I have no credit cards at all. I have no consumer debt. (My student loans will not begin repayment until May of 2015.) Even so, I have a message from this telephone number on my voice-mail. Returning calls from entities of this ilk only encourages them to continue calling in hope that they have, indeed, reached the target. My cell-phone, however, does have IOBit mobil that has a call-blocking feature.
This number is a land line, not to mention a debt collecter is not allowed to call after a certain time at night, nor are they allowed to call multiple times.