<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 3-MOS 12-MOS
<FISCAL-YEAR-END> APR-30-2000 APR-30-2000
<PERIOD-START> FEB-01-2000 APR-30-1999
<PERIOD-END> APR-30-2000 APR-30-2000
<CASH> 12,910 12,910
<SECURITIES> 21,457 21,457
<RECEIVABLES> 16,972 16,972
<ALLOWANCES> (1,739) (1,739)
<INVENTORY> 0 0
<CURRENT-ASSETS> 58,817 58,817
<PP&E> 58,261 58,261
<DEPRECIATION> (39,647) (39,647)
<TOTAL-ASSETS> 113,047 113,047
<CURRENT-LIABILITIES> 35,613 35,613
<BONDS> 0 0
0 0
0 0
<COMMON> 2,557 2,557
<OTHER-SE> 67,149 67,149
<TOTAL-LIABILITY-AND-EQUITY> 113,047 113,047
<SALES> 0 0
<TOTAL-REVENUES> 23,290 105,510
<CGS> 0 0
<TOTAL-COSTS> 15,219 60,926
<OTHER-EXPENSES> 11,131 47,025
<LOSS-PROVISION> 0 385
<INTEREST-EXPENSE> (344) (1,734)
<INCOME-PRETAX> (2,730) (1,092)
<INCOME-TAX> 0 150
<INCOME-CONTINUING> 0 0
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (2,730) (1,242)
<EPS-BASIC> (.12) (.06)
<EPS-DILUTED> (.12) (.06)
</TABLE>