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
Broadcasting now · callsign RYR98XK · 20,000 ft
Flights observed
617
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CA565 is currently broadcasting. Map zoomed to live position.

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
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
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
RYR13KA - 4 2026-07-06
RYR9RJ Ryanair 3 2026-06-12
RYR92NU Ryanair 3 2026-06-13
RYR900A Ryanair 3 2026-06-12
RYR8RP Ryanair 3 2026-06-04
RYR8KM Ryanair 3 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 RYR838P - Jul 15, 04:10 UTCJul 15, 05:15 UTC1h 5m
2026-07-14 RYR5AD - Jul 14, 20:05 UTCJul 14, 21:25 UTC1h 20m
2026-07-14 RYR28SP - Jul 14, 18:00 UTCJul 14, 19:00 UTC1h 0m
2026-07-14 RYR8713 - Jul 14, 15:25 UTCJul 14, 16:45 UTC1h 20m
2026-07-14 RYR2MF - Jul 14, 12:05 UTCJul 14, 13:40 UTC1h 35m
2026-07-14 RYR14YY ARN → PSA Jul 14, 08:20 UTCJul 14, 10:50 UTC2h 30m
2026-07-14 RYR456B - Jul 14, 04:30 UTCJul 14, 06:55 UTC2h 25m
2026-07-13 RYR6TE - Jul 13, 20:30 UTCJul 13, 21:30 UTC1h 0m
2026-07-13 RYR100J - Jul 13, 18:10 UTCJul 13, 19:05 UTC55m
2026-07-13 RYR94MC - Jul 13, 16:20 UTCJul 13, 17:15 UTC55m
2026-07-13 RYR3SD - Jul 13, 14:30 UTCJul 13, 15:30 UTC1h 0m
2026-07-13 RYR98XK - Jul 13, 12:15 UTCJul 13, 13:30 UTC1h 15m
2026-07-13 RYR838P - Jul 13, 09:50 UTCJul 13, 11:20 UTC1h 30m
2026-07-13 RYR66DP - Jul 13, 07:25 UTCJul 13, 09:05 UTC1h 40m
2026-07-13 RYR83TK PSA → STN Jul 13, 04:20 UTCJul 13, 06:20 UTC2h 0m
2026-07-12 RYR8RB - Jul 12, 20:45 UTCJul 12, 21:30 UTC45m
2026-07-12 RYR292Q - Jul 12, 19:15 UTCJul 12, 20:01 UTC45m
2026-07-12 RYR64VR MAN → PSA Jul 12, 16:25 UTCJul 12, 18:20 UTC1h 55m
2026-07-12 RYR84LQ PSA → MAN Jul 12, 13:05 UTCJul 12, 15:10 UTC2h 5m
2026-07-12 RYR5TL VLC → PSA Jul 12, 10:40 UTCJul 12, 12:10 UTC1h 30m
2026-07-12 RYR46CU - Jul 12, 08:10 UTCJul 12, 09:50 UTC1h 40m
2026-07-12 RYR5709 - Jul 12, 05:55 UTCJul 12, 06:45 UTC50m
2026-07-12 RYR50QH - Jul 12, 04:10 UTCJul 12, 05:01 UTC50m
2026-07-11 RYR90TA - Jul 11, 15:35 UTCJul 11, 22:35 UTC7h 0m
2026-07-11 RYR64VR MAN → PSA Jul 11, 12:20 UTCJul 11, 14:35 UTC2h 15m
2026-07-11 RYR84LQ - Jul 11, 09:15 UTCJul 11, 11:20 UTC2h 5m
2026-07-11 RYR2GP - Jul 11, 06:35 UTCJul 11, 07:45 UTC1h 10m
2026-07-11 RYR564P - Jul 11, 04:40 UTCJul 11, 05:45 UTC1h 5m
2026-07-10 RYR4ZJ AHO → PSA Jul 10, 21:30 UTCJul 10, 22:05 UTC35m
2026-07-10 RYR7992 - Jul 10, 20:10 UTCJul 10, 20:50 UTC40m
2026-07-10 RYR5ZT IBZ → PSA Jul 10, 17:50 UTCJul 10, 19:10 UTC1h 20m
2026-07-10 RYR43TW PSA → IBZ Jul 10, 15:20 UTCJul 10, 16:55 UTC1h 35m
2026-07-10 RYR9241 - Jul 10, 12:50 UTCJul 10, 13:50 UTC1h 0m
2026-07-10 RYR25JB - Jul 10, 10:05 UTCJul 10, 11:45 UTC1h 40m
2026-07-10 RYR772F - Jul 10, 07:15 UTCJul 10, 08:55 UTC1h 40m
2026-07-09 RYR4595 - Jul 9, 19:50 UTCJul 9, 20:20 UTC30m
2026-07-09 RYR4595 - Jul 9, 18:35 UTCJul 9, 19:45 UTC1h 10m
2026-07-09 RYR4594 - Jul 9, 16:10 UTCJul 9, 17:45 UTC1h 35m
2026-07-09 RYR772P - Jul 9, 13:45 UTCJul 9, 15:25 UTC1h 40m
2026-07-09 RYR743Z MXP → STN Jul 9, 10:55 UTCJul 9, 12:30 UTC1h 35m
2026-07-09 RYR4SP - Jul 9, 08:15 UTCJul 9, 09:45 UTC1h 30m
2026-07-08 RYR85KD TRN → STN Jul 8, 21:35 UTCJul 8, 23:00 UTC1h 25m
2026-07-08 RYR17RY SVQ → TRN Jul 8, 17:35 UTCJul 8, 19:40 UTC2h 5m
2026-07-08 RYR78QQ TRN → SVQ Jul 8, 14:30 UTCJul 8, 16:30 UTC2h 0m
2026-07-08 RYR41CF MLA → TRN Jul 8, 11:55 UTCJul 8, 13:35 UTC1h 40m
2026-07-08 RYR45NP TRN → MLA Jul 8, 09:35 UTCJul 8, 11:10 UTC1h 35m
2026-07-08 RYR65JP - Jul 8, 07:10 UTCJul 8, 08:40 UTC1h 30m
2026-07-08 RYR62CY - Jul 8, 04:30 UTCJul 8, 05:50 UTC1h 20m
2026-07-07 RYR77ZD TRN → TRN Jul 7, 11:25 UTCJul 7, 18:15 UTC6h 50m
2026-07-07 RYR1020 - Jul 7, 08:40 UTCJul 7, 10:00 UTC1h 20m

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?
Yes. Mode-S 4CA565 is currently airborne.
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, RYR83BZ, RYR80HG, RYR7CW.