Who called from 5629136481

The caller called us @ 18:57,09/09/2013. He probably used other area codes & numbers to call people before. I kept asking to talk. He remained silent for a while. I told him" We are on don't call list, please don't call us again" . After I hung up, I returned the call to that number, but it is not in services.

They would not answer.  Then hung up.  We are on Do Not Call List, but that hardly matters!