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 1h ago
Flights observed
235
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

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 Aer Lingus 10 2026-05-28
EIN2CJ Aer Lingus 10 2026-05-28
EIN4TH Aer Lingus 7 2026-05-29
EIN40G Aer Lingus 7 2026-05-29
EIN69L Aer Lingus 6 2026-05-25
EIN63K Aer Lingus 6 2026-05-27
EIN3EG Aer Lingus 6 2026-04-26
EIN69X Aer Lingus 5 2026-05-25
EIN63J Aer Lingus 5 2026-05-27
EIN5KM Aer Lingus 5 2026-05-27
EIN52V Aer Lingus 5 2026-05-27
EIN3JE Aer Lingus 5 2026-04-26
EIN60Y Aer Lingus 4 2026-05-23
EIN60G Aer Lingus 4 2026-05-23
EIN5ML Aer Lingus 4 2026-05-17
EIN5GV Aer Lingus 4 2026-05-17
EIN76K Aer Lingus 3 2026-05-29
EIN76H Aer Lingus 3 2026-05-29
EIN681 Aer Lingus 3 2026-05-27
EIN680 Aer Lingus 3 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EIN7DM TFS → DUB May 30, 12:35 UTCMay 30, 15:45 UTC3h 10m
2026-05-30 EIN7PM DUB → TFS May 30, 07:10 UTCMay 30, 11:15 UTC4h 5m
2026-05-29 EIN76H TFS → DUB May 29, 20:40 UTCMay 30, 00:10 UTC3h 30m
2026-05-29 EIN76K DUB → TFS May 29, 15:25 UTCMay 29, 19:10 UTC3h 45m
2026-05-29 EIN4TH FCO → DUB May 29, 10:35 UTCMay 29, 13:15 UTC2h 40m
2026-05-29 EIN40G DUB → FCO May 29, 05:55 UTCMay 29, 08:25 UTC2h 30m
2026-05-28 EIN4MK VRN → DUB May 28, 19:30 UTCMay 28, 21:45 UTC2h 15m
2026-05-28 EIN4EK DUB → VRN May 28, 16:15 UTCMay 28, 18:25 UTC2h 10m
2026-05-28 EIN505 BOD → DUB May 28, 13:35 UTCMay 28, 15:05 UTC1h 30m
2026-05-28 EIN504 DUB → BOD May 28, 10:35 UTCMay 28, 12:05 UTC1h 30m
2026-05-28 EIN2CJ MAN → DUB May 28, 07:55 UTCMay 28, 08:40 UTC45m
2026-05-28 EIN2MW DUB → MAN May 28, 05:55 UTCMay 28, 06:30 UTC35m
2026-05-27 EIN63K BRU → DUB May 27, 20:20 UTCMay 27, 21:45 UTC1h 25m
2026-05-27 EIN63J DUB → BRU May 27, 17:55 UTCMay 27, 19:10 UTC1h 15m
2026-05-27 EIN5KM CDG → DUB May 27, 15:20 UTCMay 27, 16:40 UTC1h 20m
2026-05-27 EIN52V DUB → CDG May 27, 12:25 UTCMay 27, 13:40 UTC1h 15m
2026-05-27 EIN681 GVA → DUB May 27, 08:25 UTCMay 27, 10:15 UTC1h 50m
2026-05-27 EIN680 DUB → GVA May 27, 05:35 UTCMay 27, 07:25 UTC1h 51m
2026-05-26 EIN76H TFS → DUB May 26, 20:05 UTCMay 26, 23:45 UTC3h 40m
2026-05-26 EIN76K DUB → TFS May 26, 15:00 UTCMay 26, 18:50 UTC3h 50m
2026-05-26 EIN6HR BUD → DUB May 26, 10:34 UTCMay 26, 13:29 UTC2h 55m
2026-05-26 EIN67T DUB → BUD May 26, 07:05 UTCMay 26, 09:29 UTC2h 25m
2026-05-25 EIN27G BHX → DUB May 25, 19:50 UTCMay 25, 20:30 UTC40m
2026-05-25 EIN27T DUB → BHX May 25, 18:20 UTCMay 25, 18:55 UTC35m
2026-05-25 EIN5HM PGF → DUB May 25, 15:00 UTCMay 25, 16:55 UTC1h 55m
2026-05-25 EIN1MP DUB → PGF May 25, 12:00 UTCMay 25, 14:05 UTC2h 5m
2026-05-25 EIN69X DUS → DUB May 25, 08:40 UTCMay 25, 10:20 UTC1h 40m
2026-05-25 EIN69L DUB → DUS May 25, 06:20 UTCMay 25, 07:40 UTC1h 20m
2026-05-24 EIN5PC LYS → DUB May 24, 16:40 UTCMay 24, 18:20 UTC1h 40m
2026-05-24 EIN5MW DUB → LYS May 24, 13:45 UTCMay 24, 15:30 UTC1h 45m
2026-05-24 EIN643 PRG → DUB May 24, 10:05 UTCMay 24, 12:10 UTC2h 5m
2026-05-24 EIN642 DUB → PRG May 24, 06:55 UTCMay 24, 08:55 UTC2h 0m
2026-05-23 EIN60Y AMS → DUB May 23, 16:35 UTCMay 23, 17:50 UTC1h 15m
2026-05-23 EIN60G DUB → AMS May 23, 14:30 UTCMay 23, 15:40 UTC1h 10m
2026-05-23 EIN605P AMS → DUB May 23, 12:00 UTCMay 23, 13:15 UTC1h 15m
2026-05-23 EIN60T DUB → AMS May 23, 09:50 UTCMay 23, 10:55 UTC1h 5m
2026-05-23 EIN2CJ MAN → DUB May 23, 08:10 UTCMay 23, 08:45 UTC35m
2026-05-23 EIN2MW DUB → MAN May 23, 05:50 UTCMay 23, 06:25 UTC35m
2026-05-22 EIN4RL LIS → DUB May 22, 21:45 UTCMay 22, 23:50 UTC2h 5m
2026-05-22 EIN4PT DUB → LIS May 22, 18:00 UTCMay 22, 20:40 UTC2h 40m
2026-05-22 EIN5HM PGF → DUB May 22, 14:45 UTCMay 22, 16:45 UTC2h 0m
2026-05-22 EIN1MP DUB → PGF May 22, 11:40 UTCMay 22, 13:40 UTC2h 0m
2026-05-22 EIN681 GVA → DUB May 22, 08:30 UTCMay 22, 10:25 UTC1h 55m
2026-05-22 EIN680 DUB → GVA May 22, 05:35 UTCMay 22, 07:25 UTC1h 50m
2026-05-21 EIN529 CDG → DUB May 21, 20:15 UTCMay 21, 21:35 UTC1h 20m
2026-05-21 EIN52N DUB → CDG May 21, 18:05 UTCMay 21, 19:15 UTC1h 10m
2026-05-21 EIN60Y AMS → DUB May 21, 15:35 UTCMay 21, 16:50 UTC1h 15m
2026-05-21 EIN60G DUB → AMS May 21, 13:25 UTCMay 21, 14:25 UTC1h 0m
2026-05-21 EIN5KE MAD → DUB May 21, 09:30 UTCMay 21, 11:25 UTC1h 55m
2026-05-21 EIN59K DUB → MAD May 21, 05:50 UTCMay 21, 08:00 UTC2h 10m

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 1h ago.
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, EIN69L.