Definition of Internet Network Information Center (InterNIC) in Network Encyclopedia.
What is InterNIC (Internet Network Information Center)?
Internet Network Information Center is a cooperative venture between Network Solutions, Inc. (NSI) and the U.S. government. It was the agency responsible for the registration of top-level domains.

Network Solutions was the agency responsible for coordinating registration of domain names within the Domain Name System (DNS). Internet Network Information Center (InterNIC) was responsible for registering and maintaining the top-level domains .com, .edu, .net, .gov, and .org. InterNIC itself is a registered service mark of the U.S. Department of Commerce.
InterNIC acts as both a registry that maintains a database of top-level domain information and a registrar that provides name registration services and other value-added services.
A new nonprofit agency called Internet Corporation for Assigned Names and Numbers (ICANN) is now open up the registration and management of the DNS to companies other than NSI.