47 C.F.R. § 64.4006 Limitations on use of customer account information.
Title 47 - Telecommunication
A carrier that receives customer account information under this section shall use such information to ensure timely and accurate billing of a customer's account and to ensure timely and accurate execution of a customer's preferred interexchange carrier instructions. Such information shall not be used for marketing purposes without the express consent of the customer.
Title 47: Telecommunication
PART 64—MISCELLANEOUS RULES RELATING TO COMMON CARRIERS
Subpart CC—Customer Account Record Exchange Requirements
§ 64.4006 Limitations on use of customer account information.