Adtran Revises Guidance

HUNTSVILLE, Ala. -- ADTRAN, Inc. (NASDAQ: ADTN - News) today announced revised guidance for the third quarter ending September 30, 2005. Revenue for the quarter is expected to range from $143 million to $147 million. Earnings per share for the quarter, assuming dilution, are expected to range from $0.38 to $0.40.

ADTRAN Chairman and Chief Executive Officer Mark Smith stated, "Quarter-to-date bookings have been stronger than anticipated in both primary growth and traditional areas. We expect our momentum will result in record revenue and operating income this year."

The Company also issued revised guidance for the year 2005. Revenue for the year is expected to range from $503 million to $511 million. Earnings per share, assuming dilution, are expected to range from $1.18 to $1.22.

ADTRAN, Inc. is one of the world's most successful network access equipment suppliers, with a 17-year history of profitability and a portfolio of more than 1,300 solutions for use in the last mile of today's telecommunications networks. Widely deployed by both carriers and enterprises, ADTRAN solutions enable voice, data, video, and Internet communications across copper, fiber, and wireless network infrastructures. ADTRAN solutions are currently in use by every major domestic service provider and many international ones, as well as by thousands of public, private and government organizations worldwide.

Adtran Inc.