Adtran (NASDAQ:ADTN) reported quarterly earnings of $0.04 per share which missed the analyst consensus estimate of $0.10 by 60 percent. The company reported quarterly sales of $281.146 million which missed the analyst consensus estimate of $290.157 million by 3.11 percent. This is a 6.07 percent increase over sales of $265.068 million the same period last year.