Palm Beach Gardens, Florida, May 16, 2007 — Dycom Industries, Inc. (NYSE: DY) will release its fiscal 2007 third quarter earnings on Tuesday, May 22, 2007, after the close of trading on the New York Stock Exchange.

Dycom has scheduled a conference call for Wednesday, May 23, at 9:00 a.m. (ET). To participate in the conference call, dial 800-230-1085 (United States) or 612-234-9960 (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 Friday, June 22, 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.