<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEETS, CONDENSED CONSOLIDATED
STATEMENTS OF OPERATIONS AND CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-1999
<PERIOD-START>                             JAN-01-2000             JAN-01-1999
<PERIOD-END>                               JUN-30-2000             JUN-30-1999
<CASH>                                          16,844                   9,366
<SECURITIES>                                     1,756                   1,554
<RECEIVABLES>                                  202,463                 192,353
<ALLOWANCES>                                    41,294                  58,574
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                               226,321                 200,919
<PP&E>                                         375,298                 283,447
<DEPRECIATION>                                  70,984                  34,522
<TOTAL-ASSETS>                                 729,789                 672,826
<CURRENT-LIABILITIES>                          378,183                 324,516
<BONDS>                                        124,228                  44,096
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                            58                      58
<OTHER-SE>                                     258,511                 306,567
<TOTAL-LIABILITY-AND-EQUITY>                   729,789                 672,826
<SALES>                                              0                       0
<TOTAL-REVENUES>                               497,400                 500,478
<CGS>                                                0                       0
<TOTAL-COSTS>                                  521,751                 540,068
<OTHER-EXPENSES>                               (7,554)                   1,923
<LOSS-PROVISION>                                12,413                   9,999
<INTEREST-EXPENSE>                               7,742                   3,532
<INCOME-PRETAX>                               (24,274)                (43,370)
<INCOME-TAX>                                   (5,706)                 (7,886)
<INCOME-CONTINUING>                                  0                       0
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                  (18,568)                (35,484)
<EPS-BASIC>                                      (.32)                   (.64)
<EPS-DILUTED>                                    (.32)                   (.64)


</TABLE>