Apparatus

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sensors Mode-S transponder

4CA625

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DWY · BOEING 737-800

Hex
4CA625
Octal
23123045
Decimal
5,023,269
Country
IE
Tail
EI-DWY
Type
B738
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
649
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 4CA625.

Country allocation

The ICAO 24-bit address 4CA625 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
RYR82AX Ryanair 5 2026-06-07
RYR80TJ Ryanair 5 2026-06-07
RYR7CW Ryanair 5 2026-06-08
RYR67YC Ryanair 5 2026-06-08
RYR26UU Ryanair 5 2026-07-21
RYR97UU Ryanair 4 2026-06-01
RYR900A Ryanair 4 2026-06-11
RYR70ZH Ryanair 4 2026-06-01
RYR69BK Ryanair 4 2026-04-26
RYR33PZ Ryanair 4 2026-04-26
RYR2BH - 4 2026-06-26
RYR9RJ Ryanair 3 2026-06-11
RYR97MQ Ryanair 3 2026-05-25
RYR969Z Ryanair 3 2026-06-05
RYR92NU Ryanair 3 2026-06-10
RYR8YU Ryanair 3 2026-05-16
RYR8QN - 3 2026-06-20
RYR8MR Ryanair 3 2026-06-07
RYR89YY Ryanair 3 2026-04-24
RYR87GN Ryanair 3 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR7132 DUB → FAO Jul 26, 18:10 UTCJul 26, 20:30 UTC2h 20m
2026-07-26 RYR989J MAN → DUB Jul 26, 16:40 UTCJul 26, 17:25 UTC45m
2026-07-26 RYR21WJ DUB → MAN Jul 26, 15:10 UTCJul 26, 15:40 UTC30m
2026-07-26 RYR31MX REU → DUB Jul 26, 11:20 UTCJul 26, 13:40 UTC2h 20m
2026-07-26 RYR59PZ DUB → REU Jul 26, 08:15 UTCJul 26, 09:55 UTC1h 40m
2026-07-26 RYR2LR KRK → MAN Jul 26, 06:20 UTCJul 26, 07:05 UTC46m
2026-07-26 RYR378Z DUB → EMA Jul 26, 04:45 UTCJul 26, 05:25 UTC40m
2026-07-25 RYR628R RMU → DUB Jul 25, 19:35 UTCJul 25, 22:10 UTC2h 35m
2026-07-25 RYR76RK DUB → RMU Jul 25, 16:10 UTCJul 25, 18:25 UTC2h 15m
2026-07-25 RYR75WK BHX → DUB Jul 25, 14:25 UTCJul 25, 15:05 UTC40m
2026-07-25 RYR46YZ DUB → BHX Jul 25, 12:45 UTCJul 25, 13:25 UTC40m
2026-07-25 RYR2AJ BVA → FNC Jul 25, 11:05 UTCJul 25, 11:40 UTC35m
2026-07-25 RYR554 DUB → MAN Jul 25, 09:35 UTCJul 25, 10:10 UTC35m
2026-07-25 RYR1FT OTP → DUB Jul 25, 08:05 UTCJul 25, 08:45 UTC40m
2026-07-25 RYR146G BCN → BLQ Jul 25, 06:30 UTCJul 25, 07:05 UTC35m
2026-07-24 RYR3LP STN → DUB Jul 24, 23:15 UTCJul 25, 00:00 UTC45m
2026-07-24 RYR2JP DUB → STN Jul 24, 21:30 UTCJul 24, 22:20 UTC50m
2026-07-24 RYR17NT BCN → DUB Jul 24, 18:05 UTCJul 24, 20:10 UTC2h 5m
2026-07-24 RYR6DZ - Jul 24, 16:20 UTCJul 24, 16:55 UTC35m
2026-07-24 RYR99PV BCN → MAH Jul 24, 15:00 UTCJul 24, 15:25 UTC25m
2026-07-24 RYR45WG NCL → BCN Jul 24, 11:15 UTCJul 24, 13:30 UTC2h 15m
