KDDI
Headquarters in Iidabashi, Chiyoda, Tokyo | |
Native name | KDDI株式会社 |
|---|---|
Romanized name | Keidīdīai kabushiki gaisha |
| Formerly | DDI Corporation (1984–2000) |
| Company type | Public KK |
| TYO: 9433 TOPIX Core 30 Component | |
| Industry | Telecommunications |
| Predecessor | KDD Corporation IDO Corporation |
| Founded | 1953 (establishment of Kokusai Denshin Denwa or KDD as a state-owned enterprise) June 1, 1984 (as DDI) |
| Founder | Government of Japan (for the KDD branch) Kazuo Inamori (for the DDI branch) |
| Headquarters | Iidabashi, , |
Key people | Takashi Tanaka (businessman) (CEO) Makoto Takahashi (businessman) (President & CEO) |
| Products | Fixed line and mobile telephony, Internet services, digital television |
| Revenue | JP¥ 5.24 trillion (2020) |
| JP¥ 639.77 billion (2020) | |
Number of employees | 44,952 (2020) |
| Subsidiaries | List
|
| Website | www.kddi.com |
KDDI Corporation (KDDI株式会社, KDDI Kabushiki Gaisha) (TYO: 9433) is a Japanese telecommunications operator. It was established in 2000 through the merger of DDI (第二電電, Daini Denden), KDD (ケイディディ), and IDO (日本移動通信, Nippon Idō Tsūshin). In 2001, it merged with a subsidiary named Au, which was formed through the merger of seven automotive and mobile phone companies from the DDI-Cellular Group. As of 2020, it is the second-largest mobile telecommunications provider in Japan in terms of the number of contracts, following NTT Docomo.
KDDI provides mobile cellular services using the Au brand. ISP network services are provided under the au one net brand, while "au Hikari" is the name under which long-distance and international voice and data communications services and Fiber to the Home (FTTH) services are marketed. ADSL broadband services carry the brand name "ADSL One", and IP telephony over copper is branded as "Metal Plus".