The same thing happens to me: though I may have an idea why it happens to all of us......We need to find the common denominator to all of our calls....I , for example, have a few different cell phones, one for work, one for family and friends, and one for "play"...(commonly called a "burner" phone....) I use ONE particular cell number whenever I "have" to provide a cell number on a web page....and sure enough, every time I provide the number, the calls start just 2 days later! There are several HUNDRED different numbers that do what this number also does: rings, and when u answer, there is no one there.....they also dont leave messages......all u can do is assign a "DNA" (Do Not Answer) option, or continue to be annoyed by them...!
Everyday for two weeks - at least 3 times a day - no answer - call number back - get automated "customer service" - can never talk to "service rep" - press 2 to put number on do not call list - same number calls 10 mins later - this is [***] - I'm waiting to hear about a job and the damn phone is ringing all the time