Anyone work for sprint?

I know that. That’s why I’m asking on here if anyone can help me out. I have a friend who works for Verizon and he has done it for me in the past…

The reason I need it is we have a customer that has been a major asshole about a final sale return… And has been causing us problems. And prank calls is one of them. I just want to know if it’s him, which I’m pretty certain it is… I really don’t want to go into much more detail about this asshole…