Apparatus

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sensors Mode-S transponder

4CAFD2

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-GXM · BOEING 737-800

Hex
4CAFD2
Octal
23127722
Decimal
5,025,746
Country
IE
Tail
EI-GXM
Type
B738
Transponder active on ground
Flights observed
298
Distinct callsigns
20
Country
IE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4CAFD2.

Country allocation

The ICAO 24-bit address 4CAFD2 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
RYR088 Ryanair 7 2026-06-13
RYR3WD - 6 2026-06-13
RYR385 Ryanair 4 2026-06-09
RYR384 Ryanair 4 2026-06-10
RYR100T - 4 2026-05-15
RYR49CP - 3 2026-05-30
RYR423B Ryanair 3 2026-05-29
RYR3029 Ryanair 3 2026-05-25
RYR3028 Ryanair 3 2026-05-25
RYR1WX Ryanair 3 2026-05-29
RYR9GB Ryanair 2 2026-05-09
RYR9EG Ryanair 2 2026-05-24
RYR9489 Ryanair 2 2026-05-30
RYR8SK Ryanair 2 2026-05-09
RYR8AA Ryanair 2 2026-05-25
RYR8593 Ryanair 2 2026-05-29
RYR8592 Ryanair 2 2026-05-29
RYR84AV Ryanair 2 2026-05-23
RYR7W Ryanair 2 2026-05-25
RYR7GJ Ryanair 2 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 RYR72ZY EMA → ALC Jun 13, 11:55 UTCJun 13, 13:50 UTC1h 55m
2026-06-13 RYR3WD FNC → LIS Jun 13, 09:40 UTCJun 13, 11:00 UTC1h 20m
2026-06-13 RYR088 EMA → CFU Jun 13, 07:05 UTCJun 13, 08:50 UTC1h 45m
2026-06-12 RYR3WD FNC → LIS Jun 12, 19:20 UTCJun 12, 20:40 UTC1h 20m
2026-06-12 RYR088 EMA → CFU Jun 12, 17:00 UTCJun 12, 18:25 UTC1h 25m
2026-06-12 RYR5KT MRS → LIS Jun 12, 13:55 UTCJun 12, 15:55 UTC2h 0m
2026-06-12 RYR1LX FEZ → CFE Jun 12, 11:00 UTCJun 12, 12:55 UTC1h 55m
2026-06-12 RYR20EE VLC → LIS Jun 12, 08:35 UTCJun 12, 09:55 UTC1h 20m
2026-06-12 RYR2BX JTR → MXP Jun 12, 06:00 UTCJun 12, 07:10 UTC1h 10m
2026-06-11 RYR9PX SVQ → LIS Jun 11, 21:30 UTCJun 11, 22:10 UTC40m
2026-06-11 RYR3628 LIS → SVQ Jun 11, 20:05 UTCJun 11, 20:50 UTC45m
2026-06-11 RYR56BR KUN → LPL Jun 11, 16:50 UTCJun 11, 19:15 UTC2h 25m
2026-06-11 RYR51DR BRI → ZAD Jun 11, 13:15 UTCJun 11, 15:40 UTC2h 25m
2026-06-11 RYR95SN STN → LIS Jun 11, 08:30 UTCJun 11, 10:55 UTC2h 25m
2026-06-11 RYR200Z LIS → STN Jun 11, 05:10 UTCJun 11, 07:35 UTC2h 25m
2026-06-10 RYR668T BCN → BGY Jun 10, 14:25 UTCJun 10, 17:00 UTC2h 35m
2026-06-10 RYR990N LIS → EDI Jun 10, 10:25 UTCJun 10, 13:20 UTC2h 55m
2026-06-10 RYR3WD EDI → GDN Jun 10, 08:00 UTCJun 10, 09:25 UTC1h 25m
2026-06-10 RYR088 EMA → CFU Jun 10, 07:05 UTCJun 10, 07:20 UTC15m
2026-06-10 RYR088 EMA → CFU Jun 10, 05:55 UTCJun 10, 06:25 UTC30m
2026-06-10 RYR384 FNC → LIS Jun 10, 00:20 UTCJun 10, 01:40 UTC1h 20m
