BI — Burundi

Burundi is one of the smallest countries in mainland Africa, located in the Great Lakes region of East Africa. The political capital was moved from Bujumbura to Gitega in 2019, though Bujumbura remains the economic center. Burundi is trilingual — Kirundi, French, and English are all official languages, creating interesting localization challenges. The Burundian Franc (BIF) is notable for having no subdivision (no cents), which affects how currency values are formatted. For developers, the BI country code maps to locales like rn-BI for Kirundi and fr-BI for Burundian French. The .bi domain and +257 calling code serve Burundian digital infrastructure. Burundi's multilingual nature makes it a valuable test case for applications that need to support multiple African languages alongside European colonial languages. Mobile phone adoption is high relative to internet access, making SMS and USSD interfaces important for reaching Burundian users.