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sensors Mode-S transponder

4CA5C6

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DUO · AIRBUS A-330-200

Hex
4CA5C6
Octal
23122706
Decimal
5,023,174
Country
IE
Tail
EI-DUO
Type
A332
No current signal · last broadcast 2h ago
Flights observed
156
Distinct callsigns
11
Country
IE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4CA5C6.

Country allocation

The ICAO 24-bit address 4CA5C6 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 11 distinct

Callsign Airline Flights Last seen
EIN953 - 69 2026-07-12
EIN952 - 66 2026-07-13
EIN9CX - 4 2026-07-14
EIN143 Aer Lingus 3 2026-04-24
EIN142 Aer Lingus 3 2026-04-25
EIN9PM - 2 2026-07-13
EIN9MR Aer Lingus 2 2026-04-26
EIN9DM Aer Lingus 2 2026-04-25
EIN119 - 2 2026-07-10
EIN118 - 2 2026-07-11
EIN992 Aer Lingus 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EIN9CX - Jul 14, 02:05 UTCJul 14, 04:15 UTC2h 10m
2026-07-13 EIN9PM DUB → DEN Jul 13, 14:40 UTCJul 13, 23:20 UTC8h 40m
2026-07-13 EIN952 SEA → DUB Jul 13, 02:50 UTCJul 13, 11:10 UTC8h 20m
2026-07-12 EIN953 DUB → SEA Jul 12, 15:10 UTCJul 13, 00:35 UTC9h 25m
2026-07-12 EIN952 - Jul 12, 02:50 UTCJul 12, 11:15 UTC8h 25m
2026-07-11 EIN953 DUB → SEA Jul 11, 15:15 UTCJul 12, 00:35 UTC9h 20m
2026-07-11 EIN118 IAD → DUB Jul 11, 01:30 UTCJul 11, 07:40 UTC6h 10m
2026-07-10 EIN119 DUB → IAD Jul 10, 15:50 UTCJul 10, 23:40 UTC7h 50m
2026-07-09 EIN118 IAD → DUB Jul 9, 01:05 UTCJul 9, 07:25 UTC6h 20m
2026-07-08 EIN119 DUB → IAD Jul 8, 15:55 UTCJul 8, 23:00 UTC7h 5m
2026-07-08 EIN952 SEA → DUB Jul 8, 02:20 UTCJul 8, 11:05 UTC8h 45m
2026-07-07 EIN953 DUB → SEA Jul 7, 14:55 UTCJul 8, 00:00 UTC9h 5m
2026-07-07 EIN952 SEA → DUB Jul 7, 02:25 UTCJul 7, 10:40 UTC8h 15m
2026-07-06 EIN953 DUB → SEA Jul 6, 15:05 UTCJul 7, 00:15 UTC9h 10m
2026-07-06 EIN9CX DEN → DUB Jul 6, 02:10 UTCJul 6, 10:10 UTC8h 0m
2026-07-05 EIN9PM - Jul 5, 14:45 UTCJul 5, 23:30 UTC8h 45m
2026-07-05 EIN952 SEA → DUB Jul 5, 02:05 UTCJul 5, 10:40 UTC8h 35m
2026-07-04 EIN953 DUB → SEA Jul 4, 14:40 UTCJul 4, 23:55 UTC9h 15m
2026-07-04 EIN952 SEA → DUB Jul 4, 02:50 UTCJul 4, 11:35 UTC8h 45m
2026-07-03 EIN953 DUB → SEA Jul 3, 15:00 UTCJul 4, 00:00 UTC9h 0m
2026-07-03 EIN952 SEA → DUB Jul 3, 02:15 UTCJul 3, 10:45 UTC8h 30m
2026-07-02 EIN953 DUB → SEA Jul 2, 14:50 UTCJul 3, 00:00 UTC9h 10m
