<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
INTERWAVE COMMUNICATIONS INTERNATIONAL, LTD. FORM 10Q FOR THE PERIOD ENDED
SEPTEMBER 30, 2000.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> JUN-30-2001
<PERIOD-START> JUL-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 42,437
<SECURITIES> 71,960
<RECEIVABLES> 25,999
<ALLOWANCES> 3,634
<INVENTORY> 8,868
<CURRENT-ASSETS> 151,295
<PP&E> 21,484
<DEPRECIATION> 13,003
<TOTAL-ASSETS> 178,574
<CURRENT-LIABILITIES> 14,568
<BONDS> 0
0
0
<COMMON> 48
<OTHER-SE> 162,217
<TOTAL-LIABILITY-AND-EQUITY> 178,574
<SALES> 10,460
<TOTAL-REVENUES> 10,460
<CGS> 5,924
<TOTAL-COSTS> 11,557
<OTHER-EXPENSES> 139
<LOSS-PROVISION> 3,050
<INTEREST-EXPENSE> 45
<INCOME-PRETAX> (10,255)
<INCOME-TAX> 9
<INCOME-CONTINUING> (10,264)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (10,264)
<EPS-BASIC> (.22)
<EPS-DILUTED> (.22)
</TABLE>