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sensors Mode-S transponder

4CA9BC

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-LRC · AIRBUS A-321neo

Hex
4CA9BC
Octal
23124674
Decimal
5,024,188
Country
IE
Tail
EI-LRC
Type
A21N
Broadcasting now · callsign EIN1PR · 34,975 ft
Flights observed
234
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CA9BC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA9BC 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
EIN11T - 17 2026-07-03
EIN9LT - 16 2026-07-02
EIN9AR - 15 2026-07-01
EIN11P - 15 2026-07-03
EIN1XL - 12 2026-06-30
EIN1TC - 12 2026-06-26
EIN10M - 12 2026-06-26
EIN1XG - 11 2026-07-01
EIN139 - 11 2026-07-11
EIN108 - 11 2026-06-16
EIN1PR - 8 2026-07-14
EIN13X - 8 2026-07-13
EIN138 - 8 2026-07-12
EIN109 - 8 2026-07-04
EIN9EG - 6 2026-07-07
EIN9AF - 5 2026-07-06
EIN3KM - 5 2026-07-04
EIN3GM - 5 2026-07-04
EIN205 - 4 2026-07-11
EIN204 - 4 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EIN1PR - Jul 14, 01:00 UTCJul 14, 05:55 UTC4h 55m
2026-07-13 EIN13X - Jul 13, 16:05 UTCJul 13, 23:10 UTC7h 5m
2026-07-12 EIN138 BOS → DUB Jul 12, 04:35 UTCJul 12, 11:40 UTC7h 5m
2026-07-11 EIN139 - Jul 11, 19:25 UTCJul 12, 02:30 UTC7h 5m
2026-07-11 EIN205 MAN → DUB Jul 11, 11:25 UTCJul 11, 12:00 UTC35m
2026-07-11 EIN204 - Jul 11, 09:40 UTCJul 11, 10:10 UTC30m
2026-07-10 EIN1PR - Jul 10, 22:55 UTCJul 11, 05:40 UTC6h 45m
2026-07-10 EIN13X - Jul 10, 13:40 UTCJul 10, 21:05 UTC7h 26m
2026-07-09 EIN1PR - Jul 9, 23:35 UTCJul 10, 06:10 UTC6h 35m
2026-07-09 EIN13X DUB → BDL Jul 9, 14:30 UTCJul 9, 21:50 UTC7h 20m
2026-07-08 EIN1PR - Jul 8, 23:15 UTCJul 9, 06:15 UTC7h 0m
2026-07-08 EIN13X - Jul 8, 14:30 UTCJul 8, 21:25 UTC6h 55m
2026-07-08 EIN1PR - Jul 8, 00:20 UTCJul 8, 07:20 UTC7h 0m
2026-07-07 EIN13X - Jul 7, 15:10 UTCJul 7, 22:15 UTC7h 5m
2026-07-07 EIN9EG - Jul 7, 02:00 UTCJul 7, 09:20 UTC7h 20m
2026-07-06 EIN9AF - Jul 6, 16:15 UTCJul 7, 00:00 UTC7h 45m
2026-07-06 EIN992 - Jul 6, 01:05 UTCJul 6, 07:55 UTC6h 50m
2026-07-04 EIN109 - Jul 4, 19:45 UTCJul 5, 03:30 UTC7h 45m
2026-07-04 EIN3GM MUC → DUB Jul 4, 10:00 UTCJul 4, 12:15 UTC2h 15m
2026-07-04 EIN3KM DUB → MUC Jul 4, 07:00 UTCJul 4, 08:40 UTC1h 40m
2026-07-03 EIN11P IAD → DUB Jul 3, 21:05 UTCJul 4, 03:20 UTC6h 15m
2026-07-03 EIN11T DUB → IAD Jul 3, 12:00 UTCJul 3, 19:20 UTC7h 20m
