==============================================================================


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended March 31, 2000


                        Commission File Number 001-08106

                                     MasTec

                                  MASTEC, INC.
             (Exact name of registrant as specified in its charter)

          Florida                                         65-0829355
   (State or other jurisdiction of                      (I.R.S. Employer
    incorporation or organization)                     Identification No.)

    3155 N.W. 77th Avenue, Miami, FL                      33122-1205
 (Address of principal executive offices)                 (Zip Code)

      Registrant's telephone number, including area code: (305) 599-1800

Former  name,  former  address and former  fiscal  year,  if changed  since last
report: Not Applicable


     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X No .


     As of April 26, 2000,  MasTec,  Inc. had 31,054,087 shares of common stock,
$0.10 par value, outstanding.

================================================================================




                                  MasTec, Inc.

                                TABLE OF CONTENTS



Part I.      Financial Information

Item 1.      Financial Statements


     Unaudited Consolidated  Statements of Operations for the Three Months
     Ended March 31, 2000 and March 31, 1999.................................. 3

     Consolidated  Balance Sheets as of March 31, 2000  (Unaudited) and
     December 31, 1999.......................................................  4

     Unaudited Consolidated Statement of Changes in
     Shareholders' Equity for the Three Months
     Ended March 31, 2000....................................................  5

     Unaudited Consolidated Statements of Cash Flows
     for the Three Months Ended  March 31, 2000 and
     March 31, 1999  ........................................................  6

     Notes to Consolidated Financial Statements (Unaudited) .................  8

Item 2.      Management's Discussion and Analysis of Results of Operations
             and Financial Condition........................................  11

Item 3       Quantitative and Qualitative Disclosures About Market Risk.....  17

Part II.     Other Information

Item 6.      Exhibits and Reports on Form 8-K...............................  17

Signatures    ..............................................................  18


                                       2



                                  MASTEC, INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                    (In thousands, except per share amounts)
                                   (Unaudited)





                                                        Three Months Ended
                                                             March 31,

                                              ----------------------------------------
                                                      2000                  1999
                                              ------------------    ------------------

                                                              
      Revenue
         North American                       $      262,372        $      188,222
         International                                10,322                18,575
                                              ------------------    ------------------
                                                     272,694               206,797
      Costs of revenue                               208,929               162,097
      Depreciation                                    13,478                10,379
      Amortization                                     3,501                 2,268
      General and administrative expenses             23,112                19,391
      Interest expense                                 5,556                 6,231
      Interest income                                  1,213                 2,109
      Other income, net                                  380                   123
                                              ------------------    ------------------
      Income before provision for income              19,711                 8,663
         taxes and minority interest
      Provision for income taxes                       8,379                 3,670
      Minority interest                                  145                  (640)
                                              ------------------    ------------------

      Net income                              $       11,477        $        4,353
                                              ==================    ==================

      Weighted average common shares outstanding      29,203                27,328
      Basic earnings per share                $         0.39        $         0.16

      Weighted average common shares outstanding      30,568                27,755
      Diluted earnings per share              $         0.38        $         0.16


     The accompanying notes are an integral part of these consolidated financial
statements.


                                       3




                                  MASTEC, INC.
                           CONSOLIDATED BALANCE SHEETS
                                 (In thousands)




                                                                    March 31,            December 31,
                                                                      2000                   1999
                                                                 -------------         ---------------
                                                                  (Unaudited)
         Assets
Current assets:
                                                                                 
    Cash and cash equivalents                                    $    54,270           $     27,635
    Accounts receivable, unbilled revenue and retainage, net         263,729                251,576
    Inventories                                                       15,071                 14,264
    Assets held for sale                                              57,633                 53,639
    Other current assets                                              26,136                 34,634
                                                                 -------------         --------------
         Total current assets                                        416,839                381,748

Property and equipment, net                                          152,768                153,527
Investments in unconsolidated companies                               17,688                 18,006
Intangibles, net                                                     150,712                151,556
Other assets                                                          22,282                 23,572
                                                                 -------------         --------------

         Total assets                                            $   760,289           $    728,409
                                                                 =============         ==============

         Liabilities and Shareholders' Equity

Current liabilities:
    Current maturities of debt                                   $     5,985           $     12,200
    Accounts payable and accrued expenses                             67,611                 74,408
    Other current liabilities                                         50,401                 71,882
                                                                 -------------         --------------
         Total current liabilities                                   123,997                158,490
                                                                 -------------         --------------

Other liabilities                                                     37,698                 45,628
                                                                 -------------         --------------

Long-term debt                                                       199,257                267,458
                                                                 -------------         --------------

Commitments and contingencies

Shareholders' equity:
    Common stock                                                       3,102                  2,823
    Capital surplus                                                  299,124                168,799
    Retained earnings                                                112,680                101,203
    Foreign currency translation adjustments                         (15,569)               (15,992)
                                                                 -------------         --------------
         Total shareholders' equity                                  399,337                256,833
                                                                 -------------         --------------

         Total liabilities and shareholders' equity              $   760,289           $    728,409
                                                                 =============         ==============



     The accompanying notes are an integral part of these consolidated financial
statements.

