40 UTCMay 24, 06:25 UTC45m
2026-05-23 EIN73J PMI → DUB May 23, 22:15 UTCMay 24, 00:35 UTC2h 20m
2026-05-23 EIN738 DUB → PMI May 23, 18:45 UTCMay 23, 21:05 UTC2h 20m
2026-05-23 EIN68R GVA → DUB May 23, 15:10 UTCMay 23, 16:55 UTC1h 45m
2026-05-23 EIN68Y DUB → GVA May 23, 12:25 UTCMay 23, 14:05 UTC1h 40m
2026-05-23 EIN5KE MAD → DUB May 23, 09:15 UTCMay 23, 11:15 UTC2h 0m
2026-05-23 EIN59K DUB → MAD May 23, 05:30 UTCMay 23, 07:40 UTC2h 10m
2026-05-22 EIN5XL ALC → DUB May 22, 21:25 UTCMay 22, 23:40 UTC2h 15m
2026-05-22 EIN574 DUB → ALC May 22, 17:40 UTCMay 22, 20:05 UTC2h 25m
2026-05-22 EIN545 NCE → DUB May 22, 14:00 UTCMay 22, 16:10 UTC2h 10m
2026-05-22 EIN5TJ DUB → NCE May 22, 10:30 UTCMay 22, 12:40 UTC2h 10m
2026-05-22 EIN603 AMS → DUB May 22, 08:00 UTCMay 22, 09:15 UTC1h 15m
2026-05-22 EIN60H DUB → AMS May 22, 05:45 UTCMay 22, 06:50 UTC1h 5m
2026-05-21 EIN799 ADB → DUB May 21, 20:15 UTCMay 22, 00:20 UTC4h 5m
2026-05-21 EIN798 DUB → ADB May 21, 15:10 UTCMay 21, 18:55 UTC3h 45m
2026-05-21 EIN505 BOD → DUB May 21, 12:10 UTCMay 21, 13:40 UTC1h 30m
2026-05-21 EIN504 DUB → BOD May 21, 09:30 UTCMay 21, 11:05 UTC1h 35m
2026-05-21 EIN2CJ MAN → DUB May 21, 07:50 UTCMay 21, 08:20 UTC30m
2026-05-21 EIN2MW DUB → MAN May 21, 05:45 UTCMay 21, 06:20 UTC35m
2026-05-20 EIN4MK VRN → DUB May 20, 17:20 UTCMay 20, 19:40 UTC2h 20m
2026-05-20 EIN4EK DUB → VRN May 20, 14:05 UTCMay 20, 16:10 UTC2h 5m
2026-05-20 EIN4TH FCO → DUB May 20, 10:05 UTCMay 20, 12:45 UTC2h 40m
2026-05-20 EIN40G DUB → FCO May 20, 05:50 UTCMay 20, 08:10 UTC2h 20m

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

Mode-S 4CA281 frequently asked

What is Mode-S code 4CA281?
4CA281 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DEI.
Where is Mode-S 4CA281 registered?
Mode-S code 4CA281 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA281 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA281, octal 23121201, decimal 5,022,337.
What flights does 4CA281 operate?
Mode-S 4CA281 has broadcast 20 distinct callsigns, including EIN4TH, EIN40G, EIN40R, EIN5KE, EIN59K.