CASE NUMBER: 01-2840-CT-ZTA CASE DESCRIPTION: MCI WORLDCOM COMMUNICATIONS, INC. DOCUMENT SIGNED ON: 4/30/2024 DATE OF SERVICE: ________________________________________ 11/02/2001 In the matter of the application of MCI WorldCom Communications, Inc. to revise its tariff, PUCO No. 2, to grandfather Option YY (Basic Calling Plan A).