T-Mobile US, Inc. 10-K

Item 2. Properties Our properties are best described on a collective basis, as no individual property is material. Our property and equipment consists of the following: (percent of gross property and equipment) December 31, 2023 December 31, 2022 Wireless communications systems 68 % 68 % Land, buildings and building equipment 5 % 5 % Data processing equipment and other 27 % 27 % Total 100 % 100 % Wireless communications systems primarily consist of assets used to operate our wireless network and information technology data centers, including switching equipment, radio frequency equipment, tower assets, High Speed Internet routers, construction in progress and leasehold improvements related to the wireless network and asset retirement costs. Land, buildings and building equipment primarily consist of land and land improvements, central office buildings or any other buildings that house network equipment, buildings used for administrative and other purposes, related construction in progress and certain network service equipment. Data processing equipment and other primarily consist of data processing equipment, office equipment, capitalized software, leased wireless devices, construction in progress and leasehold improvements. We also lease distributed antenna systems and small cell sites, as well as properties throughout the United States that contain data and switching centers, customer call centers, retail locations, warehouses and administrative spaces. Item 3. Legal Proceedings For more information regarding the legal proceedings in which we are involved, see Note 17 – Commitments and Contingencies of the Notes to the Consolidated Financial Statements. Item 4. Mine Safety Disclosures Not applicable. 27 Table of Contents PART II.