If you are doing research on an Arkansas LLC, a great tool is the corporation search tool at the Arkansas Secretary of State. In addition to the ability to search for any LLC, you can also locate cooperatives, banks, and insurance companies registered with the state.
The search results will show you the corporation name, its status, filing number, registered agent address, and more. If you own the corporation, you can also pay the franchise tax right there.
If you need to form an LLC in Arkansas, use a service like incorporate.com to set up your company online and register it with the Arkansas Secretary of State.