He doesn't claim he gets it all from Google though.

>Ad click data is in aggregate. Google doesn’t provide marketers like me with your personal identifiers. This means that even with all of the data we get when you click, Google will never provide us with your name, email, or phone number.

>But there’s an easy way around this: through a call-tracking software that anyone buying Google Ads can use. It’s called Callrail and costs only $45 a month.

>By syncing Google Ads with Callrail, your name and address is tied to your click (and all your other data) when you conduct a certain action on a website that an ad directs to. (Clicking a phone number on the website, for example).

>Callrail provides marketers the data that Google would never dare to.