sensors Mode-S transponder

4CA7B6

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-EGA · BOEING 737-800

Hex
4CA7B6
Octal
23123666
Decimal
5,023,670
Country
IE
Tail
EI-EGA
Type
B738
Broadcasting now · callsign RYR681R · 22,950 ft
Flights observed
674
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CA7B6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA7B6 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
RYR3VU Ryanair 7 2026-04-27
RYR60PR Ryanair 6 2026-05-05
RYR4PH - 6 2026-07-15
RYR2P Ryanair 6 2026-04-26
RYR99JH Ryanair 5 2026-06-14
RYR769V Ryanair 5 2026-06-12
RYR681R - 5 2026-07-14
RYR15PW - 5 2026-06-12
RYR15FX Ryanair 5 2026-06-14
RYR15CF Ryanair 5 2026-04-17
RYR99ZG Ryanair 4 2026-05-07
RYR86CT - 4 2026-07-14
RYR73EJ - 4 2026-07-14
RYR6HL Ryanair 4 2026-05-03
RYR5TF - 4 2026-07-11
RYR54FN - 4 2026-07-15
RYR5448 Ryanair 4 2026-04-27
RYR48FZ - 4 2026-04-17
RYR484A - 4 2026-07-14
RYR41VQ - 4 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 RYR4PH - Jul 15, 08:40 UTCJul 15, 09:30 UTC50m
2026-07-15 RYR29BA - Jul 15, 06:25 UTCJul 15, 07:35 UTC1h 10m
2026-07-15 RYR54FN - Jul 15, 04:35 UTCJul 15, 05:35 UTC1h 0m
2026-07-14 RYR73EJ MAN → VCE Jul 14, 20:00 UTCJul 14, 21:50 UTC1h 50m
2026-07-14 RYR41VQ - Jul 14, 17:05 UTCJul 14, 19:15 UTC2h 10m
2026-07-14 RYR681R - Jul 14, 15:00 UTCJul 14, 16:00 UTC1h 0m
2026-07-14 RYR4PH - Jul 14, 13:10 UTCJul 14, 14:10 UTC1h 0m
2026-07-14 RYR86CT - Jul 14, 11:05 UTCJul 14, 12:00 UTC55m
2026-07-14 RYR484A - Jul 14, 09:15 UTCJul 14, 10:05 UTC50m
2026-07-14 RYR133M - Jul 14, 06:05 UTCJul 14, 07:30 UTC1h 25m
2026-07-14 RYR1855 - Jul 14, 04:05 UTCJul 14, 05:15 UTC1h 10m
2026-07-13 RYR86CT - Jul 13, 20:20 UTCJul 13, 21:15 UTC55m
2026-07-13 RYR484A - Jul 13, 18:35 UTCJul 13, 19:15 UTC40m
2026-07-13 RYR6WA - Jul 13, 16:00 UTCJul 13, 17:55 UTC1h 55m
2026-07-13 RYR6MZ - Jul 13, 13:35 UTCJul 13, 14:45 UTC1h 10m
2026-07-13 RYR6MZ - Jul 13, 12:30 UTCJul 13, 13:30 UTC1h 0m
2026-07-13 RYR17XU - Jul 13, 09:30 UTCJul 13, 10:25 UTC55m
2026-07-13 RYR29BC - Jul 13, 07:50 UTCJul 13, 08:35 UTC45m
2026-07-13 RYR33TQ - Jul 13, 05:50 UTCJul 13, 06:40 UTC50m
2026-07-13 RYR824 - Jul 13, 03:55 UTCJul 13, 04:45 UTC50m
2026-07-12 RYR2UQ - Jul 12, 22:15 UTCJul 12, 23:35 UTC1h 20m
2026-07-12 RYR4LD - Jul 12, 20:10 UTCJul 12, 21:20 UTC1h 10m
