I guess the "Windows Technical Help" scam is showing its age, so the new scam is phony Fraternal Order of Police calls. One thing I've noticed, every single one of these scammers uses (602) 737-xxxx. So if you can block the entire prefix, go ahead. That should cut way down on your nuisance calls. From what I've read here at 800notes, these particular scammers are very persistent and obnoxious, so block them and and frustrate them as much as possible.