The most important institutions in the domain business: The big domain glossary part 4

What are the most important organizations in the domain business? What other organizations play a no role in domains? To answer these questions, we introduce you to the most important institutions around domains in part 4 of our blog series.


The largest organization in the domain business is the Internet Corporation for Assigned Names and Numbers or ICANN. The California-based non-profit organization manages the allocation of top-level domains and organizes and coordinates the domain name system.


Responsible for assigning the IP addresses is the Internet Assigned Numbers Authority (IANA), a division of ICANN. It acts as a type of accounting department and transmits local IP registrations to Regional Internet Registries (RIR). They are responsible for assigning the IP addresses for a specific part of the world.


A Regional Internet Registry (RIR) is an organization that is responsible for administering and allocating Internet resources in a particular part of the world. The scope of responsibility covers the administration of IP addresses and AS numbers. There are currently five active regional registries worldwide. Réseaux IP Européens Network Coordination Center (RIPE NCC), headquartered in Amsterdam, supervises the IP address range in Europe, the Middle East and Central Asia. American Registry for Internet Numbers (ARIN) is responsible for North America, Asia-Pacific Network Information Center (APNIC) for the Asia and Pacific region and the Latin America & Caribbean Network Information Center (LACNIC) for Latin America and the Caribbean. The African Network Information Center manages the IP allocation for Africa.


The US company, headquartered in Reston, Virginia, is one of the most important domain name registries in the world, as it manages the top-level domains .com and .net and operates two of the global root name servers.


Radix is ​​the largest domain registry for new domain broadcasts in Asia. The portfolio includes well-known generic nTLDs such as .website, .space, .site, .home, .online, as well as specialized nTLDs such as .tech, .insurance, .bank, .doctor and .music.


The US domain name registry is one of the largest and most important naming services in the world and includes big name clients such as Canon or Taco Bell. Neustar specializes mainly in the offer of so-called “.brand” Top Level Domains, with which companies can secure their own brand name as a domain ending.


Nominent is the UK’s largest registry and in the world’s top 10. Its portfolio includes, for example, the well-known domains .uk and its extensions, as well as the Welsh TLD .wales.


The Irish domain registry service successfully launched the world-famous domain ending .info in 2001 and is the European counterpart to Neustar with its “.brand” service.


The abbreviation stands for Deutsches Network Information Center and refers to the central domain name registry, which runs and manages the .de domain transmission and all related activities. The registered cooperative, based in Frankfurt am Main, ensures that every domain exists only once.

Public Interest Registry

Also known under the abbreviation PIR, this non-profit registry is solely responsible for the marketing of the domain .org.

If you would like to know more about the structure of domains, their technical background or the parties involved in a domain registration, please take a look at the other parts of the blog series:

Part 1 – Top Level Domain and Co

Part 2 – How the Domain Name System works

Part 3 – Registry, Registrar, Registrant

In the next part, we provide information on private domain registration, domain name transfer and change of ownership.

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