Just received call from this number, I called number back got a recording that it is a research company called SSI. I have received other calls from different numbers caller ID has shown SSI, at first glance thought maybe social security! These places are sure sneaky and deceiving I just signed up for SS so was my first thought when see the CID. They say they are legit and can call even if you are on DNC list because they are not selling anything just want you to answer questions.