The US fixed line operator Windstream has reported fourth-quarter profits of USD583.6 million, up from USD117.7 million a year ago, thanks to one-off gains from the sale of its directory business. Revenues for the three months to the end of December were stable at around USD827.8 million. Sales for the full year were up 8% at USD3.26 billion, while profits rose from USD545.3 million to USD917.1 million. Windstream saw access line numbers decline by about 5% year-on-year. Windstream was established in mid-2006 when Alltel Corporation spun off its wireline assets and merged them with Valor Communications. It operates in 16 states in the Midwestern and Southern United States.