                                       4




                                  MASTEC, INC.
            CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY
                                 (In thousands)
                                   (Unaudited)




                                    Common Stock                                Foreign
                             ---------------------------                        Currency
                                                        Capital    Retained    Translation
                                Shares     Amount       Surplus    Earnings    Adjustments      Total
- -----------------------------------------------------------------------------------------------------------------

                                                                           
Balance December 31, 1999        28,233   $  2,823    $ 168,799   $ 101,203    $ (15,992)    $  256,833
Net income                                                           11,477                      11,477
Foreign currency translation                                                         423            423
adjustments
Stock issued                      2,795        279      130,325                                 130,604

- -----------------------------------------------------------------------------------------------------------------

Balance March 31, 2000           31,028   $  3,102    $ 299,124   $ 112,680    $ (15,569)    $  399,337

=================================================================================================================

     The accompanying notes are an integral part of these consolidated financial
statements.


                                       5




                                  MASTEC, INC.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)
                                   (Unaudited)



                                                                            Three Months Ended
                                                                                 March 31,
                                                                   ----------------------------------
                                                                        2000                1999
                                                                   ---------------     --------------
Cash flows from operating activities:
                                                                                 
   Net income                                                      $     11,477        $     4,353
   Adjustments to reconcile net income to net cash used in
     operating activities:
     Depreciation and amortization                                       16,979             12,647
     Minority interest                                                     (145)               640
     Loss on sale of assets                                                   3                  -
     Changes in assets and liabilities (net of effect of acquisitions):
       Accounts receivables, unbilled revenue and retainage, net        (12,951)             7,801
       Inventories and other current assets                              (3,557)            (6,939)
       Other assets                                                         472             (3,106)
       Accounts payable and accrued expenses                             (8,798)            (4,903)
       Other current liabilities                                        (21,481)           (19,602)
       Other liabilities                                                 (2,590)            (5,387)
                                                                   --------------       -------------
Net cash used in operating activities                                   (20,591)           (14,496)
                                                                   --------------       -------------

Cash flows from investing activities:
   Capital expenditures                                                 (13,749)           (15,813)
   Cash paid for acquisitions (net of cash acquired) and                 (2,109)            (2,956)
     contingent consideration
   Repayment of notes receivable, net                                       946             18,667
   Investment in unconsolidated companies held for sale                  (3,083)            (2,685)
   Distribution to joint venture partner                                 (4,900)                 -
   Net proceeds from sale of assets                                      13,401             11,372
                                                                   --------------        ------------
Net cash (used in) provided by investing activities                      (9,494)             8,585
                                                                   --------------        ------------

Cash flows from financing activities:
   (Repayments) proceeds, net from revolving credit facilities          (74,416)            16,615
   (Repayments) of debt                                                       -             (3,102)
   Net proceeds from common stock issued                                130,604                114
                                                                   --------------        ------------
Net cash provided by financing activities                                56,188             13,627
                                                                   --------------        ------------

Net increase in cash and cash equivalents                                26,103              7,716
Effect of translation on cash                                               532             (2,020)
Cash and cash equivalents - beginning of period                          27,635             19,864
                                                                   --------------        ------------
Cash and cash equivalents - end of period                          $     54,270          $  25,560
                                                                   ==============        ============

     The accompanying notes are an integral part of these consolidated financial
statements.

                                       6





                                  MASTEC, INC.
                CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)
                                 (In thousands)
                                   (Unaudited)



Supplemental disclosure of non-cash investing and financing activities:

     During the three months ended March 31, 2000,  we paid  approximately  $2.1
million related to contingent  consideration from earlier acquisitions which was
recorded as additional goodwill.

     During the three months ended March 31, 1999,  we acquired  certain  assets
from  Directional  Advantage  Boring,  Inc.,  headquartered  in Minnesota,  in a
transaction  accounted for as a purchase.  The fair value of the assets acquired
amounted to $0.6 million, $0.3 million paid in cash with the remainder financed.
We also paid approximately $2.7 million related to contingent consideration from
earlier acquisitions which was recorded as additional goodwill.

