Apparatus

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sensors Mode-S transponder

4CAD7D

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAD7D
Octal
23126575
Decimal
5,025,149
Country
IE
Tail
EI-NSD
Type
A20N
No current signal · last broadcast 7h ago
Flights observed
290
Distinct callsigns
20
Country
IE
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4CAD7D.

Country allocation

The ICAO 24-bit address 4CAD7D 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
EIN5WG Aer Lingus 12 2026-05-27
EIN5HJ Aer Lingus 12 2026-05-27
EIN3LG Aer Lingus 12 2026-05-25
EIN1LK Aer Lingus 12 2026-05-28
EIN15E Aer Lingus 12 2026-05-28
EIN3LK Aer Lingus 11 2026-05-25
EIN164 Aer Lingus 11 2026-05-28
EIN9AL Aer Lingus 10 2026-05-26
EIN91W Aer Lingus 10 2026-05-26
EIN1YG Aer Lingus 10 2026-05-22
EIN1HL Aer Lingus 10 2026-05-22
EIN165 Aer Lingus 10 2026-05-28
EIN161 Aer Lingus 10 2026-05-26
EIN156 Aer Lingus 10 2026-05-26
EIN16T Aer Lingus 8 2026-05-27
EIN1XT Aer Lingus 7 2026-05-17
EIN16Y Aer Lingus 7 2026-05-27
EIN16C Aer Lingus 7 2026-05-17
EIN173 Aer Lingus 6 2026-05-17
EIN172 Aer Lingus 6 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EIN388 SNN → LHR May 29, 20:15 UTCMay 29, 21:10 UTC55m
2026-05-29 EIN3YR LHR → SNN May 29, 18:25 UTCMay 29, 19:20 UTC55m
2026-05-29 EIN38Y SNN → LHR May 29, 15:55 UTCMay 29, 16:50 UTC55m
2026-05-29 EIN38W LHR → SNN May 29, 14:05 UTCMay 29, 15:00 UTC55m
2026-05-29 EIN1HW DUB → LHR May 29, 11:55 UTCMay 29, 12:50 UTC55m
2026-05-29 EIN503 RNS → DUB May 29, 09:10 UTCMay 29, 10:50 UTC1h 40m
2026-05-29 EIN50K DUB → BOD May 29, 06:35 UTCMay 29, 08:00 UTC1h 25m
2026-05-28 EIN3AV BOJ → DUB May 28, 20:35 UTCMay 29, 00:25 UTC3h 50m
2026-05-28 EIN37W DUB → BOJ May 28, 16:15 UTCMay 28, 19:35 UTC3h 20m
2026-05-28 EIN165 LHR → DUB May 28, 13:45 UTCMay 28, 14:35 UTC50m
2026-05-28 EIN164 DUB → LHR May 28, 11:25 UTCMay 28, 12:35 UTC1h 10m
2026-05-28 EIN1LK LHR → DUB May 28, 09:05 UTCMay 28, 10:00 UTC55m
2026-05-28 EIN15E DUB → LHR May 28, 06:50 UTCMay 28, 07:55 UTC1h 5m
2026-05-27 EIN611 AMS → DUB May 27, 20:00 UTCMay 27, 21:25 UTC1h 25m
2026-05-27 EIN61V DUB → AMS May 27, 18:00 UTCMay 27, 19:05 UTC1h 5m
2026-05-27 EIN16T LHR → DUB May 27, 15:40 UTCMay 27, 16:35 UTC55m
2026-05-27 EIN16Y DUB → LHR May 27, 13:10 UTCMay 27, 14:00 UTC50m
2026-05-27 EIN5WG BCN → DUB May 27, 09:30 UTCMay 27, 11:35 UTC2h 5m
2026-05-27 EIN5HJ DUB → BCN May 27, 06:09 UTCMay 27, 08:15 UTC2h 5m
2026-05-26 EIN44Y CFU → DUB May 26, 21:29 UTCMay 27, 00:44 UTC3h 15m
2026-05-26 EIN4EC DUB → CFU May 26, 17:04 UTCMay 26, 20:15 UTC3h 10m
