It's the National Check Registry.  They are a collection company of payday loans and small loans.  
They have a horrible reputation of bullying people who owe into paying by using scare tactics such as, court dates, the sheriff is on his/her way to your house and they also identify themselves as an investigator and etc.  Just hang up on them.   They are listed on Rip-Off-Report and the BBB and Scam blogs and all.

We are NOT the National Check Registry, and are not a collection agency.  You should research your calls better because you are not even close.  Our company is NOT on any Rip-Off-Report either.  These notes are for callers with real concerns, you should be ashamed of yourself for putting out bad information.

The following is for informational purposes only.  He is the domain registry information for the website associated with this number (and site is less than a month old)

Registrant:
null
11775 Park Ave Ste 163
Orange Park, FL 32073
US

Domain name: NATIONALCHECKRESOLUTION.NET


Administrative Contact:
   resolution, check  checkresolution@outlook.com
   11775 Park Ave Ste 163
   Orange Park, FL 32073
   US
   +1.7707023530
Technical Contact:
   Admin, Domain  hostmaster@hs-support.homestead-inc.com
   305 Walnut Street
   Redwood City, CA 94063
   US
   +1.8004283170


Registration Service Provider:
   Homestead Technologies, hostmaster@hs-support.homestead-inc.com
   +1.8004283170
   http://www.homestead.com
   This company may be contacted for domain login/passwords,
   DNS/Nameserver changes, and general domain support questions.


Registrar of Record: TUCOWS, INC.
Record last updated on 25-Sep-2013.
Record expires on 25-Sep-2014.
Record created on 25-Sep-2013.

Registrar Domain Name Help Center:
   http://tucowsdomains.com

I received a call from these creedants, and their are rude! Using false titles to get someone to call them! Be truthful and maybe people that owe money in these troubled economical times will try to pay something! Just want to let the MGR that post on here that your customer service is pathethic!!

Piece of crap debt collector using illegal scare tactics to try and scare you into paying a debt that they cannot prove that you owe or may not even owe. Don’t verify any information or promise to make any payments. Good chance statute of limitation has already passed. Pay them no attention.