Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CA842

ICAO 24-bit transponder address · allocated to Ireland

Hex
4CA842
Octal
23124102
Decimal
5,023,810
Country
IE
No current signal · last broadcast 5d ago
Flights observed
186
Distinct callsigns
20
Country
IE
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 4CA842.

Country allocation

The ICAO 24-bit address 4CA842 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
EIN1MN Aer Lingus 58 2026-07-26
EIN1EN Aer Lingus 58 2026-07-26
EIN581 - 7 2026-07-06
EIN580 - 7 2026-07-06
EIN1GA - 6 2026-07-06
EIN1AW - 6 2026-07-07
EIN93T - 3 2026-07-08
EIN49W - 3 2026-07-08
EIN12W Aer Lingus 3 2026-07-22
EIN12G Aer Lingus 3 2026-07-23
EIN107 - 3 2026-07-08
EIN106 - 3 2026-07-09
EIN7AC Aer Lingus 2 2026-06-20
EIN776 - 2 2026-06-20
EIN58Y Aer Lingus 2 2026-06-15
EIN58P Aer Lingus 2 2026-06-15
EIN123 Aer Lingus 2 2026-05-24
EIN122 Aer Lingus 2 2026-05-24
EIN105 - 2 2026-07-19
EIN104 - 2 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN1MN YYZ → DUB Jul 26, 22:00 UTCJul 26, 22:30 UTC30m
2026-07-26 EIN1EN DUB → YYZ Jul 26, 12:45 UTCJul 26, 19:35 UTC6h 50m
2026-07-25 EIN1MN YYZ → DUB Jul 25, 21:50 UTCJul 26, 03:40 UTC5h 50m
2026-07-25 EIN1EN DUB → YYZ Jul 25, 12:50 UTCJul 25, 19:40 UTC6h 50m
2026-07-24 EIN1MN YYZ → DUB Jul 24, 21:50 UTCJul 25, 03:35 UTC5h 45m
2026-07-24 EIN1EN DUB → YYZ Jul 24, 12:50 UTCJul 24, 19:45 UTC6h 55m
2026-07-23 EIN1MN YYZ → DUB Jul 23, 21:55 UTCJul 24, 03:45 UTC5h 50m
2026-07-23 EIN1EN DUB → YYZ Jul 23, 12:40 UTCJul 23, 19:30 UTC6h 50m
2026-07-23 EIN12G MCO → DUB Jul 23, 00:35 UTCJul 23, 08:05 UTC7h 30m
2026-07-22 EIN12W DUB → MCO Jul 22, 13:15 UTCJul 22, 21:15 UTC8h 0m
2026-07-21 EIN124 ORD → DUB Jul 21, 02:40 UTCJul 21, 09:25 UTC6h 45m
2026-07-20 EIN1TV DUB → ORD Jul 20, 16:30 UTCJul 21, 00:05 UTC7h 34m
2026-07-20 EIN52X CDG → DUB Jul 20, 11:15 UTCJul 20, 12:25 UTC1h 10m
2026-07-20 EIN52A DUB → CDG Jul 20, 08:35 UTCJul 20, 09:50 UTC1h 15m
2026-07-19 EIN104 JFK → DUB Jul 19, 21:20 UTCJul 20, 03:05 UTC5h 45m
2026-07-19 EIN105 DUB → JFK Jul 19, 10:40 UTCJul 19, 17:25 UTC6h 45m
2026-07-18 EIN1MN YYZ → DUB Jul 18, 21:50 UTCJul 19, 04:05 UTC6h 15m
2026-07-18 EIN1EN DUB → YYZ Jul 18, 12:45 UTCJul 18, 19:35 UTC6h 50m
2026-07-17 EIN1MN YYZ → DUB Jul 17, 21:50 UTCJul 18, 04:05 UTC6h 16m
2026-07-17 EIN1EN DUB → YYZ Jul 17, 12:55 UTCJul 17, 19:25 UTC6h 30m
2026-07-16 EIN1MN YYZ → DUB Jul 16, 21:50 UTCJul 17, 03:59 UTC6h 10m
