Apparatus

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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
No current signal · last broadcast 6h ago
Flights observed
700
Distinct callsigns
20
Country
IE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4CAAD8.

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
EAI32V - 13 2026-07-11
EAI09U - 13 2026-07-02
EAI8C Elite Air 12 2026-07-02
EAI53BS Elite Air 12 2026-07-04
EAI52NE - 12 2026-07-04
EAI51C - 12 2026-07-12
EAI50E - 12 2026-07-12
EAI39V - 12 2026-07-14
EAI17W - 12 2026-07-11
EAI4WD - 11 2026-07-13
EAI19L - 11 2026-07-14
EAI69M Elite Air 10 2026-06-03
EAI38D Elite Air 10 2026-06-03
EAI25LG Elite Air 10 2026-06-30
EAI24CE Elite Air 10 2026-06-30
EAI23C - 10 2026-07-12
EAI22MW - 10 2026-07-12
EAI55YA - 9 2026-07-13
EAI37E - 9 2026-07-05
EAI2GL - 9 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EAI89DF BRS → DUB Jul 14, 19:40 UTCJul 14, 20:40 UTC1h 0m
2026-07-14 EAI17C ORK → BRS Jul 14, 17:55 UTCJul 14, 19:00 UTC1h 5m
2026-07-14 EAI18K BRS → ORK Jul 14, 16:00 UTCJul 14, 17:05 UTC1h 5m
2026-07-14 EAI86W DUB → BRS Jul 14, 14:10 UTCJul 14, 15:10 UTC1h 0m
2026-07-14 EAI39V - Jul 14, 12:25 UTCJul 14, 13:10 UTC45m
2026-07-14 EAI19L DUB → LPL Jul 14, 11:05 UTCJul 14, 11:40 UTC35m
2026-07-14 EAI31M SOU → DUB Jul 14, 08:30 UTCJul 14, 09:50 UTC1h 20m
2026-07-14 EAI7S DUB → SOU Jul 14, 06:20 UTCJul 14, 07:40 UTC1h 20m
2026-07-13 EAI95C LBA → DUB Jul 13, 20:35 UTCJul 13, 21:30 UTC55m
2026-07-13 EAI94S DUB → LBA Jul 13, 19:15 UTCJul 13, 20:05 UTC50m
2026-07-13 EAI19MS MAN → DUB Jul 13, 17:45 UTCJul 13, 18:30 UTC45m
2026-07-13 EAI33CB DUB → MAN Jul 13, 16:00 UTCJul 13, 16:45 UTC45m
2026-07-13 EAI55YA - Jul 13, 13:20 UTCJul 13, 14:20 UTC1h 0m
2026-07-13 EAI4WD DUB → EDI Jul 13, 11:15 UTCJul 13, 12:25 UTC1h 10m
2026-07-13 EAI34N - Jul 13, 08:35 UTCJul 13, 09:55 UTC1h 20m
2026-07-13 EAI42A DUB → ABZ Jul 13, 06:40 UTCJul 13, 07:50 UTC1h 10m
2026-07-12 EAI79BX - Jul 12, 19:50 UTCJul 12, 20:55 UTC1h 5m
2026-07-12 EAI78BX DUB → BHX Jul 12, 18:20 UTCJul 12, 19:40 UTC1h 20m
2026-07-12 EAI73V INV → DUB Jul 12, 16:10 UTCJul 12, 17:20 UTC1h 10m
2026-07-12 EAI72N DUB → INV Jul 12, 14:01 UTCJul 12, 15:15 UTC1h 15m
2026-07-12 EAI23C GLA → DUB Jul 12, 11:50 UTCJul 12, 12:40 UTC50m
2026-07-12 EAI22MW DUB → GLA Jul 12, 10:05 UTCJul 12, 10:55 UTC50m
2026-07-12 EAI51C - Jul 12, 07:55 UTCJul 12, 09:15 UTC1h 20m
2026-07-12 EAI50E - Jul 12, 06:05 UTCJul 12, 06:55 UTC50m
2026-07-11 EAI2A SOU → DUB Jul 11, 17:20 UTCJul 11, 18:40 UTC1h 20m
2026-07-11 EAI4HS DUB → SOU Jul 11, 15:00 UTCJul 11, 16:25 UTC1h 25m
2026-07-11 EAI2DM GLA → DUB Jul 11, 12:35 UTCJul 11, 13:35 UTC1h 0m
2026-07-11 EAI26PK DUB → GLA Jul 11, 10:50 UTCJul 11, 11:40 UTC50m
2026-07-11 EAI17W MAN → DUB Jul 11, 08:45 UTCJul 11, 09:35 UTC50m
2026-07-11 EAI32V DUB → MAN Jul 11, 07:00 UTCJul 11, 07:45 UTC45m
2026-07-10 EAI29GA - Jul 10, 21:50 UTCJul 10, 22:40 UTC50m
2026-07-10 EAI38JL ORK → GLA Jul 10, 20:00 UTCJul 10, 21:15 UTC1h 15m
2026-07-10 EAI43S GLA → ORK Jul 10, 17:45 UTCJul 10, 19:10 UTC1h 25m
2026-07-10 EAI28QB DUB → GLA Jul 10, 16:00 UTCJul 10, 16:50 UTC50m
2026-07-10 EAI33X - Jul 10, 08:35 UTCJul 10, 09:35 UTC1h 0m
2026-07-10 EAI5ED DUB → EDI Jul 10, 06:30 UTCJul 10, 07:30 UTC1h 0m
2026-07-07 EAI46Z LPL → DUB Jul 7, 20:15 UTCJul 7, 20:55 UTC40m
2026-07-07 EAI36W DUB → LPL Jul 7, 18:35 UTCJul 7, 19:15 UTC40m
2026-07-07 EAI2A SOU → DUB Jul 7, 16:30 UTCJul 7, 17:50 UTC1h 20m
2026-07-07 EAI4HS - Jul 7, 14:30 UTCJul 7, 15:40 UTC1h 10m
2026-07-07 EAI23C - Jul 7, 11:55 UTCJul 7, 12:45 UTC50m
2026-07-07 EAI22MW DUB → GLA Jul 7, 10:25 UTCJul 7, 11:15 UTC50m
2026-07-07 EAI81A BRS → DUB Jul 7, 08:15 UTCJul 7, 09:10 UTC55m
2026-07-07 EAI8BR DUB → BRS Jul 7, 06:40 UTCJul 7, 07:40 UTC1h 0m
2026-07-06 EAI78R - Jul 6, 19:10 UTCJul 6, 20:45 UTC1h 35m
2026-07-06 EAI61L DUB → JER Jul 6, 17:10 UTCJul 6, 18:30 UTC1h 20m
2026-07-06 EAI57K EDI → DUB Jul 6, 15:30 UTCJul 6, 16:25 UTC55m
2026-07-06 EAI6RC DUB → GLA Jul 6, 13:35 UTCJul 6, 14:30 UTC55m
2026-07-06 EAI13U - Jul 6, 11:55 UTCJul 6, 12:25 UTC30m
2026-07-06 EAI12B - Jul 6, 10:25 UTCJul 6, 10:55 UTC30m

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?
No active broadcast right now. Last signal was 6h ago.
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 EAI32V, EAI09U, EAI8C, EAI53BS, EAI52NE.