Howdy JulianR, thanks for taking the available time out of your day to ask us your question about the Samsung Galaxy S24. The advertised unlocked (U.S. Version) Galaxy S24 is compatible with the following U.S. wireless carriers: AT&T, Boost Mobile, Cricket, H2O Wireless, Metro by T-Mobile, Mint Mobile, Simple Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, Verizon, and Google Fi. This device works well on the 5G, 4G, 4G LTE, and GSM networks. We recommend reaching out to the carrier of your choosing to inquire if this device would receive service in Columbia. Feel free to contact Support if you have any other questions for us. Thank you for being a valued Samsung customer. - Debra