Calls continue at all hours from this number.  Caller ID now shows the name "Rivera, Carlos" since we have blocked calls without a name on our caller ID (it previously showed no name).  Our phone has a feature that allows us to block the number, so the caller gets a busy signal after one ring.  You'd think they'd get tired of trying, but they never do.  This is the third or fourth year of this nonsense.  The calls seem to get worse anytime I donate money to Republican or conservative causes.  It may very well just be a coincidence, or it may be some stupid little left-wing game being played by Democrat organizations in my state (donations are a matter of public record).  I'm not generally paranoid and am definitely not a conspiracy theorist, but we truly have no known enemies.  We're a very nice family that is well-liked in our community.  It's just a mystery to us why anyone would target us this way.  At this point, we have technologically minimized the nuisance factor to almost nothing, so they really gain nothing with their continued harrassment.  It must be more work than it's worth.