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sensors Mode-S transponder

4CA4EC

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-DPH · BOEING 737-800

Hex
4CA4EC
Octal
23122354
Decimal
5,022,956
Country
IE
Tail
EI-DPH
Type
B738
Broadcasting now · callsign RYR4U · 9,300 ft
Flights observed
625
Distinct callsigns
20
Country
IE
Last broadcast
1h ago

Current position

4CA4EC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4CA4EC 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
RYR3GY Ryanair 11 2026-05-27
RYR16UD Ryanair 11 2026-05-27
RYR13CC Ryanair 7 2026-05-29
RYR8GU - 6 2026-06-18
RYR8621 Ryanair 6 2026-05-27
RYR84FW - 6 2026-06-18
RYR33LB Ryanair 6 2026-05-27
RYR30SV Ryanair 6 2026-05-29
RYR7Z Ryanair 5 2026-05-25
RYR6041 Ryanair 5 2026-05-25
RYR86FZ Ryanair 4 2026-04-17
RYR8618 - 4 2026-05-26
RYR7VB Ryanair 4 2026-04-17
RYR6743 Ryanair 4 2026-05-28
RYR65MU Ryanair 4 2026-05-26
RYR56 Ryanair 4 2026-05-28
RYR45HE Ryanair 4 2026-05-21
RYR276D Ryanair 4 2026-05-21
RYR9G - 3 2026-06-19
RYR99FP - 3 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 RYR84LH - Jul 15, 05:50 UTCJul 15, 08:00 UTC2h 10m
2026-07-14 RYR73PQ - Jul 14, 19:45 UTCJul 14, 21:35 UTC1h 50m
2026-07-14 RYR11QJ - Jul 14, 17:05 UTCJul 14, 18:35 UTC1h 30m
2026-07-14 RYR3UU - Jul 14, 14:00 UTCJul 14, 15:50 UTC1h 50m
2026-07-14 RYR3DM - Jul 14, 11:35 UTCJul 14, 13:10 UTC1h 35m
2026-07-14 RYR6MZ VCE → MAD Jul 14, 07:40 UTCJul 14, 09:55 UTC2h 15m
2026-07-14 RYR17XU - Jul 14, 05:40 UTCJul 14, 06:40 UTC1h 0m
2026-07-14 RYR29BC - Jul 14, 04:05 UTCJul 14, 05:00 UTC55m
2026-07-13 RYR3W - Jul 13, 21:55 UTCJul 13, 22:50 UTC55m
2026-07-13 RYR4744 - Jul 13, 20:20 UTCJul 13, 21:10 UTC50m
2026-07-13 RYR97BT PMO → VCE Jul 13, 18:25 UTCJul 13, 19:40 UTC1h 15m
2026-07-13 RYR163M - Jul 13, 16:30 UTCJul 13, 17:40 UTC1h 10m
2026-07-13 RYR3WM - Jul 13, 13:55 UTCJul 13, 15:20 UTC1h 25m
2026-07-13 RYR82QT - Jul 13, 11:30 UTCJul 13, 12:45 UTC1h 15m
2026-07-13 RYR6DB - Jul 13, 08:40 UTCJul 13, 10:10 UTC1h 30m
2026-07-13 RYR8UF - Jul 13, 05:45 UTCJul 13, 07:45 UTC2h 0m
2026-07-12 RYR80JR - Jul 12, 19:30 UTCJul 12, 21:40 UTC2h 10m
2026-07-12 RYR16FR - Jul 12, 16:15 UTCJul 12, 18:35 UTC2h 20m
2026-07-12 RYR85FH - Jul 12, 14:05 UTCJul 12, 15:10 UTC1h 5m
2026-07-12 RYR6SW - Jul 12, 12:15 UTCJul 12, 13:15 UTC1h 0m
2026-07-12 RYR29BA - Jul 12, 09:55 UTCJul 12, 11:05 UTC1h 10m
