FIRST SUPPLEMENTAL INDENTUREIndenture • August 1st, 2003 • New YorkFIRST SUPPLEMENTAL INDENTURE, dated as of the 1st day of May, 1996 (herein called the "First Supplemental Indenture"), between GTE NORTH INCORPORATED, a corporation duly organized and existing under the laws of the State of Wisconsin (hereinafter referred to as the "Company"), and The First National Bank of Chicago, a banking association organized and existing under the laws of the United States (hereinafter referred to as the "Trustee") under the Indenture dated as of January 1, 1994, between the Company and the Trustee (hereinafter referred to as the "Original Indenture"). Capitalized terms used in this First Supplemental Indenture and not otherwise defined herein shall have the meanings set forth in the Original Indenture.