Who called from 3302387000

Did not answer nor did they leave a message.  That said whitepages.com reports the number has a high rick of SPAM or fraud.

Keeps calling robo call blocked

Research center won't stop calling. Sometimes someone answers sometimes they don't. Once they did I told them to stop calling my house. She said ok and hung up. I have gotten 17 calls since then and it was 3 days ago I told them to stop. I am on a do not call list but apparently that means nothing.

At least tree calls per day.

Calls several times a day. Have not answered.