Zipcar, Inc. (Zipcar), operates a car sharing network. The Company provides over 775,000 members, also known as Zipsters, with self-service vehicles that are located in reserved parking spaces throughout the neighborhoods where they live and work. The Company's may reserve cars by the hour or by the day at rates that include gas, insurance and other costs associated with car ownership. The Company's system provides car sharing iPhone, Android and Reserve a Zipcar, Facebook applications, as well as its mobile Website, which can be used on smartphones. It also provides two-way short messaging service ( SMS) texting. The Company focuses its operations in three metropolitan areas: Boston, New York and Washington, D.C. It also operates in San Francisco, Los Angeles, Chicago, Baltimore, Providence, Austin, Miami, Toronto, Vancouver and London. In July 2012, the Company acquired Denzel Mobility CarSharing GmbH.