Who is using this number?

I am getting calls non stop! I went to 'National DO NOT CALL Registry' to register my 3 phone numbers-we shall see if this works because I type 'STOP' everytime to these callers and still receive calls.

text message:
Shoppers: Make $100/ day undercover shoppers needed to judge retail&dining estabilshments.  No Experience required.  Call 877-450-6614