We own, operate and lease shared communications infrastructure that is geographically dispersed throughout the U.S., including (1) more than 40,000 towers and other structures, such as rooftops (collectively, "towers"), (2) approximately 105,000 small cell nodes either currently generating revenue or under contract and (3) approximately 90,000 route miles of fiber primarily supporting small cells and fiber solutions. We refer to our towers, small cells and fiber assets collectively as "communications infrastructure," and, at times, to our customers on our communications infrastructure as "tenants." Our operating segments historically consisted of (1) Towers and (2) Fiber, which includes both small cells and fiber solutions. On March 13, 2025, management signed a definitive agreement ("Strategic Fiber Agreement") to sell our Fiber segment, together with certain supporting assets and personnel ("Fiber Business"), with Zayo Group Holdings Inc. ("Zayo") acquiring the fiber solutions business and EQT Active Core Infrastructure fund ("EQT") acquiring the small cell business ("Strategic Fiber Transaction").