Apparatus

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sensors Mode-S transponder

4CA9EA

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-EVM · BOEING 737-800

Hex
4CA9EA
Octal
23124752
Decimal
5,024,234
Country
IE
Tail
EI-EVM
Type
B738
Broadcasting now · callsign RYR8WL · 37,000 ft
Flights observed
368
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CA9EA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA9EA 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
RYR2BD Ryanair 8 2026-05-30
RYR11EX Ryanair 8 2026-05-30
RYR2A Ryanair 7 2026-05-29
RYR1237 Ryanair 7 2026-05-29
RYR7FT Ryanair 6 2026-05-30
RYR100T - 6 2026-04-24
RYR5SF Ryanair 5 2026-05-27
RYR4RX Ryanair 5 2026-05-27
RYR1KD Ryanair 5 2026-05-16
RYR11LR Ryanair 5 2026-05-30
RYR93HA Ryanair 4 2026-04-17
RYR91QQ Ryanair 4 2026-05-28
RYR8897 Ryanair 4 2026-05-28
RYR6204 Ryanair 4 2026-05-16
RYR59RR Ryanair 4 2026-04-17
RYR94CD Ryanair 3 2026-05-05
RYR8RB Ryanair 3 2026-05-10
RYR69WR - 3 2026-04-13
RYR5BK Ryanair 3 2026-05-05
RYR4LJ Ryanair 3 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR3LK ATH → FCO May 30, 17:20 UTCMay 30, 18:30 UTC1h 10m
2026-05-30 RYR1YX LTN → KIR May 30, 14:50 UTCMay 30, 16:30 UTC1h 40m
2026-05-30 RYR24JR ATH → VIE May 30, 10:55 UTCMay 30, 12:50 UTC1h 55m
2026-05-30 RYR7FT HEL → WMI May 30, 08:25 UTCMay 30, 09:35 UTC1h 10m
2026-05-30 RYR11LR ATH → CTA May 30, 06:00 UTCMay 30, 07:15 UTC1h 15m
2026-05-30 RYR2BD STN → BER May 30, 04:50 UTCMay 30, 05:15 UTC25m
2026-05-30 RYR11EX ATH → JTR May 30, 03:20 UTCMay 30, 03:45 UTC25m
2026-05-29 RYR1237 JTR → ATH May 29, 21:10 UTCMay 29, 21:40 UTC30m
2026-05-29 RYR2A MAN → LPA May 29, 19:50 UTCMay 29, 20:15 UTC25m
2026-05-29 RYR3AM - May 29, 16:45 UTCMay 29, 18:50 UTC2h 5m
2026-05-29 RYR6208 ATH → WMI May 29, 13:20 UTCMay 29, 15:50 UTC2h 30m
2026-05-29 RYR7FT HEL → WMI May 29, 10:25 UTCMay 29, 11:35 UTC1h 10m
2026-05-29 RYR11LR ATH → CTA May 29, 08:05 UTCMay 29, 09:25 UTC1h 20m
2026-05-29 RYR2BD STN → BER May 29, 05:35 UTCMay 29, 06:00 UTC25m
2026-05-29 RYR11EX ATH → JTR May 29, 04:10 UTCMay 29, 04:35 UTC25m
2026-05-28 RYR1237 JTR → ATH May 28, 20:55 UTCMay 28, 21:25 UTC30m
2026-05-28 RYR2A MAN → LPA May 28, 19:20 UTCMay 28, 19:45 UTC25m
2026-05-28 RYR8897 MXP → ATH May 28, 16:10 UTCMay 28, 18:15 UTC2h 5m
2026-05-28 RYR91QQ CTA → BER May 28, 12:50 UTCMay 28, 15:05 UTC2h 15m
2026-05-28 RYR3PW MAD → MAN May 28, 10:15 UTCMay 28, 11:55 UTC1h 40m
2026-05-28 RYR578E ATH → FCO May 28, 07:15 UTCMay 28, 08:55 UTC1h 40m
