Stan, it's a debt collection agency. From what I've heard, they don't follow the rules about proper debt collection. They also erroneously call the wrong people.
I don't know why you are giving incorrect information. These calls can be blocked without any problem using any blocker featuer or device. I've been doing it without any problems using AT&T at one location and a device at another location.
Yep - this is definitely PORTFOLIO RECOVERY. I've come up with a great solution if you have AT&T Uverse. I've been using this solution for months and it works great. AT&T allows you to block calls - but only up to a precious 20 numbers. Instead of filling up your blocked call list with phone numbers from these guys, use the "Exclusive Call Forwarding" feature. This feature allows you to forward up to 20 numbers to one specific phone number. I added all the PORTFOLIO RECOVERY numbers I received to this feature instead using the limited slots of the call blocking feature. Then I have them all forwarded to 800-772-1413 which is the main PORTFOLIO RECOVERY phone number. That way, whenever they call, the call gets forwarded straight back to them. So far, I have accumulated 11 phone numbers for the last 3 or 4 months. And now I rarely get any additional numbers to add to the list. I have no idea of the legality of doing this. However, if the call is illegal to begin with, then forwarding it back to them seems to be the logical solution for the end-user. Sweet - and no call blocking slots used!! Here are the 11 PORTFOLIO RECOVERY numbers used to call me so far. Enjoy!!