Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CAF0B

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAF0B
Octal
23127413
Decimal
5,025,547
Country
IE
Tail
EI-HPK
Type
AT76
No current signal · last broadcast Jul 26, 20:45 UTC
Flights observed
600
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:45 UTC

Last known position

Most recent position reported by Mode-S 4CAF0B.

Country allocation

The ICAO 24-bit address 4CAF0B 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
EAI41D - 16 2026-07-15
EAI16M Elite Air 16 2026-07-14
EAI48D Elite Air 15 2026-07-14
EAI42D Elite Air 15 2026-07-14
EAI17N Elite Air 15 2026-07-14
EAI54VJ - 14 2026-07-15
EAI29GA Elite Air 14 2026-07-24
EAI55SK - 13 2026-07-15
EAI43D - 13 2026-07-14
EAI26PK Elite Air 12 2026-07-25
EAI75B - 11 2026-07-15
EAI74G Elite Air 11 2026-07-15
EAI39V Elite Air 11 2026-07-26
EAI31M Elite Air 11 2026-07-23
EAI2DM Elite Air 11 2026-07-25
EAI19L Elite Air 11 2026-07-26
EAI85Y Elite Air 10 2026-07-15
EAI84U Elite Air 10 2026-07-15
EAI7S Elite Air 10 2026-07-23
EAI42A Elite Air 10 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EAI89DF BRS → BRS Jul 26, 19:30 UTCJul 26, 20:30 UTC1h 0m
2026-07-26 EAI17C ORK → BRS Jul 26, 17:45 UTCJul 26, 18:40 UTC55m
2026-07-26 EAI18K BRS → ORK Jul 26, 15:50 UTCJul 26, 17:05 UTC1h 15m
2026-07-26 EAI86W DUB → BRS Jul 26, 14:05 UTCJul 26, 15:05 UTC1h 0m
2026-07-26 EAI39V LPL → DUB Jul 26, 12:35 UTCJul 26, 13:15 UTC40m
2026-07-26 EAI19L DUB → LPL Jul 26, 11:05 UTCJul 26, 11:45 UTC40m
2026-07-26 EAI34N ABZ → DUB Jul 26, 08:35 UTCJul 26, 10:05 UTC1h 30m
2026-07-26 EAI42A DUB → ABZ Jul 26, 06:40 UTCJul 26, 07:50 UTC1h 10m
2026-07-26 EAI42A DUB → ABZ Jul 26, 06:25 UTCJul 26, 06:30 UTC5m
2026-07-25 EAI59L EDI → DUB Jul 25, 19:50 UTCJul 25, 20:40 UTC50m
2026-07-25 EAI58Z DUB → EDI Jul 25, 18:00 UTCJul 25, 18:55 UTC55m
2026-07-25 EAI73B BHX → DUB Jul 25, 16:15 UTCJul 25, 17:15 UTC1h 0m
2026-07-25 EAI72V DUB → BHX Jul 25, 14:30 UTCJul 25, 15:25 UTC55m
2026-07-25 EAI2DM GLA → DUB Jul 25, 12:40 UTCJul 25, 13:25 UTC45m
2026-07-25 EAI26PK DUB → GLA Jul 25, 10:45 UTCJul 25, 11:40 UTC55m
2026-07-25 EAI26PK DUB → GLA Jul 25, 10:35 UTCJul 25, 10:40 UTC5m
2026-07-25 EAI17W MAN → DUB Jul 25, 09:00 UTCJul 25, 09:45 UTC45m
2026-07-25 EAI32V DUB → MAN Jul 25, 07:20 UTCJul 25, 08:05 UTC45m
2026-07-25 EAI32V DUB → MAN Jul 25, 06:45 UTCJul 25, 06:50 UTC5m
2026-07-24 EAI29GA GLA → DUB Jul 24, 17:45 UTCJul 24, 20:30 UTC2h 45m
2026-07-24 EAI29GA GLA → DUB Jul 24, 14:20 UTCJul 24, 16:55 UTC2h 35m
