NTT Docomo, Inc. (株式会社NTTドコモ; stylized as NTT DoCoMo until 2008), a.k.a. the Docomo (ドコモ, Dokomo), is a Japanese mobile phone operator owned by the Nippon Telegraph and Telephone (NTT). The name is officially an abbreviation of the phrase, “do communications over the mobile network”, but is also from Japanese どこも (doko mo, ‘everywhere’). The company is headquartered in Sanno Park Tower, Nagatachō, Chiyoda, Tokyo. Docomo provides phone, video phone (FOMA and some PHS), i-mode (internet), and mail (i-mode mail, Short Mail, and SMS) services. It is the largest wireless carrier in Japan, with 91.407 million subscribers as of October 2025.