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sensors Mode-S transponder

4CAF0A

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAF0A
Octal
23127412
Decimal
5,025,546
Country
IE
Tail
EI-HPJ
Type
AT76
Broadcasting now · callsign EAI59L · 16,000 ft
Flights observed
647
Distinct callsigns
20
Country
IE
Last broadcast
2h ago

Current position

4CAF0A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CAF0A 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
EAI55YA - 13 2026-07-10
EAI4WD - 13 2026-07-10
EAI29GA - 12 2026-06-27
EAI28QB Elite Air 12 2026-06-27
EAI8BR - 11 2026-07-13
EAI59L - 11 2026-07-13
EAI58Z Elite Air 11 2026-07-14
EAI3HP - 11 2026-06-25
EAI32V - 11 2026-07-07
EAI17W - 11 2026-07-07
EAI91M - 10 2026-07-09
EAI8C Elite Air 10 2026-07-06
EAI81A - 10 2026-07-13
EAI6RC Elite Air 10 2026-07-01
EAI57K Elite Air 10 2026-07-01
EAI34N - 10 2026-07-10
EAI33CB - 10 2026-07-10
EAI31F - 10 2026-06-25
EAI2DM Elite Air 10 2026-07-12
EAI26PK - 10 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EAI58Z DUB → EDI Jul 14, 18:15 UTCJul 14, 18:30 UTC15m
2026-07-14 EAI73B BHX → DUB Jul 14, 16:25 UTCJul 14, 17:25 UTC1h 0m
2026-07-14 EAI72V DUB → BHX Jul 14, 14:30 UTCJul 14, 15:20 UTC50m
2026-07-14 EAI37E NCL → DUB Jul 14, 08:25 UTCJul 14, 09:30 UTC1h 5m
2026-07-14 EAI73N DUB → NCL Jul 14, 06:30 UTCJul 14, 07:25 UTC55m
2026-07-13 EAI59L - Jul 13, 19:55 UTCJul 13, 21:00 UTC1h 5m
2026-07-13 EAI58Z DUB → EDI Jul 13, 18:05 UTCJul 13, 19:15 UTC1h 10m
2026-07-13 EAI73B BHX → DUB Jul 13, 16:10 UTCJul 13, 17:15 UTC1h 5m
2026-07-13 EAI72V DUB → BHX Jul 13, 14:15 UTCJul 13, 15:25 UTC1h 10m
2026-07-13 EAI81A - Jul 13, 11:30 UTCJul 13, 12:25 UTC55m
2026-07-13 EAI4RA ORK → BRS Jul 13, 09:40 UTCJul 13, 10:45 UTC1h 5m
2026-07-13 EAI84LP BRS → ORK Jul 13, 07:35 UTCJul 13, 08:35 UTC1h 0m
2026-07-13 EAI8BR DUB → BRS Jul 13, 06:01 UTCJul 13, 06:55 UTC55m
2026-07-12 EAI95C LBA → DUB Jul 12, 19:50 UTCJul 12, 20:45 UTC55m
2026-07-12 EAI94S DUB → LBA Jul 12, 18:15 UTCJul 12, 19:10 UTC55m
2026-07-12 EAI93D LBA → LBA Jul 12, 16:20 UTCJul 12, 17:20 UTC1h 0m
2026-07-12 EAI92B DUB → LBA Jul 12, 14:40 UTCJul 12, 15:30 UTC50m
2026-07-12 EAI2DM GLA → DUB Jul 12, 12:35 UTCJul 12, 13:40 UTC1h 5m
2026-07-12 EAI26PK DUB → GLA Jul 12, 11:01 UTCJul 12, 11:45 UTC45m
2026-07-12 EAI31M - Jul 12, 08:30 UTCJul 12, 09:55 UTC1h 25m
2026-07-12 EAI7S DUB → SOU Jul 12, 06:30 UTCJul 12, 07:45 UTC1h 15m
2026-07-11 EAI46Z LPL → DUB Jul 11, 21:05 UTCJul 11, 21:55 UTC50m
