Received a call from (caller id says) 214-396-5393.  A Bob Keen left a message stating that he was from AAPA Firm and he was calling about an outstanding debt.  That I could call him at 855-378-8855 ext. 401 to resolve this issue.  Stated that if I didn't call him back then he could only assume I was not going to resolve this issue and he would pursue all legal action available.  Not outright threats but I'm not sure what's going to happen next.  I just finished with a payday loan company to get my loans paid off.  I'm tired of these phone calls, what else do they want, blood????

Sounds like a total scam.  Don't call back and don't give any information out over the phone and don't let them threaten you with arrest for what amounts to a civil debt.    

See:  http://www.consumer.ftc.gov/articles/0258-fake-debt-collectors  Report all abusive behaviors.

Appears to be the same person that called me from 214-396-5177

Left a message saying it was urgent that I call back.  I haven't called back but according to the comments on the other number, it's something about a payday loan.

I've never had a payday loan so no idea why they'd be calling me.