Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
No current signal · last broadcast 1h ago
Flights observed
264
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4CA806.

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
RYR3WD Ryanair 4 2026-05-27
RYR088 Ryanair 4 2026-05-27
RYR70FA Ryanair 3 2026-05-08
RYR6HL Ryanair 3 2026-05-11
RYR5VJ Ryanair 3 2026-06-05
RYR57YG Ryanair 3 2026-05-08
RYR48MU Ryanair 3 2026-06-05
RYR97CB Ryanair 2 2026-06-04
RYR95JY Ryanair 2 2026-06-08
RYR926T Ryanair 2 2026-06-08
RYR916W Ryanair 2 2026-05-18
RYR88SA Ryanair 2 2026-06-07
RYR8618 - 2 2026-05-30
RYR78VZ Ryanair 2 2026-06-04
RYR738U Ryanair 2 2026-05-06
RYR6FR Ryanair 2 2026-05-06
RYR67XW Ryanair 2 2026-05-13
RYR60PR Ryanair 2 2026-05-10
RYR5GY Ryanair 2 2026-06-07
RYR5GE Ryanair 2 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-09 RYR89YN ARN → GDN Jun 9, 19:10 UTCJun 9, 20:25 UTC1h 15m
2026-06-09 RYR71ZY MRS → ARN Jun 9, 14:15 UTCJun 9, 18:35 UTC4h 20m
2026-06-09 RYR970Y ARN → MRS Jun 9, 10:20 UTCJun 9, 13:15 UTC2h 55m
2026-06-09 RYR24NN FKB → ARN Jun 9, 07:05 UTCJun 9, 09:05 UTC2h 0m
2026-06-08 RYR9WD ZAD → STN Jun 8, 19:20 UTCJun 8, 20:55 UTC1h 35m
2026-06-08 RYR1WZ DUB → STN Jun 8, 16:50 UTCJun 8, 18:15 UTC1h 25m
2026-06-08 RYR926T STN → FKB Jun 8, 14:40 UTCJun 8, 15:40 UTC1h 0m
2026-06-08 RYR95JY FKB → STN Jun 8, 12:40 UTCJun 8, 13:45 UTC1h 5m
2026-06-08 RYR28PF SVQ → FKB Jun 8, 09:00 UTCJun 8, 11:15 UTC2h 15m
2026-06-08 RYR28XE FKB → SVQ Jun 8, 05:50 UTCJun 8, 08:15 UTC2h 25m
2026-06-07 RYR1DA TFS → BER Jun 7, 17:50 UTCJun 7, 19:00 UTC1h 10m
2026-06-07 RYR5GE MAN → MAD Jun 7, 15:45 UTCJun 7, 16:45 UTC1h 0m
2026-06-07 RYR39WL ALC → FKB Jun 7, 13:05 UTCJun 7, 15:00 UTC1h 55m
2026-06-07 RYR88SA FKB → ALC Jun 7, 10:05 UTCJun 7, 12:00 UTC1h 55m
2026-06-07 RYR29RV PMI → FKB Jun 7, 07:30 UTCJun 7, 09:05 UTC1h 35m
2026-06-07 RYR5GY LTN → MLA Jun 7, 04:50 UTCJun 7, 06:35 UTC1h 45m
2026-06-06 RYR9532 - Jun 6, 18:00 UTCJun 6, 20:10 UTC2h 10m
2026-06-06 RYR9533 FKB → BBU Jun 6, 15:05 UTCJun 6, 16:55 UTC1h 50m
2026-06-06 RYR4733 BGY → BER Jun 6, 10:50 UTCJun 6, 12:20 UTC1h 30m
2026-06-06 RYR35CB NTE → DUB Jun 6, 08:50 UTCJun 6, 10:00 UTC1h 10m
2026-06-06 RYR9211 GRO → FKB Jun 6, 06:25 UTCJun 6, 07:40 UTC1h 15m
