Exhibit 4.02 FIRST SUPPLEMENTAL INDENTURE, dated as of February 20, 2001 (the "First Supplemental Indenture"), to the Indenture, dated as of August 27, 1997 (the "Indenture") between ADELPHIA BUSINESS SOLUTIONS, INC. (formerly known as Hyperion...First Supplemental Indenture • February 22nd, 2001 • Adelphia Business Solutions Inc • Telephone communications (no radiotelephone)
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)
