<ARTICLE> 5
<LEGEND>
FINANCIAL DATA SCHEDULE FOR ADELPHIA BUSINESS SOLUTIONS, INC.(FORMERLY HYPERION
TELECOMMUNICATIONS, INC.) FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999
</LEGEND>
<CIK> 0001017648
<NAME> ADELPHIA BUSINESS SOLUTIONS, INC.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                         125,988
<SECURITIES>                                         0
<RECEIVABLES>                                   68,600
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                         740,870
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                               1,078,885
<CURRENT-LIABILITIES>                           49,580
<BONDS>                                        795,052
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                    252,161
<COMMON>                                           551
<OTHER-SE>                                    (62,915)
<TOTAL-LIABILITY-AND-EQUITY>                 1,078,885
<SALES>                                              0
<TOTAL-REVENUES>                                99,000
<CGS>                                                0
<TOTAL-COSTS>                                  174,944
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              56,383
<INCOME-PRETAX>                              (105,739)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          (105,739)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (136,251)
<EPS-BASIC>                                     (2.46)
<EPS-DILUTED>                                   (2.46)