Exhibit 4.01 THIRD SUPPLEMENTAL INDENTURE, dated as of February 20, 2001 (the "Third Supplemental Indenture"), to the Indenture, dated as of April 15, 1996 (the "Indenture") between ADELPHIA BUSINESS SOLUTIONS, INC. (formerly known as Hyperion...Third Supplemental Indenture • February 22nd, 2001 • Adelphia Business Solutions Inc • Telephone communications (no radiotelephone)
Contract Type FiledFebruary 22nd, 2001 Company Industry
TOThird Supplemental Indenture • March 31st, 1998 • Central Louisiana Electric Co Inc • Electric services
Contract Type FiledMarch 31st, 1998 Company Industry