Apparatus

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sensors Mode-S transponder

4CA565

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DPZ · BOEING 737-800

Hex
4CA565
Octal
23122545
Decimal
5,023,077
Country
IE
Tail
EI-DPZ
Type
B738
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
699
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 4CA565.

Country allocation

The ICAO 24-bit address 4CA565 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
RYR100T - 8 2026-07-01
RYR8UC - 4 2026-07-06
RYR8RB Ryanair 4 2026-07-25
RYR88VF Ryanair 4 2026-07-25
RYR83BZ Ryanair 4 2026-06-13
RYR80HG Ryanair 4 2026-05-16
RYR7CW Ryanair 4 2026-07-04
RYR6FC Ryanair 4 2026-06-13
RYR67YC - 4 2026-07-04
RYR65JP - 4 2026-07-08
RYR62CY - 4 2026-07-08
RYR4KG Ryanair 4 2026-07-25
RYR4891 Ryanair 4 2026-05-16
RYR3WK Ryanair 4 2026-06-12
RYR3RU Ryanair 4 2026-05-16
RYR3HB Ryanair 4 2026-05-16
RYR3AF Ryanair 4 2026-06-12
RYR292Q Ryanair 4 2026-07-25
RYR13KA - 4 2026-07-06
RYR9RJ Ryanair 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR5465 OPO → RAK Jul 26, 16:20 UTCJul 26, 21:15 UTC4h 55m
2026-07-26 RYR9UV RAK → OPO Jul 26, 14:10 UTCJul 26, 15:20 UTC1h 10m
2026-07-26 RYR7AC VIE → DUB Jul 26, 09:55 UTCJul 26, 12:50 UTC2h 55m
2026-07-26 RYR44SX RAK → BRU Jul 26, 05:15 UTCJul 26, 08:20 UTC3h 6m
2026-07-25 RYR7AC VIE → DUB Jul 25, 20:25 UTCJul 25, 23:10 UTC2h 45m
2026-07-25 RYR5236 PSA → BRU Jul 25, 17:50 UTCJul 25, 19:10 UTC1h 20m
2026-07-25 RYR5AD CTA → PSA Jul 25, 15:35 UTCJul 25, 16:50 UTC1h 15m
2026-07-25 RYR28SP PSA → CTA Jul 25, 13:10 UTCJul 25, 14:15 UTC1h 5m
2026-07-25 RYR4KG BVA → MAN Jul 25, 10:05 UTCJul 25, 11:55 UTC1h 50m
2026-07-25 RYR88VF PSA → OTP Jul 25, 07:35 UTCJul 25, 09:15 UTC1h 40m
2026-07-25 RYR8RB BDS → FCO Jul 25, 05:50 UTCJul 25, 06:30 UTC40m
2026-07-25 RYR292Q PSA → CAG Jul 25, 04:05 UTCJul 25, 04:45 UTC40m
2026-07-24 RYR135Z STN → PSA Jul 24, 19:55 UTCJul 24, 21:35 UTC1h 40m
2026-07-24 RYR9VT PSA → STN Jul 24, 17:05 UTCJul 24, 18:55 UTC1h 50m
2026-07-24 RYR6BT NWI → MLA Jul 24, 14:50 UTCJul 24, 16:10 UTC1h 20m
2026-07-24 RYR37BC PSA → BVA Jul 24, 12:50 UTCJul 24, 14:10 UTC1h 20m
2026-07-24 RYR20UU ALC → LPL Jul 24, 10:30 UTCJul 24, 11:45 UTC1h 15m
2026-07-24 RYR2KK RAK → DLE Jul 24, 08:10 UTCJul 24, 09:40 UTC1h 30m
2026-07-24 RYR2WF BLL → TRN Jul 24, 05:55 UTCJul 24, 06:55 UTC1h 0m
2026-07-24 RYR32RL STN → CGN Jul 24, 04:15 UTCJul 24, 05:05 UTC50m
2026-07-23 RYR11BG WAW → PSA Jul 23, 19:05 UTCJul 23, 20:50 UTC1h 45m
