Just want to know who number this is

No one left a message and I want to know the area code.

These guys also call from 201-215-1770.  They say they are some debt reduction service and that it is "imperative" that I call them.  They always say that my minimum balance payments on my credit card are going up (as if they know).  I think the company name has been different several times, but the message is always similar.  I've received about 20 calls from them in the past few months.  I have never answered but they keep calling.

i've gotten a call from this number every 20 min all damn day today.  if i dont know it i dont answer it.  no messages have been left. hmmmm. and yes like the other person said, its 201-215-1780 & 201-215-1770 & 201-215-1782.  all damn day. how freakin annoying.

Just keeps calling.  No message left.