They are always different numbers. As some stated, being on the do not call list doesn't work, they keep calling, reporting them to the telephone co. doesn't work. I run a small business and I am the one has to run to the phone taking my time. Really agveritating especially is I am welding or up on a ladder or painting. I run a service type business and if I don't get to the phone and answer it right away, most customers will not leave a message for me to call back. With the cell phones now if a area code pops up different than ours it still can be a real customer in my area. I have often wondered what would happen when they call me to say "sure" sign me up and then give them a bogus credit card #. That's what they are after is your credit card #. You will probably never get their product. Every day my wife tries to lay down and take a little nap after lunch at home and it never fails some one will call and say "we have your free life alert pendant" Can we have your credit card to cover postage. As far as I am concerned this is no different that theft. I have so many minutes in a day and if some one calls me, with bogus calls, they are stealing from me. For awhile I was having investors calling me wanting me to invest money with them. I would say sure mail me some information about your co. and investment. They would and I would throw it in the trash. (I am sure it cost them a couple of bucks to have it printed and Fed Exed to me) then they would call back in a few days and I would say I never got it and they would mail it again. Then I would say "the dog ate it". send it again. Finally they got the message and I don't get very many calls on that any more.