Greetings Blue2, thank you for taking the time to ask us your question about the Samsung Galaxy S26 Ultra. The advertised unlocked Galaxy S26 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. Please feel free to reach out to Support if you have any other questions for us. Thanks for being a faithful Samsung customer. - Debra