iana.org
The global coordination of the DNS Root, IP addressing, and other Internet protocol resources is performed as the Internet Assigned Numbers Authority (IANA) functions. Learn more.
Domain Names
Management of the DNS Root Zone (assignments of ccTLDs and gTLDs) along with other functions such as the .int and .arpa zones.
Number Resources
Coordination of the global IP and AS number spaces, such as allocations made to Regional Internet Registries.
Protocol Assignments
The central repository for protocol name and number registries used in many Internet protocols.
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Domain Names
Number Resources
Protocols
About Us
The IANA functions coordinate the Internet’s globally unique identifiers, and are provided by Public Technical Identifiers, an affiliate of ICANN.
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