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Internet Assigned Numbers Authority (IANA) -'s logo

Loads of good reading at

"The global coordination of the DNS Root, IP addressing, and other Internet protocol resources is performed as the Internet Assigned Numbers Authority (IANA) functions."

  • Domain Names

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

    • IP Addresses & AS Numbers
    • Network abuse information
  • Protocol Assignments

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

Root Zone Database