<TABLE> <S> <C>

<ARTICLE>                                                                    5
<LEGEND>
This schedule contains summary financial  information extracted from the balance
sheet of MCI  Communications  Corporation and  Subsidiaries at June 30, 1998 and
the income  statement for the six months ended June 30, 1998 and is qualified in
its entirety by reference to such financial statements.
</LEGEND>
<CIK>                                                                0000064079
<NAME>                                           MCI Communications Corporation
<MULTIPLIER>                                                          1,000,000
       
<S>                                                                 <C>
<PERIOD-TYPE>                                                       6-MOS
<FISCAL-YEAR-END>                                                   DEC-31-1998
<PERIOD-START>                                                      JAN-01-1998
<PERIOD-END>                                                        JUN-30-1998
<CASH>                                                              1,126
<SECURITIES>                                                            0
<RECEIVABLES>                                                       3,325
<ALLOWANCES>                                                          426
<INVENTORY>                                                             0
<CURRENT-ASSETS>                                                    5,434
<PP&E>                                                             22,444
<DEPRECIATION>                                                      8,304
<TOTAL-ASSETS>                                                     25,986
<CURRENT-LIABILITIES>                                               6,943
<BONDS>                                                             3,938
<PREFERRED-MANDATORY>                                                 750
<PREFERRED>                                                             0
<COMMON>                                                               74
<OTHER-SE>                                                         12,114
<TOTAL-LIABILITY-AND-EQUITY>                                       25,986
<SALES>                                                                 0
<TOTAL-REVENUES>                                                   10,658
<CGS>                                                                   0
<TOTAL-COSTS>                                                      10,091
<OTHER-EXPENSES>                                                        0
<LOSS-PROVISION>                                                        0
<INTEREST-EXPENSE>                                                    106
<INCOME-PRETAX>                                                       507
<INCOME-TAX>                                                          181
<INCOME-CONTINUING>                                                   296
<DISCONTINUED>                                                          0
<EXTRAORDINARY>                                                         0
<CHANGES>                                                               0
<NET-INCOME>                                                          296
<EPS-PRIMARY>                                                        0.41
<EPS-DILUTED>                                                        0.40
        

</TABLE>