<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED FINANCIAL STATEMENTS OF IMPSAT FIBER NETWORKS, INC. AND ITS
CONSOLIDATED SUBSIDIARIES AS OF AND FOR THE SIX MONTHS ENDED JUNE 30, 2000 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 109,595
<SECURITIES> 442,427
<RECEIVABLES> 56,242
<ALLOWANCES> 21,999
<INVENTORY> 0
<CURRENT-ASSETS> 594,519
<PP&E> 341,308
<DEPRECIATION> 273,335
<TOTAL-ASSETS> 1,310,894
<CURRENT-LIABILITIES> 195,025
<BONDS> 811,036
0
0
<COMMON> 914
<OTHER-SE> 0
<TOTAL-LIABILITY-AND-EQUITY> 1,310,894
<SALES> 0
<TOTAL-REVENUES> 123,517
<CGS> 0
<TOTAL-COSTS> 155,896
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 3,018
<INTEREST-EXPENSE> 50,483
<INCOME-PRETAX> (66,429)
<INCOME-TAX> 1,070
<INCOME-CONTINUING> 0
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 68,892
<EPS-BASIC> 0.80
<EPS-DILUTED> 0.80
</TABLE>