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sensors Mode-S transponder

4CAAD8

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-FAT · ATR-72-600

Hex
4CAAD8
Octal
23125330
Decimal
5,024,472
Country
IE
Tail
EI-FAT
Type
AT76
Broadcasting now · callsign EAI55YA · 1,875 ft
Flights observed
781
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:50 UTC

Current position

4CAAD8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAAD8 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
EAI09U - 16 2026-07-24
EAI8C Elite Air 15 2026-07-24
EAI32V - 14 2026-07-17
EAI53BS Elite Air 13 2026-07-24
EAI52NE Elite Air 13 2026-07-24
EAI51C Elite Air 13 2026-07-24
EAI50E Elite Air 13 2026-07-24
EAI39V - 13 2026-07-23
EAI17W - 13 2026-07-17
EAI19L Elite Air 12 2026-07-23
EAI4WD - 11 2026-07-13
EAI37E Elite Air 11 2026-07-25
EAI73N Elite Air 10 2026-07-25
EAI69M Elite Air 10 2026-06-03
EAI65Y - 10 2026-07-25
EAI5ED Elite Air 10 2026-07-26
EAI46Z Elite Air 10 2026-07-25
EAI38D Elite Air 10 2026-06-03
EAI36W - 10 2026-07-25
EAI33X Elite Air 10 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EAI59L EDI → DUB Jul 26, 20:40 UTCJul 26, 21:45 UTC1h 5m
2026-07-26 EAI58Z DUB → EDI Jul 26, 18:05 UTCJul 26, 19:00 UTC55m
2026-07-26 EAI73B BHX → DUB Jul 26, 15:55 UTCJul 26, 17:00 UTC1h 5m
2026-07-26 EAI72V DUB → BHX Jul 26, 14:05 UTCJul 26, 15:00 UTC55m
2026-07-26 EAI67F MAN → DUB Jul 26, 12:25 UTCJul 26, 13:10 UTC45m
2026-07-26 EAI66L DUB → MAN Jul 26, 10:20 UTCJul 26, 11:05 UTC45m
2026-07-26 EAI33X EDI → DUB Jul 26, 08:15 UTCJul 26, 09:25 UTC1h 10m
2026-07-26 EAI5ED DUB → EDI Jul 26, 06:35 UTCJul 26, 07:25 UTC50m
2026-07-25 EAI46Z LPL → DUB Jul 25, 20:20 UTCJul 25, 21:00 UTC40m
2026-07-25 EAI36W - Jul 25, 18:55 UTCJul 25, 19:30 UTC35m
2026-07-25 EAI2A SOU → DUB Jul 25, 16:55 UTCJul 25, 18:15 UTC1h 20m
2026-07-25 EAI4HS DUB → SOU Jul 25, 14:50 UTCJul 25, 16:00 UTC1h 10m
2026-07-25 EAI65Y - Jul 25, 12:40 UTCJul 25, 13:40 UTC1h 0m
2026-07-25 EAI64B DUB → BHX Jul 25, 10:20 UTCJul 25, 11:15 UTC55m
2026-07-25 EAI37E NCL → DUB Jul 25, 08:15 UTCJul 25, 09:20 UTC1h 5m
2026-07-25 EAI73N DUB → DUB Jul 25, 06:30 UTCJul 25, 07:25 UTC55m
2026-07-24 EAI09U SOU → DUB Jul 24, 19:10 UTCJul 24, 20:25 UTC1h 15m
2026-07-24 EAI8C DUB → SOU Jul 24, 17:15 UTCJul 24, 18:25 UTC1h 10m
2026-07-24 EAI93D LBA → LBA Jul 24, 15:30 UTCJul 24, 16:20 UTC50m
2026-07-24 EAI92B DUB → LBA Jul 24, 13:55 UTCJul 24, 14:45 UTC50m
2026-07-24 EAI53BS EDI → DUB Jul 24, 11:55 UTCJul 24, 12:50 UTC55m
