The name is officially an abbreviation of the phrase, "do communications over the mobile network", and is also from a compound word dokomo, meaning "everywhere" in Japanese.

NTT Docomo is listed on the Tokyo (9437), London (NDCM), and New York (DCM) stock exchanges.

[11] In July 2012, NTT Docomo acquired Italy's Buongiorno in a deal worth 209 million euros.

[12] In October 2007, Docomo and Mitsubishi Electric showcased a prototype mobile phone at the CEATEC trade show.

The phone checked health by tracking body movement and measuring calories, and included a breath analyzer.

[citation needed] In August 2021, Docomo and Airbus demonstrated a solar-powered Zephyr High Altitude Platform Station (HAPS) for use with 5G and 6G technology.

The trial took place in the United States over 18 days, and involved flying in the stratosphere and transmitting data at various speeds up to a distance of 140 km.

[19][needs update] From 2008, Docomo began offering a service called the "Area Mail Disaster Information Service" which broadcasts Earthquake Early Warning messages produced by the Japan Meteorological Agency to its subscribers with compatible handsets.

From 2014, under Civil Protection Law of Japan, Docomo began offering a service called the "Area Mail Disaster and Evacuation Information Service" which broadcasts J-Alert messages (including Earthquake Early Warning) produced by the Japan Fire and Disaster Management Agency to its subscribers with compatible handsets (e.g. Sony XPERIA, iPhone 5s, Samsung Galaxy).

[21] The message is broadcast when threats are imminent (e.g. North Korea's ballistic missile launching, terrorist attack to nuclear power plant, volcanic eruptions, or an approaching tsunami.)

Shigetaka Kurita, who was part of the team working on NTT DoCoMo's i-mode mobile Internet platform, that has been credited as the first creator of emoji.

Similarly, the copyright for emoji used on platforms such as Facebook, Twitter, and WhatsApp belong to the respective companies.

In December 2007, NTT Docomo and KT Freetel jointly invested US$200 million for a total of 33% stake in U Mobile Malaysia.

[25] In December 2006 they acquired Guamcell, the largest phone company in Guam, and changed its name to DOCOMO PACIFIC.

It was established on March 31, 2008, and was originally owned and operated by the internet service provider NTT Plala.