Good day Javier, 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's compatible with the following U.S. wireless carriers: AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Mint Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, and Visible. Please feel free to contact a compatible carrier of your choosing to inquire if this device would receive wireless service while in Columbia. Let us know afterward if you'd like further assistance by reaching out to Support. Thank you for being a valued Samsung customer. - Debra