I've ported my number from TPG about two years ago, and just recently been having calls that asked me why I called their number. It's quizzical because I don't even know these people let alone call them.
I fear that my number has been spoofed and I'm looking to report it. However, I don't see any guidelines from this site, and TPG said that it's Boost's issue now, and the call center wasn't much help either. I really don't want my number used for any illegal activities.