I have just received another call from 650-548-4411 - this is the 2nd call today and they do call every single day often more than once and never leaving a message. Thank you all for taking the time to provide your input on this "phone number"
I think it is this scam:
http://www.herkimermedia.com/news/claim-your-google-places-and-other-scams
If you stay on a line a person is supposed to come on, but often they just hang up.