https://www.reddit.com/r/realtors/comments/12s2kak/how_are_investors_finding_the_peoples_phone/
I have access to public records through the MLS. It gives the owner names associated to the property, tax info, sold price etc. but it doesn't have people's ...

https://www.nomadicrealestate.com/how-to-find-phone-numbers-of-property-owners-complete-guide/
We'll talk about everything, from searching online public records databases to tapping into data from title companies and making use of skip-tracing services.

https://www.quora.com/How-do-you-find-out-your-home-phone-number
Put the Phone address which you have on the above Online Location Tracker to Track the Physical location of an email.