Apparatus

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sensors Mode-S transponder

4CA8D8

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-ENM · BOEING 737-800

Hex
4CA8D8
Octal
23124330
Decimal
5,023,960
Country
IE
Tail
EI-ENM
Type
B738
Broadcasting now · callsign RYR5369 · 23,200 ft
Flights observed
279
Distinct callsigns
20
Country
IE
Last broadcast
10h ago

Current position

4CA8D8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA8D8 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
RYR86FZ Ryanair 3 2026-05-14
RYR7VB Ryanair 3 2026-05-14
RYR68GQ - 3 2026-05-13
RYR2RM Ryanair 3 2026-04-26
RYR13TR - 3 2026-04-13
RYR12EE Ryanair 3 2026-05-02
RYR9KG Ryanair 2 2026-04-25
RYR89UQ Ryanair 2 2026-04-16
RYR89PT Ryanair 2 2026-05-07
RYR8978 Ryanair 2 2026-05-13
RYR877F Ryanair 2 2026-05-08
RYR81TF - 2 2026-04-17
RYR80DH Ryanair 2 2026-04-17
RYR7EM Ryanair 2 2026-04-25
RYR71KE - 2 2026-04-14
RYR70SJ - 2 2026-04-14
RYR70ED Ryanair 2 2026-05-10
RYR6WD Ryanair 2 2026-04-14
RYR6811 Ryanair 2 2026-04-16
RYR66GL Ryanair 2 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 RYR1PM DUB → BRI May 29, 16:55 UTCMay 29, 19:05 UTC2h 10m
2026-05-29 RYR8332 NRN → TIA May 29, 13:50 UTCMay 29, 15:50 UTC2h 0m
2026-05-29 RYR7YT STN → BLQ May 29, 10:40 UTCMay 29, 13:00 UTC2h 20m
2026-05-29 RYR65SH NRN → ALC May 29, 06:20 UTCMay 29, 08:25 UTC2h 5m
2026-05-28 RYR5687 EDI → NRN May 28, 19:45 UTCMay 28, 20:55 UTC1h 10m
2026-05-28 RYR5DF NRN → EDI May 28, 17:15 UTCMay 28, 18:30 UTC1h 15m
2026-05-28 RYR87RV PMI → NRN May 28, 14:30 UTCMay 28, 16:30 UTC2h 0m
2026-05-28 RYR7SR EMA → RIX May 28, 11:50 UTCMay 28, 13:20 UTC1h 30m
2026-05-28 RYR76MJ PMI → FKB May 28, 09:20 UTCMay 28, 11:00 UTC1h 40m
2026-05-28 RYR388G FCO → PMI May 28, 07:00 UTCMay 28, 08:15 UTC1h 15m
2026-05-28 RYR7198 PMI → FCO May 28, 04:35 UTCMay 28, 05:50 UTC1h 15m
2026-05-27 RYR89SN ALC → EXT May 27, 21:30 UTCMay 27, 23:10 UTC1h 40m
2026-05-27 RYR771X STN → BTS May 27, 18:50 UTCMay 27, 20:40 UTC1h 50m
2026-05-27 RYR9QV NUE → SVQ May 27, 16:35 UTCMay 27, 17:50 UTC1h 15m
2026-05-27 RYR352 RHO → BER May 27, 14:30 UTCMay 27, 15:45 UTC1h 15m
2026-05-27 RYR97BR GOT → PMI May 27, 10:30 UTCMay 27, 13:15 UTC2h 45m
2026-05-27 RYR2BG LDE → CIA May 27, 06:40 UTCMay 27, 09:35 UTC2h 56m
2026-05-26 RYR7184 HAM → PMI May 26, 17:39 UTCMay 26, 19:50 UTC2h 10m
2026-05-26 RYR9MR NOC → BRS May 26, 14:24 UTCMay 26, 16:45 UTC2h 20m
2026-05-26 RYR8XC LUX → STN May 26, 10:50 UTCMay 26, 12:45 UTC1h 55m
2026-05-26 RYR88PX PMI → CRL May 26, 08:15 UTCMay 26, 09:59 UTC1h 45m
