CORAL GABLES, Fla., Feb. 28 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that it will release results of operations for the year and quarter ended December 31, 2005 after the market closes on Wednesday, March 1, 2006. Senior Management will also hold a conference call to discuss these results on Thursday, March 2, 2006 at 10:00 a.m. Eastern time.

The call-in number for the conference call is (913) 312-1299 and the replay number is (719) 457-0820, with a pass code of 4712547. 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 http://www.mastec.com .

MasTec < http://www.mastec.com > is a leading specialty contractor operating throughout the United States and in Canada across a range of industries. The Company's core activities are the building, installation, maintenance and upgrade of communication and utility infrastructure systems.

SOURCE  MasTec, Inc.
    -0-                             02/28/2006
    /CONTACT:  J. Marc Lewis, Vice President-Investor Relations, MasTec,
+1-305-406-1815, or fax, +1-305-406-1886, or marc.lewis@mastec.com/
    /Web site:  http://www.mastec.com /
    /Audio:  /
    (MTZ)

CO:  MasTec, Inc.
ST:  Florida
IN:  TLS CPR CST
SU:  CCA

MR-DS
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5030 02/28/2006 12:35 EST http://www.prnewswire.com