sensors Mode-S transponder

4CAE12

ICAO 24-bit transponder address · allocated to Ireland

Currently assigned to EI-HLB · AIRBUS A220-100

Hex
4CAE12
Octal
23127022
Decimal
5,025,298
Country
IE
Tail
EI-HLB
Type
BCS1
No current signal · last broadcast 13h ago
Flights observed
12
Distinct callsigns
8
Country
IE
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 4CAE12.

Country allocation

The ICAO 24-bit address 4CAE12 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 8 distinct

Callsign Airline Flights Last seen
ITY1286 ITA Airways 3 2026-04-14
ITY1655 - 2 2026-04-14
ITY1285 - 2 2026-04-14
ITY453 - 1 2026-04-13
ITY452 - 1 2026-04-13
ITY1654 - 1 2026-04-13
ITY1298 - 1 2026-04-12
ITY1291 - 1 2026-04-12

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 ITY1655 - Apr 14, 09:10 UTCApr 14, 10:10 UTC1h 0m
2026-04-14 ITY1286 NAP → LIN Apr 14, 07:10 UTCApr 14, 07:40 UTC30m
2026-04-14 ITY1286 NAP → LIN Apr 14, 06:45 UTCApr 14, 07:10 UTC25m
2026-04-14 ITY1285 - Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 ITY453 - Apr 13, 18:10 UTCApr 13, 18:55 UTC45m
2026-04-13 ITY452 LIN → MUC Apr 13, 16:20 UTCApr 13, 17:00 UTC40m
2026-04-13 ITY1654 - Apr 13, 13:50 UTCApr 13, 15:05 UTC1h 15m
2026-04-13 ITY1655 - Apr 13, 09:05 UTCApr 13, 10:20 UTC1h 15m
2026-04-13 ITY1286 NAP → LIN Apr 13, 06:50 UTCApr 13, 07:40 UTC50m
2026-04-13 ITY1285 - Apr 13, 04:30 UTCApr 13, 05:25 UTC55m
2026-04-12 ITY1298 - Apr 12, 19:40 UTCApr 12, 20:15 UTC35m
2026-04-12 ITY1291 - Apr 12, 17:30 UTCApr 12, 18:25 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-HLB page for operator, model, and routing details .

Mode-S 4CAE12 frequently asked

What is Mode-S code 4CAE12?
4CAE12 is an ICAO 24-bit transponder address. Allocated to Ireland. Assigned to EI-HLB.
Where is Mode-S 4CAE12 registered?
Mode-S code 4CAE12 is allocated to Ireland (IE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4CAE12 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4CAE12, octal 23127022, decimal 5,025,298.
What flights does 4CAE12 operate?
Mode-S 4CAE12 has broadcast 8 distinct callsigns, including ITY1286, ITY1655, ITY1285, ITY453, ITY452.