I do receive at least between 2 to 5 calls a day ! Same for my wife. We are in the Bay Area. It is becoming such a pain, that I have decided to work on an app (iOS first) to help filter/detect such calls... it will not necessarily catch every calls but it should help make a dent into it. There are many apps on iOS with similar features, but I have a different/novel approach for it. The most important piece is the backend system which I have almost complete now, so I have started as of yesterday the iOS code... I would love to get some beta testers before I release it. Contact info in my profile.