ITU Callsigns - Italy.

Callsign blocks:-   I.
ISO 3166 code:-     ITA.EU
Timezone:-           (daylight savings time applies)

Amateur Allocations are as follows:-

The first two characters of the callsign indicate the following:-
 
I1 = Piemonte & Liguria
I2 = Lombardy
I3 = Veneto
I4 = Emilia Romagna
I5 = Toscana
I6 = Abruzzi & Marche
I7 = Puglia & Basilicata
I8 = Calabria & Campania & Molise 
I0 = Lazio & Umbria
IA = Archipelago of Tuscany
IB = Isole Ponziane
IC = Ventotene & Iscia & Capri
ID = Isole Eolie
IE = Isole Ustica
IF = Isole Egadi
IG = Isole Pelagie
IH = Pantelleria
IL = Isole Tremiti
IM = Sardinian islands
IN = Trentino Alto Adige
IS = Sardinia
IT = Sicily
IV = Venezia Giulia
IW = Technician class 
IX = Valle d'Aosta