Howdy Plumber31, thank you for taking the time to ask us your question about the Samsung Galaxy S25 Ultra. The advertised unlocked Galaxy S25 Ultra is compatible with AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Mint Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, and Visible. If you have additional questions for us or if you would like any further assistance, please feel free to reach out to Support. Thanks for choosing Samsung! - Debra