Caller ID "Bellevue, WA". They've called 4 or 5 times today, dead air and then they hang up. There is a great Panasonic phone at Costco that allows you to block any incoming number that you like. It still rings once but then shows up as blocked call. On the caller's end they can't get through (they may hear a message that they've been blocked, or something to the like; not sure).