AT&T has upgraded its wireless network in Sardinia, Ohio to expand 4G LTE coverage for local residents and businesses. The network upgrade provides faster mobile internet speeds and improved performance. A state senator applauded AT&T's efforts to recognize customer needs and expand educational and economic opportunities. AT&T has invested over $1.6 billion in Ohio's wireless and wired networks between 2012 and 2014, and aims to deliver the nation's best mobile internet experience.