T-Mobile US, Inc. business relationships

“License Agreement dated as of April 30, 2013 by and between T-Mobile US, Inc. and Deutsche Telekom AG.” SEC filing

“In addition, in July 2025, we entered into a multi-year agreement with T-Mobile US, Inc. ("T-Mobile") to use their network to deliver mobile services to Spectrum Business customers which is set to launch in 2026.” SEC filing

“We also have strategic partnerships with third parties, such as T-Mobile, which enable us to sell our services and products to certain of their customers.” SEC filing

“...mobile business, we have a nationwide mobile core network with multiple interconnection points (including Texas, California, Illinois, and two in New York), as well as the necessary interconnection points for our network partners T-Mobile and AT&T Inc. ("AT&T"), Appalachian Wireless and US Cellular.” SEC filing

“Our products utilize many of the world's leading telecommunications companies and Internet service providers, including, among others, AT&T, T-Mobile and Verizon.” SEC filing

“In fiscal years 2025 and 2024, our next largest customer, T-Mobile, accounted for 19.9% and 22.6% of our revenue, respectively.” SEC filing

“This decline in Family Safety revenues was primarily due to the migration of legacy Sprint customers onto the T-Mobile network, which has impacted our revenues associated with legacy Sprint subscribers for Family Safety, combined with a one-time event with one of our existing deployments that result...” SEC filing

“...tspeed); CityFibre Holdings Limited; Conexon Connect, LLC; Cox Communications, Inc.; Gridiron Fiber Corp. (dba Lumos, a T-Mobile Fiber company); Hunter Communications; ICS Advanced Technologies; Jade Communications, LLC; Rally Networks; South Central Telephone Association, Inc.; Tombigbee Electric P...” SEC filing

“We concluded that T-Mobile did not represent a "customer" as defined by ASC 606, the stated contract price did not represent consideration for services to be delivered, and the transaction did not satisfy the definition of revenue, which excluded this arrangement from the scope of ASC 606.” SEC filing

“• The Company offers free in-flight Wi-Fi for all Rapid Rewards Members through a partnership with T-Mobile;” SEC filing

“Our largest tenants are T-Mobile, AT&T and Verizon Wireless, which collectively accounted for approximately 90% of our 2025 site rental revenues.” SEC filing

“interexchange carriers and other long-distance resellers and providers, including large carriers such as T-Mobile, AT&T, and Verizon;” SEC filing

“These devices, sold under the Wavemaker brand, are sold by mobile operators such as T-Mobile, Verizon Wireless, and AT&T along with distribution and channel partners.” SEC filing

“A significant portion of our revenue during the year ended December 31, 2025 came from two customers, Verizon and T-Mobile, which together represented approximately 89% of our total revenues for the year ended December 31, 2025.” SEC filing

“Our music streaming customers include individual users and OEMs such as Tesla, Verizon, T-Mobile, and, to a lesser extent, advertisers and third-party licensees.” SEC filing

“We also have roaming agreements with each of the three US national wireless network carriers (AT&T, T-Mobile, and Verizon) along with several other wireless service providers.” SEC filing

“benefits - our largest US customer, T-Mobile” SEC filing

“In addition, in July 2025, Charter entered into a multi-year agreement with T-Mobile US, Inc. ("T-Mobile") to use its network to deliver mobile services to Spectrum Business customers which is set to launch in 2026.” SEC filing

“For the year ended December 31, 2025, our top four customers by total revenue were T-Mobile (18%), AT&T (17%), Verizon Wireless (14%) and Telefónica (10%).” SEC filing

“In addition to the Big 3 wireless carriers (T-Mobile, AT&T Wireless, Verizon Wireless), we also provided services or leased space to a number of other customers during 2025 including:” SEC filing

“Recently, the U.S. wireless service provider market has reduced to three nationwide wireless service providers, AT&T Wireless, T-Mobile, and Verizon Wireless, and our dependence on these three wireless service providers for our financial and operational growth has been exacerbated.” SEC filing

“As of July 31, 2025, the carrying value of the net assets sold to T-Mobile was $ 2,362.1 million.” SEC filing

“Further, at closing, Array and T-Mobile entered into a Master License Agreement (MLA), pursuant to which, among other things, T-Mobile has agreed to license from Array space on towers owned by Array.” SEC filing

“• T-Mobile MLA integration: Continued partnership with T-Mobile to implement the provisions of the long-term MLA.” SEC filing

“As a result, Array's business is substantially dependent upon T-Mobile, and if T-Mobile fails to meet its obligations under these leases to Array, this would have a significant adverse impact on Array's business and financial results.” SEC filing

“As of December 31, 2025, the T-Mobile Property was 100% leased to T-Mobile, a national cellular service retailer and provider.” SEC filing

“As of July 31, 2025, the carrying value of the net assets sold to T-Mobile w as $ 2,362.6 million.” SEC filing

“Further, at closing, Array and T-Mobile entered into a Master License Agreement (MLA), pursuant to which, among other things, T-Mobile has agreed to license from Array space on towers owned by Array.” SEC filing

“• T-Mobile MLA integration: Continued partnership with T-Mobile to implement the provisions of the long-term MLA.” SEC filing

“As a result, Array's business is substantially dependent upon T-Mobile, and if T-Mobile fails to meet its obligations under these leases to Array, this would have a significant adverse impact on TDS' business and financial results.” SEC filing