Apparatus

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sensors Mode-S transponder

4CA8D5

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-ENJ · BOEING 737-800

Hex
4CA8D5
Octal
23124325
Decimal
5,023,957
Country
IE
Tail
EI-ENJ
Type
B738
No current signal · last broadcast 1h ago
Flights observed
303
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4CA8D5.

Country allocation

The ICAO 24-bit address 4CA8D5 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
RYR58QK - 4 2026-04-15
RYR3FA - 4 2026-04-15
RYR8XV Ryanair 3 2026-05-07
RYR7CB Ryanair 3 2026-05-07
RYR765L Ryanair 3 2026-05-26
RYR6MJ Ryanair 3 2026-05-24
RYR45TN Ryanair 3 2026-05-26
RYR39FX Ryanair 3 2026-05-15
RYR17NT - 3 2026-04-13
RYR9SE Ryanair 2 2026-05-15
RYR9GR Ryanair 2 2026-05-25
RYR98ML Ryanair 2 2026-05-25
RYR85FA Ryanair 2 2026-05-25
RYR82JL Ryanair 2 2026-05-14
RYR6WD Ryanair 2 2026-04-16
RYR6NG Ryanair 2 2026-05-12
RYR68GQ - 2 2026-04-14
RYR65ER Ryanair 2 2026-05-09
RYR63VE Ryanair 2 2026-04-13
RYR5NQ Ryanair 2 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR58QW BRS → PMI May 30, 17:00 UTCMay 30, 18:50 UTC1h 50m
2026-05-30 RYR445T CPH → BRS May 30, 13:50 UTCMay 30, 15:35 UTC1h 45m
2026-05-30 RYR6RM ALC → EDI May 30, 11:30 UTCMay 30, 13:00 UTC1h 30m
2026-05-30 RYR27SA STN → CPH May 30, 08:35 UTCMay 30, 10:30 UTC1h 55m
2026-05-30 RYR84UF BRS → VCE May 30, 05:50 UTCMay 30, 07:40 UTC1h 50m
2026-05-29 RYR3WX STN → NAP May 29, 18:25 UTCMay 29, 20:35 UTC2h 10m
2026-05-29 RYR1DK BRS → ALC May 29, 15:20 UTCMay 29, 17:10 UTC1h 50m
2026-05-29 RYR20TE NOC → BRS May 29, 12:40 UTCMay 29, 13:30 UTC50m
2026-05-29 RYR738W BRS → NOC May 29, 10:50 UTCMay 29, 11:45 UTC55m
2026-05-29 RYR46LK BZR → BRS May 29, 08:20 UTCMay 29, 09:55 UTC1h 35m
2026-05-29 RYR1NY BRS → BZR May 29, 05:50 UTCMay 29, 07:15 UTC1h 25m
2026-05-28 RYR337L DUB → BRS May 28, 22:55 UTCMay 28, 23:35 UTC40m
2026-05-28 RYR34QP BRS → DUB May 28, 21:25 UTCMay 28, 22:05 UTC40m
2026-05-28 RYR6NL REU → BHX May 28, 18:20 UTCMay 28, 20:30 UTC2h 10m
2026-05-28 RYR4FQ TRS → BER May 28, 15:00 UTCMay 28, 17:00 UTC2h 0m
2026-05-28 RYR565K DUB → BRS May 28, 13:10 UTCMay 28, 13:55 UTC45m
2026-05-28 RYR33PC BRS → DUB May 28, 11:20 UTCMay 28, 12:00 UTC40m
2026-05-28 RYR849N VLC → BRS May 28, 08:05 UTCMay 28, 10:10 UTC2h 5m
2026-05-28 RYR86TM BRS → VLC May 28, 05:15 UTCMay 28, 07:15 UTC2h 0m
2026-05-27 RYR2LG DUB → MAN May 27, 19:40 UTCMay 27, 21:35 UTC1h 55m
2026-05-27 RYR7PP VIE → BRS May 27, 16:40 UTCMay 27, 18:35 UTC1h 55m
