<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) THE SECURITIES EXCHANGE
OF 1934 FOR QUARTERLY PERIOD SEPTEMBER 30, 1997 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JUL-01-1997
<PERIOD-END>                               SEP-30-1997             SEP-30-1997
<CASH>                                          17,089                       0
<SECURITIES>                                         0                       0
<RECEIVABLES>                                    3,227                       0
<ALLOWANCES>                                       160                       0
<INVENTORY>                                        413                       0
<CURRENT-ASSETS>                                23,559                       0
<PP&E>                                          33,127                       0
<DEPRECIATION>                                  10,335                       0
<TOTAL-ASSETS>                                  48,106                       0
<CURRENT-LIABILITIES>                           28,242                       0
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                           112                       0
<OTHER-SE>                                      71,383                       0
<TOTAL-LIABILITY-AND-EQUITY>                    48,106                       0
<SALES>                                              0                       0
<TOTAL-REVENUES>                                20,603                  55,167
<CGS>                                                0                       0
<TOTAL-COSTS>                                   10,284                  29,145
<OTHER-EXPENSES>                                17,117                  48,298
<LOSS-PROVISION>                                   840                   2,814
<INTEREST-EXPENSE>                                 516                   1,467
<INCOME-PRETAX>                                (7,198)                (23,327)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                            (6,798)                (22,276)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     7,198                  23,327
<EPS-PRIMARY>                                   (0.72)                  (2.43)
<EPS-DILUTED>                                        0                       0
        

</TABLE>