Apparatus

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sensors Mode-S transponder

4CAD54

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HGV · BOEING 737 MAX 8

Hex
4CAD54
Octal
23126524
Decimal
5,025,108
Country
IE
Tail
EI-HGV
Type
B38M
No current signal · last broadcast 3h ago
Flights observed
264
Distinct callsigns
20
Country
IE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4CAD54.

Country allocation

The ICAO 24-bit address 4CAD54 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
RYR6UR Ryanair 4 2026-05-12
RYR34LM - 4 2026-04-15
RYR98SG Ryanair 3 2026-05-11
RYR8AL Ryanair 3 2026-05-21
RYR7SW Ryanair 3 2026-04-15
RYR78HC Ryanair 3 2026-04-18
RYR75VP Ryanair 3 2026-05-21
RYR47UY - 3 2026-04-13
RYR44SB Ryanair 3 2026-05-26
RYR97ZH - 2 2026-04-14
RYR94VL Ryanair 2 2026-04-18
RYR9267 Ryanair 2 2026-05-08
RYR9266 Ryanair 2 2026-05-08
RYR90SF Ryanair 2 2026-05-27
RYR8ZW Ryanair 2 2026-04-22
RYR88ZF Ryanair 2 2026-05-08
RYR84KM Ryanair 2 2026-05-23
RYR81WZ Ryanair 2 2026-05-08
RYR80NW Ryanair 2 2026-05-26
RYR7VV Ryanair 2 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 RYR8ZP FCO → DUB May 29, 19:05 UTCMay 29, 21:45 UTC2h 40m
2026-05-29 RYR93SP DUB → FCO May 29, 15:20 UTCMay 29, 17:55 UTC2h 35m
2026-05-29 RYR7ZW RZE → LTN May 29, 13:05 UTCMay 29, 14:10 UTC1h 5m
2026-05-29 RYR5UJ BLQ → BOD May 29, 10:50 UTCMay 29, 11:55 UTC1h 5m
2026-05-29 RYR60LN CCF → DUB May 29, 07:55 UTCMay 29, 09:45 UTC1h 50m
2026-05-29 RYR90RJ PSA → BDS May 29, 05:10 UTCMay 29, 07:00 UTC1h 50m
2026-05-28 RYR9289 BDS → DUB May 28, 21:35 UTCMay 29, 00:40 UTC3h 5m
2026-05-28 RYR9288 DUB → BDS May 28, 17:40 UTCMay 28, 20:40 UTC3h 0m
2026-05-28 RYR6MK REG → BCN May 28, 13:50 UTCMay 28, 16:20 UTC2h 30m
2026-05-28 RYR9NN PMO → CAG May 28, 10:05 UTCMay 28, 12:40 UTC2h 35m
2026-05-28 RYR9MP BGY → LPL May 28, 08:05 UTCMay 28, 09:00 UTC55m
2026-05-28 RYR38SX DUB → BHX May 28, 06:15 UTCMay 28, 06:55 UTC40m
2026-05-27 RYR5243 BJV → DUB May 27, 20:20 UTCMay 28, 00:35 UTC4h 15m
2026-05-27 RYR3KL ALC → BHX May 27, 14:55 UTCMay 27, 18:55 UTC4h 0m
2026-05-27 RYR165E MAD → DUB May 27, 11:15 UTCMay 27, 13:15 UTC2h 0m
2026-05-27 RYR90SF DUB → MAD May 27, 07:30 UTCMay 27, 09:40 UTC2h 10m
2026-05-27 RYR51YC LTN → DUB May 27, 05:24 UTCMay 27, 06:20 UTC55m
2026-05-26 RYR44SB KRK → LTN May 26, 17:09 UTCMay 26, 19:15 UTC2h 5m
2026-05-26 RYR80NW LTN → KRK May 26, 14:20 UTCMay 26, 16:10 UTC1h 50m
2026-05-26 RYR77RN MLA → LTN May 26, 10:14 UTCMay 26, 13:10 UTC2h 55m
2026-05-26 RYR8CR BLQ → CRL May 26, 06:10 UTCMay 26, 09:04 UTC2h 55m
