Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
523
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 23 2026-06-13
ITY226 ITA Airways 23 2026-06-13
ITY247 ITA Airways 19 2026-06-14
ITY224 ITA Airways 19 2026-06-14
ITY217 - 19 2026-06-15
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
ITY453 ITA Airways 8 2026-05-28
ITY452 ITA Airways 8 2026-05-28
ITY305 - 8 2026-07-08
ITY1285 - 8 2026-07-03
ITY300 - 7 2026-07-08
ITY2045 - 7 2026-07-09
ITY1298 - 7 2026-07-02
ITY1291 - 7 2026-07-02
ITY1286 - 7 2026-07-03
ITY2080 - 6 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ITY311 - Jul 13, 19:40 UTCJul 13, 20:40 UTC1h 0m
2026-07-13 ITY358 LIN → CDG Jul 13, 17:20 UTCJul 13, 18:35 UTC1h 15m
2026-07-13 ITY313 - Jul 13, 15:20 UTCJul 13, 16:20 UTC1h 0m
2026-07-13 ITY312 LIN → CDG Jul 13, 12:55 UTCJul 13, 14:05 UTC1h 10m
2026-07-13 ITY121 - Jul 13, 10:05 UTCJul 13, 11:20 UTC1h 15m
2026-07-13 ITY120 LIN → AMS Jul 13, 07:25 UTCJul 13, 08:50 UTC1h 25m
2026-07-13 ITY1176 - Jul 13, 04:40 UTCJul 13, 06:05 UTC1h 25m
2026-07-12 ITY1177 - Jul 12, 20:55 UTCJul 12, 22:05 UTC1h 10m
2026-07-12 ITY051 - Jul 12, 18:30 UTCJul 12, 19:55 UTC1h 25m
2026-07-12 ITY050 - Jul 12, 15:35 UTCJul 12, 16:55 UTC1h 20m
2026-07-12 ITY1764 - Jul 12, 12:15 UTCJul 12, 13:30 UTC1h 15m
2026-07-12 ITY1765 - Jul 12, 09:50 UTCJul 12, 10:55 UTC1h 5m
2026-07-12 ITY1642 - Jul 12, 07:05 UTCJul 12, 08:30 UTC1h 25m
2026-07-12 ITY1629 LIN → BDS Jul 12, 04:45 UTCJul 12, 06:05 UTC1h 20m
2026-07-11 ITY1632 BRI → LIN Jul 11, 17:20 UTCJul 11, 18:30 UTC1h 10m
2026-07-11 ITY1647 LIN → BRI Jul 11, 15:25 UTCJul 11, 16:30 UTC1h 5m
2026-07-11 ITY2044 - Jul 11, 13:25 UTCJul 11, 14:15 UTC50m
2026-07-11 ITY437 - Jul 11, 09:30 UTCJul 11, 10:35 UTC1h 5m
2026-07-11 ITY432 - Jul 11, 07:00 UTCJul 11, 08:10 UTC1h 10m
2026-07-11 ITY1356 - Jul 11, 04:40 UTCJul 11, 05:25 UTC45m
2026-07-10 ITY1363 - Jul 10, 20:20 UTCJul 10, 21:05 UTC46m
2026-07-10 ITY1312 - Jul 10, 04:40 UTCJul 10, 05:15 UTC35m
2026-07-09 ITY1321 FCO → BLQ Jul 9, 20:30 UTCJul 9, 21:05 UTC35m
2026-07-09 ITY355 - Jul 9, 17:35 UTCJul 9, 18:20 UTC45m
2026-07-09 ITY354 - Jul 9, 15:45 UTCJul 9, 16:35 UTC50m
2026-07-09 ITY1616 - Jul 9, 13:45 UTCJul 9, 14:30 UTC45m
2026-07-09 ITY1613 - Jul 9, 12:10 UTCJul 9, 12:55 UTC45m
2026-07-09 ITY2045 - Jul 9, 09:40 UTCJul 9, 10:25 UTC45m
2026-07-09 ITY451 MUC → LIN Jul 9, 08:00 UTCJul 9, 08:40 UTC40m
2026-07-09 ITY450 LIN → MUC Jul 9, 06:10 UTCJul 9, 06:55 UTC45m
2026-07-08 ITY113 - Jul 8, 18:30 UTCJul 8, 19:45 UTC1h 15m
2026-07-08 ITY112 LIN → AMS Jul 8, 15:30 UTCJul 8, 16:55 UTC1h 25m
2026-07-08 ITY305 - Jul 8, 08:20 UTCJul 8, 09:25 UTC1h 5m
2026-07-08 ITY300 - Jul 8, 05:10 UTCJul 8, 06:15 UTC1h 5m
2026-07-07 ITY219 LCY → LIN Jul 7, 19:30 UTCJul 7, 20:55 UTC1h 25m
2026-07-07 ITY220 LIN → LCY Jul 7, 17:00 UTCJul 7, 18:30 UTC1h 30m
2026-07-07 ITY2080 - Jul 7, 14:15 UTCJul 7, 15:05 UTC50m
2026-07-07 ITY1314 - Jul 7, 09:45 UTCJul 7, 10:25 UTC40m
2026-07-07 ITY1311 - Jul 7, 07:40 UTCJul 7, 08:20 UTC40m
2026-07-07 ITY1356 - Jul 7, 04:45 UTCJul 7, 05:30 UTC45m
2026-07-06 ITY1363 - Jul 6, 20:35 UTCJul 6, 21:25 UTC50m
2026-07-06 ITY355 NCE → FCO Jul 6, 18:20 UTCJul 6, 19:10 UTC50m
2026-07-06 ITY354 FCO → NCE Jul 6, 16:25 UTCJul 6, 17:15 UTC50m
2026-07-06 ITY1360 - Jul 6, 14:20 UTCJul 6, 15:05 UTC45m
2026-07-06 ITY1365 - Jul 6, 12:25 UTCJul 6, 13:15 UTC50m
2026-07-06 ITY1412 - Jul 6, 09:45 UTCJul 6, 10:40 UTC55m
2026-07-06 ITY1421 FCO → TRN Jul 6, 08:00 UTCJul 6, 08:55 UTC55m
2026-07-05 ITY407 FRA → FCO Jul 5, 17:05 UTCJul 5, 18:20 UTC1h 15m
2026-07-05 ITY404 - Jul 5, 14:00 UTCJul 5, 15:30 UTC1h 30m
2026-07-05 ITY1624 - Jul 5, 10:05 UTCJul 5, 10:50 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, ITY247, ITY224, ITY217.