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sensors Mode-S transponder

4CA9CB

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CA9CB
Octal
23124713
Decimal
5,024,203
Country
IE
Tail
EI-LRD
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
320
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4CA9CB.

Country allocation

The ICAO 24-bit address 4CA9CB 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
EIN1TC - 16 2026-07-09
EIN10M - 16 2026-07-09
EIN13X Aer Lingus 14 2026-06-16
EIN1PR - 13 2026-06-16
EIN118 Aer Lingus 13 2026-05-25
EIN9AR - 12 2026-07-11
EIN52A - 12 2026-07-09
EIN9LT - 11 2026-07-12
EIN52X - 11 2026-07-09
EIN119 Aer Lingus 11 2026-05-24
EIN3KM - 10 2026-07-01
EIN3GM - 10 2026-07-01
EIN11P - 10 2026-07-10
EIN139 - 9 2026-07-12
EIN138 - 9 2026-07-07
EIN11T - 9 2026-07-10
EIN60T Aer Lingus 7 2026-06-03
EIN605P Aer Lingus 7 2026-06-03
EIN109 - 7 2026-07-01
EIN108 - 7 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 EIN1EA - Jul 13, 22:25 UTCJul 14, 04:15 UTC5h 50m
2026-07-13 EIN1LH - Jul 13, 13:30 UTCJul 13, 19:40 UTC6h 10m
2026-07-13 EIN144 - Jul 13, 03:45 UTCJul 13, 09:15 UTC5h 30m
2026-07-12 EIN139 DUB → BOS Jul 12, 19:05 UTCJul 13, 01:15 UTC6h 10m
2026-07-12 EIN42C VCE → DUB Jul 12, 13:55 UTCJul 12, 16:15 UTC2h 20m
2026-07-12 EIN42M - Jul 12, 10:35 UTCJul 12, 12:45 UTC2h 10m
2026-07-12 EIN9LT - Jul 12, 00:20 UTCJul 12, 07:01 UTC6h 40m
2026-07-11 EIN9AR - Jul 11, 15:25 UTCJul 11, 22:30 UTC7h 5m
2026-07-11 EIN5DR - Jul 11, 09:40 UTCJul 11, 11:00 UTC1h 20m
2026-07-11 EIN522 DUB → CDG Jul 11, 07:10 UTCJul 11, 08:25 UTC1h 15m
2026-07-10 EIN11P IAD → DUB Jul 10, 21:30 UTCJul 11, 03:35 UTC6h 5m
2026-07-10 EIN11T - Jul 10, 12:00 UTCJul 10, 19:35 UTC7h 35m
2026-07-09 EIN1TC - Jul 9, 21:55 UTCJul 10, 03:45 UTC5h 50m
2026-07-09 EIN10M - Jul 9, 13:05 UTCJul 9, 20:05 UTC7h 0m
2026-07-09 EIN52X - Jul 9, 08:40 UTCJul 9, 10:05 UTC1h 25m
2026-07-09 EIN52A - Jul 9, 06:10 UTCJul 9, 07:30 UTC1h 20m
2026-07-08 EIN1TC EWR → DUB Jul 8, 21:55 UTCJul 9, 04:00 UTC6h 5m
2026-07-08 EIN10M DUB → EWR Jul 8, 13:00 UTCJul 8, 19:50 UTC6h 50m
2026-07-08 EIN52X - Jul 8, 09:05 UTCJul 8, 10:15 UTC1h 10m
2026-07-08 EIN52A DUB → CDG Jul 8, 06:15 UTCJul 8, 07:40 UTC1h 25m
2026-07-07 EIN1TC EWR → DUB Jul 7, 21:35 UTCJul 8, 03:35 UTC6h 0m
2026-07-07 EIN10M - Jul 7, 12:50 UTCJul 7, 19:30 UTC6h 40m
2026-07-07 EIN138 BOS → DUB Jul 7, 03:20 UTCJul 7, 08:50 UTC5h 30m
2026-07-06 EIN145 - Jul 6, 10:00 UTCJul 6, 16:15 UTC6h 15m
2026-07-05 EIN1EA - Jul 5, 23:00 UTCJul 6, 04:20 UTC5h 20m
2026-07-05 EIN1LH - Jul 5, 13:35 UTCJul 5, 20:15 UTC6h 40m
2026-07-05 EIN909 - Jul 5, 09:20 UTCJul 5, 10:40 UTC1h 20m
2026-07-05 EIN9HR - Jul 5, 06:15 UTCJul 5, 07:35 UTC1h 20m
2026-07-04 EIN1YL - Jul 4, 23:15 UTCJul 5, 04:25 UTC5h 10m
2026-07-04 EIN1AC - Jul 4, 12:45 UTCJul 4, 19:10 UTC6h 25m
2026-07-04 EIN381 - Jul 4, 09:10 UTCJul 4, 10:05 UTC55m
2026-07-04 EIN38A - Jul 4, 06:40 UTCJul 4, 07:50 UTC1h 10m
2026-07-03 EIN1EA - Jul 3, 22:35 UTCJul 4, 04:10 UTC5h 35m
2026-07-03 EIN1LH - Jul 3, 13:40 UTCJul 3, 20:30 UTC6h 50m
2026-07-03 EIN144 - Jul 3, 04:05 UTCJul 3, 09:20 UTC5h 15m
2026-07-02 EIN139 DUB → BOS Jul 2, 19:10 UTCJul 3, 02:00 UTC6h 50m
2026-07-02 EIN5PC LYS → DUB Jul 2, 15:10 UTCJul 2, 17:10 UTC2h 0m
2026-07-02 EIN5MW - Jul 2, 12:15 UTCJul 2, 13:55 UTC1h 40m
2026-07-02 EIN108 JFK → DUB Jul 2, 04:05 UTCJul 2, 10:05 UTC6h 0m
2026-07-01 EIN109 DUB → JFK Jul 1, 19:00 UTCJul 2, 02:05 UTC7h 5m
2026-07-01 EIN3GM - Jul 1, 12:05 UTCJul 1, 14:15 UTC2h 10m
2026-07-01 EIN3KM - Jul 1, 09:05 UTCJul 1, 11:00 UTC1h 55m
2026-06-30 EIN1TC EWR → DUB Jun 30, 22:00 UTCJul 1, 04:00 UTC6h 0m
2026-06-30 EIN10M DUB → EWR Jun 30, 12:55 UTCJun 30, 19:50 UTC6h 55m
2026-06-30 EIN52X - Jun 30, 08:50 UTCJun 30, 10:05 UTC1h 15m
2026-06-30 EIN52A DUB → CDG Jun 30, 06:20 UTCJun 30, 07:35 UTC1h 15m
2026-06-29 EIN1TC - Jun 29, 22:00 UTCJun 30, 04:05 UTC6h 5m
2026-06-29 EIN10M DUB → EWR Jun 29, 12:49 UTCJun 29, 19:29 UTC6h 40m
2026-06-29 EIN1XG - Jun 29, 01:29 UTCJun 29, 07:34 UTC6h 5m
2026-06-28 EIN1XL - Jun 28, 15:29 UTCJun 28, 22:49 UTC7h 20m

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

Mode-S 4CA9CB frequently asked

What is Mode-S code 4CA9CB?
4CA9CB is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-LRD.
Where is Mode-S 4CA9CB registered?
Mode-S code 4CA9CB is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA9CB 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 4CA9CB, octal 23124713, decimal 5,024,203.
What flights does 4CA9CB operate?
Mode-S 4CA9CB has broadcast 20 distinct callsigns, including EIN1TC, EIN10M, EIN13X, EIN1PR, EIN118.