Apparatus

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sensors Mode-S transponder

4CADB7

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-IFW · BOEING 737 MAX 8

Hex
4CADB7
Octal
23126667
Decimal
5,025,207
Country
IE
Tail
EI-IFW
Type
B38M
Broadcasting now · callsign RYR5368 · 33,875 ft
Flights observed
727
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 20:50 UTC

Current position

4CADB7 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CADB7 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
RYR88ZF Ryanair 10 2026-07-26
RYR81WZ Ryanair 10 2026-07-26
RYR99CN Ryanair 8 2026-07-21
RYR6UR - 8 2026-07-21
RYR4TC Ryanair 8 2026-07-21
RYR399Y Ryanair 8 2026-07-21
RYR1KH Ryanair 8 2026-07-25
RYR9VB Ryanair 7 2026-07-25
RYR94JD Ryanair 7 2026-04-25
RYR9267 - 7 2026-07-17
RYR6H - 7 2026-07-15
RYR1FD Ryanair 7 2026-04-22
RYR9266 - 6 2026-07-17
RYR6UF Ryanair 6 2026-04-22
RYR58UE Ryanair 6 2026-07-23
RYR30MV - 6 2026-07-15
RYR23VX Ryanair 6 2026-07-26
RYR1278 Ryanair 6 2026-06-05
RYR1277 Ryanair 6 2026-06-05
RYR98RQ Ryanair 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RYR23VX CPH → BGY Jul 26, 19:00 UTCJul 26, 20:50 UTC1h 50m
2026-07-26 RYR81WZ PSA → CPH Jul 26, 16:05 UTCJul 26, 18:05 UTC2h 0m
2026-07-26 RYR88ZF CPH → PSA Jul 26, 13:00 UTCJul 26, 15:00 UTC2h 0m
2026-07-26 RYR68NX FCO → CPH Jul 26, 10:00 UTCJul 26, 12:05 UTC2h 5m
2026-07-26 RYR98RQ CPH → FCO Jul 26, 05:15 UTCJul 26, 07:35 UTC2h 21m
2026-07-25 RYR3DP EIN → RAK Jul 25, 20:45 UTCJul 25, 23:00 UTC2h 15m
2026-07-25 RYR53JH - Jul 25, 16:50 UTCJul 25, 19:20 UTC2h 30m
2026-07-25 RYR2SW IBZ → DUB Jul 25, 14:35 UTCJul 25, 15:55 UTC1h 20m
2026-07-25 RYR8TQ CPH → VIE Jul 25, 12:20 UTCJul 25, 13:35 UTC1h 15m
2026-07-25 RYR9VB AGP → TRF Jul 25, 09:35 UTCJul 25, 11:15 UTC1h 40m
2026-07-25 RYR1KH TFS → BHX Jul 25, 07:20 UTCJul 25, 08:45 UTC1h 25m
2026-07-25 RYR8522 POZ → CPH Jul 25, 05:40 UTCJul 25, 06:25 UTC45m
2026-07-25 RYR8523 CPH → POZ Jul 25, 03:55 UTCJul 25, 04:35 UTC40m
2026-07-24 RYR6ZW ZAD → CPH Jul 24, 21:05 UTCJul 24, 22:55 UTC1h 50m
2026-07-24 RYR3026 - Jul 24, 18:40 UTCJul 24, 20:10 UTC1h 30m
2026-07-24 RYR6RM ALC → EDI Jul 24, 16:15 UTCJul 24, 17:50 UTC1h 35m
2026-07-24 RYR445T CPH → BRS Jul 24, 13:30 UTCJul 24, 15:10 UTC1h 40m
2026-07-24 RYR2KZ AGP → BFS Jul 24, 11:05 UTCJul 24, 12:35 UTC1h 30m
2026-07-24 RYR55RY CPH → MAN Jul 24, 08:35 UTCJul 24, 10:10 UTC1h 35m
2026-07-24 RYR79RU GDN → CPH Jul 24, 06:55 UTCJul 24, 07:10 UTC15m
2026-07-24 RYR4D BVA → EDI Jul 24, 04:50 UTCJul 24, 05:35 UTC45m
