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sensors Mode-S transponder

4CA2C9

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DEP · AIRBUS A-320

Hex
4CA2C9
Octal
23121311
Decimal
5,022,409
Country
IE
Tail
EI-DEP
Type
A320
No current signal · last broadcast 6h ago
Flights observed
420
Distinct callsigns
20
Country
IE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4CA2C9.

Country allocation

The ICAO 24-bit address 4CA2C9 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
EIN6AP - 10 2026-07-10
EIN63N - 10 2026-07-10
EIN60Y Aer Lingus 7 2026-05-10
EIN4MK - 7 2026-06-30
EIN4EK - 7 2026-06-30
EIN45N - 7 2026-07-13
EIN69L Aer Lingus 6 2026-06-11
EIN65T - 6 2026-07-01
EIN65A - 6 2026-07-01
EIN643 - 6 2026-07-05
EIN642 - 6 2026-07-05
EIN4WL - 6 2026-06-27
EIN4TH - 6 2026-07-08
EIN4RN Aer Lingus 6 2026-06-15
EIN4HW - 6 2026-06-15
EIN4GC - 6 2026-06-27
EIN49J - 6 2026-07-02
EIN49D - 6 2026-07-02
EIN45F - 6 2026-07-13
EIN40R - 6 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EIN5XL - Jul 14, 19:45 UTCJul 14, 22:10 UTC2h 25m
2026-07-14 EIN574 DUB → ALC Jul 14, 15:55 UTCJul 14, 18:30 UTC2h 35m
2026-07-14 EIN505 BOD → DUB Jul 14, 13:00 UTCJul 14, 14:35 UTC1h 35m
2026-07-14 EIN504 - Jul 14, 09:50 UTCJul 14, 11:20 UTC1h 30m
2026-07-14 EIN2CJ - Jul 14, 07:50 UTCJul 14, 08:25 UTC35m
2026-07-14 EIN2MW DUB → MAN Jul 14, 06:00 UTCJul 14, 06:30 UTC30m
2026-07-13 EIN76H - Jul 13, 21:25 UTCJul 14, 00:50 UTC3h 25m
2026-07-13 EIN76K - Jul 13, 18:05 UTCJul 13, 19:45 UTC1h 40m
2026-07-13 EIN76K DUB → FAO Jul 13, 14:45 UTCJul 13, 17:20 UTC2h 35m
2026-07-13 EIN45N - Jul 13, 10:10 UTCJul 13, 13:10 UTC3h 0m
2026-07-13 EIN45F - Jul 13, 05:25 UTCJul 13, 08:05 UTC2h 40m
2026-07-12 EIN63K BRU → DUB Jul 12, 19:55 UTCJul 12, 21:15 UTC1h 20m
2026-07-12 EIN63J DUB → BRU Jul 12, 17:40 UTCJul 12, 18:50 UTC1h 10m
2026-07-12 EIN16T - Jul 12, 15:45 UTCJul 12, 16:35 UTC50m
2026-07-12 EIN16Y DUB → LHR Jul 12, 13:15 UTCJul 12, 14:15 UTC1h 0m
2026-07-10 EIN68R - Jul 10, 15:15 UTCJul 10, 17:05 UTC1h 50m
2026-07-10 EIN68Y DUB → GVA Jul 10, 12:30 UTCJul 10, 14:15 UTC1h 45m
2026-07-10 EIN6AP - Jul 10, 08:55 UTCJul 10, 10:20 UTC1h 25m
2026-07-10 EIN63N - Jul 10, 06:15 UTCJul 10, 07:35 UTC1h 20m
2026-07-09 EIN58K - Jul 9, 19:20 UTCJul 9, 21:55 UTC2h 35m
2026-07-09 EIN58G - Jul 9, 15:40 UTCJul 9, 18:15 UTC2h 35m
