The Sovereign Military Hospitaller Order of Saint John of Jerusalem, of Rhodes and of Malta (EU Area EC01) is a Roman Catholic order based in Rome, Italy. With its unique history and unusual present circumstances the exact status of the Order has been the subject of debate: it claims to be a traditional example of a sovereign entity other than a state. Its two headquarters in Rome, namely the Palazzo Malta in Via dei Condotti 68 (where the Grand Master resides and Government Bodies meet), and the Villa Malta on the Aventine (which hosts the Grand Priory of Rome, the Embassy of the Order to Holy See and the Embassy of the Order to Italy), are granted extraterritoriality.

The State of the Vatican City (EU Area EC05) is a landlocked sovereign city-state whose territory consists of a walled enclave within the city of Rome. At approximately 44 hectares, and with a population of around 800, it is the smallest independent state in the world by both population and area.

Campione d'Italia is an Italian comune (municipality) of the Province of Como (EU Area IT15) in the Lombardy region, occupying an enclave within the Swiss canton of Ticino, separated from the rest of Italy by Lake Lugano and mountains. The enclave is less than 1 kilometre as the crow flies from the rest of Italy, but the hilly terrain requires a journey by road of over 14 kilometres to reach the nearest Italian town, Lanzo d'Intelvi, and over 28 kilometres to reach the city of Como.

Mario Zucchelli Station is an Italian research station located at Terra Nova Bay, Antarctica and named for Mario Zuchelli, late director of the Italian Antarctic Program. This facility is operated during the summer months (October - February) and hosts a variety of scientific projects. Terra Nova Bay is a bay which is often ice free, about 64 km long, lying between Cape Washington and the Drygalski Ice Tongue along the coast of Victoria Land, Antarctica.

The Pelagie Islands (IOTA AF-019) are the three small islands of Lampedusa, Linosa, and Lampione, located in the Mediterranean Sea between Malta and Tunisia, south of Sicily. Geographically the archipelago belongs to the African continent; politically and administratively the islands fall within the Sicilian province of Agrigento and represent the southernmost part of Italy.

The Pantelleria (IOTA AF-018), the ancient Cossyra, is an island in the Strait of Sicily in the Mediterranean Sea, 100 km southwest of Sicily and just 70 km east of the Tunisian coast. Geographically the island belongs to the African continent. Administratively Pantelleria is a commune belonging to the Sicilian province of Trapani.

In the 19th and 20th centuries, Tavolara island (IOTA EU-165) off the northeast coast of Sardinia was ruled by the Bertoleoni family as the Kingdom of Tavolara, one of the smallest kingdoms on the planet. It is now simply part of Italy, although it was never formally annexed. The island and the surrounding waters are part of the Tavolara and Punta Coda Cavallo Marine Preserve created in 1997. The environmental protections placed on the park have added restrictions to the use of the area for tourism. Administratively Tavolara is an island belonging to the Sardinian province of Olbia-Tempio (EU Area SD08).

After the end of World War II, the Free Territory of Trieste was established as a free state on September 15, 1947. On October 26, 1954, Italy and Yugoslavia came to an understanding whereby the territory de facto was divided between the two states. Zone A of the free state became the Province of Trieste and Zone B was to be administered by Yugoslavia. The Province of Trieste (EU Area IT88) formally became a part of Italy on October 11, 1977, by the Treaty of Osimo.

Seborga is a small town in the region of Liguria in northwest Italy, near the French border. Administratively, it is a comune of the Italian province of Imperia, although some locals claim that it is an independent principality. Uniquely among micronations, Seborga possesses an undisputed history as a feudal state. There is no tension between the "Principality" of Seborga (EU Area EC07) and the Italian government. Law enforcement, public health, telecommunications, school services and all other public services are provided as in the rest of Italy. There were a few HAM visitors in Seborga since 1994. They used various unofficial prefixes, such as ØS, 1P, T8, and the last one was TØ. There are no political things at all, we keep this entity as a separate EU Area just for our amateur fun.

The Most Serene Republic of San Marino (EU Area EC06) is a country in the Apennine Mountains. It is a landlocked enclave, completely surrounded by Italy. One of the European microstates, San Marino has the smallest population of all the members of the Council of Europe. San Marino is the oldest sovereign state and constitutional republic in the world, having been founded on 3 September 301 by Marinus of Rab, a Christian stonemason fleeing the religious persecution of Roman Emperor Diocletian. San Marino's constitution of 1600 is the world's oldest constitution still in effect.