2026-05-25 RYR870T NOC → LTN May 25, 18:00 UTCMay 25, 19:00 UTC1h 0m
2026-05-25 RYR160Z LTN → NOC May 25, 16:15 UTCMay 25, 17:15 UTC1h 0m
2026-05-25 RYR9DY EFL → FRA May 25, 11:25 UTCMay 25, 15:10 UTC3h 45m
2026-05-25 RYR94AN LTN → LPA May 25, 06:15 UTCMay 25, 09:50 UTC3h 35m
2026-05-24 RYR34ZZ NAP → LTN May 24, 19:45 UTCMay 24, 21:45 UTC2h 0m
2026-05-24 RYR12KF LTN → NAP May 24, 16:30 UTCMay 24, 18:35 UTC2h 5m
2026-05-24 RYR2TZ NRN → BRI May 24, 12:10 UTCMay 24, 15:20 UTC3h 10m
2026-05-24 RYR6BZ LTN → BOJ May 24, 08:15 UTCMay 24, 11:20 UTC3h 5m
2026-05-23 RYR3KV CRL → ZAZ May 23, 17:20 UTCMay 23, 20:35 UTC3h 15m
2026-05-23 RYR61KY LTN → ATH May 23, 13:15 UTCMay 23, 16:25 UTC3h 10m
2026-05-23 RYR6KT MAN → BCN May 23, 09:45 UTCMay 23, 11:55 UTC2h 10m
2026-05-23 RYR84KM LTN → RMU May 23, 06:10 UTCMay 23, 08:20 UTC2h 10m
2026-05-21 RYR75VP VNO → LTN May 21, 17:55 UTCMay 21, 20:30 UTC2h 35m
2026-05-21 RYR8AL LTN → RZE May 21, 14:55 UTCMay 21, 17:10 UTC2h 15m
2026-05-21 RYR74XH LUZ → LTN May 21, 11:10 UTCMay 21, 13:30 UTC2h 20m
2026-05-21 RYR41NU LTN → LUZ May 21, 08:20 UTCMay 21, 10:25 UTC2h 5m
2026-05-20 RYR33RW RZE → LTN May 20, 18:20 UTCMay 20, 20:35 UTC2h 15m
2026-05-20 RYR92PF SDR → BLQ May 20, 15:25 UTCMay 20, 17:30 UTC2h 5m
2026-05-20 RYR95ND BCN → LTN May 20, 11:55 UTCMay 20, 13:50 UTC1h 55m
2026-05-20 RYR67AJ LTN → BCN May 20, 09:10 UTCMay 20, 10:45 UTC1h 35m
2026-05-20 RYR86DX NRN → NDR May 20, 07:20 UTCMay 20, 08:10 UTC50m
2026-05-20 RYR51YC LTN → DUB May 20, 05:30 UTCMay 20, 06:30 UTC1h 0m
2026-05-19 RYR88DV - May 19, 20:05 UTCMay 19, 22:15 UTC2h 10m
2026-05-19 RYR8429 LTN → ALC May 19, 16:50 UTCMay 19, 18:45 UTC1h 55m
2026-05-19 RYR75VP VNO → LTN May 19, 13:15 UTCMay 19, 15:40 UTC2h 25m
2026-05-19 RYR8AL LTN → RZE May 19, 10:15 UTCMay 19, 12:30 UTC2h 15m
2026-05-19 RYR81EN NOC → LTN May 19, 08:20 UTCMay 19, 09:25 UTC1h 5m
2026-05-19 RYR5ZV STN → GOT May 19, 06:45 UTCMay 19, 07:45 UTC1h 0m
2026-05-18 RYR6KT MAN → BCN May 18, 19:15 UTCMay 18, 21:35 UTC2h 20m

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

Mode-S 4CAD54 frequently asked

What is Mode-S code 4CAD54?
4CAD54 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HGV.
Where is Mode-S 4CAD54 registered?
Mode-S code 4CAD54 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAD54 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAD54, octal 23126524, decimal 5,025,108.
What flights does 4CAD54 operate?
Mode-S 4CAD54 has broadcast 20 distinct callsigns, including RYR6UR, RYR34LM, RYR98SG, RYR8AL, RYR7SW.