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Generic Top-Level Domain (gTLD) Registry Agreements

gTLD Registry Agreements establish the rights, duties, liabilities, and obligations ICANN requires of registry operators to run gTLDs.

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.ORG Registry Agreement | List of Reserved TLD Strings

.ORG Registry Agreement | List of Reserved TLD Strings

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.ORG Agreement Appendix 6
List of Reserved TLD Strings


(8 December 2006)

Registry Operator shall reserve names formed with the following labels from initial (i.e. other than renewal) registration within the TLD:

A. Labels Reserved at All Levels. The following names shall be reserved at the second level and at all other levels within the TLD at which Registry makes registrations:

ICANN-related names:

  • aso
  • gnso
  • icann
  • internic
  • ccnso

IANA-related names:

  • afrinic
  • apnic
  • arin
  • example
  • gtld-servers
  • iab
  • iana
  • iana-servers
  • iesg
  • ietf
  • irtf
  • istf
  • lacnic
  • latnic
  • rfc-editor
  • ripe
  • root-servers

B. Additional Second-Level Reservations. In addition, the following names shall be reserved at the second level:

  • All single-character labels.
  • All two-character labels shall be initially reserved.

C. Tagged Domain Names. All labels with hyphens in the third and fourth character positions (e.g., "bq--1k2n4h4b" or "xn--ndk061n")

D. Second-Level Reservations for Registry Operations. The following names are reserved for use in connection with the operation of the registry for the .org TLD:

  • nic
  • whois
  • www