     The accompanying notes are an integral part of these consolidated financial
statements.


                                       7




                                  MASTEC, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


Note 1 -  Basis for Presentation of Consolidated Financial Statements

     The accompanying  unaudited  consolidated  financial  statements of MasTec,
Inc.  have been  prepared  in  accordance  with  generally  accepted  accounting
principles for interim financial  information and with the instructions for Form
10-Q and Rule 10-01 of Regulation  S-X. They do not include all  information and
notes  required  by  generally  accepted  accounting   principles  for  complete
financial  statements  and should be read  together  with the audited  financial
statements and notes thereto  included in our annual report on Form 10-K for the
year ended December 31, 1999. The balance sheet data as of December 31, 1999 was
derived from audited  financial  statements but does not include all disclosures
required by generally accepted accounting principles.  Certain reclassifications
have been made to conform to the 2000  presentation.  The financial  information
furnished  reflects  all  adjustments,   consisting  only  of  normal  recurring
accruals,  which  are,  in  the  opinion  of  management,  necessary  for a fair
presentation of the financial position, results of operations and cash flows for
the  quarterly  periods  presented.  The results of  operations  for the periods
presented are not necessarily indicative of our future results of operations for
the entire year.

     Our comprehensive income for the three months ended March 31, 2000 and 1999
was  $11.9  million  and  $6.4   million,   respectively.   The   components  of
comprehensive   income  are  net  income  and   foreign   currency   translation
adjustments.


Note 2 - Debt

         Debt is comprised of the following (in thousands):

                                                                                      
                                                                             March 31,      December 31,
                                                                               2000             1999
                                                                         --------------     -------------
Revolving credit facility, at LIBOR plus 1.25% (6.98% at December 31,    $          -       $    64,000
    1999)
Other bank facilities at LIBOR plus 1.50% (7.63% at March 31, 2000              2,956             7,707
    and 7.32% at December 31, 1999)
Notes payable for equipment, at interest rates from 7.5% to 8.5% due            4,092             3,920
    in installments through the year 2002
Notes payable for acquisitions, at interest rates from 7.0% to 8.0%             2,326             4,254
    due  in installments through the year 2001
Senior Notes, 7.75% due February 2008                                         195,868           199,777
                                                                          -------------     -------------
Total debt                                                                    205,242           279,658
Less current maturities                                                        (5,985)          (12,200)
                                                                          -------------     -------------
Long-term debt                                                            $   199,257       $   267,458
                                                                          =============     =============


     We have a credit  facility that provides for  borrowings up to an aggregate
amount of $125.0  million,  which we reduced from $165.0  million  following our
public offering in March 2000.  Amounts  outstanding  under the revolving credit
facility  mature on June 9, 2001.  Upon written  request by us and at the bank's
sole  discretion,  the maturity  date of the credit  facility may be extended to
June 9, 2002. We are required to pay an unused facility fee ranging from .25% to
 .50% per annum on the facility,  depending upon certain financial covenants. The
credit facility is secured by a pledge of shares of certain of our subsidiaries.
Interest under the credit facility accrues at rates based, at our option, on the
agent  bank's  base  rate  plus a  margin  of up to .50%  depending  on  certain
financial  covenants or 1% above the  overnight  federal funds  effective  rate,
whichever is higher,  or its LIBOR Rate (as defined in the credit facility) plus
a margin of 1.00% to 2.25%, depending on certain financial covenants.

     We also  have  $200.0  million,  7.75%  senior  subordinated  notes  due in
February 2008 with interest due semi-annually.

                                       8


                                  MASTEC, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     The  credit  facility  and the senior  notes  contain  customary  events of
default and covenants which prohibit,  among other things, making investments in
excess of a specified amount,  incurring additional  indebtedness in excess of a
specified  amount,  paying  dividends  in excess of a specified  amount,  making
capital  expenditures in excess of a specified  amount,  creating certain liens,
prepaying  other  indebtedness,  including  the senior  notes,  and  engaging in
certain  mergers  or  combinations  without  the prior  written  consent  of the
lenders.  The  credit  facility  also  provides  that we must  maintain  certain
financial ratio coverages,  requiring, among other things, minimum ratios at the
end of each fiscal quarter of debt to earnings and earnings to interest expense.


