I got a missed call from the following # 207-123-4567 this must be a spam or scam type of call. I pulled up white pages and did a reverse phone search and was told no number exists.
I answered and no one was there. After a few seconds it disconnected. And after reading a few of the comments here, I am pretty certain that they are getting the numbers from people signing up at a web site that is related to "Free Stuff For Women" on FB. But regardless, it is annoying.