Comment I first saw this back in Oct '17 for a Texas comp. (Score 1) 110
Using Chrome, I googled a Texas company and went to their website. I called the number listed there and got the "This call may be recorded" message before it started ringing through to the real company. When they answered, I hung up.
Then I dug the real number out of my phone and called them back. I spoke to the owner of this small company, and they had no idea that it was happening. Later she reported to me that their site builder had no idea what it could be.
So I did a little testing.
The only browser that changed the displayed phone number was Chrome. It was listed correctly on all the other browsers.
I then compared the html from Chrome and others, and there was an odd call replacing the static phone numbers from the original html.
Not sure where this was coming from, either from the hosting site or the site generator, or google, I just mentaly flagged Chrome as suspect/venerable, and stopped using it except in static VM's (needed hangouts for work). I never did find anyone else who had noticed this behavior, or see it reported other places before.
This is not exactly cogent to the OP, but I thought the audience would be the right sort of people to hear of it.