Hello there Serg, thank you for asking us your question about the Samsung Galaxy S25 Ultra. The advertised unlocked Galaxy S25 Ultra is the U.S. version of this device. It is compatible with AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Mint Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, and Visible. We suggest reaching out to a compatible carrier to inquire if this device would be functional while in Mexico. Feel free to reach out to Support if you have additional questions for us. Thanks for being a valued Samsung customer. - Debra