Websites such as Fax-List.com and USBizData.com sell fax number databases. Fax-List.com claims that its constantly updated database contains over 20 million records from more than 190 countries. The company charges by the record with a $100 minimum purchase, as of 2015.
USBizData claims that its 2015 business fax number database has over 9 million verified fax numbers for U.S. businesses in all 50 states and the District of Columbia. The buyer receives an email containing a link that allows him to download the database, which is in CSV format. The $197 purchase price includes PC and Mac OS-compatible software for viewing, sorting, filtering and exporting the data. Business information includes phone numbers, addresses, ZIP codes and Standard Industrial Classification codes.