2026-05-28 RYR326 PFO → ATH May 28, 05:05 UTCMay 28, 06:20 UTC1h 15m
2026-05-28 RYR325 ATH → PFO May 28, 02:55 UTCMay 28, 04:05 UTC1h 10m
2026-05-27 RYR5SF BCN → MAN May 27, 19:35 UTCMay 27, 20:40 UTC1h 5m
2026-05-27 RYR4RX ATH → BRI May 27, 17:35 UTCMay 27, 18:40 UTC1h 5m
2026-05-27 RYR1237 JTR → ATH May 27, 16:20 UTCMay 27, 16:45 UTC25m
2026-05-27 RYR2A MAN → LPA May 27, 14:55 UTCMay 27, 15:20 UTC25m
2026-05-27 RYR8897 MXP → ATH May 27, 11:40 UTCMay 27, 13:45 UTC2h 5m
2026-05-27 RYR91QQ CTA → BER May 27, 08:30 UTCMay 27, 10:40 UTC2h 10m
2026-05-27 RYR2BD STN → BER May 27, 07:00 UTCMay 27, 07:25 UTC25m
2026-05-27 RYR11EX ATH → JTR May 27, 05:35 UTCMay 27, 05:59 UTC25m
2026-05-26 RYR7FT HEL → WMI May 26, 20:50 UTCMay 26, 21:59 UTC1h 10m
2026-05-26 RYR11LR ATH → CTA May 26, 18:45 UTCMay 26, 19:55 UTC1h 10m
2026-05-26 RYR81Q PFO → ATH May 26, 16:45 UTCMay 26, 17:55 UTC1h 10m
2026-05-26 RYR335 DUB → LGW May 26, 14:40 UTCMay 26, 15:54 UTC1h 15m
2026-05-26 RYR4GB TSF → SVQ May 26, 10:50 UTCMay 26, 13:45 UTC2h 55m
2026-05-26 RYR9PK KRK → ALC May 26, 06:49 UTCMay 26, 09:35 UTC2h 45m
2026-05-26 RYR2BD STN → BER May 26, 05:34 UTCMay 26, 05:59 UTC25m
2026-05-26 RYR11EX ATH → JTR May 26, 04:10 UTCMay 26, 04:39 UTC30m
2026-05-25 RYR326 PFO → ATH May 25, 20:34 UTCMay 25, 21:54 UTC1h 20m
2026-05-25 RYR325 ATH → PFO May 25, 18:35 UTCMay 25, 19:44 UTC1h 9m
2026-05-25 RYR6923 JTR → ATH May 25, 17:05 UTCMay 25, 17:25 UTC20m
2026-05-25 RYR6922 - May 25, 15:40 UTCMay 25, 16:05 UTC25m
2026-05-25 RYR3PW MAD → MAN May 25, 10:25 UTCMay 25, 12:10 UTC1h 45m
2026-05-25 RYR578E ATH → FCO May 25, 07:30 UTCMay 25, 09:05 UTC1h 35m
2026-05-25 RYR5SF BCN → MAN May 25, 05:25 UTCMay 25, 06:40 UTC1h 15m
2026-05-25 RYR4RX ATH → BRI May 25, 03:05 UTCMay 25, 04:10 UTC1h 5m
2026-05-24 RYR45XQ BUD → ATH May 24, 20:50 UTCMay 24, 21:45 UTC55m
2026-05-24 RYR7596 ATH → BUD May 24, 18:20 UTCMay 24, 20:05 UTC1h 45m
2026-05-24 RYR1237 JTR → ATH May 24, 17:10 UTCMay 24, 17:30 UTC20m

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

Mode-S 4CA9EA frequently asked

What is Mode-S code 4CA9EA?
4CA9EA is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-EVM.
Where is Mode-S 4CA9EA registered?
Mode-S code 4CA9EA is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA9EA broadcasting right now?
Yes. Mode-S 4CA9EA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA9EA, octal 23124752, decimal 5,024,234.
What flights does 4CA9EA operate?
Mode-S 4CA9EA has broadcast 20 distinct callsigns, including RYR2BD, RYR11EX, RYR2A, RYR1237, RYR7FT.