Apparatus

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sensors Mode-S transponder

4CAD7B

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAD7B
Octal
23126573
Decimal
5,025,147
Country
IE
Tail
EI-NSB
Type
A20N
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
506
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S 4CAD7B.

Country allocation

The ICAO 24-bit address 4CAD7B 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
EIN15M - 18 2026-07-18
EIN1XT - 17 2026-07-18
EIN1CM - 17 2026-07-18
EIN172 - 17 2026-07-18
EIN16C Aer Lingus 17 2026-07-18
EIN173 - 16 2026-07-18
EIN9AL Aer Lingus 11 2026-07-26
EIN91W Aer Lingus 11 2026-07-26
EIN161 Aer Lingus 11 2026-07-26
EIN156 Aer Lingus 11 2026-07-26
EIN151 Aer Lingus 10 2026-07-25
EIN725 - 9 2026-07-15
EIN71K - 9 2026-07-16
EIN42W - 9 2026-06-25
EIN38W Aer Lingus 9 2026-07-24
EIN1YG Aer Lingus 9 2026-07-21
EIN1HL Aer Lingus 9 2026-07-21
EIN15C Aer Lingus 9 2026-07-25
EIN7LP - 8 2026-07-15
EIN7HL - 8 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EIN69Y DUS → DUB Jul 26, 19:25 UTCJul 26, 20:55 UTC1h 30m
2026-07-26 EIN69D DUB → DUS Jul 26, 17:00 UTCJul 26, 18:10 UTC1h 10m
2026-07-26 EIN69D DUB → DUS Jul 26, 16:50 UTCJul 26, 16:55 UTC5m
2026-07-26 EIN161 LHR → DUB Jul 26, 14:40 UTCJul 26, 15:30 UTC50m
2026-07-26 EIN9AL NOC → LHR Jul 26, 12:20 UTCJul 26, 13:25 UTC1h 5m
2026-07-26 EIN91W LGW → NOC Jul 26, 10:20 UTCJul 26, 11:30 UTC1h 10m
2026-07-26 EIN156 DUB → LHR Jul 26, 08:00 UTCJul 26, 09:00 UTC1h 0m
2026-07-25 EIN183 LHR → DUB Jul 25, 20:05 UTCJul 25, 20:45 UTC40m
2026-07-25 EIN182 DUB → LHR Jul 25, 18:05 UTCJul 25, 18:55 UTC50m
2026-07-25 EIN169 LHR → DUB Jul 25, 16:05 UTCJul 25, 16:50 UTC45m
2026-07-25 EIN168 DUB → LHR Jul 25, 13:50 UTCJul 25, 14:50 UTC1h 0m
2026-07-25 EIN159 LHR → DUB Jul 25, 11:05 UTCJul 25, 11:55 UTC50m
2026-07-25 EIN15C DUB → LHR Jul 25, 09:10 UTCJul 25, 10:00 UTC50m
2026-07-25 EIN151 LHR → DUB Jul 25, 07:05 UTCJul 25, 07:55 UTC50m
2026-07-24 EIN388 - Jul 24, 20:15 UTCJul 24, 21:15 UTC1h 0m
2026-07-24 EIN3YR - Jul 24, 18:15 UTCJul 24, 19:10 UTC55m
2026-07-24 EIN38Y - Jul 24, 16:05 UTCJul 24, 17:05 UTC1h 0m
2026-07-24 EIN38W LHR → SNN Jul 24, 14:05 UTCJul 24, 14:55 UTC50m
2026-07-24 EIN1HW DUB → LHR Jul 24, 12:05 UTCJul 24, 13:00 UTC55m
2026-07-24 EIN503 RNS → DUB Jul 24, 09:40 UTCJul 24, 11:05 UTC1h 25m
2026-07-24 EIN50K DUB → BOD Jul 24, 06:30 UTCJul 24, 08:05 UTC1h 35m
2026-07-23 EIN3AV BOJ → DUB Jul 23, 20:50 UTCJul 24, 00:30 UTC3h 40m