2026-07-23 RYR3DP EIN → RAK Jul 23, 20:25 UTCJul 23, 22:55 UTC2h 30m
2026-07-23 RYR53JH - Jul 23, 17:10 UTCJul 23, 19:00 UTC1h 50m
2026-07-23 RYR8522 POZ → CPH Jul 23, 15:25 UTCJul 23, 16:15 UTC50m
2026-07-23 RYR8523 CPH → POZ Jul 23, 13:50 UTCJul 23, 14:40 UTC50m
2026-07-23 RYR7239 MAN → CPH Jul 23, 10:55 UTCJul 23, 12:25 UTC1h 30m
2026-07-23 RYR7238 CPH → MAN Jul 23, 08:40 UTCJul 23, 10:05 UTC1h 25m
2026-07-23 RYR58UE STN → CPH Jul 23, 06:25 UTCJul 23, 07:55 UTC1h 30m
2026-07-23 RYR7JU CPH → STN Jul 23, 03:55 UTCJul 23, 05:10 UTC1h 15m
2026-07-22 RYR81WZ PSA → CPH Jul 22, 20:00 UTCJul 22, 21:55 UTC1h 55m
2026-07-22 RYR88ZF CPH → PSA Jul 22, 16:45 UTCJul 22, 18:40 UTC1h 55m
2026-07-22 RYR58UE STN → CPH Jul 22, 14:20 UTCJul 22, 15:40 UTC1h 20m
2026-07-22 RYR7JU CPH → STN Jul 22, 11:50 UTCJul 22, 13:20 UTC1h 30m
2026-07-22 RYR68NX - Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-22 RYR98RQ CPH → FCO Jul 22, 05:05 UTCJul 22, 10:25 UTC5h 20m
2026-07-21 RYR4BN - Jul 21, 20:30 UTCJul 21, 22:15 UTC1h 45m
2026-07-21 RYR23VX - Jul 21, 17:55 UTCJul 21, 19:40 UTC1h 45m
2026-07-21 RYR9VB BUD → CPH Jul 21, 15:25 UTCJul 21, 17:00 UTC1h 35m
2026-07-21 RYR1KH TFS → BHX Jul 21, 13:10 UTCJul 21, 14:35 UTC1h 25m
2026-07-21 RYR6UR PRG → CPH Jul 21, 10:45 UTCJul 21, 11:45 UTC1h 0m
2026-07-21 RYR4TC CPH → PRG Jul 21, 08:40 UTCJul 21, 09:35 UTC55m
2026-07-21 RYR99CN KRK → CPH Jul 21, 06:20 UTCJul 21, 07:40 UTC1h 20m
2026-07-21 RYR399Y CPH → KRK Jul 21, 04:30 UTCJul 21, 05:35 UTC1h 5m
2026-07-20 RYR8WH FNC → LIS Jul 20, 20:10 UTCJul 20, 22:40 UTC2h 30m
2026-07-20 RYR9TF SOF → STN Jul 20, 16:40 UTCJul 20, 19:05 UTC2h 25m
2026-07-20 RYR79RU GDN → CPH Jul 20, 14:55 UTCJul 20, 15:40 UTC45m
2026-07-20 RYR4D BVA → EDI Jul 20, 13:25 UTCJul 20, 14:10 UTC45m
2026-07-20 RYR6UR PRG → CPH Jul 20, 11:15 UTCJul 20, 12:10 UTC55m
2026-07-20 RYR4TC CPH → PRG Jul 20, 09:25 UTCJul 20, 10:20 UTC55m
2026-07-20 RYR4UL NRN → AOI Jul 20, 06:55 UTCJul 20, 08:30 UTC1h 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-IFW page for operator, model, and routing details .

Mode-S 4CADB7 frequently asked

What is Mode-S code 4CADB7?
4CADB7 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-IFW.
Where is Mode-S 4CADB7 registered?
Mode-S code 4CADB7 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CADB7 broadcasting right now?
Yes. Mode-S 4CADB7 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CADB7, octal 23126667, decimal 5,025,207.
What flights does 4CADB7 operate?
Mode-S 4CADB7 has broadcast 20 distinct callsigns, including RYR88ZF, RYR81WZ, RYR99CN, RYR6UR, RYR4TC.