2026-07-12 RYR6DB - Jul 12, 17:40 UTCJul 12, 19:10 UTC1h 30m
2026-07-12 RYR8UF - Jul 12, 14:25 UTCJul 12, 16:25 UTC2h 0m
2026-07-12 RYR73EJ - Jul 12, 11:10 UTCJul 12, 13:05 UTC1h 55m
2026-07-12 RYR41VQ VCE → MAN Jul 12, 08:15 UTCJul 12, 10:15 UTC2h 0m
2026-07-12 RYR17XU - Jul 12, 06:01 UTCJul 12, 07:05 UTC1h 5m
2026-07-12 RYR29BC - Jul 12, 03:55 UTCJul 12, 04:55 UTC1h 0m
2026-07-11 RYR59ET - Jul 11, 21:50 UTCJul 11, 23:10 UTC1h 20m
2026-07-11 RYR1GV - Jul 11, 18:40 UTCJul 11, 19:50 UTC1h 10m
2026-07-11 RYR5TF - Jul 11, 16:35 UTCJul 11, 17:45 UTC1h 10m
2026-07-11 RYR9159 - Jul 11, 14:35 UTCJul 11, 15:45 UTC1h 10m
2026-07-11 RYR12SK LIS → VLC Jul 11, 12:20 UTCJul 11, 13:40 UTC1h 20m
2026-07-11 RYR200F VNO → BCN Jul 11, 08:05 UTCJul 11, 11:15 UTC3h 10m
2026-07-11 RYR478T BCN → VNO Jul 11, 04:01 UTCJul 11, 07:00 UTC3h 0m
2026-07-10 RYR1CK VCE → BCN Jul 10, 22:25 UTCJul 10, 23:55 UTC1h 30m
2026-07-10 RYR33TQ - Jul 10, 20:50 UTCJul 10, 21:35 UTC45m
2026-07-10 RYR824 - Jul 10, 18:55 UTCJul 10, 19:35 UTC40m
2026-07-10 RYR6LU - Jul 10, 15:45 UTCJul 10, 18:05 UTC2h 20m
2026-07-10 RYR7DL - Jul 10, 12:25 UTCJul 10, 14:40 UTC2h 15m
2026-07-10 RYR7LQ - Jul 10, 07:45 UTCJul 10, 09:40 UTC1h 55m
2026-07-10 RYR466M VCE → ATH Jul 10, 04:00 UTCJul 10, 05:45 UTC1h 45m
2026-07-09 RYR5TF - Jul 9, 21:55 UTCJul 9, 23:05 UTC1h 10m
2026-07-09 RYR9159 - Jul 9, 19:40 UTCJul 9, 21:10 UTC1h 30m
2026-07-09 RYR6LU - Jul 9, 16:15 UTCJul 9, 18:20 UTC2h 5m
2026-07-09 RYR7DL - Jul 9, 12:15 UTCJul 9, 14:35 UTC2h 20m
2026-07-09 RYR85FH CAG → VCE Jul 9, 09:40 UTCJul 9, 10:45 UTC1h 5m
2026-07-09 RYR6SW - Jul 9, 07:40 UTCJul 9, 08:50 UTC1h 10m
2026-07-09 RYR29BA - Jul 9, 05:40 UTCJul 9, 06:45 UTC1h 5m
2026-07-09 RYR54FN - Jul 9, 03:55 UTCJul 9, 04:50 UTC55m

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

Mode-S 4CA7B6 frequently asked

What is Mode-S code 4CA7B6?
4CA7B6 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-EGA.
Where is Mode-S 4CA7B6 registered?
Mode-S code 4CA7B6 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA7B6 broadcasting right now?
Yes. Mode-S 4CA7B6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA7B6, octal 23123666, decimal 5,023,670.
What flights does 4CA7B6 operate?
Mode-S 4CA7B6 has broadcast 20 distinct callsigns, including RYR3VU, RYR60PR, RYR4PH, RYR2P, RYR99JH.