Palm Beach Gardens, Florida, November 13, 2007 — Dycom Industries, Inc. (NYSE: DY) will release its fiscal 2008 first quarter earnings on Monday, November 19, 2007, after the close of trading on the New York Stock Exchange.

Dycom has scheduled a conference call for Tuesday, November 20, at 9:00 a.m. (ET). To participate in the conference call, dial 866-205-3921 (United States) or 612-332-0718 (International) ten minutes before the conference call begins and ask for the "Dycom Earnings" conference call. A live webcast of the conference call will be available at http://www.dycomind.com. If you are unable to attend the conference call at the scheduled time, a replay of the live webcast will also be available at http://www.dycomind.com until Thursday, December 20, 2007.

Dycom is a leading provider of specialty contracting services throughout the United States. These services include engineering, construction, maintenance and installation services to telecommunications providers, underground locating services to various utilities, including telecommunications providers, and other construction and maintenance services to electric utilities and others.