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
Vandal Sardinia Belisarius had defeated Gelimero on August 30, 533 and occupied Carthage. He was followed by Cirillus, who had failed to reach Sardinia. Tzazo and Gelimer, together with what remained of the army, marched against the Byzantines but were defeated at the Battle of Tricamarum, from Carthage. Tzazo was killed while Gelimero, escaping capture, surrendered a few months later. Cirillus then went to Calaris where he showed Tzazo's head impaled on a pike to the Vandals of the garrison, who immediately surrendered. Thus the Vandal era in Sardinia ended in 534 and the Byzantine period began. The Sardinian dioceses of the