2026-07-23 EIN37W DUB → BOJ Jul 23, 16:05 UTCJul 23, 19:30 UTC3h 25m
2026-07-23 EIN165 LHR → DUB Jul 23, 13:45 UTCJul 23, 14:40 UTC55m
2026-07-23 EIN164 DUB → LHR Jul 23, 11:35 UTCJul 23, 12:25 UTC50m
2026-07-23 EIN1LK - Jul 23, 09:45 UTCJul 23, 10:35 UTC50m
2026-07-23 EIN15E DUB → LHR Jul 23, 07:20 UTCJul 23, 08:20 UTC1h 0m
2026-07-22 EIN3LG MUC → DUB Jul 22, 19:15 UTCJul 22, 21:20 UTC2h 5m
2026-07-22 EIN3LK DUB → MUC Jul 22, 16:15 UTCJul 22, 18:05 UTC1h 50m
2026-07-22 EIN165 LHR → DUB Jul 22, 13:55 UTCJul 22, 14:50 UTC55m
2026-07-22 EIN164 DUB → LHR Jul 22, 11:20 UTCJul 22, 12:15 UTC55m
2026-07-21 EIN1YG LHR → DUB Jul 21, 18:40 UTCJul 21, 19:25 UTC45m
2026-07-21 EIN1HL DUB → LHR Jul 21, 16:45 UTCJul 21, 17:45 UTC1h 0m
2026-07-21 EIN161 LHR → DUB Jul 21, 14:40 UTCJul 21, 15:30 UTC50m
2026-07-21 EIN9AL NOC → LHR Jul 21, 12:20 UTCJul 21, 13:25 UTC1h 5m
2026-07-21 EIN91W - Jul 21, 10:25 UTCJul 21, 11:30 UTC1h 5m
2026-07-21 EIN156 DUB → LHR Jul 21, 08:20 UTCJul 21, 09:20 UTC1h 0m
2026-07-20 EIN7VT ACE → DUB Jul 20, 19:35 UTCJul 20, 23:00 UTC3h 25m
2026-07-20 EIN77C - Jul 20, 14:15 UTCJul 20, 17:40 UTC3h 25m
2026-07-20 EIN5WG BCN → DUB Jul 20, 10:15 UTCJul 20, 12:25 UTC2h 10m
2026-07-20 EIN5HJ DUB → BCN Jul 20, 06:20 UTCJul 20, 08:20 UTC2h 0m
2026-07-19 EIN69Y - Jul 19, 19:15 UTCJul 19, 20:35 UTC1h 20m
2026-07-19 EIN69D DUB → DUS Jul 19, 16:55 UTCJul 19, 18:15 UTC1h 20m
2026-07-19 EIN161 LHR → DUB Jul 19, 15:00 UTCJul 19, 15:55 UTC55m
2026-07-19 EIN9AL NOC → LHR Jul 19, 12:15 UTCJul 19, 13:35 UTC1h 20m
2026-07-19 EIN91W LHR → NOC Jul 19, 10:25 UTCJul 19, 11:30 UTC1h 5m
2026-07-19 EIN156 DUB → LHR Jul 19, 08:05 UTCJul 19, 09:05 UTC1h 0m
2026-07-19 - - Jul 19, 06:25 UTCJul 19, 06:35 UTC10m
2026-07-18 EIN173 LHR → DUB Jul 18, 17:25 UTCJul 18, 18:20 UTC55m
2026-07-18 EIN172 DUB → LHR Jul 18, 15:30 UTCJul 18, 16:15 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-NSB page for operator, model, and routing details .

Mode-S 4CAD7B frequently asked

What is Mode-S code 4CAD7B?
4CAD7B is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-NSB.
Where is Mode-S 4CAD7B registered?
Mode-S code 4CAD7B is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD7B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD7B, octal 23126573, decimal 5,025,147.
What flights does 4CAD7B operate?
Mode-S 4CAD7B has broadcast 20 distinct callsigns, including EIN15M, EIN1XT, EIN1CM, EIN172, EIN16C.