The Guyana Telephone and Telegraph Co. Ltd. (GT&T) commenced operations on January 28, 1991.Towards the end of the 1980s the Government of Guyana took a decision to privatize telecommunications as part of a broader economic reform. In 1990, the Parties signed an Agreement in which ATN acquired eighty percent of the telephone company and the Government retained twenty. When this Agreement was consummated, the new Guyana Telephone and Telegraph Company Limited replaced the Guyana Telecommunication Corporation. Between its inception and September 2004, GT&T had invested in excess of US$195 million towards the modernization and expansion of the national telecommunications infrastructure and facilities.