Who called from 6237380783

These people have other numbers that they regularly call from too. They all begin with 623-738 and if you don't block them they will call several times a day. They never leave a message and  I have never answered but I have read on other websites that they claim to be Verizon but are really a scam.

This number calls mon-fri every two hours. It's getting annoying.

Every hour or two. I won't answer,  but when my answering machine answers they hang up.