2026-06-06 RYR1CQ MRS → ALC Jun 6, 04:10 UTCJun 6, 05:30 UTC1h 20m
2026-06-05 RYR29RV PMI → FKB Jun 5, 19:25 UTCJun 5, 21:00 UTC1h 35m
2026-06-05 RYR5GY LTN → MLA Jun 5, 16:40 UTCJun 5, 18:10 UTC1h 30m
2026-06-05 RYR48MU VLC → FKB Jun 5, 13:55 UTCJun 5, 15:55 UTC2h 0m
2026-06-05 RYR5VJ BOD → OPO Jun 5, 11:10 UTCJun 5, 13:00 UTC1h 50m
2026-06-05 RYR732U AGP → FKB Jun 5, 07:40 UTCJun 5, 10:05 UTC2h 25m
2026-06-05 RYR95LU FKB → AGP Jun 5, 04:05 UTCJun 5, 06:25 UTC2h 20m
2026-06-04 RYR5076 SUF → FKB Jun 4, 18:50 UTCJun 4, 20:35 UTC1h 45m
2026-06-04 RYR38JR TPS → STN Jun 4, 16:15 UTCJun 4, 18:00 UTC1h 45m
2026-06-04 RYR97CB OPO → FKB Jun 4, 13:10 UTCJun 4, 15:10 UTC2h 0m
2026-06-04 RYR78VZ AGP → NRN Jun 4, 09:45 UTCJun 4, 12:15 UTC2h 30m
2026-06-04 RYR1648 BNX → FKB Jun 4, 07:30 UTCJun 4, 08:50 UTC1h 20m
2026-06-04 RYR1649 FKB → BNX Jun 4, 05:30 UTCJun 4, 06:30 UTC1h 0m
2026-06-03 RYR97CB OPO → FKB Jun 3, 18:45 UTCJun 3, 20:50 UTC2h 5m
2026-06-03 RYR78VZ AGP → NRN Jun 3, 13:45 UTCJun 3, 16:05 UTC2h 20m
2026-06-03 RYR1DA TFS → BER Jun 3, 11:25 UTCJun 3, 12:40 UTC1h 15m
2026-06-03 RYR5196 FKB → ZAD Jun 3, 10:05 UTCJun 3, 10:30 UTC25m
2026-06-03 RYR5GE MAN → MAD Jun 3, 05:15 UTCJun 3, 07:10 UTC1h 55m
2026-06-02 RYR21VN STN → FKB Jun 2, 18:50 UTCJun 2, 19:50 UTC1h 0m
2026-06-02 RYR6JR FKB → STN Jun 2, 17:00 UTCJun 2, 18:00 UTC1h 0m
2026-06-02 RYR48MU VLC → FKB Jun 2, 13:50 UTCJun 2, 15:50 UTC2h 0m
2026-06-02 RYR5VJ BOD → OPO Jun 2, 10:50 UTCJun 2, 12:45 UTC1h 55m
2026-06-02 RYR926T STN → FKB Jun 2, 08:50 UTCJun 2, 09:55 UTC1h 5m
2026-06-02 RYR95JY FKB → STN Jun 2, 06:35 UTCJun 2, 07:35 UTC1h 0m
2026-06-01 RYR48MU VLC → FKB Jun 1, 18:35 UTCJun 1, 20:25 UTC1h 50m
2026-06-01 RYR5VJ BOD → OPO Jun 1, 15:50 UTCJun 1, 17:45 UTC1h 55m
2026-06-01 RYR5076 SUF → FKB Jun 1, 13:10 UTCJun 1, 15:05 UTC1h 55m
2026-06-01 RYR38JR TPS → STN Jun 1, 10:40 UTCJun 1, 12:20 UTC1h 40m
2026-06-01 RYR39WL ALC → FKB Jun 1, 07:30 UTCJun 1, 09:45 UTC2h 15m

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?
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 4CA806, octal 23124006, decimal 5,023,750.
What flights does 4CA806 operate?
Mode-S 4CA806 has broadcast 20 distinct callsigns, including RYR3WD, RYR088, RYR70FA, RYR6HL, RYR5VJ.