Note 3 -  Operations by Segments and Geographic Areas

         The  following  table sets forth,  for the three months ended March 31,
2000 and 1999,  certain  information  about segment  results of  operations  and
segment assets (in thousands):



                          External       Internal     External
   Three Months        Communication  Communication    Energy    International
       2000               Services      Services      Services        (1)       Other (2)   Consolidated
- ---------------------------------------------------------------------------------------------------------
                                                                           
Revenue                  $  192,991   $  32,018      $  37,363    $  10,322     $      -     $  272,694
Depreciation                  9,621         467          2,941            -          449         13,478
Amortization                  1,021         249            202        2,029            -          3,501
Income before provision      24,591       2,466          2,107       (1,010)      (8,443)        19,711
   for income taxes and
   minority interest
Capital expenditures         12,706         155            555          333            -         13,749
Total assets                403,708      65,249         83,048      121,224       87,060        760,289


                          External       Internal     External
   Three Months        Communication  Communication    Energy    International
       1999               Services      Services      Services        (1)       Other (2)   Consolidated
- ---------------------------------------------------------------------------------------------------------
Revenue                  $  128,878   $  21,303      $  36,950    $  18,575     $  1,091     $  206,797
Depreciation                  6,992         355          2,644            -          388         10,379
Amortization                    942         260            191          875            -          2,268
Income before provision      13,062         593          3,056        1,070       (9,118)         8,663
   for income taxes and
   minority interest
Capital expenditures         10,978         165          4,051          542           77         15,813
Total assets                314,710      57,126         92,122      130,954      100,388        695,300



(1) For the three months ended March 31, 2000 and 1999,  revenue,  depreciation,
amortization  income before provision for income taxes and minority interest and
capital expenditures related to our Brazilian  operations.  As of March 31, 2000
and 1999,  total assets for Brazil consisted of $47.9 million and $66.3 million,
respectively and the remainder  relates to our interest in international  assets
not related to our core business.

(2) Consists of non-core construction and corporate  operations,  which includes
interest  expense net of interest  income of $4.3  million and $4.1  million for
2000 and 1999, respectively.

     There are no significant  transfers between  geographic areas and segments.
Total assets are those assets used in our operations in each segment.  Corporate
assets include domestic cash and cash  equivalents,  real estate assets held for
sale and notes receivable.


                                       9



                                  MASTEC, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


Note 4 - Commitments and Contingencies

     The Delaware  court in which two  shareholder  class action and  derivative
lawsuits were pending  approved a settlement  entered into in the fourth quarter
of 1999 that dismisses both lawsuits and releases all parties in the first suit.
We are not required to make any payments or to contribute to any amounts paid by
other parties.

     In November 1997, we filed a lawsuit against  Miami-Dade  County in Florida
state court  alleging  breach of contract  and seeking  damages  exceeding  $3.0
million in connection with the county's refusal to pay amounts due to us under a
multi-year  agreement to perform road  restoration work for the Miami-Dade Water
and Sewer  Department  ("MWSD"),  a department  of the county,  and the county's
wrongful termination of the agreement. The county has refused to pay amounts due
to Church & Tower  under the  agreement  until  alleged  overpayments  under the
agreement  have been  resolved,  and has  counterclaimed  against Church & Tower
seeking unspecified damages. MasTec is vigorously pursuing this lawsuit.

     We are a party to other  pending  legal  proceedings  arising in the normal
course of  business,  none of which we  believe  is  material  to our  financial
position or results of operations.

     We own minority  interests in Argentina  and  Ecuador.  Our  investment  in
Argentina is a minority  interest  with a carrying  value of $17.9 million as of
March 31, 2000 in Supercanal Holding,  S.A., a holding company of numerous cable
television operators in western Argentina ("Supercanal"). We also own a minority
interest  in and have made a $3.0  million  working  capital  loan to Sistemas e
Instalaciones de Telecomunicacion S.A. ("Sintel"), a Spanish  telecommunications
infrastructure services provider.

     Supercanal  has  defaulted on its third party debt and has filed a petition
under Argentine law seeking  protection from its creditors.  We do not guarantee
any  of  this  indebtedness.  In  January  2000,  the  majority  shareholder  of
Supercanal approved a capital increase that would have required us to contribute
approximately  $5.9 million to maintain our interest,  but the capital  increase
has been enjoined by an Argentine judge and we cannot determine  whether or when
the capital  increase  will be effected.  We have  determined  that the carrying
value of this asset held for sale has not been  impaired,  but we are monitoring
developments to determine whether a charge is warranted in the future.