2026-06-09 RYR390 WRO → KRK Jun 9, 23:10 UTCJun 9, 23:30 UTC20m
2026-06-09 RYR390 WRO → KRK Jun 9, 22:05 UTCJun 9, 22:35 UTC30m
2026-06-09 RYR385 LIS → FNC Jun 9, 19:35 UTCJun 9, 21:20 UTC1h 45m
2026-06-09 RYR5KT MRS → LIS Jun 9, 14:45 UTCJun 9, 18:10 UTC3h 25m
2026-06-09 RYR1LX FEZ → CFE Jun 9, 12:00 UTCJun 9, 13:45 UTC1h 45m
2026-06-09 RYR3WD EDI → GDN Jun 9, 08:15 UTCJun 9, 09:35 UTC1h 20m
2026-06-09 RYR088 EMA → CFU Jun 9, 05:50 UTCJun 9, 07:15 UTC1h 25m
2026-06-08 RYR384 FNC → LIS Jun 8, 23:00 UTCJun 9, 00:15 UTC1h 15m
2026-06-08 RYR385 LIS → FNC Jun 8, 20:25 UTCJun 8, 21:50 UTC1h 25m
2026-06-08 RYR56BR KUN → LPL Jun 8, 16:30 UTCJun 8, 19:20 UTC2h 50m
2026-06-08 RYR51DR BRI → ZAD Jun 8, 13:10 UTCJun 8, 15:35 UTC2h 25m
2026-06-08 RYR7GJ DBV → DUB Jun 8, 09:10 UTCJun 8, 11:35 UTC2h 25m
2026-06-08 RYR22UT LIS → DUB Jun 8, 06:00 UTCJun 8, 08:10 UTC2h 10m
2026-06-07 RYR32KG TLS → LIS Jun 7, 20:40 UTCJun 7, 22:20 UTC1h 40m
2026-06-07 RYR693D LIS → TLS Jun 7, 18:15 UTCJun 7, 19:45 UTC1h 30m
2026-06-07 RYR384 FNC → LIS Jun 7, 14:55 UTCJun 7, 16:15 UTC1h 20m
2026-06-07 RYR385 LIS → FNC Jun 7, 12:40 UTCJun 7, 14:05 UTC1h 25m
2026-06-07 RYR7GJ DBV → DUB Jun 7, 08:25 UTCJun 7, 10:45 UTC2h 20m
2026-06-07 RYR22UT LIS → DUB Jun 7, 05:10 UTCJun 7, 07:30 UTC2h 20m
2026-06-06 RYR384 FNC → LIS Jun 6, 21:00 UTCJun 6, 22:15 UTC1h 15m
2026-06-06 RYR385 LIS → FNC Jun 6, 18:00 UTCJun 6, 19:24 UTC1h 25m
2026-06-06 RYR55AR BVA → LIS Jun 6, 14:20 UTCJun 6, 16:24 UTC2h 5m
2026-06-06 RYR72ZY EMA → ALC Jun 6, 11:25 UTCJun 6, 13:20 UTC1h 55m
2026-06-06 RYR3WD EDI → GDN Jun 6, 09:04 UTCJun 6, 10:30 UTC1h 25m
2026-06-06 RYR088 EMA → CFU Jun 6, 06:40 UTCJun 6, 08:05 UTC1h 25m
2026-06-05 RYR3WD EDI → GDN Jun 5, 18:50 UTCJun 5, 20:15 UTC1h 25m
2026-06-05 RYR088 EMA → CFU Jun 5, 16:40 UTCJun 5, 18:05 UTC1h 25m
2026-06-05 RYR12SN MRS → MLA Jun 5, 11:15 UTCJun 5, 14:00 UTC2h 45m
2026-06-05 RYR9CZ BER → VNO Jun 5, 07:10 UTCJun 5, 09:45 UTC2h 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-GXM page for operator, model, and routing details .

Mode-S 4CAFD2 frequently asked

What is Mode-S code 4CAFD2?
4CAFD2 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-GXM.
Where is Mode-S 4CAFD2 registered?
Mode-S code 4CAFD2 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAFD2 broadcasting right now?
Mode-S 4CAFD2 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAFD2, octal 23127722, decimal 5,025,746.
What flights does 4CAFD2 operate?
Mode-S 4CAFD2 has broadcast 20 distinct callsigns, including RYR088, RYR3WD, RYR385, RYR384, RYR100T.