Apparatus

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sensors Mode-S transponder

4CABD4

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CABD4
Octal
23125724
Decimal
5,024,724
Country
IE
Tail
EI-LRH
Type
A21N
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
348
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S 4CABD4.

Country allocation

The ICAO 24-bit address 4CABD4 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
EIN1AC - 28 2026-07-24
EIN1YL Aer Lingus 27 2026-07-24
EIN1LH Aer Lingus 27 2026-07-26
EIN38A Aer Lingus 26 2026-07-26
EIN381 Aer Lingus 26 2026-07-26
EIN1EA Aer Lingus 25 2026-07-26
EIN11T - 13 2026-07-06
EIN909 - 12 2026-07-23
EIN11P - 12 2026-07-06
EIN9HR - 10 2026-07-23
EIN1PR - 9 2026-07-02
EIN13X - 9 2026-07-02
EIN138 - 8 2026-06-30
EIN109 - 7 2026-07-09
EIN108 - 7 2026-07-10
EIN1TC - 6 2026-07-11
EIN139 - 6 2026-06-16
EIN9LT Aer Lingus 5 2026-05-19
EIN52X - 5 2026-07-11
EIN52A - 5 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN1EA JFK → SNN Jul 26, 22:45 UTCJul 26, 23:00 UTC15m
2026-07-26 EIN1LH SNN → JFK Jul 26, 13:35 UTCJul 26, 20:20 UTC6h 45m
2026-07-26 EIN381 LHR → SNN Jul 26, 09:10 UTCJul 26, 10:10 UTC1h 0m
2026-07-26 EIN38A SNN → LHR Jul 26, 06:40 UTCJul 26, 07:40 UTC1h 0m
2026-07-25 EIN1EA JFK → SNN Jul 25, 22:40 UTCJul 26, 04:10 UTC5h 30m
2026-07-25 EIN1LH SNN → JFK Jul 25, 13:30 UTCJul 25, 19:50 UTC6h 20m
2026-07-24 EIN1YL BOS → SNN Jul 24, 22:45 UTCJul 25, 03:45 UTC5h 0m
2026-07-24 EIN1AC - Jul 24, 13:00 UTCJul 24, 19:05 UTC6h 5m
2026-07-24 EIN381 LHR → SNN Jul 24, 09:10 UTCJul 24, 10:00 UTC50m
2026-07-24 EIN38A SNN → LHR Jul 24, 06:35 UTCJul 24, 07:55 UTC1h 20m
2026-07-23 EIN1EA JFK → SNN Jul 23, 23:05 UTCJul 24, 04:40 UTC5h 35m
2026-07-23 EIN1LH - Jul 23, 13:30 UTCJul 23, 19:55 UTC6h 25m
2026-07-23 EIN909 - Jul 23, 09:15 UTCJul 23, 10:35 UTC1h 20m
2026-07-23 EIN9HR - Jul 23, 06:10 UTCJul 23, 07:25 UTC1h 15m
2026-07-22 EIN1YL BOS → SNN Jul 22, 22:35 UTCJul 23, 03:50 UTC5h 15m
2026-07-22 EIN1AC - Jul 22, 12:50 UTCJul 22, 18:55 UTC6h 5m
2026-07-22 EIN1EA JFK → SNN Jul 22, 00:10 UTCJul 22, 05:25 UTC5h 15m
2026-07-21 EIN1LH - Jul 21, 13:25 UTCJul 21, 19:55 UTC6h 30m
2026-07-20 EIN1EA JFK → SNN Jul 20, 22:50 UTCJul 21, 04:20 UTC5h 30m
2026-07-20 EIN1LH - Jul 20, 18:30 UTCJul 20, 20:10 UTC1h 40m
2026-07-20 EIN1LH - Jul 20, 13:35 UTCJul 20, 18:25 UTC4h 50m
2026-07-20 EIN381 LHR → SNN Jul 20, 09:15 UTCJul 20, 10:05 UTC50m
2026-07-20 EIN38A - Jul 20, 06:40 UTCJul 20, 07:45 UTC1h 5m
2026-07-19 EIN1YL BOS → SNN Jul 19, 23:20 UTCJul 20, 04:30 UTC5h 10m
2026-07-19 EIN1AC - Jul 19, 12:50 UTCJul 19, 19:00 UTC6h 10m
2026-07-19 EIN381 LHR → SNN Jul 19, 09:10 UTCJul 19, 10:05 UTC55m
2026-07-19 EIN38A - Jul 19, 06:35 UTCJul 19, 07:30 UTC55m
2026-07-18 EIN1YL BOS → SNN Jul 18, 22:45 UTCJul 19, 04:25 UTC5h 40m
2026-07-18 EIN1AC - Jul 18, 12:50 UTCJul 18, 18:50 UTC6h 0m
2026-07-17 EIN1EA - Jul 17, 22:40 UTCJul 18, 04:20 UTC5h 41m
2026-07-17 EIN1LH - Jul 17, 13:25 UTCJul 17, 19:49 UTC6h 25m
2026-07-16 EIN1EA - Jul 16, 22:35 UTCJul 17, 04:20 UTC5h 45m
2026-07-16 EIN1LH - Jul 16, 13:25 UTCJul 16, 19:55 UTC6h 30m
2026-07-16 EIN381 - Jul 16, 09:20 UTCJul 16, 10:10 UTC50m
2026-07-16 EIN38A - Jul 16, 06:45 UTCJul 16, 08:00 UTC1h 15m
2026-07-15 EIN1EA JFK → SNN Jul 15, 23:10 UTCJul 16, 05:00 UTC5h 50m
2026-07-15 EIN1LH - Jul 15, 13:30 UTCJul 15, 20:10 UTC6h 40m
2026-07-15 EIN381 - Jul 15, 09:10 UTCJul 15, 10:00 UTC50m
2026-07-15 EIN38A - Jul 15, 06:35 UTCJul 15, 07:50 UTC1h 15m
2026-07-14 EIN1EA - Jul 14, 22:15 UTCJul 15, 04:05 UTC5h 49m
2026-07-14 EIN1LH - Jul 14, 13:35 UTCJul 14, 20:00 UTC6h 25m
2026-07-13 EIN1YL - Jul 13, 22:45 UTCJul 14, 04:10 UTC5h 25m
2026-07-13 EIN1AC - Jul 13, 12:45 UTCJul 13, 18:40 UTC5h 55m
2026-07-13 EIN381 - Jul 13, 09:20 UTCJul 13, 10:15 UTC55m
2026-07-13 EIN38A - Jul 13, 06:30 UTCJul 13, 07:40 UTC1h 10m
2026-07-12 EIN1EA - Jul 12, 22:20 UTCJul 13, 04:00 UTC5h 40m
2026-07-12 EIN1LH - Jul 12, 13:30 UTCJul 12, 19:50 UTC6h 20m
2026-07-12 EIN909 - Jul 12, 09:25 UTCJul 12, 10:45 UTC1h 20m
2026-07-12 EIN522 - Jul 12, 07:31 UTCJul 12, 08:01 UTC30m
2026-07-12 EIN522 - Jul 12, 06:55 UTCJul 12, 07:25 UTC30m

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

Mode-S 4CABD4 frequently asked

What is Mode-S code 4CABD4?
4CABD4 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-LRH.
Where is Mode-S 4CABD4 registered?
Mode-S code 4CABD4 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CABD4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CABD4, octal 23125724, decimal 5,024,724.
What flights does 4CABD4 operate?
Mode-S 4CABD4 has broadcast 20 distinct callsigns, including EIN1AC, EIN1YL, EIN1LH, EIN38A, EIN381.