Who called from 3109075730

I have been getting calls 3-4 times per day for a few weeks now. They never leave a message on my voicemail. I refuse to answer these calls because I do not know the caller. I want to get rid of them, but I don't know how. It is very irritating. I am worried that, one day when I am using my earpiece [like while driving] I may accidentally take the call. I assume they are some type of telemarketer, or something worse.

Its Verizon my dear. They call to let you know that you need to pay your bill before they suspend your service.

It's ace cash express callin bout a past due loan

this one called me to - a couple of times...no clue

called all day no idea who this is?