How to find previous landlord phone number?

[Mary Jay]

Hi guys, I have a question for you: My prospective tenants gave me a phone number for their previous landlords. I’m not sure if those are real numbers for their landlords, maybe those are phone numbers for the tenants friends or relatives.

Is there a way to look up those phone numbers myself? Assessors website? Or which website should I use to look up peoples phone numbers? Because who knows maybe they gave me phone numbers for their relatives.

Thank u!