Another hang up call

This number called, i missed the call, and decided to call back, but kept getting the voicemail. I text the number saying "Who is this" didn't get response back. Earlier today I received two calls saying unknown, one I answered and no one said anything. I pretty sure it's related. But in trying to figure out why this number is calling me and I will be going to the police if it happens again.

got the same type of call could hear lots of people in the background obviously a call center but no one said anythig i hung up and blocked the number

Same thing here. They call me but no one say anything or I could not hear anything. I call back but answering machine said the number is invalid. Good Idea J Todd I'm blocking the number too. I'm tired of this, is not the first it happens to me and I don't think I will stop soon, its always random numbers but the same result.

Received a call from this number on my cell phone this morning, and when I answered it was a recording about being trapped in student loans