     Our  current  and future  operations  and  investments  in certain  foreign
countries  are generally  subject to the risks of political,  economic or social
instability, including the possibility of expropriation,  confiscatory taxation,
hyper-inflation  or other adverse  regulatory or  legislative  developments,  or
limitations on the repatriation of investment income,  capital and other assets.
We cannot  predict  whether any of such  factors will occur in the future or the
extent  to which  such  factors  would  have a  material  adverse  effect on our
international operations.


                                       10





ITEM 2 -  MANAGEMENT'S  DISCUSSION  AND  ANALYSIS OF RESULTS OF  OPERATIONS  AND
          FINANCIAL CONDITION

     Except for historical information,  the matters discussed below are forward
looking   statements   made   pursuant  to  the  safe  harbor   provisions   for
forward-looking statements described in the Private Securities Litigation Reform
Act of 1995. These forward-looking statements are based on the Company's current
expectations and are subject to a number of risks, uncertainties and assumptions
relating  to the  Company's  operations,  financial  condition  and  results  of
operations.  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 the Company in this Quarterly  Report.  These and other risks
are detailed in documents  filed by the Company with the Securities and Exchange
Commission.  The Company  does not  undertake  any  obligation  to revise  these
forward-looking statements to reflect future events or circumstances.


General

     We design,  build,  install and maintain  internal  and  external  networks
supporting  the Internet,  Internet-related  applications,  e-commerce and other
communications  and energy  facilities  for  leading  telecommunications,  cable
television, energy and other Fortune 500 companies. Based on revenue, we are the
largest end-to-end  communications and energy infrastructure service provider in
North America.  We offer  comprehensive  network  infrastructure  solutions to a
diverse  group of  customers,  enabling  our  customers  to  connect  with their
customers.  Currently,  we operate from  approximately 200 locations  throughout
North America, which accounted for 96% of our revenue for the period ended March
31, 2000. Internationally we operate in Brazil through a 51% joint venture which
we consolidate net of a 49% minority interest after tax.

     For the three  months  ended  March 31,  2000,  approximately  12.9% of our
domestic   revenue  was  derived   from   services   performed   for   BellSouth
Telecommunications,   Inc.  Our  top  10  customers   combined   accounted   for
approximately 50% of our domestic revenue in the quarter.

     We report our operations in four segments:

         *     External Communication Services,
         *     External Energy Services,
         *     Internal Communication Services and
         *     International.

     External Communication Services represents our core business and is divided
into five service lines:

         *     inter-exchange networks,

         *     local exchange networks,

         *     broadband networks,

         *     wireless networks, and

         *     intelligent transportation networks.

     Internal Communication Services includes:

         *     switching and transmission services, and

         *     structured cabling services.



                                       11


Results of Operations

North America


     The following  tables state for the periods  indicated  our North  American
operations in dollar and percentage of revenue terms (in thousands):


                                                 Three Months Ended March 31,
                                      -------------------------------------------------
                                              2000                            1999
                                      ----------------------     ----------------------
                                                                     
Revenue                               $   262,372     100.0%     $  188,222      100.0%
Costs of revenue                          200,689      76.5         147,076       78.1
Depreciation                               13,478       5.1          10,379        5.5
Amortization                                1,472       0.6           1,393        0.7
General and administrative expenses        21,678       8.3          17,506        9.3



                        Three Months Ended March 31, 2000
                  Compared to Three Months Ended March 31, 1999


     The  following  table sets forth the revenue and change in revenue by North
American operating segments, in dollar and percentage terms (in thousands):


                                            Three Months Ended
                                                March 31,                         Change
                                       -----------------------------   -----------------------------
                                            2000            1999             $               %
                                       --------------  -------------   -------------   -------------
                                                                              
External Communication Services        $   192,991     $   128,878     $    64,113          49.7%
External Energy Services                    37,363          36,950             413           1.1
Internal Communication Services             32,018          21,303          10,715          50.3
Other                                            -           1,091          (1,091)       (100.0)
                                       --------------  -------------   -------------   -------------
                                       $   262,372     $   188,222     $    74,150          39.4%
                                       ==============  =============   =============



     Our North  American  revenue was $262.3  million for the three months ended
March  31,  2000,  compared  to  $188.2  million  for the same  period  in 1999,
representing  an  increase  of $74.1  million  or  39.4%.  The  fastest  growing
operating segment is our external  communication  services segment primarily due
to the increased  demand for bandwidth by end-users which has spurred  increased
network  construction  and  upgrades  by  our  customers.   The  growth  we  are
experiencing in our internal  communication services segment is primarily due to
growth  in  services  provided  at  central  office  facilities  resulting  from
regulatory  co-location  requirements  to open central office  facilities to new
competitors.   During  the  three  months  ended  March  31,  2000,  we  had  no
acquisitions  compared to one  acquisition  for the three months ended March 31,
1999 in our external communication services segment.  Internal growth in revenue
from our  North  American  operations,  as  adjusted  to  exclude  acquisitions,
approximated  35.8% for the three months ended March 31, 2000, and was primarily
driven by growth in external communication services.

