CORAL GABLES, Fla., March 5 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that it will release results of operations for the year and quarter ended December 31, 2006 after the market closes on Thursday, March 8, 2007. Senior Management will also hold a conference call to discuss these results on Friday, March 9, 2007 at 10:00 a.m. Eastern time.

The call-in number for the conference call is (913) 312-1292 and the replay number is (719) 457-0820, with a pass code of 3861324. The replay will run for 30 days. Additionally, the call will be broadcast live over the Internet and can be accessed and replayed through the investor relations section of the Company's website at www.mastec.com.

MasTec is a leading specialty contractor operating throughout North America across a range of industries. The Company's core activities are the building, installation, maintenance and upgrade of communication and utility infrastructure systems. The Company's corporate website is located at www.mastec.com.

SOURCE MasTec, Inc.

CONTACT: J. Marc Lewis, Vice President-Investor Relations of MasTec, Inc., +1-305-406-1815, or fax, +1-305-406-1886, or marc.lewis@mastec.com