I keep getting phone calls from random (507) phone numbers when I answer there is no-lne there. And when I call the number back IT IS DISCONNECTED. This has been happening 7-10 times a day from several different numbers. Someone in a previous message had mentioned something about a magazine company calling I had that also happen to me and I told them to put me on a do not call list and stop calling me. And now that I recall thats when this prank calling started to occur. I did tell Verizon, and they said they never heard of it, so I had to get a whole new phone number, which Im not very happy with. I guess beware of who you give your number to.