2026-07-23 RYR61AD PSA → WAW Jul 23, 16:40 UTCJul 23, 18:20 UTC1h 40m
2026-07-23 RYR4KG BVA → MAN Jul 23, 13:45 UTCJul 23, 15:45 UTC2h 0m
2026-07-23 RYR88VF - Jul 23, 11:25 UTCJul 23, 12:55 UTC1h 30m
2026-07-23 RYR28TV EDI → PSA Jul 23, 08:00 UTCJul 23, 10:15 UTC2h 15m
2026-07-23 RYR72PP PMO → BCN Jul 23, 04:10 UTCJul 23, 06:35 UTC2h 25m
2026-07-22 RYR94MC TPS → PSA Jul 22, 19:25 UTCJul 22, 20:15 UTC50m
2026-07-22 RYR3SD MME → ALC Jul 22, 17:45 UTCJul 22, 18:35 UTC50m
2026-07-22 RYR79MY - Jul 22, 15:30 UTCJul 22, 16:50 UTC1h 20m
2026-07-22 RYR729Z PSA → PMI Jul 22, 13:00 UTCJul 22, 14:05 UTC1h 5m
2026-07-22 RYR838P - Jul 22, 04:30 UTCJul 22, 11:45 UTC7h 15m
2026-07-21 RYR1LB - Jul 21, 20:15 UTCJul 21, 21:25 UTC1h 10m
2026-07-21 RYR66WT PSA → CRL Jul 21, 18:10 UTCJul 21, 19:30 UTC1h 20m
2026-07-21 RYR8713 VLC → PSA Jul 21, 15:10 UTCJul 21, 16:35 UTC1h 25m
2026-07-21 RYR2MF - Jul 21, 12:25 UTCJul 21, 14:05 UTC1h 40m
2026-07-21 RYR14YY ARN → PSA Jul 21, 08:05 UTCJul 21, 10:35 UTC2h 30m
2026-07-21 RYR456B PSA → ARN Jul 21, 04:35 UTCJul 21, 07:05 UTC2h 30m
2026-07-20 RYR1282 TRF → PSA Jul 20, 23:25 UTCJul 20, 23:45 UTC20m
2026-07-20 RYR1282 TRF → PSA Jul 20, 19:25 UTCJul 20, 21:40 UTC2h 15m
2026-07-20 RYR1281 PSA → TRF Jul 20, 16:10 UTCJul 20, 18:40 UTC2h 30m
2026-07-20 RYR5AD - Jul 20, 14:15 UTCJul 20, 15:25 UTC1h 10m
2026-07-20 RYR28SP PSA → CTA Jul 20, 12:00 UTCJul 20, 13:05 UTC1h 5m
2026-07-20 RYR5NB - Jul 20, 09:30 UTCJul 20, 10:35 UTC1h 5m
2026-07-20 RYR761H - Jul 20, 07:50 UTCJul 20, 08:45 UTC55m
2026-07-20 RYR2WF - Jul 20, 06:05 UTCJul 20, 07:00 UTC55m
2026-07-20 RYR32RL STN → CGN Jul 20, 04:15 UTCJul 20, 05:00 UTC45m
2026-07-19 RYR2E KRK → PSA Jul 19, 18:30 UTCJul 19, 20:10 UTC1h 40m
2026-07-19 RYR6324 VLC → STN Jul 19, 17:05 UTCJul 19, 17:40 UTC35m
2026-07-19 RYR63XE - Jul 19, 13:50 UTCJul 19, 15:40 UTC1h 50m
2026-07-19 RYR5TL VLC → PSA Jul 19, 10:35 UTCJul 19, 12:00 UTC1h 25m

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

Mode-S 4CA565 frequently asked

What is Mode-S code 4CA565?
4CA565 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DPZ.
Where is Mode-S 4CA565 registered?
Mode-S code 4CA565 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA565 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA565, octal 23122545, decimal 5,023,077.
What flights does 4CA565 operate?
Mode-S 4CA565 has broadcast 20 distinct callsigns, including RYR100T, RYR8UC, RYR8RB, RYR88VF, RYR83BZ.