From:   http://www.allareacodes.com/reverse-phone-lookup/

No results found for (563) 558-0142!
(563) 558-XXXX is not valid. However, 563 is a valid area code. Check that you entered 558 correctly.

Most companies shown on this web page are ODD BALL wireless Companies.  The ROBO's seem to be using more of these low level wireless companies.