2026-05-27 RYR565K DUB → BRS May 27, 15:05 UTCMay 27, 15:50 UTC45m
2026-05-27 RYR33PC BRS → DUB May 27, 13:00 UTCMay 27, 13:40 UTC40m
2026-05-27 RYR48XE FAO → BRS May 27, 09:45 UTCMay 27, 11:55 UTC2h 10m
2026-05-27 RYR4MG BRS → FAO May 27, 06:44 UTCMay 27, 09:00 UTC2h 15m
2026-05-26 RYR337L DUB → BRS May 26, 18:40 UTCMay 26, 19:20 UTC40m
2026-05-26 RYR34QP BRS → DUB May 26, 17:04 UTCMay 26, 17:50 UTC45m
2026-05-26 RYR81CB BGY → BRS May 26, 14:30 UTCMay 26, 16:05 UTC1h 35m
2026-05-26 RYR765L BDS → BGY May 26, 12:10 UTCMay 26, 13:19 UTC1h 10m
2026-05-26 RYR45TN STN → RMU May 26, 09:55 UTCMay 26, 11:15 UTC1h 20m
2026-05-26 RYR41CA - May 26, 06:49 UTCMay 26, 07:55 UTC1h 5m
2026-05-26 RYR6YM TIA → BLQ May 26, 04:50 UTCMay 26, 05:59 UTC1h 10m
2026-05-25 RYR8LX EDI → VIE May 25, 21:30 UTCMay 25, 22:40 UTC1h 10m
2026-05-25 RYR17TD BGY → BDS May 25, 19:20 UTCMay 25, 20:40 UTC1h 20m
2026-05-25 RYR9GR BDS → BGY May 25, 16:50 UTCMay 25, 18:05 UTC1h 15m
2026-05-25 RYR2NR BGY → BDS May 25, 14:35 UTCMay 25, 16:00 UTC1h 25m
2026-05-25 RYR18RQ LCJ → BGY May 25, 11:35 UTCMay 25, 13:05 UTC1h 30m
2026-05-25 RYR207V BGY → LCJ May 25, 09:20 UTCMay 25, 10:55 UTC1h 35m
2026-05-25 RYR98ML STN → BGY May 25, 07:10 UTCMay 25, 08:40 UTC1h 30m
2026-05-25 RYR85FA BGY → STN May 25, 04:30 UTCMay 25, 06:05 UTC1h 35m
2026-05-24 RYR6MJ AGP → VLC May 24, 19:25 UTCMay 24, 20:30 UTC1h 5m
2026-05-24 RYR57ME RIX → AGP May 24, 17:25 UTCMay 24, 18:40 UTC1h 15m
2026-05-24 RYR42UP VNO → BGY May 24, 13:40 UTCMay 24, 15:35 UTC1h 55m
2026-05-24 RYR6JD DUB → MXP May 24, 10:35 UTCMay 24, 12:45 UTC2h 10m
2026-05-24 RYR52XB KRK → BGY May 24, 08:35 UTCMay 24, 09:45 UTC1h 10m
2026-05-24 RYR76PX BGY → KRK May 24, 06:25 UTCMay 24, 07:50 UTC1h 25m
2026-05-23 RYR1WF MAD → BGY May 23, 19:30 UTCMay 23, 21:15 UTC1h 45m
2026-05-23 RYR91CV BGY → OTP May 23, 16:55 UTCMay 23, 18:40 UTC1h 46m
2026-05-23 RYR6MJ AGP → VLC May 23, 12:25 UTCMay 23, 13:30 UTC1h 5m
2026-05-23 RYR57ME RIX → AGP May 23, 10:25 UTCMay 23, 11:35 UTC1h 10m

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

Mode-S 4CA8D5 frequently asked

What is Mode-S code 4CA8D5?
4CA8D5 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-ENJ.
Where is Mode-S 4CA8D5 registered?
Mode-S code 4CA8D5 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA8D5 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA8D5, octal 23124325, decimal 5,023,957.
What flights does 4CA8D5 operate?
Mode-S 4CA8D5 has broadcast 20 distinct callsigns, including RYR58QK, RYR3FA, RYR8XV, RYR7CB, RYR765L.