2026-07-09 EIN45N - Jul 9, 13:35 UTCJul 9, 14:20 UTC45m
2026-07-09 EIN45N - Jul 9, 11:30 UTCJul 9, 13:30 UTC2h 0m
2026-07-09 EIN45F - Jul 9, 05:40 UTCJul 9, 08:35 UTC2h 55m
2026-07-08 EIN7JC - Jul 8, 20:00 UTCJul 8, 23:40 UTC3h 40m
2026-07-08 EIN78L - Jul 8, 14:50 UTCJul 8, 18:45 UTC3h 55m
2026-07-08 EIN4TH - Jul 8, 09:50 UTCJul 8, 12:30 UTC2h 40m
2026-07-08 EIN40G - Jul 8, 05:30 UTCJul 8, 08:00 UTC2h 30m
2026-07-07 EIN459 BDS → DUB Jul 7, 18:45 UTCJul 7, 21:55 UTC3h 10m
2026-07-07 EIN458 DUB → BDS Jul 7, 14:50 UTCJul 7, 17:50 UTC3h 0m
2026-07-07 EIN6HR BUD → DUB Jul 7, 10:40 UTCJul 7, 13:30 UTC2h 50m
2026-07-07 EIN67T - Jul 7, 07:05 UTCJul 7, 09:30 UTC2h 25m
2026-07-06 EIN7JC LPA → DUB Jul 6, 20:30 UTCJul 7, 00:10 UTC3h 40m
2026-07-06 EIN78L - Jul 6, 15:20 UTCJul 6, 19:15 UTC3h 55m
2026-07-06 EIN4LK LIS → DUB Jul 6, 11:10 UTCJul 6, 13:20 UTC2h 10m
2026-07-06 EIN82T - Jul 6, 07:15 UTCJul 6, 09:40 UTC2h 25m
2026-07-05 EIN7VT - Jul 5, 20:05 UTCJul 5, 23:40 UTC3h 35m
2026-07-05 EIN77C - Jul 5, 14:20 UTCJul 5, 17:55 UTC3h 35m
2026-07-05 EIN643 PRG → DUB Jul 5, 10:05 UTCJul 5, 12:20 UTC2h 15m
2026-07-05 EIN642 DUB → PRG Jul 5, 07:05 UTCJul 5, 09:00 UTC1h 55m
2026-07-04 EIN58R - Jul 4, 20:35 UTCJul 4, 23:05 UTC2h 30m
2026-07-04 EIN588 - Jul 4, 16:55 UTCJul 4, 19:20 UTC2h 25m
2026-07-04 EIN7DM - Jul 4, 12:05 UTCJul 4, 15:45 UTC3h 40m
2026-07-04 EIN7PM - Jul 4, 06:50 UTCJul 4, 10:50 UTC4h 0m
2026-07-03 EIN497 FAO → DUB Jul 3, 19:00 UTCJul 3, 21:30 UTC2h 30m
2026-07-03 EIN496 DUB → FAO Jul 3, 15:30 UTCJul 3, 17:55 UTC2h 25m
2026-07-03 EIN45N - Jul 3, 10:25 UTCJul 3, 13:30 UTC3h 5m
2026-07-03 EIN45F - Jul 3, 05:45 UTCJul 3, 08:25 UTC2h 40m
2026-07-02 EIN49D FAO → DUB Jul 2, 15:15 UTCJul 2, 17:40 UTC2h 25m
2026-07-02 EIN49J DUB → FAO Jul 2, 11:55 UTCJul 2, 14:15 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-DEP page for operator, model, and routing details .

Mode-S 4CA2C9 frequently asked

What is Mode-S code 4CA2C9?
4CA2C9 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DEP.
Where is Mode-S 4CA2C9 registered?
Mode-S code 4CA2C9 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA2C9 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA2C9, octal 23121311, decimal 5,022,409.
What flights does 4CA2C9 operate?
Mode-S 4CA2C9 has broadcast 20 distinct callsigns, including EIN6AP, EIN63N, EIN60Y, EIN4MK, EIN4EK.