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
No current signal · last broadcast 4h ago
Flights observed
638
Distinct callsigns
20
Country
IE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4CADB7.

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
RYR99CN - 7 2026-07-14
RYR94JD Ryanair 7 2026-04-25
RYR88ZF Ryanair 7 2026-06-14
RYR81WZ Ryanair 7 2026-06-14
RYR399Y - 7 2026-07-14
RYR1FD Ryanair 7 2026-04-22
RYR6UF Ryanair 6 2026-04-22
RYR6H Ryanair 6 2026-06-17
RYR1KH - 6 2026-07-14
RYR1278 Ryanair 6 2026-06-05
RYR1277 Ryanair 6 2026-06-05
RYR9VB - 5 2026-07-14
RYR9267 Ryanair 5 2026-05-26
RYR6UR - 5 2026-07-14
RYR4TC - 5 2026-07-14
RYR42SX Ryanair 5 2026-04-22
RYR30MV - 5 2026-06-17
RYR27QJ Ryanair 5 2026-04-23
RYR1SK - 5 2026-06-28
RYR97XF Ryanair 4 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 RYR4BN - Jul 14, 21:00 UTCJul 14, 22:40 UTC1h 40m
2026-07-14 RYR23VX CPH → BGY Jul 14, 18:00 UTCJul 14, 19:45 UTC1h 45m
2026-07-14 RYR9VB BUD → CPH Jul 14, 15:30 UTCJul 14, 17:00 UTC1h 30m
2026-07-14 RYR1KH CPH → BUD Jul 14, 13:10 UTCJul 14, 14:35 UTC1h 25m
2026-07-14 RYR6UR PRG → CPH Jul 14, 10:50 UTCJul 14, 11:55 UTC1h 5m
2026-07-14 RYR4TC CPH → PRG Jul 14, 08:50 UTCJul 14, 09:55 UTC1h 5m
2026-07-14 RYR99CN - Jul 14, 06:15 UTCJul 14, 07:25 UTC1h 10m
2026-07-14 RYR399Y - Jul 14, 04:20 UTCJul 14, 05:25 UTC1h 5m
2026-07-13 RYR68NX - Jul 13, 20:20 UTCJul 13, 22:25 UTC2h 5m
2026-07-13 RYR98RQ - Jul 13, 17:00 UTCJul 13, 19:00 UTC2h 0m
2026-07-13 RYR2SW - Jul 13, 14:55 UTCJul 13, 16:10 UTC1h 15m
2026-07-13 RYR2SW - Jul 13, 14:40 UTCJul 13, 14:50 UTC10m
2026-07-13 RYR8TQ CPH → VIE Jul 13, 12:40 UTCJul 13, 14:00 UTC1h 20m
2026-07-13 RYR94VF - Jul 13, 08:50 UTCJul 13, 11:45 UTC2h 55m
2026-07-13 RYR13QY CPH → ALC Jul 13, 04:10 UTCJul 13, 07:10 UTC3h 0m
2026-07-12 RYR100P FAO → CPH Jul 12, 18:40 UTCJul 12, 21:45 UTC3h 5m
2026-07-12 RYR76RQ CPH → FAO Jul 12, 14:05 UTCJul 12, 17:50 UTC3h 45m
2026-07-12 RYR6UR - Jul 12, 11:50 UTCJul 12, 12:45 UTC55m
2026-07-12 RYR4TC CPH → PRG Jul 12, 10:01 UTCJul 12, 11:05 UTC1h 5m
2026-07-12 RYR34PP DUB → CPH Jul 12, 07:31 UTCJul 12, 09:15 UTC1h 45m
2026-07-12 RYR6NR - Jul 12, 04:35 UTCJul 12, 06:25 UTC1h 50m
2026-07-11 RYR6PN - Jul 11, 20:10 UTCJul 11, 22:25 UTC2h 15m
2026-07-11 RYR9620 - Jul 11, 18:10 UTCJul 11, 18:50 UTC40m
2026-07-11 RYR6517 - Jul 11, 14:00 UTCJul 11, 16:35 UTC2h 35m
2026-07-11 RYR9523 - Jul 11, 11:30 UTCJul 11, 12:55 UTC1h 25m
2026-07-11 RYR41ZL - Jul 11, 09:10 UTCJul 11, 10:25 UTC1h 15m
2026-07-11 RYR25DD - Jul 11, 06:50 UTCJul 11, 08:05 UTC1h 15m
2026-07-10 RYR5FG - Jul 10, 22:25 UTCJul 11, 01:05 UTC2h 40m
2026-07-10 RYR10LY - Jul 10, 18:20 UTCJul 10, 21:00 UTC2h 40m
2026-07-10 RYR9ET PEG → STN Jul 10, 14:55 UTCJul 10, 17:05 UTC2h 10m
2026-07-10 RYR55HB - Jul 10, 11:55 UTCJul 10, 13:55 UTC2h 0m
2026-07-10 RYR3GX - Jul 10, 09:20 UTCJul 10, 10:50 UTC1h 30m
2026-07-10 RYR59DR - Jul 10, 06:55 UTCJul 10, 08:20 UTC1h 25m
2026-07-09 RYR82SK VIE → BCN Jul 9, 20:20 UTCJul 9, 22:25 UTC2h 5m
2026-07-09 RYR3GM - Jul 9, 17:30 UTCJul 9, 19:25 UTC1h 55m
2026-07-09 RYR4CR - Jul 9, 14:40 UTCJul 9, 16:30 UTC1h 50m
2026-07-09 RYR34UG - Jul 9, 12:10 UTCJul 9, 13:50 UTC1h 40m
2026-07-09 RYR411H - Jul 9, 08:35 UTCJul 9, 10:25 UTC1h 50m
2026-07-09 RYR3ZZ - Jul 9, 06:15 UTCJul 9, 07:50 UTC1h 35m
2026-07-08 RYR64FN MLA → STN Jul 8, 10:30 UTCJul 8, 13:35 UTC3h 5m
2026-07-08 RYR29QQ PEG → MLA Jul 8, 07:55 UTCJul 8, 09:10 UTC1h 15m
2026-07-08 RYR38RJ MLA → PEG Jul 8, 05:50 UTCJul 8, 07:05 UTC1h 15m
2026-07-07 RYR7109 BTS → MLA Jul 7, 22:15 UTCJul 8, 00:05 UTC1h 50m
2026-07-07 RYR8BH FMM → TFS Jul 7, 17:40 UTCJul 7, 19:45 UTC2h 5m
2026-07-07 RYR6YN - Jul 7, 15:50 UTCJul 7, 16:55 UTC1h 5m
2026-07-07 RYR97YQ - Jul 7, 10:30 UTCJul 7, 11:40 UTC1h 10m
2026-07-07 RYR96ZJ - Jul 7, 08:45 UTCJul 7, 09:50 UTC1h 5m
2026-07-07 RYR40HE - Jul 7, 05:50 UTCJul 7, 06:40 UTC50m
2026-07-07 RYR11HX - Jul 7, 04:00 UTCJul 7, 05:00 UTC1h 0m
2026-07-06 RYR46MN - Jul 6, 20:10 UTCJul 6, 20:50 UTC40m

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?
No active broadcast right now. Last signal was 4h ago.
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 RYR99CN, RYR94JD, RYR88ZF, RYR81WZ, RYR399Y.