Apparatus

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sensors Mode-S transponder

4CA80B

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-EKK · BOEING 737-800

Hex
4CA80B
Octal
23124013
Decimal
5,023,755
Country
IE
Tail
EI-EKK
Type
B738
Broadcasting now · callsign RYR7819 · 125 ft
Flights observed
315
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CA80B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA80B 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
RYR908N Ryanair 3 2026-05-15
RYR88NB Ryanair 3 2026-05-15
RYR728A Ryanair 3 2026-05-23
RYR64TN Ryanair 3 2026-04-24
RYR351A Ryanair 3 2026-05-23
RYR20ZE Ryanair 3 2026-04-24
RYR100T - 3 2026-04-16
RYR9LH Ryanair 2 2026-04-17
RYR9CU Ryanair 2 2026-05-02
RYR9CA - 2 2026-04-13
RYR99TV Ryanair 2 2026-04-22
RYR95ND Ryanair 2 2026-05-28
RYR9392 - 2 2026-04-16
RYR876 - 2 2026-04-16
RYR85RT Ryanair 2 2026-05-16
RYR82DX - 2 2026-04-14
RYR81PY Ryanair 2 2026-04-18
RYR7VH Ryanair 2 2026-05-16
RYR78YR Ryanair 2 2026-05-01
RYR76GX Ryanair 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RYR7819 LTN → BCN May 30, 08:15 UTCMay 30, 08:45 UTC30m
2026-05-29 RYR870T NOC → LTN May 29, 18:00 UTCMay 29, 19:00 UTC1h 0m
2026-05-29 RYR160Z LTN → NOC May 29, 16:20 UTCMay 29, 17:20 UTC1h 0m
2026-05-29 RYR9DY EFL → FRA May 29, 11:15 UTCMay 29, 15:05 UTC3h 50m
2026-05-29 RYR94AN LTN → LPA May 29, 06:15 UTCMay 29, 09:50 UTC3h 35m
2026-05-28 RYR95ND BCN → LTN May 28, 19:50 UTCMay 28, 21:45 UTC1h 55m
2026-05-28 RYR67AJ LTN → BCN May 28, 16:50 UTCMay 28, 18:35 UTC1h 45m
2026-05-28 RYR596G FUE → LTN May 28, 07:10 UTCMay 28, 15:35 UTC8h 25m
2026-05-27 RYR4TG BRI → TIA May 27, 18:15 UTCMay 27, 19:10 UTC55m
2026-05-27 RYR856 LTN → KIR May 27, 16:20 UTCMay 27, 17:25 UTC1h 5m
2026-05-27 RYR34ZZ NAP → LTN May 27, 13:00 UTCMay 27, 15:15 UTC2h 15m
2026-05-27 RYR70FA CAG → NAP May 27, 10:25 UTCMay 27, 11:15 UTC50m
2026-05-27 RYR57YG NAP → CAG May 27, 08:40 UTCMay 27, 09:15 UTC35m
2026-05-27 RYR1661 AHO → NAP May 27, 06:25 UTCMay 27, 07:15 UTC51m
2026-05-27 RYR6TV MAN → DUB May 27, 04:45 UTCMay 27, 05:29 UTC45m
2026-05-26 RYR64CZ VNO → HHN May 26, 17:15 UTCMay 26, 18:55 UTC1h 40m
2026-05-26 RYR21LA NAP → CRL May 26, 14:40 UTCMay 26, 16:24 UTC1h 45m
2026-05-26 RYR7YM ARN → FKB May 26, 12:24 UTCMay 26, 13:24 UTC1h 0m
2026-05-26 RYR56RK NAP → MXP May 26, 10:20 UTCMay 26, 11:24 UTC1h 5m
2026-05-26 RYR6FR ALC → BRS May 26, 08:30 UTCMay 26, 08:54 UTC25m
2026-05-26 RYR738U NAP → PMO May 26, 06:54 UTCMay 26, 07:19 UTC25m
