CORAL GABLES, Fla., Nov. 1 /PRNewswire-FirstCall/ -- MasTec, Inc. (NYSE: MTZ) today announced that it intends to release its results of operations for the quarter ended September 30, 2005, after the financial markets close on Monday, November 7, 2005.

Management will also hold a conference call to discuss results of operations on Tuesday, November 8, 2005, at 10:00 a.m. Eastern Time. The call-in number for the conference call is (913) 312-1293 and the replay number is (719) 457-0820, with a pass code of 4170251. The replay will run for 30 days.

The call will also 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 is a leading voice, video, data, and public utility infrastructure service provider. The Company designs, builds, installs, maintains, upgrades and monitors internal and external networks for leading companies and government entities.

This press release and any accompanying documents contain forward-looking statements, such as statements regarding MasTec's future growth and profitability, growth strategy, and anticipated trends in the industries and economies in which MasTec operates. The words "anticipate," "estimate," "should," "expect," "believe," "intend," "target," "project" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based on MasTec's current expectations and are subject to a number of risks, uncertainties, and assumptions, including that our revenue and profits may differ from that projected, that we may be further impacted by slowdowns in our clients' businesses or in the economy in general, that our reserves for receivables may be inadequate and that we may experience increased costs associated with realigning our business or may be unsuccessful in those efforts. Should one or more of these risks or uncertainties materialize, or should the underlying assumptions prove incorrect, actual results may differ significantly from results expressed or implied in any forward-looking statements made by MasTec in this press release. These and other risks are detailed in this press release and/or documents filed by MasTec with the Securities and Exchange Commission. MasTec does not undertake any obligation to revise these forward-looking statements to reflect future events or circumstances.

SOURCE MasTec, Inc.

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

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