2026-07-02 EIN11P IAD → DUB Jul 2, 21:40 UTCJul 3, 03:55 UTC6h 15m
2026-07-02 EIN11T DUB → IAD Jul 2, 12:00 UTCJul 2, 19:40 UTC7h 40m
2026-07-02 EIN9LT - Jul 2, 00:50 UTCJul 2, 07:15 UTC6h 25m
2026-07-01 EIN9AR DUB → CLE Jul 1, 15:40 UTCJul 1, 23:10 UTC7h 30m
2026-07-01 EIN605P - Jul 1, 11:55 UTCJul 1, 13:10 UTC1h 15m
2026-07-01 EIN60T DUB → AMS Jul 1, 09:30 UTCJul 1, 10:40 UTC1h 10m
2026-07-01 EIN1XG - Jul 1, 01:25 UTCJul 1, 07:35 UTC6h 10m
2026-06-30 EIN1XL - Jun 30, 15:30 UTCJun 30, 22:55 UTC7h 25m
2026-06-30 EIN1XG - Jun 30, 01:19 UTCJun 30, 07:35 UTC6h 16m
2026-06-29 EIN1XL - Jun 29, 16:15 UTCJun 29, 23:05 UTC6h 50m
2026-06-29 EIN205 MAN → DUB Jun 29, 11:10 UTCJun 29, 11:39 UTC30m
2026-06-29 EIN204 - Jun 29, 09:25 UTCJun 29, 09:54 UTC30m
2026-06-29 EIN9LT - Jun 29, 00:29 UTCJun 29, 07:09 UTC6h 40m
2026-06-28 EIN9AR DUB → CLE Jun 28, 15:29 UTCJun 28, 22:45 UTC7h 15m
2026-06-28 EIN3GM MUC → DUB Jun 28, 09:50 UTCJun 28, 11:50 UTC2h 0m
2026-06-28 EIN3KM - Jun 28, 06:49 UTCJun 28, 08:50 UTC2h 0m
2026-06-27 EIN3GM MUC → DUB Jun 27, 10:00 UTCJun 27, 12:15 UTC2h 15m
2026-06-27 EIN3KM - Jun 27, 06:44 UTCJun 27, 08:39 UTC1h 55m
2026-06-26 EIN1TC - Jun 26, 21:50 UTCJun 27, 03:34 UTC5h 45m
2026-06-26 EIN10M - Jun 26, 13:04 UTCJun 26, 20:10 UTC7h 5m
2026-06-26 EIN52X - Jun 26, 09:14 UTCJun 26, 10:35 UTC1h 20m
2026-06-26 EIN52A DUB → CDG Jun 26, 06:29 UTCJun 26, 07:50 UTC1h 20m
2026-06-25 EIN11P IAD → DUB Jun 25, 21:50 UTCJun 26, 03:39 UTC5h 50m
2026-06-25 EIN11T DUB → IAD Jun 25, 12:10 UTCJun 25, 19:49 UTC7h 40m
2026-06-25 EIN9LT - Jun 25, 01:24 UTCJun 25, 07:34 UTC6h 10m
2026-06-24 EIN9AR - Jun 24, 15:49 UTCJun 24, 23:34 UTC7h 45m
2026-06-24 EIN52X - Jun 24, 08:45 UTCJun 24, 10:04 UTC1h 20m
2026-06-24 EIN52A DUB → CDG Jun 24, 06:15 UTCJun 24, 07:30 UTC1h 15m

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

Mode-S 4CA9BC frequently asked

What is Mode-S code 4CA9BC?
4CA9BC is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-LRC.
Where is Mode-S 4CA9BC registered?
Mode-S code 4CA9BC is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA9BC broadcasting right now?
Yes. Mode-S 4CA9BC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA9BC, octal 23124674, decimal 5,024,188.
What flights does 4CA9BC operate?
Mode-S 4CA9BC has broadcast 20 distinct callsigns, including EIN11T, EIN9LT, EIN9AR, EIN11P, EIN1XL.