A lot of medical companies have been calling me since being on Medicare , I asked how they got my name and info they said from a medical directory that is put out every month ! I was furious that my medical info is being pasted and Posted for people to see !!! There should be a law about this !! That's invasion of privacy !!!
I got two calls from this number today already. Did not answer (don't need to). Just block the number. Don't answer it. Honestly, don't answer any number you don't know. If they're for real, they'll leave a message. Good info above about the 555 exchange.