2026-07-24 EAI29GA GLA → DUB Jul 24, 12:30 UTCJul 24, 13:25 UTC55m
2026-07-24 EAI29GA GLA → DUB Jul 24, 10:50 UTCJul 24, 11:35 UTC45m
2026-07-24 EAI29GA GLA → DUB Jul 24, 08:40 UTCJul 24, 09:35 UTC55m
2026-07-24 EAI29GA GLA → DUB Jul 24, 07:05 UTCJul 24, 07:55 UTC50m
2026-07-23 EAI29GA GLA → DUB Jul 23, 21:15 UTCJul 23, 22:05 UTC50m
2026-07-23 EAI38JL ORK → GLA Jul 23, 19:10 UTCJul 23, 20:30 UTC1h 20m
2026-07-23 EAI43S GLA → ORK Jul 23, 17:05 UTCJul 23, 18:20 UTC1h 15m
2026-07-23 EAI28QB DUB → GLA Jul 23, 15:30 UTCJul 23, 16:20 UTC50m
2026-07-23 EAI2DM GLA → DUB Jul 23, 13:00 UTCJul 23, 13:50 UTC50m
2026-07-23 EAI26PK - Jul 23, 11:15 UTCJul 23, 12:10 UTC55m
2026-07-23 EAI31M SOU → DUB Jul 23, 08:45 UTCJul 23, 10:00 UTC1h 15m
2026-07-23 EAI7S DUB → SOU Jul 23, 06:25 UTCJul 23, 07:45 UTC1h 20m
2026-07-22 EAI09U - Jul 22, 18:55 UTCJul 22, 20:15 UTC1h 20m
2026-07-22 EAI8C DUB → SOU Jul 22, 17:00 UTCJul 22, 18:15 UTC1h 15m
2026-07-22 EAI25LG GLA → DUB Jul 22, 15:05 UTCJul 22, 16:00 UTC55m
2026-07-22 EAI24CE DUB → GLA Jul 22, 13:25 UTCJul 22, 14:20 UTC55m
2026-07-22 EAI13U IOM → DUB Jul 22, 12:00 UTCJul 22, 12:25 UTC25m
2026-07-21 EAI46Z LPL → DUB Jul 21, 20:05 UTCJul 21, 20:45 UTC40m
2026-07-21 EAI36W - Jul 21, 18:40 UTCJul 21, 19:20 UTC40m
2026-07-21 EAI2A SOU → DUB Jul 21, 16:35 UTCJul 21, 18:00 UTC1h 25m
2026-07-21 EAI4HS - Jul 21, 14:25 UTCJul 21, 15:40 UTC1h 15m
2026-07-21 EAI66L MAN → DUB Jul 21, 12:05 UTCJul 21, 12:50 UTC45m
2026-07-21 EAI66L DUB → MAN Jul 21, 10:30 UTCJul 21, 11:15 UTC45m
2026-07-21 EAI5ED EDI → DUB Jul 21, 08:35 UTCJul 21, 09:30 UTC55m
2026-07-21 EAI5ED DUB → EDI Jul 21, 06:40 UTCJul 21, 07:40 UTC1h 0m
2026-07-20 EAI78R - Jul 20, 18:40 UTCJul 20, 20:05 UTC1h 25m
2026-07-20 EAI61L DUB → JER Jul 20, 16:45 UTCJul 20, 18:00 UTC1h 15m
2026-07-20 EAI13U - Jul 20, 11:25 UTCJul 20, 11:50 UTC25m
2026-07-20 EAI12B DUB → IOM Jul 20, 10:20 UTCJul 20, 10:50 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-HPK page for operator, model, and routing details .

Mode-S 4CAF0B frequently asked

What is Mode-S code 4CAF0B?
4CAF0B is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HPK.
Where is Mode-S 4CAF0B registered?
Mode-S code 4CAF0B is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAF0B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAF0B, octal 23127413, decimal 5,025,547.
What flights does 4CAF0B operate?
Mode-S 4CAF0B has broadcast 20 distinct callsigns, including EAI41D, EAI16M, EAI48D, EAI42D, EAI17N.