In 2000, after the beginning of the creation in the zone .ru of the distributed domain name registration system, established the registrar RU-NIC (RU-CENTER) and from 2001 ceased signing new domain registration contracts.

Until December 27, 2010 RIPN managed a number of public and geographical domains intended for registration of third-level subdomains.

Since December 27, the Institute has been transferring all administrated third-level domains to RU-CENTER support.

Domains are registered through the RU-CENTER web interface, but already on a fee basis.

Since 2015, these domains are served by a single Flexireg registry, the infrastructure of which was created by RIPN.