Who called from 4048358507

This person called my boss to verify the last digits of my ssn.

Called at 7:23 a.m. this morning.  Did not leave a message.

Some called my job for verification of my employer tooday. She gave the name Marsha from RNN. Not sure of who it is. Does anyone have an idea.

My boss received a call from this number and I called the person back as I am his sole employee.  They were asking to verify my SS#.  Weird.  They wanted to verify the last four digits of my number.  They said it wasn't me, as the numbers didn't match.  I hope this wasn't a scam, but I am clueless as to who this is.

I also received a call from this number with no reason for the call.  Were any of you also involved in the Anthem security breach?  all I can think is maybe it is related?