Apparatus

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sensors Mode-S transponder

4CAFD3

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-GXN · BOEING 737-800

Hex
4CAFD3
Octal
23127723
Decimal
5,025,747
Country
IE
Tail
EI-GXN
Type
B738
No current signal · last broadcast 5h ago
Flights observed
206
Distinct callsigns
20
Country
IE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4CAFD3.

Country allocation

The ICAO 24-bit address 4CAFD3 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 10 2026-04-22
RYR088 Ryanair 10 2026-04-22
RYR385 Ryanair 6 2026-04-21
RYR384 Ryanair 6 2026-04-21
RYR5KT - 5 2026-04-21
RYR1LX Ryanair 5 2026-04-21
RYR990N Ryanair 4 2026-04-22
RYR668T Ryanair 4 2026-04-22
RYR9PX Ryanair 3 2026-04-20
RYR498R Ryanair 3 2026-04-20
RYR3RB Ryanair 3 2026-04-16
RYR29TL Ryanair 3 2026-04-20
RYR95SN Ryanair 2 2026-04-20
RYR89XA Ryanair 2 2026-04-30
RYR7UN Ryanair 2 2026-05-28
RYR7DM Ryanair 2 2026-05-26
RYR76ZW - 2 2026-04-16
RYR73KY Ryanair 2 2026-05-29
RYR7352 Ryanair 2 2026-05-26
RYR61SV Ryanair 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 RYR424D NCL → ALC May 29, 21:10 UTCMay 29, 23:20 UTC2h 10m
2026-05-29 RYR7PG CIA → WMI May 29, 18:25 UTCMay 29, 20:30 UTC2h 5m
2026-05-29 RYR3759 CPH → EDI May 29, 15:45 UTCMay 29, 17:20 UTC1h 35m
2026-05-29 RYR72VF EDI → CPH May 29, 13:05 UTCMay 29, 14:40 UTC1h 35m
2026-05-29 RYR73KY BCN → EDI May 29, 08:55 UTCMay 29, 11:20 UTC2h 25m
2026-05-29 RYR36PL EDI → BCN May 29, 05:10 UTCMay 29, 07:40 UTC2h 30m
2026-05-28 RYR8UL AGP → OPO May 28, 21:40 UTCMay 28, 22:15 UTC35m
2026-05-28 RYR86GY EDI → DUB May 28, 20:05 UTCMay 28, 20:50 UTC45m
2026-05-28 RYR6BK LTN → NOC May 28, 16:25 UTCMay 28, 19:00 UTC2h 35m
2026-05-28 RYR211Y EDI → PMI May 28, 12:15 UTCMay 28, 14:45 UTC2h 30m
2026-05-28 RYR43MW RIX → EDI May 28, 08:10 UTCMay 28, 10:40 UTC2h 30m
2026-05-28 RYR7UN STN → LDE May 28, 04:50 UTCMay 28, 07:00 UTC2h 10m
2026-05-27 RYR44UC FAO → EDI May 27, 20:35 UTCMay 27, 23:25 UTC2h 50m
2026-05-27 RYR66AH EDI → FAO May 27, 16:50 UTCMay 27, 19:45 UTC2h 55m
2026-05-27 RYR47MZ BVA → EDI May 27, 14:00 UTCMay 27, 15:10 UTC1h 10m
2026-05-27 RYR22MB EDI → BVA May 27, 12:00 UTCMay 27, 13:15 UTC1h 15m
2026-05-27 RYR4ZG CRL → CDT May 27, 08:40 UTCMay 27, 10:55 UTC2h 15m
2026-05-27 RYR71KY EDI → WRO May 27, 05:49 UTCMay 27, 07:40 UTC1h 50m
2026-05-26 RYR6VC MAD → MAN May 26, 20:50 UTCMay 26, 23:14 UTC2h 25m
2026-05-26 RYR55HD CHQ → MAN May 26, 17:39 UTCMay 26, 19:45 UTC2h 5m
2026-05-26 RYR362U CRL → EDI May 26, 15:24 UTCMay 26, 16:45 UTC1h 20m
