Internet Network Operators’ Groups (NOGs) are country-based, or regional groups that exist to provide forums for Internet network operators to discuss matters of mutual interest, usually through a combination of mailing lists and annual conferences. Although these groups have no formal power, their members are typically influential members of the Internet Service Provider (ISP), Internet Exchange Point (IXP), Regional Internet Registry (RIR), operational security community, Internet Protocol version 6 (IPv6) operations, Domain Name System (DNS) and root zone operations, and other network operations communities, and discussions within these groups are often influential in the overall process of ensuring the Internet remains operational, robust, secure, and stable. They also allow networking professionals and other members of the research and technical communities to update each other on their work, share news and updates, exchange best practices, discuss new technologies or protocols, teach and learn from each other, network with other members of the community, and discuss current network- and Internet-related issues and challenges.
https://en.wikipedia.org/wiki/Internet_Network_Operators%27_Groups.