Apparatus

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sensors Mode-S transponder

4CAE15

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HLE · AIRBUS A220-100

Hex
4CAE15
Octal
23127025
Decimal
5,025,301
Country
IE
Tail
EI-HLE
Type
BCS1
No current signal · last broadcast 5h ago
Flights observed
270
Distinct callsigns
20
Country
IE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4CAE15.

Country allocation

The ICAO 24-bit address 4CAE15 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
ITY227 ITA Airways 17 2026-05-28
ITY226 ITA Airways 17 2026-05-28
ITY224 ITA Airways 14 2026-05-29
ITY247 ITA Airways 13 2026-05-29
ITY217 ITA Airways 13 2026-05-28
ITY238 ITA Airways 12 2026-05-29
ITY219 ITA Airways 9 2026-05-25
ITY453 ITA Airways 8 2026-05-28
ITY452 ITA Airways 8 2026-05-28
ITY221 ITA Airways 8 2026-05-19
ITY220 ITA Airways 8 2026-05-25
ITY218 ITA Airways 8 2026-05-19
ITY305 ITA Airways 6 2026-05-25
ITY300 ITA Airways 5 2026-05-25
ITY1298 ITA Airways 5 2026-05-24
ITY1291 ITA Airways 5 2026-05-24
ITY1642 ITA Airways 4 2026-05-18
ITY1629 ITA Airways 4 2026-05-18
ITY1297 ITA Airways 4 2026-05-28
ITY1285 ITA Airways 4 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ITY224 LIN → LCY May 29, 18:45 UTCMay 29, 20:10 UTC1h 25m
2026-05-29 ITY247 LHR → LIN May 29, 16:05 UTCMay 29, 17:35 UTC1h 30m
2026-05-29 ITY238 LIN → LHR May 29, 13:40 UTCMay 29, 15:05 UTC1h 25m
2026-05-29 ITY1288 NAP → LIN May 29, 11:35 UTCMay 29, 12:35 UTC1h 0m
2026-05-29 ITY1299 LIN → NAP May 29, 09:00 UTCMay 29, 09:55 UTC55m
2026-05-29 ITY1278 NAP → LIN May 29, 05:00 UTCMay 29, 06:00 UTC1h 0m
2026-05-29 ITY8000 - May 29, 03:15 UTCMay 29, 03:35 UTC20m
2026-05-28 ITY1297 LIN → NAP May 28, 22:20 UTCMay 28, 23:05 UTC45m
2026-05-28 ITY453 MUC → LIN May 28, 18:10 UTCMay 28, 19:15 UTC1h 5m
2026-05-28 ITY452 LIN → MUC May 28, 15:50 UTCMay 28, 16:35 UTC45m
2026-05-28 ITY227 LCY → LIN May 28, 13:00 UTCMay 28, 14:25 UTC1h 25m
2026-05-28 ITY226 LIN → LCY May 28, 10:30 UTCMay 28, 12:00 UTC1h 30m
2026-05-28 ITY217 LCY → LIN May 28, 06:00 UTCMay 28, 07:30 UTC1h 30m
2026-05-27 ITY224 LIN → LCY May 27, 18:30 UTCMay 27, 20:00 UTC1h 30m
2026-05-27 ITY247 LHR → LIN May 27, 16:10 UTCMay 27, 17:40 UTC1h 30m
2026-05-27 ITY238 LIN → LHR May 27, 13:35 UTCMay 27, 15:05 UTC1h 30m
2026-05-27 ITY217 LCY → LIN May 27, 06:20 UTCMay 27, 07:45 UTC1h 25m
2026-05-26 ITY224 LIN → LCY May 26, 18:30 UTCMay 26, 19:55 UTC1h 25m
2026-05-26 ITY247 LHR → LIN May 26, 15:35 UTCMay 26, 17:04 UTC1h 30m
2026-05-26 ITY238 LIN → LHR May 26, 13:19 UTCMay 26, 14:50 UTC1h 30m
