ATTOM Data Solutions is a leading provider of nationwide property data, offering APIs, bulk data, and cloud real estate data licensing for over 155 million U.S. properties. Their comprehensive data includes property reports, real estate market reports,... ATTOM (a registered Texas data broker that also runs HomeDisclosure, Estated, Home Junction and GeoData sites) offers an online Data Request Form at https://ccpa.attomdata.com/ that it frames as being for California residents' opt-out/sale-opt-out requests; residents of other states are told to email privacy@attomdata.com or call 800-462-5125. Requests must be 'verifiable' and include your name, address and phone number, and ATTOM says it aims to respond within 45 days (up to 90 with an extension). Note their own reporting shows most deletion requests were denied as 'not required' under California law, so re-check your listings periodically.