Apparatus

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sensors Mode-S transponder

4CAE29

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAE29
Octal
23127051
Decimal
5,025,321
Country
IE
Tail
EI-XLR
Type
A21N
No current signal · last broadcast 3h ago
Flights observed
274
Distinct callsigns
20
Country
IE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4CAE29.

Country allocation

The ICAO 24-bit address 4CAE29 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
EIN977 - 24 2026-07-08
EIN976 - 22 2026-07-08
EIN9KN - 15 2026-07-11
EIN9CJ - 15 2026-07-12
EIN9WM - 14 2026-07-12
EIN9HW - 14 2026-07-13
EIN3KM - 9 2026-07-11
EIN11T - 8 2026-07-07
EIN11P - 8 2026-07-07
EIN989 - 7 2026-07-13
EIN988 - 7 2026-07-14
EIN3GM - 7 2026-07-11
EIN205 - 7 2026-07-12
EIN204 - 7 2026-07-12
EIN147 Aer Lingus 7 2026-05-31
EIN60T - 5 2026-07-02
EIN605P - 5 2026-07-02
EIN146 - 5 2026-05-22
EIN109 - 5 2026-07-05
EIN108 - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EIN988 MSP → DUB Jul 14, 00:15 UTCJul 14, 07:30 UTC7h 15m
2026-07-13 EIN989 DUB → MSP Jul 13, 15:00 UTCJul 13, 22:35 UTC7h 35m
2026-07-13 EIN9HW - Jul 13, 00:45 UTCJul 13, 07:35 UTC6h 50m
2026-07-12 EIN9CJ DUB → RDU Jul 12, 14:45 UTCJul 12, 22:10 UTC7h 25m
2026-07-12 EIN205 - Jul 12, 10:50 UTCJul 12, 11:30 UTC40m
2026-07-12 EIN204 DUB → MAN Jul 12, 09:20 UTCJul 12, 09:50 UTC30m
2026-07-12 EIN9WM IND → DUB Jul 12, 00:15 UTCJul 12, 07:31 UTC7h 15m
2026-07-11 EIN9KN DUB → IND Jul 11, 14:45 UTCJul 11, 22:20 UTC7h 35m
2026-07-11 EIN3GM MUC → DUB Jul 11, 10:15 UTCJul 11, 12:20 UTC2h 5m
2026-07-11 EIN3KM DUB → MUC Jul 11, 06:45 UTCJul 11, 08:35 UTC1h 50m
2026-07-10 EIN33W - Jul 10, 20:25 UTCJul 10, 22:15 UTC1h 50m
2026-07-10 EIN33T - Jul 10, 17:30 UTCJul 10, 19:20 UTC1h 50m
2026-07-10 EIN52X - Jul 10, 09:10 UTCJul 10, 10:35 UTC1h 25m
2026-07-10 EIN52A DUB → CDG Jul 10, 06:35 UTCJul 10, 07:50 UTC1h 15m
2026-07-09 EIN545 NCE → DUB Jul 9, 13:45 UTCJul 9, 16:05 UTC2h 20m
2026-07-09 EIN5TJ DUB → NCE Jul 9, 10:10 UTCJul 9, 12:20 UTC2h 10m
2026-07-08 EIN976 - Jul 8, 23:45 UTCJul 9, 07:20 UTC7h 35m
2026-07-08 EIN977 DUB → BNA Jul 8, 13:20 UTCJul 8, 21:50 UTC8h 30m
2026-07-07 EIN11P IAD → DUB Jul 7, 21:35 UTCJul 8, 03:50 UTC6h 15m
2026-07-07 EIN11T DUB → IAD Jul 7, 11:50 UTCJul 7, 18:45 UTC6h 55m
2026-07-07 EIN9HW - Jul 7, 01:25 UTCJul 7, 08:10 UTC6h 45m