2026-05-26 EIN161 LHR → DUB May 26, 14:35 UTCMay 26, 15:24 UTC50m
2026-05-26 EIN9AL NOC → LHR May 26, 12:10 UTCMay 26, 13:15 UTC1h 5m
2026-05-26 EIN91W LGW → NOC May 26, 10:20 UTCMay 26, 11:20 UTC1h 0m
2026-05-26 EIN156 DUB → LHR May 26, 07:49 UTCMay 26, 08:59 UTC1h 10m
2026-05-25 EIN3LG MUC → DUB May 25, 18:45 UTCMay 25, 20:50 UTC2h 4m
2026-05-25 EIN3LK DUB → MUC May 25, 16:00 UTCMay 25, 17:55 UTC1h 55m
2026-05-25 EIN165 LHR → DUB May 25, 13:40 UTCMay 25, 14:30 UTC50m
2026-05-25 EIN164 DUB → LHR May 25, 11:30 UTCMay 25, 12:15 UTC45m
2026-05-25 EIN1LK LHR → DUB May 25, 09:15 UTCMay 25, 10:20 UTC1h 5m
2026-05-25 EIN15E DUB → LHR May 25, 07:00 UTCMay 25, 08:00 UTC1h 0m
2026-05-24 EIN183 LHR → DUB May 24, 20:10 UTCMay 24, 20:55 UTC45m
2026-05-24 EIN182 DUB → LHR May 24, 18:20 UTCMay 24, 19:10 UTC50m
2026-05-24 EIN169 LHR → DUB May 24, 16:15 UTCMay 24, 17:05 UTC50m
2026-05-24 EIN168 DUB → LHR May 24, 14:10 UTCMay 24, 15:00 UTC50m
2026-05-24 EIN5WG BCN → DUB May 24, 10:30 UTCMay 24, 12:35 UTC2h 5m
2026-05-24 EIN5HJ DUB → BCN May 24, 06:40 UTCMay 24, 08:50 UTC2h 10m
2026-05-23 EIN171 LHR → DUB May 23, 19:00 UTCMay 23, 19:45 UTC45m
2026-05-23 EIN38Y SNN → LHR May 23, 16:35 UTCMay 23, 17:35 UTC1h 0m
2026-05-23 EIN38W LHR → SNN May 23, 13:50 UTCMay 23, 14:40 UTC50m
2026-05-23 EIN164 DUB → LHR May 23, 11:20 UTCMay 23, 12:15 UTC55m
2026-05-23 EIN1LK LHR → DUB May 23, 09:15 UTCMay 23, 10:00 UTC45m
2026-05-23 EIN15E DUB → LHR May 23, 07:00 UTCMay 23, 07:55 UTC55m
2026-05-22 EIN1YG LHR → DUB May 22, 19:15 UTCMay 22, 20:00 UTC45m
2026-05-22 EIN1HL DUB → LHR May 22, 16:30 UTCMay 22, 17:50 UTC1h 20m
2026-05-22 EIN161 LHR → DUB May 22, 14:45 UTCMay 22, 15:35 UTC50m
2026-05-22 EIN9AL NOC → LHR May 22, 12:20 UTCMay 22, 13:30 UTC1h 10m
2026-05-22 EIN91W LGW → NOC May 22, 10:25 UTCMay 22, 11:35 UTC1h 10m
2026-05-22 EIN156 DUB → LHR May 22, 07:50 UTCMay 22, 08:50 UTC1h 0m
2026-05-21 EIN1YG LHR → DUB May 21, 19:10 UTCMay 21, 19:55 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-NSD page for operator, model, and routing details .

Mode-S 4CAD7D frequently asked

What is Mode-S code 4CAD7D?
4CAD7D is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-NSD.
Where is Mode-S 4CAD7D registered?
Mode-S code 4CAD7D is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD7D broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD7D, octal 23126575, decimal 5,025,149.
What flights does 4CAD7D operate?
Mode-S 4CAD7D has broadcast 20 distinct callsigns, including EIN5WG, EIN5HJ, EIN3LG, EIN1LK, EIN15E.