Crown Castle owns, operates and leases shared communications infrastructure that is geographically dispersed throughout the U.S., including towers and other structures, such as rooftops, and miles of fiber primarily supporting small cell networks and fiber solutions. Their operating segments consist of (1) Towers and (2) Fiber, which includes both small cells and fiber solutions. Their core business is providing access, including space or capacity, to our shared communications infrastructure via long-term contracts in various forms, including lease, license, sublease and service agreements.