KDDI Corporation engages in the provision of mobile telecommunications services in Japan and internationally. It operates in two segments, Personal Services and Business Services. The Personal Services segment offers 5G telecommunication services and other services, such as finance, energy, and LX through its multi-brands comprising au, UQ mobile, and povo; and entertainment services, including video and games to individual customers. The Business Services segment provides smartphones and other devices, network and cloud services, and data center services to corporate customers under the TELEHOUSE brand name. It is also involved in the provision of solutions for the development and expansion of businesses through IoT, DX, generative AI, and other technology centered on 5G communications. The company was incorporated in 1984 and is headquartered in Tokyo, Japan.