Adtran (NASDAQ:ADTN) reported quarterly earnings of $0.14 per share which beat the analyst consensus estimate of $0.09 by 55.56 percent. This is a 366.67 percent increase over earnings of $0.03 per share from the same period last year. The company reported quarterly sales of $286.086 million which beat the analyst consensus estimate of $285.536 million by 0.19 percent. This is a 15.48 percent increase over sales of $247.744 million the same period last year.