I was called from this number and they said it was "customer service" for Discover card (which we do have). They claim to be sending a credit report, which sounded suspicious, and after a bit of talk they mentioned it costs X$ per month to have this identity theft protection. I said no thanks and hung up. I called the number back and complained about this unsolicited call. They said they did not know why the number was showing up as a 410 number. I plan on calling Discover customer service (a real 800 number) to complain. I suggest others do the same.