2026-07-06 EIN9CJ DUB → RDU Jul 6, 14:55 UTCJul 6, 22:35 UTC7h 40m
2026-07-06 EIN108 JFK → DUB Jul 6, 05:50 UTCJul 6, 11:50 UTC6h 0m
2026-07-05 EIN109 - Jul 5, 19:05 UTCJul 6, 01:55 UTC6h 50m
2026-07-05 EIN42C VCE → DUB Jul 5, 14:05 UTCJul 5, 16:35 UTC2h 30m
2026-07-05 EIN42M DUB → VCE Jul 5, 10:35 UTCJul 5, 12:40 UTC2h 5m
2026-07-05 EIN9WM - Jul 5, 00:50 UTCJul 5, 07:25 UTC6h 35m
2026-07-04 EIN9KN DUB → IND Jul 4, 14:15 UTCJul 4, 22:10 UTC7h 55m
2026-07-04 EIN205 MAN → DUB Jul 4, 11:00 UTCJul 4, 11:40 UTC40m
2026-07-04 EIN204 DUB → MAN Jul 4, 09:10 UTCJul 4, 09:45 UTC35m
2026-07-04 EIN9WM - Jul 4, 00:05 UTCJul 4, 07:10 UTC7h 5m
2026-07-03 EIN9KN - Jul 3, 19:40 UTCJul 3, 22:05 UTC2h 25m
2026-07-03 EIN9KN - Jul 3, 14:05 UTCJul 3, 19:35 UTC5h 30m
2026-07-03 EIN9HW - Jul 3, 01:05 UTCJul 3, 07:50 UTC6h 45m
2026-07-02 EIN9CJ DUB → RDU Jul 2, 15:10 UTCJul 2, 23:15 UTC8h 5m
2026-07-02 EIN605P AMS → DUB Jul 2, 12:00 UTCJul 2, 13:20 UTC1h 20m
2026-07-02 EIN60T - Jul 2, 09:50 UTCJul 2, 10:45 UTC55m
2026-07-02 EIN1XG - Jul 2, 00:55 UTCJul 2, 07:10 UTC6h 15m
2026-07-01 EIN1XL - Jul 1, 15:55 UTCJul 1, 23:05 UTC7h 10m
2026-07-01 EIN205 MAN → DUB Jul 1, 11:25 UTCJul 1, 11:55 UTC30m
2026-07-01 EIN204 DUB → MAN Jul 1, 09:20 UTCJul 1, 09:55 UTC35m
2026-06-30 EIN988 MSP → DUB Jun 30, 23:55 UTCJul 1, 06:30 UTC6h 35m
2026-06-30 EIN989 - Jun 30, 13:55 UTCJun 30, 22:10 UTC8h 15m
2026-06-30 EIN205 MAN → DUB Jun 30, 11:05 UTCJun 30, 11:40 UTC35m
2026-06-30 EIN204 DUB → MAN Jun 30, 09:25 UTCJun 30, 10:00 UTC35m
2026-06-30 EIN9WM - Jun 30, 00:04 UTCJun 30, 07:10 UTC7h 6m
2026-06-29 EIN9KN DUB → IND Jun 29, 14:25 UTCJun 29, 22:05 UTC7h 40m
2026-06-29 EIN3GM - Jun 29, 10:04 UTCJun 29, 12:05 UTC2h 0m
2026-06-29 EIN3KM DUB → MUC Jun 29, 06:50 UTCJun 29, 08:50 UTC2h 0m
2026-06-28 EIN179 - Jun 28, 19:55 UTCJun 28, 20:45 UTC50m

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

Mode-S 4CAE29 frequently asked

What is Mode-S code 4CAE29?
4CAE29 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-XLR.
Where is Mode-S 4CAE29 registered?
Mode-S code 4CAE29 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE29 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 4CAE29, octal 23127051, decimal 5,025,321.
What flights does 4CAE29 operate?
Mode-S 4CAE29 has broadcast 20 distinct callsigns, including EIN977, EIN976, EIN9KN, EIN9CJ, EIN9WM.