<ARTICLE> 5
<LEGEND>
          THIS SCHEDULE  CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM
     THE  CONSOLIDATED  FINANCIAL  STATEMENTS  OF ICG  COMMUNICATIONS,  INC. AND
     SUBSIDIARIES  FOR THE QUARTER  ENDED MARCH 31, 1998 AND IS QUALIFIED IN ITS
     ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>               DEC-31-1998
<PERIOD-START>                  JAN-01-1998
<PERIOD-END>                    MAR-31-1998
<CASH>                              494,215
<SECURITIES>                         29,000
<RECEIVABLES>                        95,705
<ALLOWANCES>                          9,484
<INVENTORY>                           4,501
<CURRENT-ASSETS>                    625,824
<PP&E>                              904,524
<DEPRECIATION>                      175,407
<TOTAL-ASSETS>                    1,532,448
<CURRENT-LIABILITIES>               163,937
<BONDS>                           1,286,501
<PREFERRED-MANDATORY>               431,074
<PREFERRED>                            0<F1>
<COMMON>                                755
<OTHER-SE>                         (349,819)
<TOTAL-LIABILITY-AND-EQUITY>      1,532,448
<SALES>                                0<F1>
<TOTAL-REVENUES>                    125,656
<CGS>                                  0<F1>
<TOTAL-COSTS>                        93,519
<OTHER-EXPENSES>                     92,136
<LOSS-PROVISION>                      3,067
<INTEREST-EXPENSE>                   34,884
<INCOME-PRETAX>                     (88,550)
<INCOME-TAX>                             13
<INCOME-CONTINUING>                (101,755)
<DISCONTINUED>                         0<F1>
<EXTRAORDINARY>                        0<F1>
<CHANGES>                              0<F1>
<NET-INCOME>                       (101,755)
<EPS-PRIMARY>                         (2.30)
<EPS-DILUTED>                          0<F1>
<FN>
<F1>THIS VALUE IS NOT APPLICABLE.
</FN>