     Our North American costs of revenue were $200.7 million or 76.5% of revenue
for the three months ended March 31, 2000,  compared to $147.1  million or 78.1%
of  revenue  for the same  period  in 1999.  In 2000,  margins  improved  due to
increased  productivity  in our  external and  internal  communication  services
groups offset by a slight decline in our external  energy  services group due to
poor weather conditions experienced in the month of January.

     Depreciation  expense  was $13.5  million or 5.1% of revenue  for the three
months  ended March 31, 2000,  compared to $10.4  million or 5.5% of revenue for
the same period in 1999.  The  increased  depreciation  expense of $3.1  million
resulted from our investment in our fleet to support revenue growth. The decline
as a  percentage  of revenue was due to an increase in revenue from our internal
communication segment which is less capital intensive.

                                       12



     General and  administrative  expenses were $21.7 million or 8.3% of revenue
for the three months ended March 31, 2000,  compared to $17.5 million or 9.3% of
revenue for the same period in 1999.  The decline in general and  administrative
expenses as a  percentage  of revenue for the three  months ended March 31, 2000
was due  primarily  to our  ability to  support  higher  revenue  with a reduced
administrative base.


Brazil

     The  following  tables set forth for the periods  indicated  our  Brazilian
operations in dollar and percentage terms (in thousands):



                                                    Three Months Ended March 31,
                                     -----------------------------------------------------------
                                                2000                            1999
                                     ----------------------------    ---------------------------
                                                                          
Revenue                              $  10,322         100.0%        $ 18,575         100.0%
Costs of revenue                         8,240          79.8           15,021          80.9
Amortization                             2,029          19.7              875           4.7
General and administrative expenses      1,434          13.9            1,885          10.1



                        Three Months Ended March 31, 2000
                  compared to Three Months Ended March 31, 1999


     Our Brazilian operations' functional currency is the Brazilian reals.


     Brazilian  revenue was $10.3  million for the three  months ended March 31,
2000,  compared to $18.6  million for the same  period in 1999,  representing  a
decrease of $8.3 million or 44.6%.  Brazilian revenue decreased primarily due to
the completion of prior existing contracts. Brazil had revenue of R$18.0 million
reals during the three months ended March 31, 2000,  compared to R$32.0  million
reals for the same period in 1999, representing a decrease of 43.8%. The average
currency exchange rate was 1.7434 reals per US dollar for the period ended March
31, 2000 compared to 1.7220 reals per US dollar for the same period in 1999.

     Amortization  expense  was $2.0  million or 19.7% of revenue  for the three
months ended March 31, 2000  compared to $0.9 million or 4.7% of revenue for the
same period in 1999.  Amortization  relates  primarily  to an  intangible  asset
resulting from one  acquisition  completed in early 1998 that is being amortized
over a five  year  period  relative  to  the  volume  of  work  under  specified
contracts.  During  the  quarter,  amortization  related  to this  contract  was
accelerated due to a change in volume.

     General and  administrative  expenses were $1.4 million or 13.9% of revenue
for the three months ended March 31, 2000,  compared to $1.9 million or 10.1% of
revenue for the same period in 1999.  General and  administrative  expenses were
R$2.5  million  reals or 13.9% of reals  revenue  during the three  months ended
March 31, 2000,  compared to R$3.2  million  reals or 10.0% of reals revenue for
the same period in 1999. The decline in general and  administrative  expenses in
both  dollar  and reals  terms was due to an  effort to reduce  overhead  as the
revenue base has declined.

                                       13


Consolidated Results

     The  following  table  sets  forth  for  the  periods   indicated   certain
consolidated  income statement data for North America and Brazil and the related
percentage of consolidated revenue.


