Salutations Franek, thanks for taking the opportunity to ask us your question about the Samsung Galaxy S25 Ultra. The advertised Galaxy S25 Ultra is compatible with the following U.S. carriers: AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Mint Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, and Verizon. Feel free to reach out to Support if you think of additional questions. Thank you for being a dedicated Samsung customer. - Debra