Who called from 5138780000

I did today. I think it's an Ohio phone number

Number blocked from receiving incoming calls & never identifies who it is or reason for calls.Never leaves message.This is beyond harassment it is stalking.

I'm on the DNC list, so likely some Robo-scam/pest. Did not answer, but with the last four digits being 0000, rather suspicious.

This person claiming to be with the Federal Government Grants Department told me I qualified for Grants when I said that no I didn't as I was disputing student loans she told me I was lying to her and hung up on me most definitely a scam do not answer.