                                                           Three Months Ended March 31,
                                           --------------------------------------------------
                                                       2000                        1999
                                           ------------------------   -----------------------
                                                                          
Interest expense                           $    5,556        2.0%     $  6,231        3.0%
Interest income                                 1,213        0.4         2,109        1.0
Other income, net                                 380        0.1           123        0.1
                                           ------------   ---------   ----------   ---------
Income before provision for income taxes       19,711        7.2         8,663        4.2
   and minority interest
Provision for income taxes                      8,379        3.1         3,670        1.8
Minority interest                                 145        0.1          (640)       (.3)
                                           ------------   ---------   ----------   ---------


     Interest expense  declined from $6.2 million to $5.6 million  primarily due
to the repayment of debt under our revolving  credit  facility with a portion of
the  proceeds of our offering of 2.5 million  shares which raised  approximately
$126.0 million in net proceeds. Interest income for the three months ended March
31, 1999  includes  interest  accrued and  collected  from a customer  financing
arrangement  which  terminated in September 1999.  Interest income for the three
months ended March 31, 2000 was mainly comprised of interest earned on temporary
investments as a result of our 2.5 million equity offering completed on March 3,
2000.

     Our   effective  tax  rate  for  North   American  and  Brazil   operations
approximates  42% and 33%  respectively,  for the three  months  ended March 31,
2000 and 1999.

Financial Condition, Liquidity and Capital Resources

     Our primary liquidity needs are for working capital,  capital expenditures,
acquisitions and investments, and debt service. Our primary sources of liquidity
are cash flows from  operations,  borrowings  under  revolving  lines of credit,
issuances of stock and the proceeds from the sale of assets held for sale.

     Net cash  used in  operating  activities  was $20.6  million  for the three
months  ended March 31, 2000,  compared to $14.5  million for the same period in
1999.  The  increase in net cash used in  operating  activities  in 2000 was due
primarily to increased working capital needs related to our growth.

     Our working  capital at March 31, 2000,  excluding  assets held for sale of
$57.6  million,  was $235.2  million  compared to $169.6 million at December 31,
1999. Our North American working capital as of March 31, 2000 was $212.8 million
(net of $7.5  million in assets held for sale),  comprised  primarily  of $244.3
million in accounts  receivable,  $31.5 million in inventories and other current
assets and $45.4 million in cash, net of $108.4 million in current  liabilities.
As of December 31, 1999, our North American  working  capital was $124.7 million
(net of $7.5  million in assets held for sale),  comprised  primarily  of $233.2
million in accounts  receivable,  $25.4 million in inventories and other current
assets and $7.2 million in cash, net of $141.1 million in current liabilities.

     We have a credit  facility that provides for  borrowings up to an aggregate
amount of $125.0  million,  which we reduced from $165.0  million  following our
public offering in March 2000.  Amounts  outstanding  under the revolving credit
facility  mature on June 9, 2001.  Upon written  request by us and at the bank's
sole  discretion,  the maturity  date of the credit  facility may be extended to
June 9, 2002. We are required to pay an unused facility fee ranging from .25% to
 .50% per annum on the facility,  depending upon certain financial covenants. The
credit facility is secured by a pledge of shares of certain of our subsidiaries.
Interest under the credit facility accrues at rates based, at our option, on the
agent  bank's  base  rate  plus a  margin  of up to .50%  depending  on  certain
financial  covenants or 1% above the  overnight  federal funds  effective  rate,
whichever is higher,  or its LIBOR Rate (as defined in the credit facility) plus
a margin of 1.00% to 2.25%, depending on certain financial covenants.

                                       14


     We also  have  $200.0  million,  7.75%  senior  subordinated  notes  due in
February 2008 with interest due semi-annually.

     The  credit  facility  and the senior  notes  contain  customary  events of
default and covenants which prohibit,  among other things, making investments in
excess of a specified amount,  incurring additional  indebtedness in excess of a
specified  amount,  paying  dividends  in excess of a specified  amount,  making
capital  expenditures in excess of a specified  amount,  creating certain liens,
prepaying  other  indebtedness,  including  the senior  notes,  and  engaging in
certain  mergers  or  combinations  without  the prior  written  consent  of the
lenders.  The  credit  facility  also  provides  that we must  maintain  certain
financial ratio coverages,  requiring, among other things, minimum ratios at the
end of each fiscal quarter of debt to earnings and earnings to interest expense.

     During 2000, we acquired and invested $13.7 million  primarily in our fleet
to support  revenue  growth.  We collected $13.4 million related to assets sold,
primarily  related to the sale of our Spanish  operations.  We  anticipate  that
available  cash,  cash  flows  from  operations  and from the sale of assets and
investments  and  borrowing  availability  under  the  Credit  Facility  will be
sufficient  to satisfy  our working  capital  requirements  for the  foreseeable
future.

