The U.S. Embassy to Angola and Sao Tome and Principe is seeking a service provider for mobile telephone and data services, including 4G network coverage, voice, SMS, roaming, and international calls on both prepaid and postpaid bases. The contract will be a firm fixed-price Indefinite Delivery Indefinite Quantity type, with a one-year performance period. Performance will take place at the U.S. Embassy in Luanda, Angola. All responsible sources may submit a quotation, and the government may award without discussion. Contractors must be registered in the SAM database unless an exception applies.