I had the same problem with these sleaze-bags. I am on the national do not call registry and I reported the violation. These guys are obviously trying to work around this list.
this person is calling my family members house asking for me and i have nevered live at this resident so how do they know my name an family member they have also been calling from 339-502-6440 when i called back ask "If you wish to be placed on our do not call list to hit 1, but my nubmer is unlisted and dont show up on any phone i have it blocked.
I just received this missed call. They did not leave a message. I blocked my number and called it back, but the party was not taking calls from a blocked number and asked me if I wanted to unblock my number. Ofcourse I did not and hung up. Did a google search and it is a Rhode Island area code, of where I don't know anyone in that State.