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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 Jul 26, 22:15 UTC
Flights observed
509
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 22:15 UTC

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 15 2026-07-21
EIN40G Aer Lingus 15 2026-07-21
EIN40R - 13 2026-07-15
EIN4GC - 11 2026-07-16
EIN4WL - 10 2026-07-16
EIN404 - 10 2026-07-16
EIN5KE - 9 2026-07-17
EIN59K - 9 2026-07-17
EIN5TJ - 8 2026-06-30
EIN545 - 8 2026-06-30
EIN39A - 8 2026-07-15
EIN60H - 7 2026-06-22
EIN603 - 7 2026-06-22
EIN39C - 7 2026-07-15
EIN2XC - 7 2026-07-15
EIN26M - 7 2026-07-15
EIN6CE - 6 2026-06-28
EIN6AP - 6 2026-07-19
EIN66V - 6 2026-06-28
EIN63N Aer Lingus 6 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN887 AGP → ORK Jul 26, 19:55 UTCJul 26, 22:15 UTC2h 20m
2026-07-26 EIN886 ORK → AGP Jul 26, 16:20 UTCJul 26, 18:35 UTC2h 15m
2026-07-26 EIN8TG ACE → ORK Jul 26, 11:55 UTCJul 26, 15:05 UTC3h 10m
2026-07-26 EIN6PW ORK → ACE Jul 26, 06:50 UTCJul 26, 09:45 UTC2h 55m
2026-07-25 EIN889 AGP → ORK Jul 25, 21:35 UTCJul 26, 00:05 UTC2h 30m
2026-07-25 EIN588 DUB → AGP Jul 25, 17:35 UTCJul 25, 19:55 UTC2h 20m
2026-07-25 EIN7DM TFS → DUB Jul 25, 12:40 UTCJul 25, 16:25 UTC3h 45m
2026-07-25 EIN7PM DUB → TFS Jul 25, 07:15 UTCJul 25, 11:00 UTC3h 45m
2026-07-24 EIN56V BCN → DUB Jul 24, 21:40 UTCJul 24, 23:45 UTC2h 5m
2026-07-24 EIN5TG DUB → NCE Jul 24, 18:20 UTCJul 24, 20:30 UTC2h 10m
2026-07-24 EIN74P SCQ → DUB Jul 24, 15:35 UTCJul 24, 17:15 UTC1h 40m
2026-07-24 EIN4RW DUB → SCQ Jul 24, 12:05 UTCJul 24, 13:50 UTC1h 45m
2026-07-24 EIN55G LYS → DUB Jul 24, 08:25 UTCJul 24, 10:15 UTC1h 50m
2026-07-24 EIN550 DUB → LYS Jul 24, 05:40 UTCJul 24, 07:25 UTC1h 45m
2026-07-23 EIN51G MRS → DUB Jul 23, 15:45 UTCJul 23, 17:40 UTC1h 55m
2026-07-23 EIN514 - Jul 23, 12:45 UTCJul 23, 14:40 UTC1h 55m
2026-07-23 EIN55G LYS → DUB Jul 23, 08:50 UTCJul 23, 10:40 UTC1h 50m
2026-07-23 EIN550 - Jul 23, 06:10 UTCJul 23, 08:05 UTC1h 55m
2026-07-22 EIN4CA JTR → DUB Jul 22, 18:50 UTCJul 22, 23:05 UTC4h 15m
2026-07-22 EIN46J DUB → JTR Jul 22, 13:45 UTCJul 22, 17:25 UTC3h 40m
2026-07-22 EIN3GM - Jul 22, 10:20 UTCJul 22, 11:50 UTC1h 30m
2026-07-21 EIN497 FAO → DUB Jul 21, 19:10 UTCJul 21, 21:30 UTC2h 20m
2026-07-21 EIN496 DUB → FAO Jul 21, 15:45 UTCJul 21, 18:15 UTC2h 30m
2026-07-21 EIN4TH FCO → DUB Jul 21, 10:25 UTCJul 21, 13:05 UTC2h 40m
2026-07-21 EIN40G DUB → FCO Jul 21, 05:45 UTCJul 21, 08:15 UTC2h 30m
2026-07-20 EIN7LM PMI → DUB Jul 20, 19:30 UTCJul 20, 21:50 UTC2h 20m
2026-07-20 EIN736 DUB → PMI Jul 20, 16:10 UTCJul 20, 18:50 UTC2h 40m
2026-07-20 EIN477 DBV → DUB Jul 20, 11:20 UTCJul 20, 14:25 UTC3h 5m
2026-07-20 EIN4AM DUB → DBV Jul 20, 07:05 UTCJul 20, 09:55 UTC2h 50m
2026-07-19 EIN49D FAO → DUB Jul 19, 15:05 UTCJul 19, 17:40 UTC2h 35m
2026-07-19 EIN49J DUB → FAO Jul 19, 11:35 UTCJul 19, 14:05 UTC2h 30m
2026-07-19 EIN6AP - Jul 19, 08:55 UTCJul 19, 10:20 UTC1h 25m
2026-07-19 EIN63N DUB → BRU Jul 19, 06:25 UTCJul 19, 07:40 UTC1h 15m
2026-07-18 EIN76H - Jul 18, 19:45 UTCJul 18, 23:15 UTC3h 30m
2026-07-18 EIN76K - Jul 18, 14:20 UTCJul 18, 18:20 UTC4h 0m
2026-07-18 EIN4TH - Jul 18, 09:50 UTCJul 18, 12:30 UTC2h 40m
2026-07-18 EIN40G DUB → FCO Jul 18, 05:45 UTCJul 18, 08:15 UTC2h 30m
2026-07-17 EIN63K BRU → DUB Jul 17, 19:45 UTCJul 17, 21:00 UTC1h 15m
2026-07-17 EIN63J DUB → BRU Jul 17, 17:30 UTCJul 17, 18:44 UTC1h 15m
2026-07-17 EIN5KM - Jul 17, 15:15 UTCJul 17, 16:29 UTC1h 15m
2026-07-17 EIN52V DUB → CDG Jul 17, 12:45 UTCJul 17, 14:04 UTC1h 20m
2026-07-17 EIN5KE MAD → DUB Jul 17, 08:59 UTCJul 17, 11:04 UTC2h 5m
2026-07-17 EIN59K - Jul 17, 05:45 UTCJul 17, 07:50 UTC2h 5m
2026-07-16 EIN4WL - Jul 16, 14:45 UTCJul 16, 17:30 UTC2h 45m
2026-07-16 EIN404 - Jul 16, 10:25 UTCJul 16, 12:55 UTC2h 30m
2026-07-16 EIN4GC - Jul 16, 05:50 UTCJul 16, 08:30 UTC2h 40m
2026-07-15 EIN40R DUB → FCO Jul 15, 15:20 UTCJul 15, 17:45 UTC2h 25m
2026-07-15 EIN39A - Jul 15, 12:00 UTCJul 15, 13:35 UTC1h 35m
2026-07-15 EIN39C DUB → HAM Jul 15, 09:35 UTCJul 15, 11:10 UTC1h 35m
2026-07-15 EIN26M - Jul 15, 07:25 UTCJul 15, 08:20 UTC55m

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 Jul 26, 22:15 UTC.
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, EIN4GC, EIN4WL.