several calls from this number, seems to know when I am researching things pertaining to Voip or tethering on my laptop, calls come in on a cell phone I have never released to anyone including close family members. I don't answer so cannot tell them to stop calling, they leave no message, whitepages.com states the calls are from a Level 3 communications carrier voip phone line in Los Angeles, CA. I don't associate with anyone from CA. has to be a scam. associated with tethering.