Just received a call from this same number myself. I didn't answer Thank God! I hope this isn't the first of many. I too have an account w/ BOA (Countrywide). Not late by any means.
problem is this, even if you are in the dnc registry you can still be called. there are loopholes if you have an established business relationship with wells fargo, wachovia, bank of america...ect ect. even then, if someone else used your number as a contact number, they will contact you as well. best bet is to answer your phone when these people call and tell them to remove you from their call list. what they will tell you is that they will do this, but it takes 30 days to completely get you out of the system and even then, you might be on other lists for other products available as well. if you have to, ask to speak with a supervisior as well.