you can help by calling the FCC as described in the post to which I am replying. It takes some time to navigate through the appropriate menu for unwanted telephone calls and faxes, but once you get to that menu option, select the number "0" to report the complaint. I had to listen to the FCC recording several times to understand that part.
Also, it seems the Federal Trade Commission (FTC) is more likely to process your complaint as their jurisdiction is more complete in this case. In order to report the complaint to the FTC, call
I got a call from this number this morning, I almost answered since I have relatives in 406 Montana but the number didn't seem familar so didn't answer. I remember this number calling previously the more I got thinking about it. It really sucks especially when your busy, at work, driving, etc.
Just an FYI, this scam has been going around for years. The numbers change all the time, the same english accented woman wants to lower credit card interest rates. I always tell them that if they are with my credit card company, they should know the numbers already and to just go ahead and lower the rates. The calls are fishing for information to steal from you. Thats it! Annoying but if you dont give them information, harmless. Tell them nothing and most likely they will tell you to F off at some point.