The room measures about 24 by 48 feet (7.3 by 14.6 m) and contains several racks of equipment, including a Narus STA 6400, a device designed to intercept and analyze Internet communications at very high speeds. Overview Room 641A is a telecommunication interception facility operated by for the U.S., as part of an Room 641A is located in the building at 611 Folsom Street,, three floors of which were occupied by before SBC purchased AT&T. The room was referred to in internal. The (EFF) filed a class-action lawsuit,, against the company on January 31, 2006, accusing the telecommunication company of violating the law and the privacy of its customers.
