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
Flag of Sardinia ruled by the Savoy House Flag of Sardinia The flag of Sardinia, called the flag of the Four Moors or simply the Four Moors (; in Logudorese or "Is cuattru morus" in Campidanese), is the flag of the island of Sardinia (Italy), first officially adopted by the autonomous region in 1950 with a revision in 1999, describing it as a "white field with a red cross and a bandaged Moor's head facing away from the left (the edge close to the mast) in each quarter" (Regional Law 15 April 1999, n. 10, Article 1.). It was also the historical flag