Calls daily starting last week. Google Voice does not seem to let them ring through to my phone, but they did not show up in Spam either. No voicemails left, just missed calls. Between each call I have received from them, I have also received an anonymous call that I assume is them as well, but those never ring through to my phone either of course. If the anonymous calls are theirs, I'm up to six calls from them so far.
I called to figure out who they are: Protocol Recovery Service. Perhaps they just purchased a new block of phone numbers based in Shreveport, because I've got three numbers so far that are not already reported here.
This is them:
http://protocol.us.com/contact.html
Here are the numbers I've got so far:
+13183004690
+13187035428
+13187035580