Apparatus

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sensors Mode-S transponder

4CA615

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-FNH · AIRBUS A-330-300

Hex
4CA615
Octal
23123025
Decimal
5,023,253
Country
IE
Tail
EI-FNH
Type
A333
No current signal · last broadcast Jul 26, 19:00 UTC
Flights observed
267
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 19:00 UTC

Last known position

Most recent position reported by Mode-S 4CA615.

Country allocation

The ICAO 24-bit address 4CA615 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
EIN13K Aer Lingus 33 2026-07-24
EIN13J Aer Lingus 33 2026-07-26
EIN580 Aer Lingus 24 2026-07-21
EIN581 - 23 2026-07-21
EIN1GA - 21 2026-07-21
EIN1AW Aer Lingus 21 2026-07-22
EIN12W Aer Lingus 18 2026-07-25
EIN12G Aer Lingus 16 2026-07-26
EIN122 Aer Lingus 9 2026-07-22
EIN123 - 8 2026-07-22
EIN1MN - 6 2026-06-19
EIN1EN Aer Lingus 5 2026-06-19
EIN119 - 5 2026-06-30
EIN118 - 5 2026-07-01
EIN105 - 5 2026-07-09
EIN104 - 5 2026-07-09
EIN93T - 4 2026-07-19
EIN1TV - 4 2026-06-18
EIN124 - 4 2026-06-19
EIN49W Aer Lingus 3 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN13J DUB → BOS Jul 26, 17:35 UTCJul 26, 18:50 UTC1h 15m
2026-07-26 EIN13J DUB → BOS Jul 26, 12:15 UTCJul 26, 17:30 UTC5h 15m
2026-07-26 EIN12G MCO → DUB Jul 26, 00:55 UTCJul 26, 08:20 UTC7h 26m
2026-07-25 EIN12W DUB → MCO Jul 25, 13:35 UTCJul 25, 22:00 UTC8h 25m
2026-07-24 EIN13K BOS → DUB Jul 24, 21:35 UTCJul 25, 02:45 UTC5h 10m
2026-07-24 EIN13J DUB → BOS Jul 24, 12:10 UTCJul 24, 18:30 UTC6h 20m
2026-07-23 EIN13K BOS → DUB Jul 23, 22:00 UTCJul 24, 03:25 UTC5h 25m
2026-07-23 EIN13J DUB → BOS Jul 23, 12:20 UTCJul 23, 18:35 UTC6h 15m
2026-07-22 EIN122 ORD → DUB Jul 22, 21:25 UTCJul 23, 04:10 UTC6h 45m
2026-07-22 EIN123 - Jul 22, 11:10 UTCJul 22, 18:40 UTC7h 30m
2026-07-22 EIN1AW BOS → DUB Jul 22, 01:15 UTCJul 22, 02:35 UTC1h 20m
2026-07-21 EIN1GA DUB → BOS Jul 21, 16:00 UTCJul 21, 22:20 UTC6h 20m
2026-07-21 EIN581 - Jul 21, 10:50 UTCJul 21, 13:25 UTC2h 35m
2026-07-21 EIN580 DUB → AGP Jul 21, 06:45 UTCJul 21, 09:10 UTC2h 25m
2026-07-20 EIN13K BOS → DUB Jul 20, 21:20 UTCJul 21, 02:40 UTC5h 19m
2026-07-20 EIN13J DUB → BOS Jul 20, 12:10 UTCJul 20, 18:25 UTC6h 15m
2026-07-19 EIN93T FAO → DUB Jul 19, 11:05 UTCJul 19, 13:30 UTC2h 25m
2026-07-19 EIN49W DUB → FAO Jul 19, 07:10 UTCJul 19, 09:35 UTC2h 25m
2026-07-18 EIN581 - Jul 18, 11:15 UTCJul 18, 13:45 UTC2h 30m
2026-07-18 EIN580 - Jul 18, 07:05 UTCJul 18, 09:45 UTC2h 40m
