I keep getting calls from this number. It rings once then it hangs up. I don't even get a chance to answer the call. I have tried calling back and I get an operator telling me the mailbox I have reached isn't accepting message and to press zero for assistance. I press zero and get the same recording all over again. It's very frustrating and I want the calls to stop. I also just purchased a Hyundai so that may be what it is.