sensors Mode-S transponder

4CA27F

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DEK · AIRBUS A-320

Hex
4CA27F
Octal
23121177
Decimal
5,022,335
Country
IE
Tail
EI-DEK
Type
A320
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
466
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 4CA27F.

Country allocation

The ICAO 24-bit address 4CA27F 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
EIN2MW - 14 2026-06-16
EIN2CJ - 14 2026-06-16
EIN4TH Aer Lingus 11 2026-07-25
EIN40G Aer Lingus 11 2026-07-25
EIN63K - 9 2026-07-16
EIN5KM - 9 2026-07-16
EIN52V - 9 2026-07-16
EIN3EG - 9 2026-07-01
EIN63J - 8 2026-07-16
EIN3JE - 8 2026-07-01
EIN60Y - 7 2026-07-07
EIN60G - 7 2026-07-07
EIN2EM - 7 2026-07-01
EIN209 - 7 2026-07-01
EIN69L Aer Lingus 6 2026-05-25
EIN65Y Aer Lingus 6 2026-07-24
EIN5ML Aer Lingus 6 2026-06-07
EIN5GV Aer Lingus 6 2026-06-07
EIN4MK - 6 2026-07-09
EIN4EK - 6 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN4KL DUB → SPU Jul 26, 18:10 UTCJul 26, 20:30 UTC2h 20m
2026-07-26 EIN6HR BUD → DUB Jul 26, 10:40 UTCJul 26, 13:50 UTC3h 10m
2026-07-26 EIN67T DUB → BUD Jul 26, 07:10 UTCJul 26, 09:25 UTC2h 15m
2026-07-25 EIN497 FAO → DUB Jul 25, 19:20 UTCJul 25, 22:00 UTC2h 40m
2026-07-25 EIN496 DUB → FAO Jul 25, 15:20 UTCJul 25, 17:35 UTC2h 15m
2026-07-25 EIN4TH FCO → DUB Jul 25, 10:20 UTCJul 25, 13:10 UTC2h 50m
2026-07-25 EIN40G DUB → FCO Jul 25, 05:55 UTCJul 25, 08:25 UTC2h 30m
2026-07-24 EIN27G BHX → DUB Jul 24, 20:20 UTCJul 24, 21:00 UTC40m
2026-07-24 EIN27T DUB → BHX Jul 24, 18:50 UTCJul 24, 19:30 UTC40m
2026-07-24 EIN5PC LYS → DUB Jul 24, 15:45 UTCJul 24, 17:25 UTC1h 40m
2026-07-24 EIN5MW DUB → LYS Jul 24, 12:20 UTCJul 24, 14:05 UTC1h 45m
2026-07-24 EIN65W FRA → DUB Jul 24, 09:15 UTCJul 24, 11:00 UTC1h 45m
2026-07-24 EIN65Y DUB → FRA Jul 24, 06:35 UTCJul 24, 08:05 UTC1h 30m
2026-07-23 EIN7LM PMI → DUB Jul 23, 20:15 UTCJul 23, 22:35 UTC2h 20m
2026-07-23 EIN736 DUB → PMI Jul 23, 16:05 UTCJul 23, 18:35 UTC2h 30m
2026-07-23 EIN58P - Jul 23, 11:50 UTCJul 23, 14:30 UTC2h 40m
2026-07-23 EIN58Y - Jul 23, 08:00 UTCJul 23, 10:30 UTC2h 30m
2026-07-21 EIN7LM PMI → DUB Jul 21, 19:35 UTCJul 21, 21:55 UTC2h 20m
2026-07-21 EIN736 DUB → PMI Jul 21, 15:50 UTCJul 21, 18:05 UTC2h 15m
2026-07-21 EIN45N NAP → DUB Jul 21, 11:00 UTCJul 21, 14:05 UTC3h 5m
2026-07-21 EIN45F DUB → NAP Jul 21, 05:20 UTCJul 21, 07:50 UTC2h 30m
