Part 640. [Repealed]

Part 641. Annual Reports

Part 642. Retention by Telephone and Telegraph Corporations of Records at Principal Office

Part 643. Accounts, Records and Reports of General Business Corporations Providing Incidental Utility Service

Part 644. Service Records and Reports

Part 645. Radio-Telephone Utilities

Part 646. Applicability of Regulations to Radio-Telephone Utilities

Part 647. Resellers of Telephone Services

Part 648. Applicability of Regulations to Resellers of Telephone Services

Part 649. Regulations Applicable to Providers of Operator Services

Part 650. Regulations Applicable to Payphones

Part 651. Preservation of Records