Howdy Zab, thanks for taking the time out of your hectic day to ask us your question about the Samsung Galaxy A16. The advertised unlocked Galaxy A16 is the U.S. version of this device. It is compatible with the following U.S. carriers: AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Metro by T-Mobile, Mint Mobile, Sprint, T-Mobile, Ting Mobile, Ultra Mobile, US Cellular, and Verizon. We suggest reaching out to the wireless carrier of your choosing from the list above to inquire if this device would be fully functional while in Mexico. Reach back out to Support if you have any other questions for us. Thank you for choosing Samsung! - Debra