Who called from 8312186030

A Woman called several times this week. She said she was a social worker. Just called today again, I  asked her name and said her name was Alexandra. I asked her for her work phone number and her home so I could return her call another day, she hung up. Big time scamer...

Called me twice so I answer the second time she called. A girl with an accent asked me if I speak Spanish and I said no then she hung up.

This number calls 4+ times a day. Does not leave a message, Spanish speaking woman (not robot) asks if I speak Spanish then hangs up when I say no.  Call back is a busy signal so can't opt out of calling.  Would advise just to block number if possible.