This number has called my home phone 5 times in 2 days. Never leaves a message. comes up as "wireless caller"  Looked up number here and it comes up as NC Charlotte area.  Been getting a lot of political message calls. Also the credit card scam, and smoke alarm scam calls. I have been registered with the DNC list since it began, and have re-registered recently. Tried calling back just to see who answered. Voice answering was foreign and unintelligible.