Have had SEVERAL calls from 571-319-5860, at different times of the day (one call was after 8 PM at night), for a few days now-- EXTREMELY ANNOYING! Our answering machine has picked them up, but only once was a message left: a male voice stating that he is taking a survey, and then asking if we are registered to vote. Obviously when he didn't get a response, the call cut off. SO glad that we didn't answer, since that type of information is private; and if I would have answered, the guy would have gotten an earful, in salty language!