Apparatus

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sensors Mode-S transponder

4CAD7F

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAD7F
Octal
23126577
Decimal
5,025,151
Country
IE
Tail
EI-NSF
Type
A20N
Broadcasting now · callsign EIN7HL · 34,000 ft
Flights observed
321
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CAD7F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAD7F 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
EIN164 Aer Lingus 14 2026-05-16
EIN15E Aer Lingus 13 2026-05-16
EIN71K Aer Lingus 12 2026-05-30
EIN1LK Aer Lingus 12 2026-05-16
EIN7HL Aer Lingus 11 2026-05-29
EIN723 Aer Lingus 11 2026-05-29
EIN715 Aer Lingus 11 2026-05-29
EIN714 Aer Lingus 11 2026-05-29
EIN182 Aer Lingus 11 2026-05-17
EIN7LP Aer Lingus 10 2026-05-29
EIN7EG Aer Lingus 10 2026-05-29
EIN725 Aer Lingus 10 2026-05-29
EIN38Y Aer Lingus 10 2026-05-16
EIN183 Aer Lingus 10 2026-05-17
EIN38W Aer Lingus 9 2026-05-16
EIN168 Aer Lingus 8 2026-05-17
EIN165 Aer Lingus 8 2026-05-15
EIN169 Aer Lingus 7 2026-05-17
EIN3LK Aer Lingus 6 2026-05-15
EIN3LG Aer Lingus 6 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EIN71K ORK → LHR May 30, 06:20 UTCMay 30, 07:30 UTC1h 10m
2026-05-29 EIN725 LHR → ORK May 29, 21:35 UTCMay 29, 22:30 UTC55m
2026-05-29 EIN7LP ORK → LHR May 29, 19:40 UTCMay 29, 20:40 UTC1h 0m
2026-05-29 EIN723 LHR → ORK May 29, 17:45 UTCMay 29, 18:40 UTC55m
2026-05-29 EIN7EG ORK → LHR May 29, 15:20 UTCMay 29, 16:15 UTC55m
2026-05-29 EIN715 LHR → ORK May 29, 13:05 UTCMay 29, 14:00 UTC55m
2026-05-29 EIN714 ORK → LHR May 29, 10:35 UTCMay 29, 11:35 UTC1h 0m
2026-05-29 EIN7HL LHR → ORK May 29, 08:45 UTCMay 29, 09:40 UTC55m
2026-05-29 EIN71K ORK → LHR May 29, 06:25 UTCMay 29, 07:40 UTC1h 15m
2026-05-28 EIN725 LHR → ORK May 28, 21:30 UTCMay 28, 22:25 UTC55m
2026-05-28 EIN7LP ORK → LHR May 28, 19:40 UTCMay 28, 20:35 UTC55m
2026-05-28 EIN723 LHR → ORK May 28, 18:00 UTCMay 28, 18:55 UTC55m
2026-05-28 EIN7EG ORK → LHR May 28, 15:35 UTCMay 28, 16:30 UTC55m
2026-05-28 EIN715 LHR → ORK May 28, 13:50 UTCMay 28, 14:40 UTC50m
2026-05-28 EIN714 ORK → LHR May 28, 11:20 UTCMay 28, 12:30 UTC1h 10m
2026-05-28 EIN7HL LHR → ORK May 28, 09:25 UTCMay 28, 10:25 UTC1h 0m
2026-05-28 EIN71K ORK → LHR May 28, 07:15 UTCMay 28, 08:10 UTC55m
2026-05-27 EIN725 LHR → ORK May 27, 21:55 UTCMay 27, 22:45 UTC50m
2026-05-27 EIN7LP ORK → LHR May 27, 19:40 UTCMay 27, 20:40 UTC1h 0m
2026-05-27 EIN723 LHR → ORK May 27, 18:10 UTCMay 27, 19:00 UTC50m
2026-05-27 EIN7EG ORK → LHR May 27, 16:00 UTCMay 27, 17:05 UTC1h 5m
