Just another scammer!  I called back with blocked ID and number.  Answering machine said they were out of office, busy with other customers, yadi, yadi yadi!  Never ID'd themselves!  You learned it here; just block them.

SB

Calls a lot.  I never answer, but I may do it next time just to should at whomever is on the line.  Call-back gets no answer.  609 is south-central New Jersey.  

Got a call from this number yesterday morning at 8:27 and again this morning at 8:23. Let the machine pick up and of course, no message! Really annoying, especially during a blizzard!!! Guess just another scam caller that I need to block...

I also received a call from this number yesterday, apparently at 1520 hours.  As I was outside, busy trying to shovel myself out of a major blizzard, I wasn't around to answer the call - and probably wouldn't have anyway seeing as I have a DNC listed landline and this was obviously either a scam artist or an illegal spammer.  The number is now blocked, so they can try to continue to call but my device will automatically disconnect them.

This are not scammer.  They are trying to check if you are home, and/or when you home.  And they determine patterns of someone being at home.  Based on that they will decide when to break-in.  This are organized robbers.