This never calls after 9 pm on a week night and wakes my kids, at 6 pm (dinner time) on a Saturday, sometimes responds to my "Hello", sometimes doesn't. This is nuts!
The individual at this number kept calling me every 2-4 days not long after I got my new laptop. Claimed he was from Microsoft and it was in regards to my computer. I contacted my retailer who warned me they get a lot of people calling about this, this person is a scammer. When I told this person to stop calling me, he said "not gonna happen" in a threatening tone. Verizon was totally useless in helping me block this caller. I reported it to my local police and at least they will try to track this person. down. I went out and got new Panasonic phones with call blocker built in and this number is now blocked.