sensors Mode-S transponder

300A63

ICAO 24-bit transponder address · allocated to Italy

Currently assigned to I-ITYE · AIRBUS A-330-900

Hex
300A63
Octal
14005143
Decimal
3,148,387
Country
IT
Tail
I-ITYE
Type
A339
Broadcasting now · callsign ITY609 · 4,725 ft
Flights observed
10
Distinct callsigns
3
Country
IT
Last broadcast
16h ago

Current position

300A63 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 300A63 falls within the block assigned to Italy (IT) by ICAO Annex 10, Volume III. Every aircraft registered in Italy 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 3 distinct

Callsign Airline Flights Last seen
ITY770 ITA Airways 4 2026-04-13
ITY769 ITA Airways 4 2026-04-14
ITY608 ITA Airways 2 2026-04-14

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 ITY608 FCO → JFK Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 ITY608 FCO → JFK Apr 14, 08:40 UTCApr 14, 09:05 UTC25m
2026-04-14 ITY769 DEL → FCO Apr 14, 05:15 UTCApr 14, 06:10 UTC55m
2026-04-13 ITY769 - Apr 13, 21:55 UTCApr 13, 22:35 UTC40m
2026-04-13 ITY770 FCO → DEL Apr 13, 19:05 UTCApr 13, 19:40 UTC35m
2026-04-13 ITY770 FCO → DEL Apr 13, 15:50 UTCApr 13, 19:40 UTC3h 50m
2026-04-13 ITY770 FCO → DEL Apr 13, 12:30 UTCApr 13, 16:00 UTC3h 30m
2026-04-13 ITY769 - Apr 13, 04:30 UTCApr 13, 06:25 UTC1h 55m
2026-04-13 ITY769 - Apr 13, 02:20 UTCApr 13, 03:35 UTC1h 15m
2026-04-12 ITY770 FCO → DEL Apr 12, 19:20 UTCApr 12, 20:10 UTC50m

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 I-ITYE page for operator, model, and routing details .

Mode-S 300A63 frequently asked

What is Mode-S code 300A63?
300A63 is an ICAO 24-bit transponder address. Allocated to Italy. Assigned to I-ITYE.
Where is Mode-S 300A63 registered?
Mode-S code 300A63 is allocated to Italy (IT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 300A63 broadcasting right now?
Yes. Mode-S 300A63 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 300A63, octal 14005143, decimal 3,148,387.
What flights does 300A63 operate?
Mode-S 300A63 has broadcast 3 distinct callsigns, including ITY770, ITY769, ITY608.