Do not answer unknown calls and do not call them back. Consider getting a call blocking device (or app for your cell phone)-they're available online and start around $45. http://800notes.com/nb/search?q=call+blockers
I also got a cool at 8pm I called back it went to a voicemail. Is this a spam. I broke up with my boyfriend over this number thinking a side hoe went thru his phone and called me. I need to know