The National Do Not Call Registry Data Book for FY 2013 details the growth and usage of the registry, which has over 223 million active registrations as of September 30, 2013. The report includes statistics on complaints submitted by consumers regarding telemarketing violations, as well as figures on registrations by state and demographic data. It emphasizes the legal framework that requires telemarketers to respect consumer preferences and the processes in place for reporting and addressing violations.