Apparatus

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sensors Mode-S transponder

4CA4EE

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DPJ · BOEING 737-800

Hex
4CA4EE
Octal
23122356
Decimal
5,022,958
Country
IE
Tail
EI-DPJ
Type
B738
No current signal · last broadcast 8h ago
Flights observed
240
Distinct callsigns
20
Country
IE
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 4CA4EE.

Country allocation

The ICAO 24-bit address 4CA4EE 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
RYR80XD Ryanair 5 2026-05-23
RYR47NY Ryanair 5 2026-05-23
RYR2WW Ryanair 5 2026-05-18
RYR2EY Ryanair 5 2026-05-18
RYR40ZA Ryanair 4 2026-05-19
RYR14KL Ryanair 4 2026-05-19
RYR94EE Ryanair 3 2026-04-18
RYR81SU Ryanair 3 2026-05-15
RYR73SV Ryanair 3 2026-05-21
RYR72YC Ryanair 3 2026-05-21
RYR322N Ryanair 3 2026-05-08
RYR17JX Ryanair 3 2026-05-08
RYR9JX Ryanair 2 2026-04-17
RYR9DJ Ryanair 2 2026-05-31
RYR98SM Ryanair 2 2026-05-20
RYR982M Ryanair 2 2026-04-17
RYR96FD Ryanair 2 2026-05-22
RYR95KE Ryanair 2 2026-05-22
RYR9561 Ryanair 2 2026-05-04
RYR940 Ryanair 2 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 RYR16CP AHO → DUB Jun 2, 15:15 UTCJun 2, 18:10 UTC2h 55m
2026-06-02 RYR59XG DUB → AHO Jun 2, 11:10 UTCJun 2, 13:25 UTC2h 15m
2026-06-02 RYR83UV CCF → MAN Jun 2, 07:45 UTCJun 2, 09:35 UTC1h 50m
2026-06-02 RYR7VE DUB → BIQ Jun 2, 04:50 UTCJun 2, 06:25 UTC1h 35m
2026-06-01 RYR50WM IBZ → DUB Jun 1, 22:20 UTCJun 2, 00:35 UTC2h 15m
2026-06-01 RYR87ZG VIT → CRL Jun 1, 18:40 UTCJun 1, 21:15 UTC2h 35m
2026-06-01 RYR54WQ MAN → DUB Jun 1, 17:00 UTCJun 1, 17:35 UTC35m
2026-06-01 RYR21DG DUB → MAN Jun 1, 15:30 UTCJun 1, 16:05 UTC35m
2026-06-01 RYR662E NQY → DUB Jun 1, 13:45 UTCJun 1, 14:25 UTC40m
2026-06-01 RYR5XB NUE → FNC Jun 1, 12:10 UTCJun 1, 12:55 UTC45m
2026-06-01 RYR6CA SNN → STN Jun 1, 09:20 UTCJun 1, 11:05 UTC1h 45m
2026-06-01 RYR8QA ALC → EDI Jun 1, 06:25 UTCJun 1, 08:05 UTC1h 40m
2026-05-31 RYR6FH EDI → LIS May 31, 19:20 UTCMay 31, 20:00 UTC40m
2026-05-31 RYR992 VIE → MXP May 31, 18:05 UTCMay 31, 18:35 UTC30m
2026-05-31 RYR16YG LGW → DUB May 31, 14:20 UTCMay 31, 15:15 UTC55m
2026-05-31 RYR4JT BRS → WRO May 31, 12:05 UTCMay 31, 13:00 UTC55m
2026-05-31 RYR18YL NAP → MXP May 31, 10:10 UTCMay 31, 11:05 UTC55m
2026-05-31 RYR9DJ MAD → BHX May 31, 08:25 UTCMay 31, 09:00 UTC35m
2026-05-30 RYR50DA DUB → BVA May 30, 18:50 UTCMay 30, 20:00 UTC1h 10m
2026-05-30 RYR40ND BVA → DUB May 30, 16:35 UTCMay 30, 17:40 UTC1h 5m
2026-05-30 RYR33TU FEZ → BVA May 30, 12:20 UTCMay 30, 14:50 UTC2h 30m
