Consumers are concern about the public availability of cell phone records, which may include detailed information on calls to and from a particular number, such as the number dialed, the duration, and the location of the cell phone. Some of these records, along with records from other telephone and voice communications, may become available for sale over the Internet from “data brokers” who collect and sell the information. Attention is focused on how the data brokers obtain the information, and whether telecommunications companies are adequately protecting the so-called Customer Proprietary Network Information (CPNI) as required by law.