sensors Mode-S transponder

4CAD7C

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAD7C
Octal
23126574
Decimal
5,025,148
Country
IE
Tail
EI-NSC
Type
A20N
No current signal · last broadcast 17h ago
Flights observed
17
Distinct callsigns
8
Country
IE
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 4CAD7C.

Country allocation

The ICAO 24-bit address 4CAD7C 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 8 distinct

Callsign Airline Flights Last seen
EIN7LP - 3 2026-04-13
EIN7HL Aer Lingus 3 2026-04-14
EIN71K - 3 2026-04-14
EIN7EG - 2 2026-04-13
EIN723 - 2 2026-04-13
EIN714 - 2 2026-04-14
EIN725 - 1 2026-04-13
EIN715 - 1 2026-04-13

Recent flights last 17

DateFlightRouteTakeoffLandingDuration
2026-04-14 EIN714 - Apr 14, 10:40 UTCApr 14, 11:05 UTC25m
2026-04-14 EIN7HL LHR → ORK Apr 14, 09:10 UTCApr 14, 09:35 UTC25m
2026-04-14 EIN7HL LHR → ORK Apr 14, 08:35 UTCApr 14, 09:05 UTC30m
2026-04-14 EIN71K - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 EIN71K - Apr 14, 06:25 UTCApr 14, 07:10 UTC45m
2026-04-13 EIN725 LHR → ORK Apr 13, 21:15 UTCApr 13, 22:15 UTC1h 0m
2026-04-13 EIN7LP SWS → LHR Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 EIN7LP - Apr 13, 19:30 UTCApr 13, 20:10 UTC40m
2026-04-13 EIN723 - Apr 13, 17:30 UTCApr 13, 18:30 UTC1h 0m
2026-04-13 EIN7EG - Apr 13, 15:50 UTCApr 13, 16:10 UTC20m
2026-04-13 EIN7EG ORK → LHR Apr 13, 15:15 UTCApr 13, 16:10 UTC55m
2026-04-13 EIN715 - Apr 13, 12:55 UTCApr 13, 13:55 UTC1h 0m
2026-04-13 EIN714 ORK → LHR Apr 13, 10:30 UTCApr 13, 11:30 UTC1h 0m
2026-04-13 EIN7HL LHR → ORK Apr 13, 08:30 UTCApr 13, 09:25 UTC55m
2026-04-13 EIN71K ORK → LHR Apr 13, 06:20 UTCApr 13, 07:20 UTC1h 0m
2026-04-12 EIN7LP - Apr 12, 19:45 UTCApr 12, 20:15 UTC30m
2026-04-12 EIN723 - Apr 12, 17:50 UTCApr 12, 18:45 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-NSC page for operator, model, and routing details .

Mode-S 4CAD7C frequently asked

What is Mode-S code 4CAD7C?
4CAD7C is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-NSC.
Where is Mode-S 4CAD7C registered?
Mode-S code 4CAD7C is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD7C broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD7C, octal 23126574, decimal 5,025,148.
What flights does 4CAD7C operate?
Mode-S 4CAD7C has broadcast 8 distinct callsigns, including EIN7LP, EIN7HL, EIN71K, EIN7EG, EIN723.