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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

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FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

Date of report (Date of earliest event reported) December 23, 2004

MASTEC, INC.

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Florida

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800 S. Douglas Road, 12^th Floor, Coral Gables, Florida 33134

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(305) 599-1800

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N/A

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

On December 23, 2004, MasTec, Inc. (the “Company”) issued a press release announcing its financial results as of and for the three months ended March 31, 2004 and as of and for the three months and six months ended June 30, 2004. A copy of the press release is furnished as Exhibit 99.1 to this Report on Form 8-K. The information contained in this report on Form 8-K, including Exhibit 99.1 shall not be deemed “filed” with the Securities and Exchange Commission nor incorporated by reference in any registration statement filed by the Company under the Securities Act of 1933, as amended.

ITEM 7.01. REGULATION FD DISCLOSURE

On December 23, 2004, MasTec, Inc. (the “Company”) issued a press release announcing its financial results as of and for the three months ended March 31, 2004 and as of and for the three months and six months ended June 30, 2004. A copy of the press release is furnished as Exhibit 99.1 to this Report on Form 8-K. The information contained in this report on Form 8-K, including Exhibit 99.1 shall not be deemed “filed” with the Securities and Exchange Commission nor incorporated by reference in any registration statement filed by the Company under the Securities Act of 1933, as amended.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

(a)		Financial Statements of Businesses Acquired
		Not Applicable.
(b)		Pro Forma Financial Information
		Not Applicable.
(c)		Exhibits
		The following exhibits are filed with this report:

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SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: December 23, 2004	MASTEC, INC
	BY: /s/ C. Robert Campbell
	C. Robert Campbell
	Chief Financial Officer MASTEC, INC

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EXHIBIT INDEX

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