Salutations Tony, thank you for taking the time to ask 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 the following U.S. carriers: AT&T, Boost Mobile, Cricket, Google Fi, H2O Wireless, Mint Mobile, Sprint, T-Mobile, Ultra Mobile, US Cellular, and Verizon. We suggest reaching out to the compatible carrier of your choosing to inquire if this device would be functional while in Africa. If you would like further assistance, please contact Support. Thank you for being a devoted Samsung customer. - Debra