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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
Broadcasting now · callsign EIN680 · 2,025 ft
Flights observed
658
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:10 UTC

Current position

4CAD7A is currently broadcasting. Map zoomed to live position.

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 - 29 2026-07-21
EIN680 Aer Lingus 28 2026-07-21
EIN3YR - 26 2026-07-21
EIN38Y - 26 2026-07-21
EIN38W Aer Lingus 26 2026-07-21
EIN1HW - 25 2026-07-21
EIN169 - 25 2026-07-22
EIN159 - 25 2026-07-22
EIN151 - 25 2026-07-15
EIN388 - 24 2026-07-21
EIN183 - 24 2026-07-22
EIN182 - 24 2026-07-22
EIN168 - 24 2026-07-22
EIN15C - 23 2026-07-13
EIN1HL Aer Lingus 19 2026-07-24
EIN1YG Aer Lingus 18 2026-07-24
EIN1CM Aer Lingus 15 2026-07-23
EIN15M - 15 2026-07-23
EIN1XT - 13 2026-07-23
EIN16C Aer Lingus 13 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN3LG MUC → DUB Jul 26, 18:50 UTCJul 26, 21:05 UTC2h 15m
2026-07-26 EIN3LK DUB → MUC Jul 26, 15:45 UTCJul 26, 17:30 UTC1h 45m
2026-07-26 EIN165 LHR → DUB Jul 26, 13:30 UTCJul 26, 14:20 UTC50m
2026-07-26 EIN164 DUB → LHR Jul 26, 11:30 UTCJul 26, 12:15 UTC45m
2026-07-26 EIN1LK LHR → DUB Jul 26, 09:10 UTCJul 26, 10:10 UTC1h 0m
2026-07-26 EIN15E DUB → LHR Jul 26, 07:00 UTCJul 26, 07:55 UTC55m
2026-07-25 EIN499 FAO → DUB Jul 25, 21:55 UTCJul 26, 00:40 UTC2h 45m
2026-07-25 EIN498 DUB → FAO Jul 25, 18:20 UTCJul 25, 20:35 UTC2h 15m
2026-07-25 EIN498 DUB → FAO Jul 25, 18:10 UTCJul 25, 18:15 UTC5m
2026-07-25 EIN42W VCE → DUB Jul 25, 11:20 UTCJul 25, 13:35 UTC2h 15m
2026-07-25 EIN4CE DUB → VCE Jul 25, 07:50 UTCJul 25, 10:15 UTC2h 25m
2026-07-24 EIN1YG LHR → DUB Jul 24, 18:40 UTCJul 24, 19:30 UTC50m
2026-07-24 EIN1HL DUB → LHR Jul 24, 16:45 UTCJul 24, 17:40 UTC55m
2026-07-24 EIN161 LHR → DUB Jul 24, 14:25 UTCJul 24, 15:15 UTC50m
2026-07-24 EIN9AL NOC → LHR Jul 24, 12:20 UTCJul 24, 13:25 UTC1h 5m
2026-07-24 EIN91W - Jul 24, 10:30 UTCJul 24, 11:30 UTC1h 0m
2026-07-24 EIN156 DUB → LHR Jul 24, 07:55 UTCJul 24, 09:00 UTC1h 5m
2026-07-23 EIN173 - Jul 23, 17:25 UTCJul 23, 18:05 UTC40m
2026-07-23 EIN172 DUB → LHR Jul 23, 15:25 UTCJul 23, 16:15 UTC50m
2026-07-23 EIN16C LHR → DUB Jul 23, 12:40 UTCJul 23, 13:25 UTC45m
2026-07-23 EIN1XT DUB → LHR Jul 23, 10:25 UTCJul 23, 11:15 UTC50m
2026-07-23 EIN15M - Jul 23, 08:10 UTCJul 23, 09:00 UTC50m
2026-07-23 EIN1CM DUB → LHR Jul 23, 05:55 UTCJul 23, 07:00 UTC1h 5m
2026-07-22 EIN183 - Jul 22, 20:30 UTCJul 22, 21:20 UTC50m
2026-07-22 EIN182 - Jul 22, 18:35 UTCJul 22, 19:25 UTC50m
2026-07-22 EIN169 - Jul 22, 16:40 UTCJul 22, 17:35 UTC55m
2026-07-22 EIN168 DUB → LHR Jul 22, 14:00 UTCJul 22, 15:00 UTC1h 0m
2026-07-22 EIN159 - Jul 22, 11:35 UTCJul 22, 12:20 UTC45m
2026-07-21 EIN388 - Jul 21, 20:05 UTCJul 21, 21:10 UTC1h 5m
2026-07-21 EIN3YR - Jul 21, 18:15 UTCJul 21, 19:10 UTC55m
2026-07-21 EIN38Y - Jul 21, 16:05 UTCJul 21, 17:05 UTC1h 0m
2026-07-21 EIN38W LHR → SNN Jul 21, 14:15 UTCJul 21, 15:15 UTC1h 0m
2026-07-21 EIN1HW DUB → LHR Jul 21, 11:35 UTCJul 21, 12:25 UTC50m
2026-07-21 EIN681 GVA → DUB Jul 21, 08:35 UTCJul 21, 10:25 UTC1h 50m
2026-07-21 EIN680 DUB → GVA Jul 21, 05:40 UTCJul 21, 07:25 UTC1h 45m
2026-07-20 EIN173 - Jul 20, 17:30 UTCJul 20, 18:15 UTC45m
2026-07-20 EIN172 DUB → LHR Jul 20, 15:10 UTCJul 20, 16:00 UTC50m
2026-07-20 EIN16C LHR → DUB Jul 20, 12:55 UTCJul 20, 13:45 UTC50m
2026-07-20 EIN1XT DUB → LHR Jul 20, 10:25 UTCJul 20, 11:30 UTC1h 5m
2026-07-20 EIN15M - Jul 20, 08:05 UTCJul 20, 09:00 UTC55m
2026-07-20 EIN1CM - Jul 20, 05:50 UTCJul 20, 06:45 UTC55m
2026-07-19 EIN173 - Jul 19, 17:55 UTCJul 19, 18:45 UTC50m
2026-07-19 EIN172 DUB → LHR Jul 19, 15:15 UTCJul 19, 16:15 UTC1h 0m
2026-07-19 EIN16C LHR → DUB Jul 19, 12:45 UTCJul 19, 13:50 UTC1h 5m
2026-07-19 EIN1XT - Jul 19, 10:30 UTCJul 19, 11:25 UTC55m
2026-07-19 EIN15M LHR → DUB Jul 19, 07:55 UTCJul 19, 08:45 UTC50m
2026-07-19 EIN1CM - Jul 19, 05:50 UTCJul 19, 06:35 UTC45m
2026-07-18 EIN1YG LHR → DUB Jul 18, 18:30 UTCJul 18, 19:15 UTC45m
2026-07-18 EIN1HL DUB → LHR Jul 18, 16:40 UTCJul 18, 17:25 UTC45m
2026-07-18 EIN5YP - Jul 18, 14:10 UTCJul 18, 15:25 UTC1h 15m

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?
Yes. Mode-S 4CAD7A is currently airborne.
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.