Who called from 4803768643

They would not answer when I said Hello twice and then the line went dead. All that displayed was the number. 480-376-8643 I have an AT&T cell phone and cannot (reject) block any more calls. I am at the limit. So it goes on and on a lot with these calls.

got thid number calling a few times

I live in Hawaii and am so tired of these middle of the night calls! Answered, they said nothing, then hung up.

No message

I keep get unwanted calls on my cell phone.   How do I get these stopped   I'm already on the DNC but to no avail.