Abstract: Methods and systems for predicting sales based on historical telephone contact are provided. The telephone billing statements of a telemarketing company or other company include called telephone numbers, the time of the call, the length of the call and other information. Telephone numbers that are more frequently called and telephone numbers associated with longer call times may be more likely to accept solicitation and purchase products or services. The telephone billing statements do not include household or personal information, so are more likely to avoid violation of privacy and identity protection standards. The telephone billing statements also do not provide the original source of the telephone number, such as telephone numbers provided by a retail company for a campaign.