2026-05-25 RYR354V TRN → NAP May 25, 19:25 UTCMay 25, 20:34 UTC1h 10m
2026-05-25 RYR9JQ AGP → LBA May 25, 17:35 UTCMay 25, 18:35 UTC1h 0m
2026-05-25 RYR6FR ALC → BRS May 25, 15:50 UTCMay 25, 16:25 UTC35m
2026-05-25 RYR738U NAP → PMO May 25, 14:30 UTCMay 25, 14:55 UTC25m
2026-05-25 RYR70FA CAG → NAP May 25, 12:15 UTCMay 25, 13:05 UTC50m
2026-05-25 RYR57YG NAP → CAG May 25, 10:30 UTCMay 25, 10:55 UTC25m
2026-05-25 RYR79SY MXP → MAD May 25, 08:30 UTCMay 25, 09:15 UTC45m
2026-05-25 RYR76JH NAP → TIA May 25, 06:55 UTCMay 25, 07:30 UTC35m
2026-05-24 RYR40BJ MLA → MAN May 24, 19:10 UTCMay 24, 21:30 UTC2h 20m
2026-05-24 RYR89MA NAP → SVQ May 24, 15:55 UTCMay 24, 18:15 UTC2h 20m
2026-05-24 RYR1GR MAD → NAP May 24, 12:40 UTCMay 24, 14:50 UTC2h 10m
2026-05-24 RYR39DH BER → MAD May 24, 08:05 UTCMay 24, 10:40 UTC2h 35m
2026-05-24 RYR91SP MAD → BER May 24, 04:30 UTCMay 24, 07:10 UTC2h 40m
2026-05-23 RYR13SU DUB → MAD May 23, 23:00 UTCMay 24, 01:00 UTC2h 0m
2026-05-23 RYR66VE MAD → DUB May 23, 20:10 UTCMay 23, 22:10 UTC2h 0m
2026-05-23 RYR351A FEZ → MAD May 23, 17:40 UTCMay 23, 18:50 UTC1h 10m
2026-05-23 RYR728A MAD → FEZ May 23, 14:35 UTCMay 23, 15:35 UTC1h 0m
2026-05-23 RYR29KK MAH → MAD May 23, 11:25 UTCMay 23, 12:30 UTC1h 5m
2026-05-23 RYR36GA MAD → MAH May 23, 09:05 UTCMay 23, 10:15 UTC1h 10m
2026-05-23 RYR6613 - May 23, 06:45 UTCMay 23, 07:50 UTC1h 5m
2026-05-23 RYR6612 MAD → RBA May 23, 04:45 UTCMay 23, 05:55 UTC1h 10m
2026-05-22 RYR4295 MAH → MAD May 22, 21:35 UTCMay 22, 22:35 UTC1h 0m
2026-05-22 RYR8RL STN → TRN May 22, 19:40 UTCMay 22, 20:50 UTC1h 10m
2026-05-22 RYR374M REU → DUB May 22, 17:30 UTCMay 22, 18:25 UTC55m
2026-05-22 RYR76GX TRN → OPO May 22, 15:30 UTCMay 22, 16:30 UTC1h 0m
2026-05-22 RYR5SK STN → TLL May 22, 12:00 UTCMay 22, 13:10 UTC1h 10m
2026-05-22 RYR96XU MAD → RAK May 22, 08:30 UTCMay 22, 09:50 UTC1h 20m
2026-05-22 RYR84QF PMI → MAD May 22, 06:10 UTCMay 22, 07:00 UTC50m
2026-05-22 RYR1YU LDE → MLA May 22, 04:00 UTCMay 22, 05:00 UTC1h 0m

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

Mode-S 4CA80B frequently asked

What is Mode-S code 4CA80B?
4CA80B is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-EKK.
Where is Mode-S 4CA80B registered?
Mode-S code 4CA80B is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA80B broadcasting right now?
Yes. Mode-S 4CA80B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA80B, octal 23124013, decimal 5,023,755.
What flights does 4CA80B operate?
Mode-S 4CA80B has broadcast 20 distinct callsigns, including RYR908N, RYR88NB, RYR728A, RYR64TN, RYR351A.