2026-07-12 RYR54FN - Jul 12, 08:15 UTCJul 12, 09:15 UTC1h 0m
2026-07-12 RYR33TQ - Jul 12, 06:20 UTCJul 12, 07:15 UTC55m
2026-07-12 RYR824 - Jul 12, 04:30 UTCJul 12, 05:10 UTC40m
2026-07-11 RYR86CT - Jul 11, 13:50 UTCJul 11, 14:35 UTC45m
2026-07-11 RYR484A - Jul 11, 11:30 UTCJul 11, 12:15 UTC45m
2026-07-11 RYR6DB - Jul 11, 08:25 UTCJul 11, 10:05 UTC1h 40m
2026-07-11 RYR8UF - Jul 11, 05:31 UTCJul 11, 07:20 UTC1h 50m
2026-07-10 RYR5ZL - Jul 10, 22:55 UTCJul 10, 23:50 UTC55m
2026-07-10 RYR95AT - Jul 10, 14:25 UTCJul 10, 15:20 UTC55m
2026-07-10 RYR681R AHO → VCE Jul 10, 12:30 UTCJul 10, 13:30 UTC1h 0m
2026-07-10 RYR4PH - Jul 10, 10:25 UTCJul 10, 11:30 UTC1h 5m
2026-07-10 RYR29BA - Jul 10, 08:25 UTCJul 10, 09:35 UTC1h 10m
2026-07-10 RYR54FN - Jul 10, 06:35 UTCJul 10, 07:30 UTC55m
2026-07-09 RYR6WA MAD → VCE Jul 9, 22:50 UTCJul 10, 00:45 UTC1h 55m
2026-07-09 RYR5BM - Jul 9, 19:50 UTCJul 9, 21:15 UTC1h 25m
2026-07-09 RYR1BZ - Jul 9, 17:30 UTCJul 9, 19:05 UTC1h 35m
2026-07-09 RYR26DT MXP → MAD Jul 9, 14:05 UTCJul 9, 16:00 UTC1h 55m
2026-07-09 RYR40VK MAD → MXP Jul 9, 10:50 UTCJul 9, 12:55 UTC2h 5m
2026-07-09 RYR90SF - Jul 9, 07:20 UTCJul 9, 09:30 UTC2h 10m
2026-07-09 RYR165E - Jul 9, 04:10 UTCJul 9, 06:10 UTC2h 0m
2026-07-08 RYR6TB - Jul 8, 23:25 UTCJul 9, 00:15 UTC50m
2026-07-08 RYR7VH - Jul 8, 21:15 UTCJul 8, 22:30 UTC1h 15m
2026-07-08 RYR227G - Jul 8, 18:05 UTCJul 8, 19:40 UTC1h 35m
2026-07-08 RYR158V - Jul 8, 15:35 UTCJul 8, 17:10 UTC1h 35m
2026-07-08 RYR374M - Jul 8, 12:55 UTCJul 8, 13:55 UTC1h 0m
2026-07-08 RYR9595 - Jul 8, 09:00 UTCJul 8, 11:25 UTC2h 25m
2026-07-08 RYR2DF - Jul 8, 05:35 UTCJul 8, 08:00 UTC2h 25m
2026-07-07 RYR687J - Jul 7, 19:10 UTCJul 7, 20:55 UTC1h 45m
2026-07-07 RYR755H - Jul 7, 16:20 UTCJul 7, 18:30 UTC2h 10m

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

Mode-S 4CA4EC frequently asked

What is Mode-S code 4CA4EC?
4CA4EC is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-DPH.
Where is Mode-S 4CA4EC registered?
Mode-S code 4CA4EC is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CA4EC broadcasting right now?
Yes. Mode-S 4CA4EC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CA4EC, octal 23122354, decimal 5,022,956.
What flights does 4CA4EC operate?
Mode-S 4CA4EC has broadcast 20 distinct callsigns, including RYR3GY, RYR16UD, RYR13CC, RYR8GU, RYR8621.