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sensors Mode-S transponder

4CAD7A

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-NSA · AIRBUS A-320neo

Hex
4CAD7A
Octal
23126572
Decimal
5,025,146
Country
IE
Tail
EI-NSA
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
589
Distinct callsigns
20
Country
IE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4CAD7A.

Country allocation

The ICAO 24-bit address 4CAD7A 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
EIN681 - 27 2026-07-14
EIN680 - 26 2026-07-14
EIN3YR - 25 2026-07-14
EIN38Y - 25 2026-07-14
EIN38W Aer Lingus 25 2026-07-14
EIN1HW - 24 2026-07-14
EIN159 - 24 2026-07-13
EIN151 - 24 2026-07-13
EIN388 - 23 2026-07-14
EIN169 Aer Lingus 23 2026-07-13
EIN15C - 23 2026-07-13
EIN183 - 22 2026-07-13
EIN182 - 22 2026-07-13
EIN168 - 22 2026-07-13
EIN1HL Aer Lingus 17 2026-07-04
EIN1YG Aer Lingus 16 2026-07-04
EIN1CM - 12 2026-07-11
EIN15M - 12 2026-07-11
EIN91W - 11 2026-06-30
EIN161 Aer Lingus 11 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EIN388 - Jul 14, 20:15 UTCJul 14, 21:20 UTC1h 5m
2026-07-14 EIN3YR - Jul 14, 18:25 UTCJul 14, 19:20 UTC55m
2026-07-14 EIN38Y - Jul 14, 16:00 UTCJul 14, 16:55 UTC55m
2026-07-14 EIN38W LHR → SNN Jul 14, 14:05 UTCJul 14, 14:55 UTC50m
2026-07-14 EIN1HW DUB → LHR Jul 14, 11:45 UTCJul 14, 12:35 UTC50m
2026-07-14 EIN681 - Jul 14, 08:30 UTCJul 14, 10:25 UTC1h 55m
2026-07-14 EIN680 DUB → GVA Jul 14, 05:45 UTCJul 14, 07:30 UTC1h 45m
2026-07-13 EIN183 LHR → DUB Jul 13, 20:30 UTCJul 13, 21:20 UTC50m
2026-07-13 EIN182 DUB → LHR Jul 13, 18:40 UTCJul 13, 19:30 UTC50m
2026-07-13 EIN169 LHR → DUB Jul 13, 17:00 UTCJul 13, 17:45 UTC45m
2026-07-13 EIN168 - Jul 13, 13:45 UTCJul 13, 14:45 UTC1h 0m
2026-07-13 EIN159 - Jul 13, 11:40 UTCJul 13, 12:30 UTC50m
2026-07-13 EIN15C DUB → LHR Jul 13, 09:00 UTCJul 13, 10:00 UTC1h 0m
2026-07-13 EIN151 - Jul 13, 06:55 UTCJul 13, 07:55 UTC1h 0m
2026-07-12 EIN388 - Jul 12, 20:35 UTCJul 12, 21:35 UTC1h 0m
2026-07-12 EIN3YR - Jul 12, 18:55 UTCJul 12, 19:45 UTC50m
2026-07-12 EIN38Y - Jul 12, 15:55 UTCJul 12, 16:55 UTC1h 0m
2026-07-12 EIN38W LHR → SNN Jul 12, 14:01 UTCJul 12, 14:55 UTC55m
2026-07-12 EIN1HW DUB → LHR Jul 12, 11:50 UTCJul 12, 12:35 UTC45m
2026-07-12 EIN681 GVA → DUB Jul 12, 08:30 UTCJul 12, 10:25 UTC1h 55m
2026-07-12 EIN680 DUB → GVA Jul 12, 05:45 UTCJul 12, 07:25 UTC1h 40m
2026-07-11 EIN497 FAO → DUB Jul 11, 18:55 UTCJul 11, 21:20 UTC2h 25m
2026-07-11 EIN496 DUB → FAO Jul 11, 15:30 UTCJul 11, 18:00 UTC2h 30m
2026-07-11 EIN16C LHR → DUB Jul 11, 12:45 UTCJul 11, 13:45 UTC1h 0m
2026-07-11 EIN1XT DUB → LHR Jul 11, 10:35 UTCJul 11, 11:25 UTC50m
2026-07-11 EIN15M LHR → DUB Jul 11, 08:10 UTCJul 11, 09:00 UTC50m
2026-07-11 EIN1CM - Jul 11, 05:50 UTCJul 11, 06:55 UTC1h 5m
2026-07-10 EIN183 - Jul 10, 20:35 UTCJul 10, 21:25 UTC50m
2026-07-10 EIN182 DUB → LHR Jul 10, 18:25 UTCJul 10, 19:35 UTC1h 10m
2026-07-10 EIN169 LHR → DUB Jul 10, 16:25 UTCJul 10, 17:15 UTC50m
2026-07-10 EIN168 DUB → LHR Jul 10, 13:55 UTCJul 10, 15:00 UTC1h 5m
2026-07-10 EIN159 - Jul 10, 11:50 UTCJul 10, 12:40 UTC50m
2026-07-10 EIN15C DUB → LHR Jul 10, 09:00 UTCJul 10, 09:55 UTC55m
2026-07-10 EIN151 LHR → DUB Jul 10, 06:55 UTCJul 10, 07:50 UTC55m
2026-07-09 EIN388 - Jul 9, 20:15 UTCJul 9, 21:10 UTC55m
2026-07-09 EIN3YR - Jul 9, 18:20 UTCJul 9, 19:15 UTC55m
2026-07-09 EIN38Y - Jul 9, 15:55 UTCJul 9, 16:50 UTC55m
2026-07-09 EIN38W LHR → SNN Jul 9, 14:10 UTCJul 9, 15:00 UTC50m
2026-07-09 EIN1HW DUB → LHR Jul 9, 11:40 UTCJul 9, 12:40 UTC1h 0m
2026-07-09 EIN681 GVA → DUB Jul 9, 08:25 UTCJul 9, 10:15 UTC1h 50m
2026-07-09 EIN680 DUB → GVA Jul 9, 05:35 UTCJul 9, 07:25 UTC1h 50m
2026-07-08 EIN183 - Jul 8, 20:20 UTCJul 8, 21:05 UTC45m
2026-07-08 EIN182 DUB → LHR Jul 8, 18:35 UTCJul 8, 19:25 UTC50m
2026-07-08 EIN169 LHR → DUB Jul 8, 16:00 UTCJul 8, 16:50 UTC50m
2026-07-08 EIN168 - Jul 8, 13:50 UTCJul 8, 14:55 UTC1h 5m
2026-07-08 EIN159 - Jul 8, 11:05 UTCJul 8, 11:55 UTC50m
2026-07-08 EIN15C DUB → LHR Jul 8, 08:50 UTCJul 8, 10:00 UTC1h 10m
2026-07-08 EIN151 - Jul 8, 06:55 UTCJul 8, 07:40 UTC45m
2026-07-07 EIN388 - Jul 7, 20:20 UTCJul 7, 21:15 UTC55m
2026-07-07 EIN3YR - Jul 7, 18:25 UTCJul 7, 19:20 UTC55m

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

Mode-S 4CAD7A frequently asked

What is Mode-S code 4CAD7A?
4CAD7A is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-NSA.
Where is Mode-S 4CAD7A registered?
Mode-S code 4CAD7A is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD7A 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 4CAD7A, octal 23126572, decimal 5,025,146.
What flights does 4CAD7A operate?
Mode-S 4CAD7A has broadcast 20 distinct callsigns, including EIN681, EIN680, EIN3YR, EIN38Y, EIN38W.