Who called from 9724326765

This number keeps calling my phone and I'm guessing it's telemarketers because it won't allow me to call back, it says "this number is unallocated"

This number continues to call.They never leave a message. I don't know them.

They call repeatedly and ask for Kristin. I tell them they have the wrong number. One caller said she would remove my number. They called again today. A man with an accent again asked for Kristin. I asked to speak to a supervisor. The "supervisor" asked for my name! I refused and told him to stop calling me. He said " I will call whoever I want to." SERIOUSLY? How do you stop this?

They have called me all day from differnt numbers dont know how they got my number but there has to be a way to stop these people.

Called and left "static" for a message on my machine.
Caller ID "Dallas Tx"