Who called from 5807982779

Random calls from different numbers started after a collection agency named (Portfolio Recovery) called my number and I told them not to call my number again.  Numbers so far are from 580-798-2779, 405-416-5420, 405-778-3788, 405-416-5412, ( Portfolios number  is 620-860-0202).  I call them back and get messages like thank you for calling and then it will hang up.

So they are using a new number.

Here is an entire forum thread devoted to that company :
http://800notes.com/forum/ta-2a4cf0cd3a9e0dd/portfolio-recovery-associates
Portfolio Recovery Associates

Start with page 10 for the most recent posts (the last two months).