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sensors Mode-S transponder

4CAE31

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAE31
Octal
23127061
Decimal
5,025,329
Country
IE
Tail
EI-XLT
Type
A21N
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
334
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 4CAE31.

Country allocation

The ICAO 24-bit address 4CAE31 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
EIN988 Aer Lingus 22 2026-07-19
EIN989 - 19 2026-07-19
EIN205 - 17 2026-07-19
EIN204 - 17 2026-07-19
EIN976 - 14 2026-07-17
EIN11T - 14 2026-07-25
EIN11P Aer Lingus 14 2026-07-25
EIN9WM Aer Lingus 13 2026-07-25
EIN9KN Aer Lingus 13 2026-07-24
EIN977 - 13 2026-07-16
EIN525 - 11 2026-07-20
EIN524 - 11 2026-07-20
EIN9HW - 9 2026-07-14
EIN9CJ - 9 2026-07-13
EIN9LT Aer Lingus 8 2026-07-21
EIN9AR Aer Lingus 8 2026-07-20
EIN109 - 8 2026-07-21
EIN108 Aer Lingus 8 2026-07-22
EIN60T - 7 2026-07-08
EIN605P - 7 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN1XL DUB → PHL Jul 26, 15:45 UTCJul 26, 22:15 UTC6h 30m
2026-07-26 EIN3GM MUC → DUB Jul 26, 09:45 UTCJul 26, 11:55 UTC2h 10m
2026-07-26 EIN3KM DUB → MUC Jul 26, 06:40 UTCJul 26, 08:30 UTC1h 50m
2026-07-25 EIN11P IAD → DUB Jul 25, 21:10 UTCJul 26, 03:20 UTC6h 10m
2026-07-25 EIN11T DUB → IAD Jul 25, 11:55 UTCJul 25, 19:05 UTC7h 10m
2026-07-25 EIN9WM IND → DUB Jul 25, 00:05 UTCJul 25, 06:55 UTC6h 50m
2026-07-24 EIN9KN DUB → IND Jul 24, 19:20 UTCJul 24, 22:00 UTC2h 40m
2026-07-24 EIN9KN DUB → IND Jul 24, 14:10 UTCJul 24, 19:15 UTC5h 5m
2026-07-24 EIN5DR CDG → DUB Jul 24, 09:45 UTCJul 24, 11:00 UTC1h 15m
2026-07-24 EIN522 DUB → CDG Jul 24, 07:10 UTCJul 24, 08:25 UTC1h 15m
2026-07-23 EIN627 OSL → DUB Jul 23, 12:35 UTCJul 23, 14:30 UTC1h 55m
2026-07-23 EIN626 DUB → OSL Jul 23, 09:50 UTCJul 23, 11:35 UTC1h 45m
2026-07-23 EIN118 IAD → DUB Jul 23, 01:15 UTCJul 23, 07:25 UTC6h 10m
2026-07-22 EIN119 DUB → IAD Jul 22, 15:55 UTCJul 22, 23:20 UTC7h 25m
2026-07-22 EIN108 JFK → DUB Jul 22, 04:15 UTCJul 22, 05:25 UTC1h 10m
2026-07-21 EIN109 DUB → JFK Jul 21, 19:05 UTCJul 22, 02:00 UTC6h 55m
2026-07-21 EIN42C VCE → DUB Jul 21, 14:20 UTCJul 21, 16:45 UTC2h 25m
2026-07-21 EIN42M DUB → VCE Jul 21, 10:45 UTCJul 21, 13:10 UTC2h 25m
2026-07-21 EIN9LT CLE → DUB Jul 21, 00:35 UTCJul 21, 07:05 UTC6h 30m
2026-07-20 EIN9AR DUB → CLE Jul 20, 15:35 UTCJul 20, 22:40 UTC7h 5m
2026-07-20 EIN525 - Jul 20, 11:45 UTCJul 20, 13:00 UTC1h 15m
