Who called from 4696008105

Constant calls no one is there when answered.  When call back it says it is not a working number.

I answered the phone. Girl said she was with Reliant Air Duct, started to giggle, and then hang up! Unprofessional.

This phone # 469-600-8105, (party listed as unknown name), calls my home and when you keep saying hello, no one answers.  I called it back twice to find out who this party is and a female voice comes on and says this number is not working.  How can I block these kinds of calls which I get several of this type???

Calls my home number, no one says anything when we say "hello". Faint background noise can be heard.

This # calls and says is your mommy or daddy home ? , i tell them they are asleep and the male figure states that he can hear somebody whispering to me in the back ground . my little brothers are scared and have locked everything this man talked to me like i am 6 years old when i am way older ! creepy [***] dude !! I have a gun and i will use it ,