2026-05-26 RYR7352 EDI → CRL May 26, 13:04 UTCMay 26, 14:30 UTC1h 25m
2026-05-26 RYR22PG RZE → EDI May 26, 09:09 UTCMay 26, 11:50 UTC2h 40m
2026-05-26 RYR7DM BVA → AGA May 26, 05:49 UTCMay 26, 08:10 UTC2h 20m
2026-05-25 RYR7891 BUD → EDI May 25, 20:09 UTCMay 25, 22:44 UTC2h 35m
2026-05-25 RYR7892 EDI → BUD May 25, 16:50 UTCMay 25, 19:15 UTC2h 25m
2026-05-25 RYR156P ORK → EDI May 25, 12:50 UTCMay 25, 13:45 UTC55m
2026-05-25 RYR8VP BVE → OPO May 25, 11:15 UTCMay 25, 12:10 UTC55m
2026-05-25 RYR59VR TLS → EDI May 25, 08:05 UTCMay 25, 10:10 UTC2h 5m
2026-05-25 RYR2LK STN → BGY May 25, 05:00 UTCMay 25, 07:00 UTC2h 0m
2026-05-24 RYR43MW RIX → EDI May 24, 19:20 UTCMay 24, 21:50 UTC2h 30m
2026-05-24 RYR7UN STN → LDE May 24, 16:25 UTCMay 24, 18:30 UTC2h 5m
2026-05-24 RYR362U CRL → EDI May 24, 14:15 UTCMay 24, 15:35 UTC1h 20m
2026-05-24 RYR7352 EDI → CRL May 24, 11:55 UTCMay 24, 13:15 UTC1h 20m
2026-05-24 RYR67BD KUN → AGP May 24, 08:00 UTCMay 24, 10:45 UTC2h 45m
2026-05-24 RYR30GY EDI → BUD May 24, 04:50 UTCMay 24, 07:10 UTC2h 20m
2026-05-23 RYR47MZ BVA → EDI May 23, 20:45 UTCMay 23, 22:00 UTC1h 15m
2026-05-23 RYR22MB EDI → BVA May 23, 18:35 UTCMay 23, 19:45 UTC1h 10m
2026-05-23 RYR9BN VIE → EDI May 23, 15:25 UTCMay 23, 17:45 UTC2h 20m
2026-05-23 RYR716A EDI → VIE May 23, 12:20 UTCMay 23, 14:35 UTC2h 15m
2026-05-23 RYR72PP PMO → BCN May 23, 08:55 UTCMay 23, 11:25 UTC2h 30m
2026-05-23 RYR28TV EDI → PSA May 23, 05:40 UTCMay 23, 07:55 UTC2h 15m
2026-05-22 RYR4AR STN → PFO May 22, 19:50 UTCMay 22, 23:30 UTC3h 40m
2026-05-22 RYR4ZZ KRK → ARN May 22, 14:10 UTCMay 22, 18:20 UTC4h 10m
2026-05-22 RYR7FJ SJJ → CRL May 22, 10:25 UTCMay 22, 13:10 UTC2h 45m
2026-05-22 RYR62EG EDI → AGP May 22, 06:05 UTCMay 22, 09:05 UTC3h 0m
2026-05-21 RYR7845 CFU → EDI May 21, 20:25 UTCMay 21, 23:55 UTC3h 30m
2026-05-21 RYR7844 EDI → CFU May 21, 16:05 UTCMay 21, 19:05 UTC3h 0m
2026-05-21 RYR8G BUD → ATH May 21, 08:55 UTCMay 21, 11:50 UTC2h 55m
2026-05-21 RYR9XB STN → BGY May 21, 05:35 UTCMay 21, 08:00 UTC2h 25m

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

Mode-S 4CAFD3 frequently asked

What is Mode-S code 4CAFD3?
4CAFD3 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-GXN.
Where is Mode-S 4CAFD3 registered?
Mode-S code 4CAFD3 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAFD3 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAFD3, octal 23127723, decimal 5,025,747.
What flights does 4CAFD3 operate?
Mode-S 4CAFD3 has broadcast 20 distinct callsigns, including RYR3WD, RYR088, RYR385, RYR384, RYR5KT.