USTelecom announces Ben Elleson, ex-office of Rep. Kat Cammack, R-Fla., as senior director-government affairs … TDS Telecommunications adds vice president-data management position for Steve Mathesius, who also continues chief information security officer, leading cybersecurity and risk management functions at TDS Telecom and parent company, Telephone and Data Systems … Telecon promotes Executive Vice President-Chief Customer Officer Robert Pothier to president-CEO and adds him to its board ... Hitachi Vantara, Hitachi’s hybrid cloud management subsidiary, names Palo Alto Networks’ Tony Gonnella chief financial officer ... Southern Co. hires Bentina Terry from Southern subsidiary Georgia Power as president-CEO of Southern Communications, with responsibility for leading the Southern Linc and Southern Telecom business units, and Arnab Ghosal as Southern Telecom vice president-chief operating officer in addition to his current role at Alabama Power, another Southern subsidiary, both effective Jan. 1.