2026-05-26 RYR6362 BCN → PMI May 26, 06:04 UTCMay 26, 06:54 UTC50m
2026-05-26 RYR6361 PMI → BCN May 26, 04:15 UTCMay 26, 04:39 UTC25m
2026-05-25 RYR7GD RMU → MAN May 25, 20:04 UTCMay 25, 22:10 UTC2h 5m
2026-05-25 RYR4T FNI → DUB May 25, 15:25 UTCMay 25, 17:30 UTC2h 5m
2026-05-25 RYR463 TFS → NUE May 25, 14:00 UTCMay 25, 14:35 UTC35m
2026-05-25 RYR4 EMA → EMA May 25, 07:15 UTCMay 25, 12:35 UTC5h 20m
2026-05-24 RYR31FT FEZ → NRN May 24, 18:20 UTCMay 24, 20:55 UTC2h 35m
2026-05-24 RYR74HK STN → PMO May 24, 15:00 UTCMay 24, 17:25 UTC2h 25m
2026-05-24 RYR3BW AOI → NRN May 24, 13:00 UTCMay 24, 13:55 UTC55m
2026-05-24 RYR3LC STN → DUB May 24, 10:40 UTCMay 24, 11:30 UTC50m
2026-05-24 RYR3YW BCN → BHX May 24, 08:10 UTCMay 24, 09:25 UTC1h 15m
2026-05-24 RYR7QZ CRL → OPO May 24, 05:55 UTCMay 24, 07:15 UTC1h 20m
2026-05-23 RYR9LD DUB → BRU May 23, 18:20 UTCMay 23, 21:20 UTC3h 0m
2026-05-23 RYR4HH LPA → FKB May 23, 14:50 UTCMay 23, 17:30 UTC2h 40m
2026-05-23 RYR7CQ BUD → CTA May 23, 12:25 UTCMay 23, 13:50 UTC1h 25m
2026-05-23 RYR11GQ STN → PRG May 23, 10:10 UTCMay 23, 11:40 UTC1h 30m
2026-05-23 RYR422 STN → VNO May 23, 06:20 UTCMay 23, 08:40 UTC2h 20m
2026-05-17 RYR987 BLL → TPS May 17, 18:50 UTCMay 17, 20:50 UTC2h 0m
2026-05-17 RYR56VF NAP → BGY May 17, 16:50 UTCMay 17, 17:50 UTC1h 0m
2026-05-17 RYR98RD BGY → NAP May 17, 15:01 UTCMay 17, 15:45 UTC45m
2026-05-17 RYR43PX MAN → BGY May 17, 11:55 UTCMay 17, 13:05 UTC1h 10m
2026-05-17 RYR65SB BGY → TPS May 17, 09:35 UTCMay 17, 10:35 UTC1h 0m
2026-05-17 RYR3KJ OPO → BGY May 17, 06:15 UTCMay 17, 08:20 UTC2h 5m
2026-05-16 RYR3LQ PFO → SKG May 16, 20:55 UTCMay 16, 21:55 UTC1h 0m
2026-05-16 RYR40JE POZ → DUB May 16, 19:00 UTCMay 16, 20:00 UTC1h 0m
2026-05-16 RYR38MP CRL → OPO May 16, 16:05 UTCMay 16, 18:05 UTC2h 0m
2026-05-16 RYR1RN MLA → FCO May 16, 13:15 UTCMay 16, 15:10 UTC1h 55m
2026-05-16 RYR5HZ BDS → TRN May 16, 10:11 UTCMay 16, 12:11 UTC2h 0m
2026-05-16 RYR8E ODS → BLQ May 16, 06:35 UTCMay 16, 08:41 UTC2h 5m

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

Mode-S 4CA8D8 frequently asked

What is Mode-S code 4CA8D8?
4CA8D8 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-ENM.
Where is Mode-S 4CA8D8 registered?
Mode-S code 4CA8D8 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA8D8 broadcasting right now?
Yes. Mode-S 4CA8D8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA8D8, octal 23124330, decimal 5,023,960.
What flights does 4CA8D8 operate?
Mode-S 4CA8D8 has broadcast 20 distinct callsigns, including RYR86FZ, RYR7VB, RYR68GQ, RYR2RM, RYR13TR.