2026-07-11 EAI36W DUB → LPL Jul 11, 19:55 UTCJul 11, 20:30 UTC35m
2026-07-11 EAI5JM RNS → DUB Jul 11, 17:15 UTCJul 11, 18:55 UTC1h 40m
2026-07-11 EAI4F DUB → RNS Jul 11, 14:55 UTCJul 11, 16:35 UTC1h 40m
2026-07-11 EAI67F MAN → DUB Jul 11, 12:30 UTCJul 11, 13:20 UTC50m
2026-07-11 EAI66L DUB → MAN Jul 11, 10:45 UTCJul 11, 11:30 UTC45m
2026-07-11 EAI33X EDI → DUB Jul 11, 08:35 UTCJul 11, 09:45 UTC1h 10m
2026-07-11 EAI5ED DUB → EDI Jul 11, 06:30 UTCJul 11, 07:40 UTC1h 10m
2026-07-10 EAI95C LBA → DUB Jul 10, 20:05 UTCJul 10, 21:00 UTC55m
2026-07-10 EAI94S DUB → LBA Jul 10, 18:35 UTCJul 10, 19:25 UTC50m
2026-07-10 EAI19MS MAN → DUB Jul 10, 17:05 UTCJul 10, 18:00 UTC55m
2026-07-10 EAI33CB DUB → MAN Jul 10, 15:25 UTCJul 10, 16:10 UTC45m
2026-07-10 EAI55YA - Jul 10, 12:45 UTCJul 10, 13:50 UTC1h 5m
2026-07-10 EAI4WD DUB → EDI Jul 10, 11:05 UTCJul 10, 12:00 UTC55m
2026-07-10 EAI34N - Jul 10, 08:45 UTCJul 10, 10:10 UTC1h 25m
2026-07-10 EAI42A DUB → ABZ Jul 10, 06:50 UTCJul 10, 08:00 UTC1h 10m
2026-07-09 EAI89DF BRS → DUB Jul 9, 20:10 UTCJul 9, 21:05 UTC55m
2026-07-09 EAI17C ORK → BRS Jul 9, 18:25 UTCJul 9, 19:30 UTC1h 5m
2026-07-09 EAI18K BRS → ORK Jul 9, 16:40 UTCJul 9, 17:45 UTC1h 5m
2026-07-09 EAI86W DUB → BRS Jul 9, 15:00 UTCJul 9, 15:55 UTC55m
2026-07-09 EAI38D MAN → DUB Jul 9, 13:15 UTCJul 9, 14:05 UTC50m
2026-07-09 EAI69M - Jul 9, 11:15 UTCJul 9, 12:10 UTC55m
2026-07-09 EAI91M - Jul 9, 09:00 UTCJul 9, 10:00 UTC1h 0m
2026-07-09 EAI9L DUB → LBA Jul 9, 06:55 UTCJul 9, 07:45 UTC50m
2026-07-08 EAI59L EDI → DUB Jul 8, 19:45 UTCJul 8, 20:45 UTC1h 0m
2026-07-08 EAI58Z DUB → EDI Jul 8, 18:00 UTCJul 8, 18:55 UTC55m
2026-07-08 EAI73B BHX → DUB Jul 8, 16:05 UTCJul 8, 17:05 UTC1h 0m
2026-07-08 EAI72V DUB → BHX Jul 8, 14:05 UTCJul 8, 15:15 UTC1h 10m
2026-07-08 EAI65Y - Jul 8, 11:50 UTCJul 8, 12:55 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-HPJ page for operator, model, and routing details .

Mode-S 4CAF0A frequently asked

What is Mode-S code 4CAF0A?
4CAF0A is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HPJ.
Where is Mode-S 4CAF0A registered?
Mode-S code 4CAF0A is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAF0A broadcasting right now?
Yes. Mode-S 4CAF0A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAF0A, octal 23127412, decimal 5,025,546.
What flights does 4CAF0A operate?
Mode-S 4CAF0A has broadcast 20 distinct callsigns, including EAI55YA, EAI4WD, EAI29GA, EAI28QB, EAI8BR.