Internet Assigned Numbers Authority

The Internet Assigned Numbers Authority (IANA) is responsible for the global coordination of the DNS Root, IP addressing, and other Internet protocol resources. Learn more about what we do »

Domain Names

IANA manages the DNS Root Zone (assignments of ccTLDs and gTLDs), as well as the .int registry, and the .arpa zone.

  • Root Zone Management
  • Database of Top Level Domains
  • .int Registry
  • .arpa Registry
  • IDN Practices Repository

Number Resources

IANA coordinates the global IP and AS number space, and allocates these to Regional Internet Registries.

  • IP Addresses & AS Numbers
  • Think we're attacking you?

Protocol Assignments

IANA is the central repository for protocol name and number registries, used in many Internet protocols.

  • Protocol Registries
  • Apply for an assignment
  • Time Zone Database
 

In April and May 2012 ICANN invited users of the root zone management; protocol parameters management; and Internet Number Resources management services to participate in a customer satisfaction survey. We have now analyzed the results and are happy to report that the response rate was very healthy 22% and the feedback was very positive. This report summarizes the survey methodology and the responses received.

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