Sardinia the highest internet performances, such as fastest broadband connection in Italy. Sardinia is also the Italian region with the highest percentage (41%) of 4G LTE users. The Chinese multinational telecommunications equipment and systems companies ZTE and Huawei have development centers and innovation labs in Sardinia. Sardinia has become Europe's first region to fully adopt the new Digital Terrestrial Television broadcasting standard. From 1 November 2008 TV channels are broadcast only in digital. Sardinia has three international airports (Alghero-Fertilia/Riviera del Corallo Airport, Olbia-Costa Smeralda Airport and Cagliari-Elmas Airport) connected with the principal Italian cities and many European destinations, mainly in the
Kingdom of Sardinia Piedmont-Sardinia, or even the Kingdom of Piedmont to emphasise that the island of Sardinia was of secondary importance to the monarchy. The formal name of the entire Savoyard state was the "States of His Majesty the King of Sardinia". Its final capital was Turin, the capital of Savoy since the Middle Ages. The kingdom initially consisted of the islands of Corsica and Sardinia, sovereignty over both of which was claimed by the Papacy, which granted them as a fief, the "regnum Sardiniae et Corsicae" ("kingdom of Sardinia and Corsica"), to King James II of Aragon in 1297. Beginning in 1324,