This number called my Apple iPhone 5s today at 8:59am PDT. It showed the call coming from Birmingham, Alabama. I live in Oregon and do not know anyone who lives in Birmingham let alone Alabama. Since I did not recognize the number, I let the call go to voicemail; no voicemail was left. After going to this website and learning that this number is a telemarketer, I will definitely block this number. Anyone who gets a call from this number, I advise you to not answer and block the call if your phone has the capability.
I picked up, said hello, and heard the following pre-recorded message: "We're sorry, that is not a valid extension. Goodbye." The call came from Birmingham, Alabama. Don't get the angle if they only call up to hang up. Odd.