Kevin,As much as I'd like to see these companies go down and get charged by the police, I think it's unfair to blame the cops on this one.  These scammers register these phone numbers under false names and addresses so tracking them down would be next to impossible.I suppose the only other thing one might do is what someone already suggested (and I don't remember exactly who right now) and contact the provider of the telephone number (which can be found on many reverse-lookup sites, even if there is no owner information) and say that you're getting harassing/scam calls from this number.  Might not hurt to file a police report before you do this so you can give the telephone company the report number for their file.  If they get enough complaints about any given number, they can cancel it.Although, I'm sure that these scammers have a dozen numbers set up, so losing one won't be a big deal.  The problem is just SO big, where does one start?

Contact your phone provider, many will block numbers for you.

I'm in B.C. It was an automated message saying "this is Lisa calling about your credit card. There is no problem, it's just to notify you that your credit card company has now qualified you for a lower interest rate as low as 6%. Press 9 to be connected to a representative.An east Indian sounding man answered.said he was in Alberta Canada.and sad he needed to verify who i was.Wanted type of card,exp. date.I stopped answering him.He hung up and called back.This time my call display showed unavailable name and unknown number.I didn't speak, the same mans voice said mister and used my last name.which I didn't give him.He said my name again, and then hung up. My phone than rang again with +1 888-556-5158 as the display.The same man said thank you using my last name again.And waited a moment before hanging up again.No calls since.

October 01 2011 same message Lisa - offering to lower credit cards rates.  New racket in town - again, and again and again.  Extremely annoying on Saturday afternoon especially when she repeats it 3-4 times.I do not even have a bloody credit card

dont bother ditching your landline...same crap diff. pile on cellular.

Do not want to be bothered with credit calls from telemarketers or any other telemarketers