2026-05-26 ITY451 MUC → LIN May 26, 07:49 UTCMay 26, 08:39 UTC50m
2026-05-26 ITY450 LIN → MUC May 26, 05:30 UTCMay 26, 06:14 UTC45m
2026-05-25 ITY219 LCY → LIN May 25, 18:20 UTCMay 25, 19:50 UTC1h 30m
2026-05-25 ITY220 LIN → LCY May 25, 16:05 UTCMay 25, 17:30 UTC1h 25m
2026-05-25 ITY227 LCY → LIN May 25, 12:50 UTCMay 25, 14:20 UTC1h 30m
2026-05-25 ITY226 LIN → LCY May 25, 10:30 UTCMay 25, 12:00 UTC1h 30m
2026-05-25 ITY305 CDG → LIN May 25, 08:25 UTCMay 25, 09:40 UTC1h 15m
2026-05-25 ITY300 LIN → CDG May 25, 05:35 UTCMay 25, 06:45 UTC1h 10m
2026-05-24 ITY1298 NAP → LIN May 24, 19:30 UTCMay 24, 20:25 UTC55m
2026-05-24 ITY1291 LIN → NAP May 24, 17:05 UTCMay 24, 17:55 UTC50m
2026-05-24 ITY2080 FCO → LIN May 24, 15:10 UTCMay 24, 15:55 UTC45m
2026-05-24 ITY1270 NAP → FCO May 24, 13:15 UTCMay 24, 13:40 UTC25m
2026-05-24 ITY1269 FCO → NAP May 24, 11:55 UTCMay 24, 12:25 UTC30m
2026-05-24 ITY1384 GOA → FCO May 24, 09:45 UTCMay 24, 10:25 UTC40m
2026-05-24 ITY1383 FCO → GOA May 24, 08:05 UTCMay 24, 08:50 UTC45m
2026-05-24 ITY1312 BLQ → FCO May 24, 04:45 UTCMay 24, 05:20 UTC35m
2026-05-23 ITY1321 FCO → BLQ May 23, 20:00 UTCMay 23, 20:45 UTC45m
2026-05-23 ITY1BC BDS → FCO May 23, 17:30 UTCMay 23, 18:25 UTC55m
2026-05-23 ITY1623 FCO → BDS May 23, 15:35 UTCMay 23, 16:30 UTC55m
2026-05-23 ITY2049 LIN → FCO May 23, 13:20 UTCMay 23, 14:05 UTC45m
2026-05-23 ITY1286 NAP → LIN May 23, 06:50 UTCMay 23, 07:45 UTC55m
2026-05-23 ITY1285 LIN → NAP May 23, 04:25 UTCMay 23, 05:25 UTC1h 0m
2026-05-22 ITY219 LCY → LIN May 22, 18:45 UTCMay 22, 20:10 UTC1h 25m
2026-05-22 ITY220 LIN → LCY May 22, 16:05 UTCMay 22, 17:40 UTC1h 35m
2026-05-22 ITY2080 FCO → LIN May 22, 14:20 UTCMay 22, 15:05 UTC45m
2026-05-22 ITY1358 TRS → FCO May 22, 09:40 UTCMay 22, 10:25 UTC45m
2026-05-22 ITY1357 FCO → TRS May 22, 07:55 UTCMay 22, 08:50 UTC55m
2026-05-21 ITY1386 GOA → FCO May 21, 13:40 UTCMay 21, 14:20 UTC40m
2026-05-21 ITY1395 FCO → GOA May 21, 11:55 UTCMay 21, 12:40 UTC45m
2026-05-21 ITY2045 LIN → FCO May 21, 09:45 UTCMay 21, 10:30 UTC45m

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

Mode-S 4CAE15 frequently asked

What is Mode-S code 4CAE15?
4CAE15 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HLE.
Where is Mode-S 4CAE15 registered?
Mode-S code 4CAE15 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE15 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE15, octal 23127025, decimal 5,025,301.
What flights does 4CAE15 operate?
Mode-S 4CAE15 has broadcast 20 distinct callsigns, including ITY227, ITY226, ITY224, ITY247, ITY217.