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 3h ago
Flights observed
167
Distinct callsigns
20
Country
IE
Last broadcast
3h ago

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
EIN11T Aer Lingus 11 2026-05-14
EIN11P Aer Lingus 10 2026-05-14
EIN1PR Aer Lingus 8 2026-05-16
EIN1AC Aer Lingus 8 2026-05-30
EIN13X Aer Lingus 8 2026-05-16
EIN1YL Aer Lingus 6 2026-05-29
EIN138 Aer Lingus 6 2026-05-21
EIN109 Aer Lingus 6 2026-05-15
EIN108 Aer Lingus 6 2026-05-16
EIN9LT Aer Lingus 5 2026-05-19
EIN3KM Aer Lingus 5 2026-05-17
EIN3GM Aer Lingus 5 2026-05-17
EIN38A Aer Lingus 5 2026-05-29
EIN381 Aer Lingus 5 2026-05-29
EIN139 Aer Lingus 5 2026-05-21
EIN119 Aer Lingus 5 2026-05-13
EIN9CJ - 4 2026-04-14
EIN118 Aer Lingus 4 2026-05-14
EIN9HW Aer Lingus 3 2026-04-15
EIN9AR Aer Lingus 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EIN1AC SNN → BOS May 30, 12:50 UTCMay 30, 13:25 UTC35m
2026-05-29 EIN1YL BOS → SNN May 29, 22:45 UTCMay 30, 04:15 UTC5h 30m
2026-05-29 EIN1AC SNN → BOS May 29, 12:50 UTCMay 29, 18:50 UTC6h 0m
2026-05-29 EIN381 LHR → SNN May 29, 09:15 UTCMay 29, 10:10 UTC55m
2026-05-29 EIN38A SNN → LHR May 29, 06:45 UTCMay 29, 07:45 UTC1h 0m
2026-05-28 EIN1YL BOS → SNN May 28, 22:40 UTCMay 29, 04:10 UTC5h 30m
2026-05-28 EIN1AC SNN → BOS May 28, 12:50 UTCMay 28, 18:40 UTC5h 50m
2026-05-28 EIN909 CDG → SNN May 28, 09:30 UTCMay 28, 10:50 UTC1h 20m
2026-05-28 EIN9HR SNN → CDG May 28, 06:35 UTCMay 28, 07:55 UTC1h 20m
2026-05-27 EIN1YL BOS → SNN May 27, 22:40 UTCMay 28, 04:20 UTC5h 40m
2026-05-27 EIN1AC SNN → BOS May 27, 13:00 UTCMay 27, 18:45 UTC5h 45m
2026-05-27 EIN381 LHR → SNN May 27, 09:10 UTCMay 27, 10:05 UTC55m
2026-05-27 EIN38A SNN → LHR May 27, 06:34 UTCMay 27, 07:40 UTC1h 5m
2026-05-26 EIN1EA JFK → SNN May 26, 22:35 UTCMay 27, 04:34 UTC6h 0m
2026-05-26 EIN1LH SNN → JFK May 26, 13:34 UTCMay 26, 20:00 UTC6h 25m
2026-05-25 EIN1YL BOS → SNN May 25, 22:55 UTCMay 26, 04:10 UTC5h 15m
2026-05-25 EIN1AC SNN → BOS May 25, 12:50 UTCMay 25, 18:55 UTC6h 5m
2026-05-25 EIN381 LHR → SNN May 25, 09:35 UTCMay 25, 10:25 UTC50m
2026-05-25 EIN38A SNN → LHR May 25, 06:40 UTCMay 25, 07:50 UTC1h 10m
2026-05-24 EIN1EA JFK → SNN May 24, 23:00 UTCMay 25, 04:25 UTC5h 25m
2026-05-24 EIN1LH SNN → JFK May 24, 13:35 UTCMay 24, 20:25 UTC6h 50m
2026-05-24 EIN909 CDG → SNN May 24, 08:55 UTCMay 24, 10:15 UTC1h 20m
2026-05-24 EIN9HR SNN → CDG May 24, 06:15 UTCMay 24, 07:40 UTC1h 25m
2026-05-23 EIN1YL BOS → SNN May 23, 22:45 UTCMay 24, 04:00 UTC5h 15m
2026-05-23 EIN1AC SNN → BOS May 23, 12:55 UTCMay 23, 19:10 UTC6h 16m
2026-05-23 EIN381 LHR → SNN May 23, 09:10 UTCMay 23, 10:05 UTC55m
2026-05-23 EIN38A SNN → LHR May 23, 06:40 UTCMay 23, 07:50 UTC1h 10m
2026-05-22 EIN1EA JFK → SNN May 22, 22:35 UTCMay 23, 03:50 UTC5h 14m
2026-05-22 EIN1LH SNN → JFK May 22, 13:40 UTCMay 22, 20:05 UTC6h 25m
2026-05-22 EIN144 BOS → SNN May 22, 04:15 UTCMay 22, 09:10 UTC4h 55m
2026-05-21 EIN139 DUB → BOS May 21, 19:00 UTCMay 22, 01:30 UTC6h 30m
2026-05-21 EIN138 BOS → DUB May 21, 05:20 UTCMay 21, 10:50 UTC5h 30m
2026-05-20 EIN1AC SNN → BOS May 20, 12:45 UTCMay 20, 19:10 UTC6h 25m
2026-05-20 EIN381 LHR → SNN May 20, 09:20 UTCMay 20, 10:15 UTC55m
2026-05-20 EIN38A SNN → LHR May 20, 06:55 UTCMay 20, 08:00 UTC1h 5m
2026-05-19 EIN1YL BOS → SNN May 19, 23:00 UTCMay 20, 04:30 UTC5h 30m
2026-05-19 EIN1AC SNN → BOS May 19, 12:55 UTCMay 19, 19:05 UTC6h 10m
2026-05-19 EIN991 LIN → DUB May 19, 09:05 UTCMay 19, 09:30 UTC25m
2026-05-19 EIN9LT CLE → DUB May 19, 00:20 UTCMay 19, 07:05 UTC6h 45m
2026-05-18 EIN9AR DUB → CLE May 18, 15:00 UTCMay 18, 22:05 UTC7h 4m
2026-05-18 EIN1XG PHL → DUB May 18, 00:45 UTCMay 18, 06:55 UTC6h 10m
2026-05-17 EIN1XL DUB → PHL May 17, 15:45 UTCMay 17, 22:50 UTC7h 5m
2026-05-17 EIN3GM MUC → DUB May 17, 09:35 UTCMay 17, 11:35 UTC2h 0m
2026-05-17 EIN3KM DUB → MUC May 17, 06:35 UTCMay 17, 08:35 UTC2h 0m
2026-05-16 EIN1PR BDL → DUB May 16, 22:10 UTCMay 17, 03:45 UTC5h 35m
2026-05-16 EIN13X DUB → BDL May 16, 13:51 UTCMay 16, 20:30 UTC6h 40m
2026-05-16 EIN108 JFK → DUB May 16, 04:10 UTCMay 16, 10:05 UTC5h 56m
2026-05-15 EIN109 DUB → JFK May 15, 18:55 UTCMay 16, 01:35 UTC6h 40m
2026-05-15 EIN6CE VIE → DUB May 15, 10:00 UTCMay 15, 12:15 UTC2h 15m
2026-05-15 EIN66V DUB → VIE May 15, 06:40 UTCMay 15, 09:00 UTC2h 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-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 3h ago.
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 EIN11T, EIN11P, EIN1PR, EIN1AC, EIN13X.