Who called from 3055039712

My family has 4 phone call form the same number 305 503 9712,this phone is not in service.

I got several calls from this number this week. They call once a day and don't leave vm. CID reads "Unknown"

never really pick up...but i wanna know who it is.

I also get calls from this number and it rings about 3 times then they hang up and don't leave a message...I would like to know where these calls are originating from.

same thing for me. I get a call every now and then, I hear a busy back ground but no answer or vm.