Apparatus

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sensors Mode-S transponder

4CA217

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DEF · AIRBUS A-320

Hex
4CA217
Octal
23121027
Decimal
5,022,231
Country
IE
Tail
EI-DEF
Type
A320
Broadcasting now · callsign EIN4WL · 7,525 ft
Flights observed
343
Distinct callsigns
20
Country
IE
Last broadcast
11d ago

Current position

4CA217 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA217 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
EIN45F Aer Lingus 24 2026-07-23
EIN45N Aer Lingus 23 2026-07-23
EIN76K Aer Lingus 18 2026-07-23
EIN76H Aer Lingus 18 2026-07-23
EIN5HA - 6 2026-07-17
EIN585 - 6 2026-07-17
EIN429 - 6 2026-07-17
EIN428 Aer Lingus 6 2026-07-17
EIN681 - 5 2026-07-20
EIN680 Aer Lingus 5 2026-07-20
EIN4GV Aer Lingus 5 2026-07-21
EIN440 Aer Lingus 5 2026-07-21
EIN2MW Aer Lingus 5 2026-07-25
EIN6CE - 4 2026-07-10
EIN69X - 4 2026-07-15
EIN69L - 4 2026-07-15
EIN60H - 4 2026-07-19
EIN603 - 4 2026-07-19
EIN5TJ - 4 2026-07-19
EIN545 Aer Lingus 4 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN497 FAO → DUB Jul 26, 19:05 UTCJul 26, 21:45 UTC2h 40m
2026-07-26 EIN496 DUB → FAO Jul 26, 15:35 UTCJul 26, 17:55 UTC2h 20m
2026-07-25 EIN60Y AMS → DUB Jul 25, 16:20 UTCJul 25, 17:35 UTC1h 15m
2026-07-25 EIN60G DUB → AMS Jul 25, 14:05 UTCJul 25, 15:05 UTC1h 0m
2026-07-25 EIN605P AMS → DUB Jul 25, 11:45 UTCJul 25, 13:00 UTC1h 15m
2026-07-25 EIN60T DUB → AMS Jul 25, 09:30 UTCJul 25, 10:40 UTC1h 10m
2026-07-25 EIN2CJ MAN → DUB Jul 25, 07:40 UTCJul 25, 08:15 UTC35m
2026-07-25 EIN2MW DUB → MAN Jul 25, 06:00 UTCJul 25, 06:35 UTC35m
2026-07-25 EIN2MW DUB → MAN Jul 25, 05:40 UTCJul 25, 05:45 UTC5m
2026-07-24 EIN33W BER → DUB Jul 24, 20:00 UTCJul 24, 21:50 UTC1h 50m
2026-07-24 EIN33T DUB → BER Jul 24, 17:10 UTCJul 24, 19:05 UTC1h 55m
2026-07-23 EIN76H TFS → DUB Jul 23, 20:20 UTCJul 23, 23:40 UTC3h 20m
2026-07-23 EIN76K DUB → TFS Jul 23, 14:50 UTCJul 23, 18:50 UTC4h 0m
2026-07-23 EIN45N NAP → DUB Jul 23, 10:15 UTCJul 23, 13:10 UTC2h 55m
2026-07-23 EIN45F DUB → NAP Jul 23, 05:50 UTCJul 23, 08:25 UTC2h 35m
2026-07-22 EIN449 HER → DUB Jul 22, 20:05 UTCJul 23, 00:20 UTC4h 15m
2026-07-22 EIN448 DUB → HER Jul 22, 13:55 UTCJul 22, 17:45 UTC3h 50m
2026-07-22 EIN5KE MAD → DUB Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-21 EIN58K AGP → DUB Jul 21, 19:35 UTCJul 21, 22:00 UTC2h 25m
2026-07-21 EIN58G DUB → AGP Jul 21, 15:40 UTCJul 21, 18:05 UTC2h 25m
2026-07-21 EIN4GV ATH → DUB Jul 21, 10:20 UTCJul 21, 14:15 UTC3h 55m
