Leichtman Research Group, "Research Notes," First Quarter 2012, pg. 5. The company first gained status as the USA's third largest phone company in 2009. See: Comcast Now Third Largest Phone Company, DSLreports.com, març 11, 2009.
Leichtman Research Group, "Research Notes," First Quarter 2012, pg. 5. The company first gained status as the USA's third largest phone company in 2009. See: Comcast Now Third Largest Phone Company, DSLreports.com, març 11, 2009.