<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>                     <C>
<C>
<PERIOD-TYPE>                         YEAR              3-MOS              3-MOS              9-MOS               9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999        DEC-31-1999        DEC-31-2000        DEC-31-1999         DEC-31-2000
<PERIOD-START>                             JAN-01-1999        JUN-30-1999        JUN-30-2000        JAN-01-1999         JAN-01-2000
<PERIOD-END>                               DEC-31-1999        SEP-30-1999        SEP-30-2000        SEP-30-1999         SEP-30-2000

<CASH>                                          25,215                  0                  0                  0              71,964
<SECURITIES>                                    34,742                  0                  0                  0                 258
<RECEIVABLES>                                   42,434                  0                  0                  0              42,354
<ALLOWANCES>                                   (2,512)                  0                  0                  0             (3,560)
<INVENTORY>                                     13,810                  0                  0                  0              12,957
<CURRENT-ASSETS>                               141,415                  0                  0                  0             160,452
<PP&E>                                          77,455                  0                  0                  0             107,655
<DEPRECIATION>                                (15,292)                  0                  0                  0            (34,721)
<TOTAL-ASSETS>                                 295,213                  0                  0                  0             305,273
<CURRENT-LIABILITIES>                           66,584                  0                  0                  0              81,480
<BONDS>                                        205,474                  0                  0                  0             206,065
<PREFERRED-MANDATORY>                                0                  0                  0                  0             158,600
<PREFERRED>                                          0                  0                  0                  0                   0
<COMMON>                                       196,937                  0                  0                  0             197,327
<OTHER-SE>                                   (160,317)                  0                  0                  0           (317,887)
<TOTAL-LIABILITY-AND-EQUITY>                   295,213                  0                  0                  0             305,273
<SALES>                                              0             24,896             31,623             62,611              97,667
<TOTAL-REVENUES>                                     0             42,422             53,472            112,183             159,583
<CGS>                                                0             18,976             28,474             47,076              82,935
<TOTAL-COSTS>                                        0             32,092             48,253             85,830             144,358
<OTHER-EXPENSES>                                     0              4,872             14,917             11,842              64,331
<LOSS-PROVISION>                                     0                585              2,259              1,339               5,415
<INTEREST-EXPENSE>                                   0              6,881              7,122             18,967              22,019
<INCOME-PRETAX>                                      0           (26,358)           (43,936)           (69,447)           (166,855)
<INCOME-TAX>                                         0                  0                  0                  0                   0
<INCOME-CONTINUING>                                  0           (26,358)           (43,936)           (69,477)           (166,855)
<DISCONTINUED>                                       0                  0                  0                  0                   0
<EXTRAORDINARY>                                      0                  0                  0                  0                   0
<CHANGES>                                            0                  0                  0                  0                   0
<NET-INCOME>                                         0           (26,358)           (43,936)           (69,477)           (166,855)
<EPS-BASIC>                                          0             (1.06)             (1.63)             (3.92)              (5.97)
<EPS-DILUTED>                                        0             (1.06)             (1.63)             (3.92)              (5.97)


</TABLE>