2026-07-02 EIN952 SEA → DUB Jul 2, 02:20 UTCJul 2, 11:00 UTC8h 40m
2026-07-01 EIN953 DUB → SEA Jul 1, 15:20 UTCJul 2, 00:10 UTC8h 50m
2026-07-01 EIN952 SEA → DUB Jul 1, 02:20 UTCJul 1, 11:00 UTC8h 40m
2026-06-30 EIN953 DUB → SEA Jun 30, 14:50 UTCJun 30, 23:45 UTC8h 55m
2026-06-30 EIN952 SEA → DUB Jun 30, 02:35 UTCJun 30, 11:05 UTC8h 30m
2026-06-29 EIN953 DUB → SEA Jun 29, 14:54 UTCJun 30, 00:00 UTC9h 5m
2026-06-29 EIN952 SEA → DUB Jun 29, 02:09 UTCJun 29, 10:44 UTC8h 35m
2026-06-28 EIN953 DUB → SEA Jun 28, 14:54 UTCJun 28, 23:29 UTC8h 35m
2026-06-28 EIN952 - Jun 28, 02:14 UTCJun 28, 10:50 UTC8h 35m
2026-06-27 EIN953 DUB → SEA Jun 27, 15:00 UTCJun 27, 23:39 UTC8h 40m
2026-06-27 EIN952 - Jun 27, 02:35 UTCJun 27, 11:09 UTC8h 35m
2026-06-26 EIN953 DUB → SEA Jun 26, 14:39 UTCJun 26, 23:34 UTC8h 55m
2026-06-26 EIN952 - Jun 26, 02:40 UTCJun 26, 11:20 UTC8h 40m
2026-06-25 EIN953 DUB → SEA Jun 25, 14:50 UTCJun 25, 23:39 UTC8h 50m
2026-06-25 EIN952 - Jun 25, 02:19 UTCJun 25, 11:10 UTC8h 50m
2026-06-24 EIN953 DUB → SEA Jun 24, 15:24 UTCJun 25, 00:14 UTC8h 50m
2026-06-24 EIN952 - Jun 24, 02:24 UTCJun 24, 11:05 UTC8h 40m
2026-06-23 EIN953 DUB → SEA Jun 23, 14:44 UTCJun 23, 23:39 UTC8h 55m
2026-06-23 EIN952 - Jun 23, 02:24 UTCJun 23, 10:55 UTC8h 30m
2026-06-22 EIN953 DUB → SEA Jun 22, 14:55 UTCJun 22, 23:45 UTC8h 50m
2026-06-22 EIN952 - Jun 22, 02:25 UTCJun 22, 11:04 UTC8h 40m
2026-06-21 EIN953 DUB → SEA Jun 21, 14:40 UTCJun 21, 23:34 UTC8h 55m
2026-06-20 EIN952 - Jun 20, 02:40 UTCJun 20, 11:09 UTC8h 30m
2026-06-19 EIN953 DUB → SEA Jun 19, 14:49 UTCJun 19, 23:39 UTC8h 50m
2026-06-19 EIN952 BFI → DUB Jun 19, 02:50 UTCJun 19, 11:24 UTC8h 35m
2026-06-18 EIN953 DUB → SEA Jun 18, 14:50 UTCJun 18, 23:40 UTC8h 50m
2026-06-18 EIN952 BFI → DUB Jun 18, 02:25 UTCJun 18, 11:05 UTC8h 40m
2026-06-17 EIN953 - Jun 17, 15:00 UTCJun 17, 23:50 UTC8h 50m

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

Mode-S 4CA5C6 frequently asked

What is Mode-S code 4CA5C6?
4CA5C6 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DUO.
Where is Mode-S 4CA5C6 registered?
Mode-S code 4CA5C6 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA5C6 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA5C6, octal 23122706, decimal 5,023,174.
What flights does 4CA5C6 operate?
Mode-S 4CA5C6 has broadcast 11 distinct callsigns, including EIN953, EIN952, EIN9CX, EIN143, EIN142.