Who called from 3018133244

I missed two calls from this number at 20:43 hours.  No voicemail, call back had a message, "this number cannot receive calls."

839PM CT
I don't remember how person identified themselves, they mentioned something about a promotion I may be eligible with a SPRINT phone. I told them I wasn't interested and they should not call me again.

this person called me.  i thought a nigerian scammer had gotten my phone #