The document is a Form 20-F registration statement filed by Telecom Italia S.p.A. with the U.S. Securities and Exchange Commission for the fiscal year ending December 31, 2010. It includes information on the company's registration details, securities, outstanding shares, and financial performance, as well as a comprehensive overview of its operations, management, and relevant financial disclosures. The document serves as an essential report for investors and regulators regarding Telecom Italia's compliance with U.S. securities laws.