Apparatus

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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 EIN5YP · 12,450 ft
Flights observed
295
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

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
EIN159 Aer Lingus 11 2026-05-29
EIN3YR Aer Lingus 10 2026-05-28
EIN1HL Aer Lingus 10 2026-05-27
EIN169 Aer Lingus 10 2026-05-29
EIN15C Aer Lingus 10 2026-05-29
EIN151 Aer Lingus 10 2026-05-29
EIN38Y Aer Lingus 9 2026-05-28
EIN38W Aer Lingus 9 2026-05-28
EIN388 Aer Lingus 9 2026-05-28
EIN1YG Aer Lingus 9 2026-05-27
EIN1HW Aer Lingus 9 2026-05-28
EIN183 Aer Lingus 9 2026-05-29
EIN182 Aer Lingus 9 2026-05-29
EIN168 Aer Lingus 9 2026-05-29
EIN91W Aer Lingus 8 2026-05-27
EIN681 Aer Lingus 8 2026-05-30
EIN680 Aer Lingus 8 2026-05-30
EIN9AL Aer Lingus 7 2026-05-27
EIN77C Aer Lingus 7 2026-05-23
EIN1CM Aer Lingus 7 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EIN5NP DUB → NTE May 30, 11:40 UTCMay 30, 12:30 UTC50m
2026-05-30 EIN681 GVA → DUB May 30, 08:35 UTCMay 30, 10:20 UTC1h 45m
2026-05-30 EIN680 DUB → GVA May 30, 05:40 UTCMay 30, 07:25 UTC1h 45m
2026-05-29 EIN183 LHR → DUB May 29, 20:35 UTCMay 29, 21:15 UTC40m
2026-05-29 EIN182 DUB → LHR May 29, 18:25 UTCMay 29, 19:15 UTC50m
2026-05-29 EIN169 LHR → DUB May 29, 16:15 UTCMay 29, 17:00 UTC45m
2026-05-29 EIN168 DUB → LHR May 29, 13:55 UTCMay 29, 14:55 UTC1h 0m
2026-05-29 EIN159 LHR → DUB May 29, 11:25 UTCMay 29, 12:25 UTC1h 0m
2026-05-29 EIN15C DUB → LHR May 29, 09:05 UTCMay 29, 10:15 UTC1h 10m
2026-05-29 EIN151 LHR → DUB May 29, 07:00 UTCMay 29, 07:55 UTC55m
2026-05-28 EIN388 SNN → LHR May 28, 20:40 UTCMay 28, 21:40 UTC1h 0m
2026-05-28 EIN3YR LHR → SNN May 28, 19:00 UTCMay 28, 19:55 UTC55m
2026-05-28 EIN38Y SNN → LHR May 28, 16:40 UTCMay 28, 17:50 UTC1h 10m
2026-05-28 EIN38W LHR → SNN May 28, 14:45 UTCMay 28, 15:35 UTC50m
2026-05-28 EIN1HW DUB → LHR May 28, 12:15 UTCMay 28, 13:25 UTC1h 10m
2026-05-28 EIN681 GVA → DUB May 28, 08:30 UTCMay 28, 10:30 UTC2h 0m
2026-05-28 EIN680 DUB → GVA May 28, 05:40 UTCMay 28, 07:25 UTC1h 45m
2026-05-27 EIN1YG LHR → DUB May 27, 19:20 UTCMay 27, 20:05 UTC45m
2026-05-27 EIN1HL DUB → LHR May 27, 17:00 UTCMay 27, 18:10 UTC1h 10m
2026-05-27 EIN161 LHR → DUB May 27, 14:30 UTCMay 27, 15:30 UTC1h 0m
2026-05-27 EIN9AL NOC → LHR May 27, 12:15 UTCMay 27, 13:20 UTC1h 5m
2026-05-27 EIN91W LGW → NOC May 27, 10:20 UTCMay 27, 11:20 UTC1h 0m
2026-05-27 EIN156 DUB → LHR May 27, 07:55 UTCMay 27, 08:45 UTC50m
2026-05-26 EIN4RL LIS → DUB May 26, 21:40 UTCMay 26, 23:49 UTC2h 10m
2026-05-26 EIN4PT DUB → LIS May 26, 18:05 UTCMay 26, 20:29 UTC2h 25m
2026-05-26 EIN16T LHR → DUB May 26, 15:09 UTCMay 26, 16:00 UTC50m
2026-05-26 EIN16Y DUB → LHR May 26, 13:04 UTCMay 26, 13:54 UTC50m
2026-05-26 EIN5WG BCN → DUB May 26, 09:40 UTCMay 26, 11:44 UTC2h 5m
2026-05-26 EIN5HJ DUB → BCN May 26, 06:04 UTCMay 26, 08:10 UTC2h 5m
2026-05-25 EIN173 LHR → DUB May 25, 17:45 UTCMay 25, 18:35 UTC50m
2026-05-25 EIN172 DUB → LHR May 25, 15:35 UTCMay 25, 16:30 UTC55m
2026-05-25 EIN16C LHR → DUB May 25, 12:55 UTCMay 25, 13:45 UTC50m
2026-05-25 EIN1XT DUB → LHR May 25, 10:45 UTCMay 25, 11:45 UTC1h 0m
2026-05-25 EIN15M LHR → DUB May 25, 08:10 UTCMay 25, 09:00 UTC50m
2026-05-25 EIN1CM DUB → LHR May 25, 05:50 UTCMay 25, 06:50 UTC1h 0m
2026-05-24 EIN3LG MUC → DUB May 24, 19:00 UTCMay 24, 21:00 UTC2h 0m
2026-05-24 EIN3LK DUB → MUC May 24, 16:10 UTCMay 24, 18:05 UTC1h 55m
2026-05-24 EIN165 LHR → DUB May 24, 13:40 UTCMay 24, 14:35 UTC55m
2026-05-24 EIN164 DUB → LHR May 24, 11:10 UTCMay 24, 12:00 UTC50m
2026-05-24 EIN1LK LHR → DUB May 24, 09:05 UTCMay 24, 09:50 UTC45m
2026-05-24 EIN15E DUB → LHR May 24, 06:50 UTCMay 24, 07:45 UTC55m
2026-05-23 EIN7VT ACE → DUB May 23, 20:45 UTCMay 24, 00:20 UTC3h 35m
2026-05-23 EIN77C DUB → ACE May 23, 15:40 UTCMay 23, 19:35 UTC3h 55m
2026-05-23 EIN42W VCE → DUB May 23, 10:50 UTCMay 23, 13:05 UTC2h 15m
2026-05-23 EIN4CE DUB → VCE May 23, 07:15 UTCMay 23, 09:30 UTC2h 15m
2026-05-22 EIN183 LHR → DUB May 22, 21:00 UTCMay 22, 21:45 UTC45m
2026-05-22 EIN182 DUB → LHR May 22, 18:35 UTCMay 22, 19:40 UTC1h 5m
2026-05-22 EIN169 LHR → DUB May 22, 16:15 UTCMay 22, 17:05 UTC50m
2026-05-22 EIN168 DUB → LHR May 22, 14:00 UTCMay 22, 15:00 UTC1h 0m
2026-05-22 EIN159 LHR → DUB May 22, 11:30 UTCMay 22, 12:15 UTC45m

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 EIN159, EIN3YR, EIN1HL, EIN169, EIN15C.