2026-07-24 RYR2TT BLL → SVQ Jul 24, 08:15 UTCJul 24, 10:25 UTC2h 10m
2026-07-24 RYR6882 MAH → BCN Jul 24, 06:30 UTCJul 24, 07:10 UTC40m
2026-07-24 RYR1SR CRL → TRN Jul 24, 04:50 UTCJul 24, 05:20 UTC30m
2026-07-23 RYR7MD ALC → MAN Jul 23, 22:50 UTCJul 23, 23:20 UTC30m
2026-07-23 RYR2889 BCN → PMI Jul 23, 21:30 UTCJul 23, 21:55 UTC25m
2026-07-23 RYR17KF - Jul 23, 18:40 UTCJul 23, 20:15 UTC1h 35m
2026-07-23 RYR84TT - Jul 23, 15:50 UTCJul 23, 17:05 UTC1h 15m
2026-07-23 RYR1TP - Jul 23, 13:00 UTCJul 23, 14:30 UTC1h 30m
2026-07-23 RYR9CL OPO → VIE Jul 23, 08:35 UTCJul 23, 10:10 UTC1h 35m
2026-07-23 RYR4WC KSC → LPL Jul 23, 06:10 UTCJul 23, 07:55 UTC1h 45m
2026-07-22 RYR1EP OPO → TER Jul 22, 19:20 UTCJul 22, 20:55 UTC1h 35m
2026-07-22 RYR59HM FCO → EIN Jul 22, 16:45 UTCJul 22, 18:35 UTC1h 50m
2026-07-22 RYR578E - Jul 22, 13:40 UTCJul 22, 15:25 UTC1h 45m
2026-07-22 RYR3PW MAD → MAN Jul 22, 11:30 UTCJul 22, 12:55 UTC1h 25m
2026-07-22 RYR3074 FCO → BDS Jul 22, 04:10 UTCJul 22, 04:50 UTC40m
2026-07-21 RYR32SC MRS → FCO Jul 21, 20:40 UTCJul 21, 21:30 UTC50m
2026-07-21 RYR945 EDI → TRN Jul 21, 18:50 UTCJul 21, 19:50 UTC1h 0m
2026-07-21 RYR4901 PMO → FCO Jul 21, 17:00 UTCJul 21, 17:45 UTC45m
2026-07-21 RYR15RK FCO → PMO Jul 21, 15:40 UTCJul 21, 16:10 UTC30m
2026-07-21 RYR1PE - Jul 21, 12:45 UTCJul 21, 13:45 UTC1h 0m
2026-07-21 RYR4JK - Jul 21, 10:55 UTCJul 21, 11:40 UTC45m
2026-07-21 RYR28BZ MAD → FCO Jul 21, 07:50 UTCJul 21, 09:30 UTC1h 40m
2026-07-21 RYR26UU FAO → EIN Jul 21, 04:35 UTCJul 21, 06:35 UTC2h 0m
2026-07-20 RYR25XX BCN → FCO Jul 20, 22:00 UTCJul 20, 23:10 UTC1h 10m
2026-07-20 RYR1TP - Jul 20, 18:30 UTCJul 20, 20:05 UTC1h 35m
2026-07-20 RYR3021 BHX → BHX Jul 20, 15:10 UTCJul 20, 16:55 UTC1h 45m
2026-07-20 RYR3TY BRS → ALC Jul 20, 12:35 UTCJul 20, 14:10 UTC1h 35m
2026-07-20 RYR1VB - Jul 20, 09:55 UTCJul 20, 10:30 UTC35m
2026-07-20 RYR65QN FCO → PMO Jul 20, 08:05 UTCJul 20, 08:45 UTC40m

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

Mode-S 4CA625 frequently asked

What is Mode-S code 4CA625?
4CA625 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DWY.
Where is Mode-S 4CA625 registered?
Mode-S code 4CA625 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA625 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA625, octal 23123045, decimal 5,023,269.
What flights does 4CA625 operate?
Mode-S 4CA625 has broadcast 20 distinct callsigns, including RYR82AX, RYR80TJ, RYR7CW, RYR67YC, RYR26UU.