     We own 100% of a PCS wireless  system in Paraguay in which we have invested
$33.7  million and which is held for sale.  We have entered into an agreement to
sell the system to an unaffiliated  telecommunications company. The agreement is
subject to certain  conditions  and there can be no assurance that the sale will
be consummated.

     We also own minority interests in Argentina and Ecuador.  Our investment in
Argentina is a minority  interest  with a carrying  value of $17.9 million as of
March 31, 2000 in Supercanal Holding,  S.A., a holding company of numerous cable
television operators in western Argentina ("Supercanal"). We also own a minority
interest  in and have made a $3.0  million  working  capital  loan to Sistemas e
Instalaciones de Telecomunicacion S.A. ("Sintel"), a Spanish  telecommunications
infrastructure services provider.

     Supercanal  has  defaulted on its third party debt and has filed a petition
under Argentine law seeking  protection from its creditors.  We do not guarantee
any  of  this  indebtedness.  In  January  2000,  the  majority  shareholder  of
Supercanal approved a capital increase that would have required us to contribute
approximately  $5.9 million to maintain our interest,  but the capital  increase
has been enjoined by an Argentine judge and we cannot determine  whether or when
the capital  increase  will be effected.  We have  determined  that the carrying
value of this asset held for sale has not been  impaired,  but we are monitoring
developments to determine whether a charge is warranted in the future.

     In Ecuador,  we hold an indirect minority interest with a carrying value of
$12.0   million   as  of   March   31,   2000  in   Consorcio   Ecuatoriano   de
Telecomunicaciones, S.A. ("Conecel"), one of the two cellular phone operators in
the Republic of Ecuador. In the first quarter of 2000,  Telefonos de Mexico S.A.
("Telmex")  acquired  60%  of  Conecel.  In  connection  with  the  acquisition,
Conecel's  defaulted  debt was  either  satisfied  or  brought  current  and all
defaults  cured.  We  exchanged  our direct  interest  in Conecel for a minority
interest  in a  Delaware  holding  company  for  Conecel  and  received  certain
shareholder rights, including a six-year put of our interest to Telmex for $12.0
million and registration rights.

     While we do not currently anticipate taking an additional impairment charge
on any of these assets,  there can be no assurance that future  transactions  or
events will not result in any further  impairment of these assets. If we were to
take a charge, however, it could adversely affect our earnings for the period in
which we incurred the charge.

Seasonality

     Our North America  operations have  historically  been seasonally weaker in
the first and fourth quarters of the year and have produced  stronger results in
the second and third  quarters.  This  seasonality  is  primarily  the result of
customer budgetary  constraints and preferences and the effect of winter weather
on external network  activities.  Some of our U.S.  customers,  particularly the
incumbent  local  exchange   carriers,   tend  to  complete   budgeted   capital
expenditures before the end of the year and defer additional  expenditures until
the following budget year. Revenue in reals from our Brazilian operations is not
expected to fluctuate seasonally.

                                       15


Impact of Inflation

     The primary inflationary factor affecting our operations is increased labor
costs.  We have  experienced  some  increases  in labor costs.  Competition  for
qualified personnel could increase labor costs for us further in the future. Our
international  operations  may,  at  times in the  future,  be  exposed  to high
inflation in certain  foreign  countries.  During the first  quarter of 2000, we
generated  approximately  4% of our total revenue from our Brazilian  operations
that are  susceptible to currency  devaluation.  We anticipate that revenue from
our  Brazilian  operations  will be less  significant  to our  operations in the
foreseeable  future  due to our  continued  focus  on  domestic  operations.  In
addition,  any  deterioration  in economic  conditions in Brazil and other Latin
American  countries could adversely impact our results of operations,  financial
position and cash flows.

                                       16




ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     See  Notes  2 and 4 of  Notes  to  Consolidated  Financial  Statements  for
disclosure about market risk.


PART II. OTHER INFORMATION


ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K.

             (a)  Exhibits

             Exhibit No.*                            Description

             27                                      Financial Data Schedule

- -------------------------

     *    Exhibit  filed with the  Securities  and Exchange  Commission.  MasTec
          agrees to provide this exhibit supplementally upon request.

                                       17



                                   SIGNATURES


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


                                 MASTEC, INC.




Date: May 1, 2000             /s/ CARMEN M. SABATER
                                 -----------------------------
                                 Carmen M. Sabater
                                 Senior Vice President - Chief Financial Officer
                                 (Principal Financial Officer)




Date:  May 1, 2000            /s/ ARLENE VARGAS
                                 -----------------------------
                                 Arlene Vargas
                                 Vice President and Controller
                                 (Principal Accounting Officer)

                                       18