Apparatus

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sensors Mode-S transponder

4CA806

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-EKH · BOEING 737-800

Hex
4CA806
Octal
23124006
Decimal
5,023,750
Country
IE
Tail
EI-EKH
Type
B738
Broadcasting now · callsign RYR27XV · 40,000 ft
Flights observed
517
Distinct callsigns
20
Country
IE
Last broadcast
5m ago

Current position

4CA806 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA806 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
RYR8DU - 4 2026-07-09
RYR3WD Ryanair 4 2026-05-27
RYR088 Ryanair 4 2026-05-27
RYR95JY - 3 2026-07-15
RYR926T - 3 2026-07-15
RYR89YN Ryanair 3 2026-06-17
RYR7HJ - 3 2026-06-21
RYR70FA Ryanair 3 2026-05-08
RYR6WD - 3 2026-07-21
RYR6HL Ryanair 3 2026-05-11
RYR5VJ Ryanair 3 2026-06-05
RYR57YG Ryanair 3 2026-05-08
RYR48MU Ryanair 3 2026-06-05
RYR305X - 3 2026-06-20
RYR29AM - 3 2026-07-21
RYR9MX - 2 2026-07-06
RYR9BR - 2 2026-06-20
RYR97CB Ryanair 2 2026-06-04
RYR95SN Ryanair 2 2026-07-21
RYR93GN - 2 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 RYR27XV GOA → STN Jul 24, 22:30 UTCJul 24, 23:30 UTC1h 0m
2026-07-24 RYR7DP BHX → FAO Jul 24, 20:05 UTCJul 24, 21:45 UTC1h 40m
2026-07-24 RYR65WX NOC → STN Jul 24, 17:45 UTCJul 24, 18:55 UTC1h 10m
2026-07-24 RYR6VJ BLQ → PRG Jul 24, 15:55 UTCJul 24, 17:00 UTC1h 5m
2026-07-24 RYR30NU CDT → STN Jul 24, 12:40 UTCJul 24, 14:25 UTC1h 45m
2026-07-24 RYR43CY STN → CDT Jul 24, 09:35 UTCJul 24, 11:30 UTC1h 55m
2026-07-24 RYR4GC FUE → NRN Jul 24, 07:50 UTCJul 24, 08:40 UTC50m
2026-07-24 RYR69BY STN → DUB Jul 24, 06:00 UTCJul 24, 06:55 UTC55m
2026-07-23 RYR9CB TFS → MAN Jul 23, 18:45 UTCJul 23, 22:20 UTC3h 35m
2026-07-23 RYR63PD STN → ATH Jul 23, 14:40 UTCJul 23, 17:40 UTC3h 0m
2026-07-23 RUK90JY RAK → STN Jul 23, 10:25 UTCJul 23, 13:15 UTC2h 50m
2026-07-23 RUK19RU STN → RAK Jul 23, 06:05 UTCJul 23, 09:00 UTC2h 55m
2026-07-22 RYR857U PRG → STN Jul 22, 19:40 UTCJul 22, 21:10 UTC1h 30m
2026-07-22 RYR2FY BLQ → BCN Jul 22, 17:30 UTCJul 22, 18:55 UTC1h 25m
2026-07-22 RYR50NV LPA → CRL Jul 22, 14:45 UTCJul 22, 16:25 UTC1h 40m
2026-07-22 RYR19DM STN → MXP Jul 22, 11:50 UTCJul 22, 13:15 UTC1h 25m
2026-07-21 RYR200Z LIS → STN Jul 21, 21:05 UTCJul 21, 23:20 UTC2h 15m
2026-07-21 RYR95SN STN → LIS Jul 21, 17:50 UTCJul 21, 20:05 UTC2h 15m
2026-07-21 RYR29AM - Jul 21, 15:05 UTCJul 21, 16:35 UTC1h 30m
2026-07-21 RYR6WD - Jul 21, 12:40 UTCJul 21, 14:00 UTC1h 20m
2026-07-21 RYR70SJ VCE → STN Jul 21, 09:50 UTCJul 21, 11:45 UTC1h 55m
