Spectrum Information Technologies

Spectrum Information Technologies, Inc. (SITI), formerly Spectrum Cellular Communications Corporation (SPCL; doing business as Spectrum Cellular Corporation), was an American telecommunications and networking hardware company active from 1983 to 2006. It was a pioneer in mobile broadband technology, being the first company to harness the cellular telephone network for computer networking purposes. The company's Bridge, released in 1984, was the first cellular modem ever released. Despite its innovative prowess, the company never had a profitable year. Originally based in Dallas, Texas, Spectrum moved its headquarters to Long Island, New York, in 1992.

Throughout the mid-1990s, the company was embroiled in a number of high-profile controversies regarding securities fraud. Spectrum made headlines in 1993 following the hiring of John Sculley, formerly the CEO of Apple Computer, in October 1993 and his acrimonious exit only four months later. In 1999, they changed their name to SITI-Sites.com, Inc., and pivoted to e-commerce. In November 2006, the company's shareholders agreed to liquidate its assets in full.