2026-07-21 EIN440 DUB → ATH Jul 21, 05:10 UTCJul 21, 08:50 UTC3h 40m
2026-07-20 EIN56V BCN → DUB Jul 20, 22:55 UTCJul 21, 01:00 UTC2h 4m
2026-07-20 EIN5TG DUB → NCE Jul 20, 18:30 UTCJul 20, 20:30 UTC2h 0m
2026-07-20 EIN49D - Jul 20, 14:45 UTCJul 20, 17:10 UTC2h 25m
2026-07-20 EIN49J DUB → FAO Jul 20, 11:10 UTCJul 20, 13:40 UTC2h 30m
2026-07-20 EIN681 GVA → DUB Jul 20, 08:15 UTCJul 20, 10:00 UTC1h 45m
2026-07-20 EIN680 DUB → GVA Jul 20, 05:10 UTCJul 20, 06:55 UTC1h 45m
2026-07-19 EIN33W BER → DUB Jul 19, 20:05 UTCJul 19, 22:05 UTC2h 0m
2026-07-19 EIN33T DUB → BER Jul 19, 17:15 UTCJul 19, 19:10 UTC1h 55m
2026-07-19 EIN545 NCE → DUB Jul 19, 13:50 UTCJul 19, 16:05 UTC2h 15m
2026-07-19 EIN5TJ DUB → NCE Jul 19, 10:40 UTCJul 19, 12:45 UTC2h 5m
2026-07-19 EIN603 - Jul 19, 07:55 UTCJul 19, 09:10 UTC1h 15m
2026-07-19 EIN60H DUB → AMS Jul 19, 05:40 UTCJul 19, 06:50 UTC1h 10m
2026-07-18 EIN4637 BRU → DUB Jul 18, 20:40 UTCJul 18, 21:55 UTC1h 15m
2026-07-18 EIN4636 DUB → BRU Jul 18, 17:40 UTCJul 18, 18:45 UTC1h 5m
2026-07-18 EIN545 NCE → DUB Jul 18, 14:15 UTCJul 18, 16:25 UTC2h 10m
2026-07-18 EIN5TJ DUB → NCE Jul 18, 10:35 UTCJul 18, 12:35 UTC2h 0m
2026-07-18 EIN603 - Jul 18, 08:00 UTCJul 18, 09:10 UTC1h 10m
2026-07-18 EIN60H - Jul 18, 05:30 UTCJul 18, 06:45 UTC1h 15m
2026-07-17 EIN585 - Jul 17, 16:55 UTCJul 17, 19:20 UTC2h 25m
2026-07-17 EIN5HA - Jul 17, 12:45 UTCJul 17, 15:15 UTC2h 30m
2026-07-17 EIN429 - Jul 17, 08:54 UTCJul 17, 11:15 UTC2h 20m
2026-07-17 EIN428 DUB → PSA Jul 17, 05:15 UTCJul 17, 07:35 UTC2h 20m
2026-07-16 EIN33W BER → DUB Jul 16, 20:09 UTCJul 16, 22:00 UTC1h 50m
2026-07-16 EIN33T DUB → BER Jul 16, 17:10 UTCJul 16, 18:55 UTC1h 45m
2026-07-16 EIN505 BOD → DUB Jul 16, 13:49 UTCJul 16, 15:19 UTC1h 30m
2026-07-16 EIN504 DUB → BOD Jul 16, 11:15 UTCJul 16, 12:49 UTC1h 35m
2026-07-16 EIN2CJ MAN → DUB Jul 16, 07:55 UTCJul 16, 08:35 UTC40m
2026-07-16 EIN2MW DUB → MAN Jul 16, 06:10 UTCJul 16, 06:45 UTC35m

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

Mode-S 4CA217 frequently asked

What is Mode-S code 4CA217?
4CA217 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DEF.
Where is Mode-S 4CA217 registered?
Mode-S code 4CA217 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA217 broadcasting right now?
Yes. Mode-S 4CA217 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA217, octal 23121027, decimal 5,022,231.
What flights does 4CA217 operate?
Mode-S 4CA217 has broadcast 20 distinct callsigns, including EIN45F, EIN45N, EIN76K, EIN76H, EIN5HA.