Apparatus

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sensors Mode-S transponder

4CAA53

ICAO 24-bit transponder address · allocated to Ireland

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

Hex
4CAA53
Octal
23125123
Decimal
5,024,339
Country
IE
Tail
EI-GPN
Type
AT76
No current signal · last broadcast 1d ago
Flights observed
700
Distinct callsigns
20
Country
IE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4CAA53.

Country allocation

The ICAO 24-bit address 4CAA53 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
EAI17N Elite Air 19 2026-07-02
EAI16M Elite Air 18 2026-07-02
EAI48D Elite Air 17 2026-07-02
EAI55SK - 16 2026-07-03
EAI41D - 16 2026-07-03
EAI54VJ - 14 2026-07-03
EAI84U Elite Air 13 2026-07-03
EAI43D - 13 2026-07-02
EAI42D Elite Air 13 2026-07-02
EAI85Y Elite Air 12 2026-07-01
EAI9L - 11 2026-06-26
EAI75B - 11 2026-07-03
EAI74G Elite Air 11 2026-07-03
EAI57K Elite Air 11 2026-07-09
EAI42A - 11 2026-07-11
EAI34N - 11 2026-07-11
EAI2GL - 11 2026-06-28
EAI21HA - 11 2026-06-28
EAI8C Elite Air 10 2026-07-05
EAI6RC Elite Air 10 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 EAI11M MAN → DUB Jul 13, 20:45 UTCJul 13, 21:35 UTC50m
2026-07-13 EAI3BM DUB → MAN Jul 13, 19:05 UTCJul 13, 19:50 UTC45m
2026-07-13 EAI71G NQY → DUB Jul 13, 17:15 UTCJul 13, 18:15 UTC1h 0m
2026-07-13 EAI62N DUB → NQY Jul 13, 15:15 UTCJul 13, 16:05 UTC50m
2026-07-13 EAI67F MAN → DUB Jul 13, 13:40 UTCJul 13, 14:25 UTC45m
2026-07-13 EAI66L DUB → MAN Jul 13, 11:15 UTCJul 13, 12:20 UTC1h 5m
2026-07-13 EAI33X EDI → DUB Jul 13, 08:35 UTCJul 13, 09:50 UTC1h 15m
2026-07-13 EAI5ED DUB → EDI Jul 13, 06:35 UTCJul 13, 07:30 UTC55m
2026-07-12 EAI29GA GLA → DUB Jul 12, 21:35 UTCJul 12, 22:35 UTC1h 0m
2026-07-12 EAI38JL - Jul 12, 19:40 UTCJul 12, 21:00 UTC1h 20m
2026-07-12 EAI43S GLA → ORK Jul 12, 17:35 UTCJul 12, 18:55 UTC1h 20m
2026-07-12 EAI28QB DUB → GLA Jul 12, 15:40 UTCJul 12, 16:30 UTC50m
2026-07-12 EAI65Y BHX → DUB Jul 12, 12:10 UTCJul 12, 13:15 UTC1h 5m
2026-07-12 EAI64B DUB → BHX Jul 12, 10:30 UTCJul 12, 11:25 UTC55m
2026-07-12 EAI81A - Jul 12, 07:50 UTCJul 12, 09:05 UTC1h 15m
2026-07-12 EAI8BR DUB → BRS Jul 12, 06:10 UTCJul 12, 07:05 UTC55m
2026-07-11 EAI1F - Jul 11, 18:40 UTCJul 11, 20:40 UTC2h 0m
2026-07-11 EAI9T DUB → TUF Jul 11, 15:30 UTCJul 11, 17:40 UTC2h 10m
2026-07-11 EAI55YA - Jul 11, 13:30 UTCJul 11, 14:30 UTC1h 0m
2026-07-11 EAI4WD DUB → EDI Jul 11, 11:10 UTCJul 11, 12:20 UTC1h 10m