2026-07-20 EIN524 - Jul 20, 09:05 UTCJul 20, 10:20 UTC1h 15m
2026-07-19 EIN988 MSP → DUB Jul 19, 23:40 UTCJul 20, 07:05 UTC7h 25m
2026-07-19 EIN989 DUB → MSP Jul 19, 14:15 UTCJul 19, 21:50 UTC7h 35m
2026-07-19 EIN205 MAN → DUB Jul 19, 11:40 UTCJul 19, 12:20 UTC40m
2026-07-19 EIN204 DUB → MAN Jul 19, 09:30 UTCJul 19, 10:00 UTC30m
2026-07-19 EIN9LT CLE → DUB Jul 19, 00:15 UTCJul 19, 06:50 UTC6h 35m
2026-07-18 EIN9AR - Jul 18, 14:55 UTCJul 18, 22:20 UTC7h 25m
2026-07-18 EIN205 MAN → DUB Jul 18, 11:50 UTCJul 18, 12:30 UTC40m
2026-07-18 EIN204 DUB → MAN Jul 18, 09:25 UTCJul 18, 10:00 UTC35m
2026-07-17 EIN9WM - Jul 17, 23:55 UTCJul 18, 07:00 UTC7h 6m
2026-07-17 EIN9KN - Jul 17, 14:20 UTCJul 17, 21:55 UTC7h 35m
2026-07-17 EIN976 BNA → DUB Jul 17, 00:40 UTCJul 17, 08:04 UTC7h 25m
2026-07-16 EIN977 DUB → BNA Jul 16, 13:54 UTCJul 16, 22:05 UTC8h 10m
2026-07-16 EIN52X - Jul 16, 08:50 UTCJul 16, 10:15 UTC1h 25m
2026-07-16 EIN52A DUB → CDG Jul 16, 06:20 UTCJul 16, 07:35 UTC1h 15m
2026-07-15 EIN11P IAD → DUB Jul 15, 21:45 UTCJul 16, 04:20 UTC6h 35m
2026-07-15 EIN11T DUB → IAD Jul 15, 12:20 UTCJul 15, 19:50 UTC7h 30m
2026-07-15 EIN988 - Jul 15, 01:00 UTCJul 15, 08:25 UTC7h 25m
2026-07-14 EIN989 DUB → MSP Jul 14, 13:55 UTCJul 14, 21:30 UTC7h 35m
2026-07-14 EIN205 MAN → DUB Jul 14, 11:00 UTCJul 14, 11:35 UTC35m
2026-07-14 EIN204 DUB → MAN Jul 14, 09:20 UTCJul 14, 09:55 UTC35m
2026-07-14 EIN9HW - Jul 14, 00:40 UTCJul 14, 07:40 UTC7h 0m
2026-07-13 EIN9CJ DUB → RDU Jul 13, 15:30 UTCJul 13, 22:55 UTC7h 25m
2026-07-12 EIN976 BNA → DUB Jul 12, 23:50 UTCJul 13, 07:25 UTC7h 35m
2026-07-12 EIN977 DUB → BNA Jul 12, 13:25 UTCJul 12, 21:25 UTC8h 0m
2026-07-12 EIN976 - Jul 12, 00:10 UTCJul 12, 07:25 UTC7h 15m
2026-07-11 EIN977 DUB → BNA Jul 11, 13:45 UTCJul 11, 22:15 UTC8h 30m
2026-07-10 EIN9WM IND → DUB Jul 10, 23:50 UTCJul 11, 06:45 UTC6h 55m
2026-07-10 EIN9KN DUB → IND Jul 10, 14:15 UTCJul 10, 22:10 UTC7h 55m

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

Mode-S 4CAE31 frequently asked

What is Mode-S code 4CAE31?
4CAE31 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-XLT.
Where is Mode-S 4CAE31 registered?
Mode-S code 4CAE31 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE31 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE31, octal 23127061, decimal 5,025,329.
What flights does 4CAE31 operate?
Mode-S 4CAE31 has broadcast 20 distinct callsigns, including EIN988, EIN989, EIN205, EIN204, EIN976.