2026-07-21 RYR71KE STN → VCE Jul 21, 07:00 UTCJul 21, 08:40 UTC1h 40m
2026-07-20 RYR2TL - Jul 20, 20:35 UTCJul 20, 22:30 UTC1h 55m
2026-07-20 RYR67ZT - Jul 20, 17:50 UTCJul 20, 19:45 UTC1h 55m
2026-07-20 RYR92YX - Jul 20, 14:25 UTCJul 20, 17:00 UTC2h 35m
2026-07-20 RYR3DR - Jul 20, 11:30 UTCJul 20, 13:35 UTC2h 5m
2026-07-20 RYR3EV EDI → ALC Jul 20, 09:15 UTCJul 20, 10:15 UTC1h 0m
2026-07-20 RYR643J STN → NTE Jul 20, 06:05 UTCJul 20, 07:05 UTC1h 0m
2026-07-19 RYR8JV EIN → NAP Jul 19, 20:40 UTCJul 19, 23:10 UTC2h 30m
2026-07-19 RYR9145 - Jul 19, 17:15 UTCJul 19, 19:40 UTC2h 25m
2026-07-19 RYR41ZL EGC → STN Jul 19, 14:40 UTCJul 19, 16:00 UTC1h 20m
2026-07-19 RYR25DD - Jul 19, 12:35 UTCJul 19, 13:50 UTC1h 15m
2026-07-19 RYR2689 PMF → STN Jul 19, 09:45 UTCJul 19, 11:35 UTC1h 50m
2026-07-19 RYR2688 AGP → BGY Jul 19, 06:50 UTCJul 19, 08:15 UTC1h 25m
2026-07-18 RYR87XN DUB → STN Jul 18, 21:05 UTCJul 18, 21:55 UTC50m
2026-07-18 RYR497D STN → DUB Jul 18, 19:20 UTCJul 18, 20:15 UTC55m
2026-07-18 RYR15NE - Jul 18, 14:40 UTCJul 18, 18:20 UTC3h 40m
2026-07-18 RYR514B - Jul 18, 10:20 UTCJul 18, 13:35 UTC3h 15m
2026-07-18 RYR28DD TRN → STN Jul 18, 07:35 UTCJul 18, 09:10 UTC1h 35m
2026-07-18 RYR17PP - Jul 18, 05:15 UTCJul 18, 06:40 UTC1h 25m
2026-07-17 RYR5FG - Jul 17, 22:25 UTCJul 18, 01:10 UTC2h 45m
2026-07-17 RYR10LY - Jul 17, 18:29 UTCJul 17, 21:00 UTC2h 30m
2026-07-17 RYR587A - Jul 17, 14:10 UTCJul 17, 16:55 UTC2h 45m
2026-07-17 RYR9DT - Jul 17, 10:44 UTCJul 17, 13:10 UTC2h 25m
2026-07-17 RYR4BY GOT → MAN Jul 17, 08:30 UTCJul 17, 09:35 UTC1h 5m
2026-07-17 RYR28PH POZ → BRS Jul 17, 06:20 UTCJul 17, 07:14 UTC55m
2026-07-16 RYR56RR - Jul 16, 20:05 UTCJul 16, 23:05 UTC3h 0m
2026-07-16 RYR67JA - Jul 16, 16:05 UTCJul 16, 18:29 UTC2h 25m
2026-07-16 RYR29AM - Jul 16, 13:15 UTCJul 16, 14:50 UTC1h 35m
2026-07-16 RYR6WD - Jul 16, 10:04 UTCJul 16, 11:40 UTC1h 35m

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

Mode-S 4CA806 frequently asked

What is Mode-S code 4CA806?
4CA806 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-EKH.
Where is Mode-S 4CA806 registered?
Mode-S code 4CA806 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA806 broadcasting right now?
Yes. Mode-S 4CA806 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA806, octal 23124006, decimal 5,023,750.
What flights does 4CA806 operate?
Mode-S 4CA806 has broadcast 20 distinct callsigns, including RYR8DU, RYR3WD, RYR088, RYR95JY, RYR926T.