2026-05-27 EIN715 LHR → ORK May 27, 13:10 UTCMay 27, 14:15 UTC1h 5m
2026-05-27 EIN714 ORK → LHR May 27, 10:30 UTCMay 27, 11:30 UTC1h 0m
2026-05-27 EIN7HL LHR → ORK May 27, 08:40 UTCMay 27, 09:35 UTC55m
2026-05-27 EIN71K ORK → LHR May 27, 06:20 UTCMay 27, 07:30 UTC1h 11m
2026-05-26 EIN8CE PMI → ORK May 26, 21:00 UTCMay 26, 23:10 UTC2h 10m
2026-05-26 EIN860 ORK → PMI May 26, 17:25 UTCMay 26, 19:45 UTC2h 20m
2026-05-26 EIN715 LHR → ORK May 26, 13:24 UTCMay 26, 14:14 UTC50m
2026-05-26 EIN714 ORK → LHR May 26, 10:25 UTCMay 26, 11:34 UTC1h 10m
2026-05-26 EIN7HL LHR → ORK May 26, 08:24 UTCMay 26, 09:19 UTC55m
2026-05-26 EIN71K ORK → LHR May 26, 06:04 UTCMay 26, 07:24 UTC1h 20m
2026-05-25 EIN725 LHR → ORK May 25, 21:35 UTCMay 25, 22:25 UTC50m
2026-05-25 EIN7LP ORK → LHR May 25, 19:40 UTCMay 25, 20:34 UTC55m
2026-05-25 EIN723 LHR → ORK May 25, 17:45 UTCMay 25, 18:40 UTC55m
2026-05-25 EIN7EG ORK → LHR May 25, 15:15 UTCMay 25, 16:25 UTC1h 10m
2026-05-25 EIN715 LHR → ORK May 25, 13:10 UTCMay 25, 14:05 UTC55m
2026-05-25 EIN714 ORK → LHR May 25, 10:45 UTCMay 25, 11:55 UTC1h 10m
2026-05-25 EIN7HL LHR → ORK May 25, 08:50 UTCMay 25, 09:40 UTC50m
2026-05-25 EIN71K ORK → LHR May 25, 06:05 UTCMay 25, 07:15 UTC1h 10m
2026-05-24 EIN725 LHR → ORK May 24, 21:30 UTCMay 24, 21:45 UTC15m
2026-05-24 EIN7LP ORK → LHR May 24, 19:40 UTCMay 24, 20:30 UTC50m
2026-05-24 EIN723 LHR → ORK May 24, 17:50 UTCMay 24, 18:40 UTC50m
2026-05-24 EIN7EG ORK → LHR May 24, 15:05 UTCMay 24, 16:00 UTC55m
2026-05-24 EIN715 LHR → ORK May 24, 13:05 UTCMay 24, 13:55 UTC50m
2026-05-24 EIN714 ORK → LHR May 24, 10:35 UTCMay 24, 11:30 UTC55m
2026-05-24 EIN7HL LHR → ORK May 24, 08:40 UTCMay 24, 09:35 UTC55m
2026-05-24 EIN71K ORK → LHR May 24, 06:10 UTCMay 24, 07:20 UTC1h 10m
2026-05-23 EIN725 LHR → ORK May 23, 21:20 UTCMay 23, 22:10 UTC50m
2026-05-23 EIN7LP ORK → LHR May 23, 19:15 UTCMay 23, 20:15 UTC1h 0m
2026-05-23 EIN723 LHR → ORK May 23, 17:20 UTCMay 23, 18:15 UTC56m

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-NSF page for operator, model, and routing details .

Mode-S 4CAD7F frequently asked

What is Mode-S code 4CAD7F?
4CAD7F is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-NSF.
Where is Mode-S 4CAD7F registered?
Mode-S code 4CAD7F is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD7F broadcasting right now?
Yes. Mode-S 4CAD7F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD7F, octal 23126577, decimal 5,025,151.
What flights does 4CAD7F operate?
Mode-S 4CAD7F has broadcast 20 distinct callsigns, including EIN164, EIN15E, EIN71K, EIN1LK, EIN7HL.