Established on November 1, 1999, its headquarters were originally located in San Jose, California.

As of July 9, 2001, the USA headquarters were officially moved to New York City.

With offices in New York, Washington DC, and a research lab facility in San Jose, California.

NTT Docomo USA began its Docomo USA Wireless service as a Mobile Virtual Network Operator (MVNO) on April 6, 2011.

[2] The company's mobile phone service targets the Japanese market in the U.S. NTT Docomo USA is noted for implementing the first open source Secure Neighbor Discovery (SEND), a cryptographic solution that counteract threats to the Neighbor Discovery Protocol.