[3] ICANN (2016-08-09 14:36:56 +09:00) https://www.icann.org/

[1] Internet Corporation for Assigned Names and Numbers
[2] IANA を運用している組織。

[4] RFC 7979 - Response to the IANA Stewardship Transition Coordination Group (ICG) Request for Proposals on the IANA Protocol Parameters Registries (2016-09-16 23:55:21 +09:00) https://tools.ietf.org/html/rfc7979

[5] ICAN とは無関係です。