KDDI Corp. engages in the telecommunications business. It operates through the following segments: Personal Services, Value Services, Business Services, Global Services, and Others. The Personal Services segment provides mobile handset sales and other services. The Value Services segment offers various types of content and settlement services. The Business Services segment deals with communication services, mobile handset sales, data center services, various types of information and communication technology (ICT) solution/cloud services, and other services for corporate customers. The Global Services segment involves communications services, data center services, various types of ICT solution/cloud services, and other services for companies and individuals overseas. The Others segment includes construction and maintenance of facilities, call centers, research, and advanced technology development. The company was founded by Kazuo Inamori on June 1, 1984 and is headquartered in Tokyo, Japan.