2026-07-16 EIN1EN DUB → YYZ Jul 16, 12:34 UTCJul 16, 19:14 UTC6h 40m
2026-07-15 EIN1MN - Jul 15, 22:00 UTCJul 16, 04:05 UTC6h 5m
2026-07-15 EIN1EN DUB → YYZ Jul 15, 12:55 UTCJul 15, 19:40 UTC6h 45m
2026-07-14 EIN1MN YYZ → DUB Jul 14, 21:50 UTCJul 15, 04:00 UTC6h 9m
2026-07-14 EIN1EN DUB → YYZ Jul 14, 12:50 UTCJul 14, 19:25 UTC6h 35m
2026-07-13 EIN1MN YYZ → DUB Jul 13, 21:50 UTCJul 14, 04:10 UTC6h 20m
2026-07-13 EIN1EN DUB → YYZ Jul 13, 13:10 UTCJul 13, 19:35 UTC6h 25m
2026-07-12 EIN1MN YYZ → DUB Jul 12, 21:55 UTCJul 13, 04:10 UTC6h 15m
2026-07-12 EIN1EN DUB → YYZ Jul 12, 12:40 UTCJul 12, 19:05 UTC6h 25m
2026-07-11 EIN1MN YYZ → DUB Jul 11, 21:30 UTCJul 12, 03:40 UTC6h 10m
2026-07-11 EIN1EN DUB → YYZ Jul 11, 12:35 UTCJul 11, 19:30 UTC6h 55m
2026-07-10 EIN1MN YYZ → DUB Jul 10, 22:05 UTCJul 11, 03:45 UTC5h 40m
2026-07-10 EIN1EN DUB → YYZ Jul 10, 12:45 UTCJul 10, 19:40 UTC6h 55m
2026-07-09 EIN1MN YYZ → DUB Jul 9, 21:55 UTCJul 10, 04:00 UTC6h 5m
2026-07-09 EIN1EN - Jul 9, 12:45 UTCJul 9, 19:45 UTC7h 0m
2026-07-09 EIN106 - Jul 9, 01:50 UTCJul 9, 07:55 UTC6h 5m
2026-07-08 EIN107 DUB → JFK Jul 8, 16:30 UTCJul 8, 23:05 UTC6h 35m
2026-07-08 EIN93T - Jul 8, 11:40 UTCJul 8, 14:00 UTC2h 20m
2026-07-08 EIN49W DUB → FAO Jul 8, 07:10 UTCJul 8, 09:40 UTC2h 30m
2026-07-07 EIN1MN YYZ → DUB Jul 7, 21:50 UTCJul 8, 04:05 UTC6h 15m
2026-07-07 EIN1EN DUB → YYZ Jul 7, 12:45 UTCJul 7, 19:20 UTC6h 35m
2026-07-07 EIN1AW BOS → DUB Jul 7, 01:15 UTCJul 7, 06:35 UTC5h 20m
2026-07-06 EIN1GA - Jul 6, 16:10 UTCJul 6, 22:35 UTC6h 25m
2026-07-06 EIN581 - Jul 6, 11:00 UTCJul 6, 13:30 UTC2h 30m
2026-07-06 EIN580 - Jul 6, 06:55 UTCJul 6, 09:15 UTC2h 20m
2026-07-05 EIN1MN YYZ → DUB Jul 5, 21:50 UTCJul 6, 03:35 UTC5h 45m
2026-07-05 EIN1EN DUB → YYZ Jul 5, 12:45 UTCJul 5, 19:35 UTC6h 50m
2026-07-04 EIN1MN YYZ → DUB Jul 4, 21:40 UTCJul 5, 03:30 UTC5h 50m
2026-07-04 EIN1EN - Jul 4, 12:30 UTCJul 4, 19:30 UTC7h 0m

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.

Mode-S 4CA842 frequently asked

What is Mode-S code 4CA842?
4CA842 is an ICAO 24-bit transponder address. Allocated to Ireland.
Where is Mode-S 4CA842 registered?
Mode-S code 4CA842 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA842 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA842, octal 23124102, decimal 5,023,810.
What flights does 4CA842 operate?
Mode-S 4CA842 has broadcast 20 distinct callsigns, including EIN1MN, EIN1EN, EIN581, EIN580, EIN1GA.