Hi Teetee, thanks for taking the time out of your day to ask us your question about the Samsung Galaxy S25 Ultra. The advertised unlocked Galaxy S25 Ultra (U.S. version) is compatible with AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Mint Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, and Verizon. If you have any other questions, feel free to reach out to Support. Thanks for being a valued Samsung customer. - Debra