These pests called me once today on 4/30/14, but they have been using other IDS and numbers. Wish they would stop. Gotten calls also from Tucson and Yuma AZ and from Fullerton CA. They call several times in one hour and never leave a message. I don't answer them. I've been forced to unplug my phone because of these calls. Numbers they used in addition to the 480 number: 928-257-3549, 520-332-6130, 714-278-4812, 623-552-5039.
I got two calls from this number today, a few minutes apart. No message was left either time. However, a few days ago (4/28/14), I got called 5 times in a row within 20 minutes by 973-821-3073. A message was never left, and when we answered on the 6th call, nobody said anything. When we called back, a music tone played, then disconnected the call. Called back again, and the same thing happened. I'm not sure if the two phone numbers are connected, but I suspect they are.
I thought it was illegal for them to call you more than once within a certain time frame, these people have called me 5 times within a 30 minute period and they leave no message. You would think it was urgent given the number of times they call you. If they really want to talk to you they will leave a message so that is how you know it is scammers!