2026-05-30 RYR15DT SUF → STN May 30, 09:00 UTCMay 30, 11:15 UTC2h 15m
2026-05-30 RYR21NF DUB → BVA May 30, 06:10 UTCMay 30, 07:15 UTC1h 5m
2026-05-30 RYR55KV BVA → DUB May 30, 03:55 UTCMay 30, 05:05 UTC1h 10m
2026-05-29 RYR72ZY EMA → ALC May 29, 17:35 UTCMay 29, 19:30 UTC1h 55m
2026-05-29 RYR55AR BVA → LIS May 29, 14:05 UTCMay 29, 16:10 UTC2h 5m
2026-05-29 RYR3644 ESU → BVA May 29, 05:50 UTCMay 29, 12:25 UTC6h 35m
2026-05-28 RYR6VV PRG → RHO May 28, 18:40 UTCMay 28, 20:55 UTC2h 15m
2026-05-28 RYR64VL MLA → EDI May 28, 15:40 UTCMay 28, 17:45 UTC2h 5m
2026-05-28 RYR35JJ CLJ → BVA May 28, 12:25 UTCMay 28, 14:35 UTC2h 10m
2026-05-28 RYR13XJ BVA → CLJ May 28, 09:25 UTCMay 28, 11:15 UTC1h 50m
2026-05-28 RYR21NF DUB → BVA May 28, 07:30 UTCMay 28, 08:30 UTC1h 0m
2026-05-28 RYR55KV BVA → DUB May 28, 04:50 UTCMay 28, 06:10 UTC1h 20m
2026-05-27 RYR224 BHX → ALC May 27, 18:25 UTCMay 27, 20:40 UTC2h 15m
2026-05-27 RYR8611 - May 27, 15:15 UTCMay 27, 17:10 UTC1h 55m
2026-05-27 RYR3LT ALC → LTN May 27, 08:20 UTCMay 27, 10:20 UTC2h 0m
2026-05-27 RYR209L RAK → AGP May 27, 06:09 UTCMay 27, 07:10 UTC1h 0m
2026-05-27 RYR3909 AGP → RAK May 27, 04:14 UTCMay 27, 04:59 UTC45m
2026-05-26 RYR22SA LBA → AGP May 26, 21:59 UTCMay 27, 00:34 UTC2h 35m
2026-05-26 RYR72HH AGP → LBA May 26, 18:34 UTCMay 26, 21:04 UTC2h 30m
2026-05-26 RYR50KK MAN → MXP May 26, 14:45 UTCMay 26, 17:15 UTC2h 30m
2026-05-26 RYR18YL NAP → MXP May 26, 12:40 UTCMay 26, 13:29 UTC50m
2026-05-26 RYR9DJ MAD → BHX May 26, 10:50 UTCMay 26, 11:34 UTC45m
2026-05-26 RYR10BF LGW → DUB May 26, 08:10 UTCMay 26, 09:09 UTC1h 0m
2026-05-26 RYR40AU BHX → VLC May 26, 05:34 UTCMay 26, 06:34 UTC1h 0m
2026-05-25 RYR50WM IBZ → DUB May 25, 21:49 UTCMay 26, 00:04 UTC2h 15m
2026-05-25 RYR87ZG VIT → CRL May 25, 18:20 UTCMay 25, 20:59 UTC2h 40m
2026-05-25 RYR12MM LGW → DUB May 25, 12:15 UTCMay 25, 13:10 UTC55m
2026-05-25 RYR28JB DUB → LGW May 25, 10:05 UTCMay 25, 11:15 UTC1h 10m
2026-05-25 RYR10BF LGW → DUB May 25, 07:50 UTCMay 25, 08:45 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-DPJ page for operator, model, and routing details .

Mode-S 4CA4EE frequently asked

What is Mode-S code 4CA4EE?
4CA4EE is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DPJ.
Where is Mode-S 4CA4EE registered?
Mode-S code 4CA4EE is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA4EE broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA4EE, octal 23122356, decimal 5,022,958.
What flights does 4CA4EE operate?
Mode-S 4CA4EE has broadcast 20 distinct callsigns, including RYR80XD, RYR47NY, RYR2WW, RYR2EY, RYR40ZA.