Good day July, thank you for taking the time to ask us your question about the Samsung Galaxy S25. The advertised U.S. version, unlocked Galaxy S25 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. If you have any other questions, please feel free to contact Support. Thank you for being a dedicated Samsung customer. - Debra