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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 Jul 26, 21:15 UTC
Flights observed
608
Distinct callsigns
20
Country
IE
Last broadcast
Jul 26, 21:15 UTC

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 24 2026-07-25
ITY226 ITA Airways 24 2026-07-25
ITY224 - 20 2026-07-24
ITY217 ITA Airways 20 2026-07-25
ITY247 ITA Airways 19 2026-06-14
ITY238 ITA Airways 18 2026-06-14
ITY219 - 13 2026-07-07
ITY220 - 12 2026-07-07
ITY221 - 11 2026-07-02
ITY218 - 11 2026-07-02
ITY1285 ITA Airways 9 2026-07-26
ITY453 ITA Airways 8 2026-05-28
ITY452 ITA Airways 8 2026-05-28
ITY305 - 8 2026-07-08
ITY2045 - 8 2026-07-14
ITY1286 ITA Airways 8 2026-07-26
ITY300 - 7 2026-07-08
ITY1298 - 7 2026-07-02
ITY1291 - 7 2026-07-02
ITY355 - 6 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ITY153 BRU → LIN Jul 26, 20:15 UTCJul 26, 21:15 UTC1h 0m
2026-07-26 ITY154 LIN → BRU Jul 26, 17:55 UTCJul 26, 19:10 UTC1h 15m
2026-07-26 ITY313 - Jul 26, 15:10 UTCJul 26, 16:15 UTC1h 5m
2026-07-26 ITY312 - Jul 26, 12:35 UTCJul 26, 13:40 UTC1h 5m
2026-07-26 ITY1286 NAP → LIN Jul 26, 10:05 UTCJul 26, 11:05 UTC1h 0m
2026-07-26 ITY1285 LIN → NAP Jul 26, 07:40 UTCJul 26, 08:55 UTC1h 15m
2026-07-26 ITY1176 SUF → LIN Jul 26, 04:35 UTCJul 26, 06:00 UTC1h 25m
2026-07-25 ITY1177 LIN → SUF Jul 25, 20:20 UTCJul 25, 21:35 UTC1h 15m
2026-07-25 ITY1720 - Jul 25, 17:40 UTCJul 25, 19:15 UTC1h 35m
2026-07-25 ITY1721 LIN → CTA Jul 25, 14:30 UTCJul 25, 15:50 UTC1h 20m
2026-07-25 ITY227 LCY → LIN Jul 25, 11:20 UTCJul 25, 12:45 UTC1h 25m
2026-07-25 ITY226 LIN → LCY Jul 25, 08:45 UTCJul 25, 10:10 UTC1h 25m
2026-07-25 ITY217 LCY → LIN Jul 25, 05:55 UTCJul 25, 07:20 UTC1h 25m
2026-07-24 ITY224 LIN → LCY Jul 24, 18:20 UTCJul 24, 19:45 UTC1h 25m
2026-07-24 ITY1184 SUF → LIN Jul 24, 15:20 UTCJul 24, 16:50 UTC1h 30m
2026-07-24 ITY1185 LIN → SUF Jul 24, 12:35 UTCJul 24, 13:50 UTC1h 15m
2026-07-24 ITY1718 CTA → LIN Jul 24, 09:45 UTCJul 24, 11:20 UTC1h 35m
2026-07-24 ITY1727 LIN → CTA Jul 24, 07:15 UTCJul 24, 08:25 UTC1h 10m
2026-07-24 ITY1176 SUF → LIN Jul 24, 04:35 UTCJul 24, 06:15 UTC1h 40m
2026-07-23 ITY1173 - Jul 23, 21:30 UTCJul 23, 22:15 UTC45m
2026-07-23 ITY1480 - Jul 23, 18:50 UTCJul 23, 19:30 UTC40m
2026-07-23 ITY1467 - Jul 23, 17:00 UTCJul 23, 17:45 UTC45m
2026-07-23 ITY345 NCE → FCO Jul 23, 14:50 UTCJul 23, 15:40 UTC50m
2026-07-23 ITY344 FCO → NCE Jul 23, 12:35 UTCJul 23, 13:30 UTC55m
2026-07-23 ITY1358 TRS → FCO Jul 23, 09:30 UTCJul 23, 10:15 UTC45m
2026-07-23 ITY1357 - Jul 23, 07:40 UTCJul 23, 08:30 UTC50m
2026-07-23 ITY1432 TRN → FCO Jul 23, 05:00 UTCJul 23, 05:45 UTC45m
2026-07-22 ITY1431 - Jul 22, 20:20 UTCJul 22, 21:15 UTC55m
2026-07-22 ITY1364 TRS → FCO Jul 22, 17:45 UTCJul 22, 18:30 UTC45m
2026-07-22 ITY1359 - Jul 22, 16:05 UTCJul 22, 16:50 UTC45m
2026-07-22 ITY1462 - Jul 22, 14:15 UTCJul 22, 14:55 UTC40m
2026-07-22 ITY1475 FCO → VCE Jul 22, 12:30 UTCJul 22, 13:10 UTC40m
2026-07-21 ITY113 AMS → LIN Jul 21, 19:05 UTCJul 21, 20:20 UTC1h 15m
2026-07-21 ITY112 LIN → AMS Jul 21, 16:30 UTCJul 21, 18:05 UTC1h 35m
2026-07-21 ITY1786 PMO → LIN Jul 21, 14:00 UTCJul 21, 15:25 UTC1h 25m
2026-07-21 ITY1787 - Jul 21, 11:30 UTCJul 21, 12:40 UTC1h 10m
2026-07-21 ITY351 ORY → LIN Jul 21, 09:10 UTCJul 21, 10:15 UTC1h 5m
2026-07-21 ITY350 LIN → ORY Jul 21, 06:55 UTCJul 21, 08:05 UTC1h 10m
2026-07-21 ITY1278 NAP → LIN Jul 21, 04:45 UTCJul 21, 05:45 UTC1h 0m
2026-07-20 ITY1297 - Jul 20, 19:35 UTCJul 20, 20:25 UTC50m
2026-07-20 ITY1632 - Jul 20, 17:00 UTCJul 20, 18:20 UTC1h 20m
2026-07-20 ITY1647 LIN → BRI Jul 20, 14:45 UTCJul 20, 15:50 UTC1h 5m
2026-07-20 ITY1764 PMO → LIN Jul 20, 12:15 UTCJul 20, 13:40 UTC1h 25m
2026-07-20 ITY1785 - Jul 20, 08:50 UTCJul 20, 09:30 UTC40m
2026-07-20 ITY2021 LIN → FCO Jul 20, 06:15 UTCJul 20, 07:00 UTC45m
2026-07-19 ITY311 CDG → LIN Jul 19, 20:10 UTCJul 19, 21:10 UTC1h 0m
2026-07-19 ITY358 - Jul 19, 17:50 UTCJul 19, 19:05 UTC1h 15m
2026-07-19 ITY313 - Jul 19, 15:40 UTCJul 19, 16:35 UTC55m
2026-07-19 ITY312 - Jul 19, 12:40 UTCJul 19, 13:55 UTC1h 15m
2026-07-19 ITY1174 - Jul 19, 09:45 UTCJul 19, 11:10 UTC1h 25m

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 Jul 26, 21:15 UTC.
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, ITY217, ITY247.