In the NUTS (Nomenclature of Territorial Units for Statistics) codes of Italy (IT), the three levels are:
Level Subdivisions # NUTS 1 Groups of regions (Gruppi di regioni) 5 NUTS 2 Regions (Regioni) (Trentino-Alto Adige/Südtirol split into two) 21 NUTS 3 Provinces (Province) 107
NUTS codes NUTS 1 Code NUTS 2 Code NUTS 3 Code Northwest Italy ITC Piemonte ITC1 Torino ITC11 Vercelli ITC12 Biella ITC13 Verbano-Cusio-Ossola ITC14 Novara ITC15 Cuneo ITC16 Asti ITC17 Alessandria ITC18 Valle d'Aosta ITC2 Aosta ITC20 Liguria ITC3 Imperia ITC31 Savona ITC32 Genova ITC33 La Spezia ITC34 Lombardia ITC4 Varese ITC41 Como ITC42 Lecco ITC43 Sondrio ITC44 Bergamo ITC46 Brescia ITC47 Pavia ITC48 Lodi ITC49 Cremona ITC4A Mantova ITC4B Milano ITC4C Monza and Brianza ITC4D South Italy ITF Abruzzo ITF1 L'Aquila ITF11 Teramo ITF12 Pescara ITF13 Chieti ITF14 Molise ITF2 Isernia ITF21 Campobasso ITF22 Campania ITF3 Caserta ITF31 Benevento ITF32 Napoli ITF33 Avellino ITF34 Salerno ITF35 Puglia ITF4 Taranto ITF43 Brindisi ITF44 Lecce ITF45 Foggia ITF46 Bari ITF47 Barletta-Andria-Trani ITF48 Basilicata ITF5 Potenza ITF51 Matera ITF52 Calabria ITF6 Cosenza ITF61 Crotone ITF62 Catanzaro ITF63 Vibo Valentia ITF64 Reggio Calabria ITF65 Insular Italy ITG Sicilia ITG1 Trapani ITG11 Palermo ITG12 Messina ITG13 Agrigento ITG14 Caltanissetta ITG15 Enna ITG16 Catania ITG17 Ragusa ITG18 Siracusa ITG19 Sardegna ITG2 Sassari ITG25 Nuoro ITG26 Cagliari ITG27 Oristano ITG28 Olbia-Tempio ITG29 Ogliastra ITG2A Medio Campidano ITG2B Carbonia-Iglesias ITG2C Northeast Italy ITH Trentino-Alto Adige/Südtirol ITH1 South Tyrol ITH10 ITH2 Trento ITH20 Veneto ITH3 Verona ITH31 Vicenza ITH32 Belluno ITH33 Treviso ITH34 Venezia ITH35 Padova ITH36 Rovigo ITH37 Friuli-Venezia Giulia ITH4 Pordenone ITH41 Udine ITH42 Gorizia ITH43 Trieste ITH44 Emilia-Romagna ITH5 Piacenza ITH51 Parma ITH52 Reggio Emilia ITH53 Modena ITH54 Bologna ITH55 Ferrara ITH56 Ravenna ITH57 Forlì-Cesena ITH58 Rimini ITH59 Central Italy ITI Toscana ITI1 Massa-Carrara ITI11 Lucca ITI12 Pistoia ITI13 Firenze ITI14 Prato ITI15 Livorno ITI16 Pisa ITI17 Arezzo ITI18 Siena ITI19 Grosseto ITI1A Umbria ITI2 Perugia ITI21 Terni ITI22 Marche ITI3 Pesaro-Urbino ITI31 Ancona ITI32 Macerata ITI33 Ascoli Piceno ITI34 Fermo ITI35 Lazio ITI4 Viterbo ITI41 Rieti ITI42 Roma ITI43 Latina ITI44 Frosinone ITI45
The following codes have been discontinued: ITC45 (Milano) was split into ITC4C and ITC4D. ITD (Northeast Italy) became ITH. ITE (Central Italy) became ITI. ITF41 (Foggia) and ITF42 (Bari) were split into ITF46, ITF47, and ITF48. ITG21 (Sassari), ITG22 (Nuoro), ITG23 (Oristano), and ITG24 (Cagliari) were split into the current divisions of ITG2.
Local administrative units
Below the NUTS levels, the two LAU (Local Administrative Units) levels are:
Level Subdivisions # LAU 1 — (same as NUTS 3) 107 LAU 2 Municipalities (Comuni) 8094
The LAU codes of Italy can be downloaded here:
See also Subdivisions of Italy ISO 3166-2 codes of Italy FIPS region codes of Italy
References
Sources Hierarchical list of the Nomenclature of territorial units for statistics - NUTS and the Statistical regions of Europe Overview map of EU Countries - NUTS level 1 ITALIA - NUTS level 2 ITALIA - NUTS level 3 Correspondence between the NUTS levels and the national administrative units List of current NUTS codes Download current NUTS codes (ODS format) Provinces of Italy, Statoids.com