2026-07-11 EAI34N ABZ → DUB Jul 11, 08:35 UTCJul 11, 09:55 UTC1h 20m
2026-07-11 EAI42A DUB → ABZ Jul 11, 06:40 UTCJul 11, 07:45 UTC1h 5m
2026-07-10 EAI3RG - Jul 10, 19:10 UTCJul 10, 20:15 UTC1h 5m
2026-07-10 EAI35C DUB → EDI Jul 10, 17:00 UTCJul 10, 17:55 UTC55m
2026-07-10 EAI25LG GLA → DUB Jul 10, 15:10 UTCJul 10, 16:05 UTC55m
2026-07-10 EAI24CE DUB → GLA Jul 10, 13:35 UTCJul 10, 14:20 UTC45m
2026-07-10 EAI81A - Jul 10, 11:40 UTCJul 10, 12:40 UTC1h 0m
2026-07-10 EAI4RA ORK → BRS Jul 10, 09:55 UTCJul 10, 11:30 UTC1h 35m
2026-07-10 EAI84LP - Jul 10, 07:55 UTCJul 10, 09:00 UTC1h 5m
2026-07-10 EAI8BR DUB → BRS Jul 10, 06:15 UTCJul 10, 07:10 UTC55m
2026-07-09 EAI31Q EXT → DUB Jul 9, 18:40 UTCJul 9, 19:40 UTC1h 0m
2026-07-09 EAI33S DUB → EXT Jul 9, 16:55 UTCJul 9, 17:50 UTC55m
2026-07-09 EAI57K EDI → DUB Jul 9, 15:00 UTCJul 9, 16:05 UTC1h 5m
2026-07-09 EAI6RC DUB → GLA Jul 9, 13:00 UTCJul 9, 13:55 UTC55m
2026-07-09 EAI23C - Jul 9, 11:20 UTCJul 9, 12:05 UTC45m
2026-07-09 EAI22MW - Jul 9, 09:50 UTCJul 9, 10:35 UTC45m
2026-07-09 EAI51C EDI → DUB Jul 9, 07:50 UTCJul 9, 08:50 UTC1h 0m
2026-07-09 EAI50E - Jul 9, 06:05 UTCJul 9, 07:05 UTC1h 0m
2026-07-08 EAI78R - Jul 8, 18:50 UTCJul 8, 20:10 UTC1h 20m
2026-07-08 EAI61L DUB → JER Jul 8, 16:45 UTCJul 8, 18:05 UTC1h 20m
2026-07-08 EAI57K EDI → DUB Jul 8, 15:00 UTCJul 8, 15:55 UTC55m
2026-07-08 EAI6RC DUB → GLA Jul 8, 13:15 UTCJul 8, 14:15 UTC1h 0m
2026-07-06 EAI89DF - Jul 6, 19:35 UTCJul 6, 20:40 UTC1h 5m
2026-07-06 EAI17C ORK → BRS Jul 6, 17:55 UTCJul 6, 18:55 UTC1h 0m
2026-07-06 EAI18K BRS → ORK Jul 6, 15:55 UTCJul 6, 17:05 UTC1h 10m
2026-07-06 EAI86W DUB → BRS Jul 6, 14:00 UTCJul 6, 15:05 UTC1h 5m
2026-07-06 EAI67F MAN → DUB Jul 6, 12:15 UTCJul 6, 13:00 UTC45m
2026-07-06 EAI66L - Jul 6, 10:30 UTCJul 6, 11:20 UTC50m
2026-07-06 EAI33X - Jul 6, 08:25 UTCJul 6, 09:25 UTC1h 0m
2026-07-06 EAI5ED DUB → EDI Jul 6, 06:40 UTCJul 6, 07:35 UTC55m

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

Mode-S 4CAA53 frequently asked

What is Mode-S code 4CAA53?
4CAA53 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-GPN.
Where is Mode-S 4CAA53 registered?
Mode-S code 4CAA53 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAA53 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAA53, octal 23125123, decimal 5,024,339.
What flights does 4CAA53 operate?
Mode-S 4CAA53 has broadcast 20 distinct callsigns, including EAI17N, EAI16M, EAI48D, EAI55SK, EAI41D.