2026-07-17 EIN58K - Jul 17, 19:40 UTCJul 17, 22:05 UTC2h 25m
2026-07-17 EIN58G - Jul 17, 15:49 UTCJul 17, 18:10 UTC2h 20m
2026-07-17 EIN1AW BOS → DUB Jul 17, 01:35 UTCJul 17, 07:05 UTC5h 30m
2026-07-16 EIN1GA DUB → BOS Jul 16, 16:30 UTCJul 16, 22:59 UTC6h 30m
2026-07-15 EIN13K BOS → DUB Jul 15, 21:55 UTCJul 16, 03:15 UTC5h 20m
2026-07-15 EIN13J DUB → BOS Jul 15, 12:10 UTCJul 15, 18:25 UTC6h 15m
2026-07-15 EIN12G MCO → DUB Jul 15, 00:40 UTCJul 15, 08:40 UTC8h 0m
2026-07-14 EIN12W DUB → MCO Jul 14, 13:10 UTCJul 14, 21:35 UTC8h 25m
2026-07-14 EIN1AW BOS → DUB Jul 14, 01:25 UTCJul 14, 07:00 UTC5h 35m
2026-07-13 EIN1GA DUB → BOS Jul 13, 16:05 UTCJul 13, 22:15 UTC6h 10m
2026-07-13 EIN581 - Jul 13, 11:00 UTCJul 13, 13:20 UTC2h 20m
2026-07-13 EIN580 - Jul 13, 07:05 UTCJul 13, 09:45 UTC2h 40m
2026-07-12 EIN13K BOS → DUB Jul 12, 21:30 UTCJul 13, 02:55 UTC5h 25m
2026-07-12 EIN13J DUB → BOS Jul 12, 12:20 UTCJul 12, 18:30 UTC6h 10m
2026-07-12 EIN12G MCO → DUB Jul 12, 01:00 UTCJul 12, 08:45 UTC7h 45m
2026-07-11 EIN12W DUB → MCO Jul 11, 13:20 UTCJul 11, 21:35 UTC8h 15m
2026-07-10 EIN13K BOS → DUB Jul 10, 21:50 UTCJul 11, 03:01 UTC5h 10m
2026-07-10 EIN13J DUB → BOS Jul 10, 12:05 UTCJul 10, 18:40 UTC6h 35m
2026-07-09 EIN104 JFK → DUB Jul 9, 20:50 UTCJul 10, 02:30 UTC5h 40m
2026-07-09 EIN105 DUB → JFK Jul 9, 10:25 UTCJul 9, 17:05 UTC6h 40m
2026-07-09 EIN1AW BOS → DUB Jul 9, 01:20 UTCJul 9, 07:00 UTC5h 40m
2026-07-08 EIN1GA DUB → BOS Jul 8, 16:10 UTCJul 8, 22:30 UTC6h 20m
2026-07-08 EIN581 - Jul 8, 11:10 UTCJul 8, 13:30 UTC2h 20m
2026-07-08 EIN580 - Jul 8, 07:20 UTCJul 8, 09:15 UTC1h 55m
2026-07-08 EIN580 - Jul 8, 06:45 UTCJul 8, 07:15 UTC30m
2026-07-07 EIN122 ORD → DUB Jul 7, 21:25 UTCJul 8, 04:20 UTC6h 55m
2026-07-07 EIN123 DUB → ORD Jul 7, 11:40 UTCJul 7, 19:00 UTC7h 20m
2026-07-06 EIN104 JFK → DUB Jul 6, 21:15 UTCJul 7, 02:50 UTC5h 35m
2026-07-06 EIN105 - Jul 6, 10:40 UTCJul 6, 17:20 UTC6h 40m
2026-07-05 EIN122 ORD → DUB Jul 5, 22:15 UTCJul 6, 04:45 UTC6h 30m

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

Mode-S 4CA615 frequently asked

What is Mode-S code 4CA615?
4CA615 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-FNH.
Where is Mode-S 4CA615 registered?
Mode-S code 4CA615 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA615 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA615, octal 23123025, decimal 5,023,253.
What flights does 4CA615 operate?
Mode-S 4CA615 has broadcast 20 distinct callsigns, including EIN13K, EIN13J, EIN580, EIN581, EIN1GA.