2026-07-24 EAI52NE DUB → EDI Jul 24, 10:00 UTCJul 24, 11:00 UTC1h 0m
2026-07-24 EAI51C EDI → DUB Jul 24, 08:00 UTCJul 24, 09:00 UTC1h 0m
2026-07-24 EAI50E DUB → EDI Jul 24, 06:05 UTCJul 24, 07:05 UTC1h 0m
2026-07-23 EAI79BX - Jul 23, 21:05 UTCJul 23, 22:00 UTC55m
2026-07-23 EAI78BX - Jul 23, 19:15 UTCJul 23, 20:10 UTC55m
2026-07-23 EAI2A SOU → DUB Jul 23, 17:10 UTCJul 23, 18:25 UTC1h 15m
2026-07-23 EAI4HS - Jul 23, 15:05 UTCJul 23, 16:20 UTC1h 15m
2026-07-23 EAI39V LPL → DUB Jul 23, 12:20 UTCJul 23, 13:00 UTC40m
2026-07-23 EAI19L DUB → LPL Jul 23, 10:45 UTCJul 23, 11:30 UTC45m
2026-07-23 EAI23GA - Jul 23, 08:50 UTCJul 23, 09:35 UTC45m
2026-07-23 EAI25G - Jul 23, 07:15 UTCJul 23, 08:05 UTC50m
2026-07-22 EAI95C LBA → DUB Jul 22, 20:05 UTCJul 22, 20:55 UTC50m
2026-07-22 EAI94S DUB → LBA Jul 22, 18:40 UTCJul 22, 19:30 UTC50m
2026-07-22 EAI19MS MAN → DUB Jul 22, 16:55 UTCJul 22, 17:40 UTC45m
2026-07-22 EAI33CB - Jul 22, 15:20 UTCJul 22, 16:10 UTC50m
2026-07-22 EAG73D - Jul 22, 12:25 UTCJul 22, 14:20 UTC1h 55m
2026-07-22 EAG72F - Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-21 EAI4PC DUB → BHD Jul 21, 07:30 UTCJul 21, 07:50 UTC20m
2026-07-20 EAI46Z LPL → DUB Jul 20, 20:15 UTCJul 20, 20:55 UTC40m
2026-07-20 EAI36W - Jul 20, 18:45 UTCJul 20, 19:25 UTC40m
2026-07-20 EAI2A SOU → DUB Jul 20, 16:45 UTCJul 20, 18:00 UTC1h 15m
2026-07-20 EAI4HS DUB → SOU Jul 20, 14:30 UTCJul 20, 15:50 UTC1h 20m
2026-07-20 EAI67F MAN → DUB Jul 20, 12:45 UTCJul 20, 13:25 UTC40m
2026-07-20 EAI66L DUB → MAN Jul 20, 10:40 UTCJul 20, 11:30 UTC50m
2026-07-20 EAI33X EDI → DUB Jul 20, 08:20 UTCJul 20, 09:15 UTC55m
2026-07-20 EAI5ED - Jul 20, 06:25 UTCJul 20, 07:25 UTC1h 0m
2026-07-19 EAI89DF - Jul 19, 19:35 UTCJul 19, 20:30 UTC55m
2026-07-19 EAI17C ORK → BRS Jul 19, 17:45 UTCJul 19, 18:50 UTC1h 5m
2026-07-19 EAI18K BRS → ORK Jul 19, 16:00 UTCJul 19, 17:05 UTC1h 5m

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

Mode-S 4CAAD8 frequently asked

What is Mode-S code 4CAAD8?
4CAAD8 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-FAT.
Where is Mode-S 4CAAD8 registered?
Mode-S code 4CAAD8 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAAD8 broadcasting right now?
Yes. Mode-S 4CAAD8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAAD8, octal 23125330, decimal 5,024,472.
What flights does 4CAAD8 operate?
Mode-S 4CAAD8 has broadcast 20 distinct callsigns, including EAI09U, EAI8C, EAI32V, EAI53BS, EAI52NE.