2026-07-20 EIN4HW - Jul 20, 23:25 UTCJul 20, 23:40 UTC15m
2026-07-20 EIN4HW MXP → DUB Jul 20, 20:30 UTCJul 20, 22:30 UTC2h 0m
2026-07-20 EIN4RN DUB → MXP Jul 20, 17:20 UTCJul 20, 19:15 UTC1h 55m
2026-07-20 EIN7AC - Jul 20, 12:15 UTCJul 20, 15:40 UTC3h 25m
2026-07-20 EIN776 DUB → ACE Jul 20, 07:10 UTCJul 20, 10:30 UTC3h 20m
2026-07-18 EIN49D FAO → DUB Jul 18, 14:40 UTCJul 18, 17:10 UTC2h 30m
2026-07-18 EIN49J DUB → FAO Jul 18, 11:10 UTCJul 18, 13:45 UTC2h 35m
2026-07-18 EIN6AP - Jul 18, 08:45 UTCJul 18, 10:00 UTC1h 15m
2026-07-18 EIN63N DUB → BRU Jul 18, 06:15 UTCJul 18, 07:30 UTC1h 15m
2026-07-17 EIN76H - Jul 17, 19:49 UTCJul 17, 23:20 UTC3h 30m
2026-07-17 EIN76K - Jul 17, 14:35 UTCJul 17, 18:19 UTC3h 45m
2026-07-17 EIN45N - Jul 17, 10:25 UTCJul 17, 13:20 UTC2h 55m
2026-07-17 EIN45F - Jul 17, 05:50 UTCJul 17, 08:25 UTC2h 35m
2026-07-16 EIN63K BRU → DUB Jul 16, 19:45 UTCJul 16, 20:55 UTC1h 10m
2026-07-16 EIN63J - Jul 16, 17:20 UTCJul 16, 18:34 UTC1h 15m
2026-07-16 EIN5KM - Jul 16, 14:45 UTCJul 16, 16:00 UTC1h 15m
2026-07-16 EIN52V DUB → CDG Jul 16, 12:20 UTCJul 16, 13:34 UTC1h 15m
2026-07-16 EIN5DR - Jul 16, 09:35 UTCJul 16, 10:59 UTC1h 25m
2026-07-16 EIN522 - Jul 16, 06:55 UTCJul 16, 08:05 UTC1h 10m
2026-07-15 EIN159 - Jul 15, 11:50 UTCJul 15, 12:40 UTC50m
2026-07-15 EIN15C DUB → LHR Jul 15, 09:25 UTCJul 15, 10:30 UTC1h 5m
2026-07-14 EIN58K - Jul 14, 19:25 UTCJul 14, 21:50 UTC2h 25m
2026-07-14 EIN58G - Jul 14, 15:35 UTCJul 14, 18:15 UTC2h 40m
2026-07-14 EIN477 DBV → DUB Jul 14, 11:05 UTCJul 14, 14:15 UTC3h 10m
2026-07-14 EIN4AM DUB → DBV Jul 14, 07:05 UTCJul 14, 09:50 UTC2h 45m
2026-07-13 EIN68R - Jul 13, 15:15 UTCJul 13, 17:10 UTC1h 55m
2026-07-13 EIN68Y DUB → GVA Jul 13, 12:25 UTCJul 13, 14:10 UTC1h 45m
2026-07-13 EIN681 - Jul 13, 08:40 UTCJul 13, 10:30 UTC1h 50m
2026-07-13 EIN680 - Jul 13, 05:10 UTCJul 13, 06:50 UTC1h 40m

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

Mode-S 4CA27F frequently asked

What is Mode-S code 4CA27F?
4CA27F is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DEK.
Where is Mode-S 4CA27F registered?
Mode-S code 4CA27F is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA27F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA27F, octal 23121177, decimal 5,022,335.
What flights does 4CA27F operate?
Mode-S 4CA27F has broadcast 20 distinct callsigns, including EIN2MW, EIN2CJ, EIN4TH, EIN40G, EIN63K.