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根据《注册服务机构认证协议》的要求,如果注册服务机构的名称发生变更,则注册服务机构必须在发生变更后 30 日内通知 ICANN。

如果 ICANN 认证注册服务机构的公司名称发生变更,注册服务机构应向 ICANN 提供关于其公司名称变更的官方文件,可以通过电子邮件发送至,也可以通过快递或传真寄送。


  • 企业设立章程修订版(在适用情况下,已在相应登记机关备案);
  • 政府机关出具的公司名称变更表或证明;
  • 企业登记机关出具的公司名称变更证明;
  • 显示企业实体的旧名称和新名称的任何其他官方文件。

如果注册服务机构希望为 ICANN 在 ICANN 网站上公布的法定名称添加别名(即"公司别称",缩写为"DBA"),则注册服务机构应提交以下材料:

  • 关于注册服务机构为了用别名经营业务而完成的必要法律手续的说明材料;
  • 以及创建或注册别名时使用的文件或表格(如适用)。

ICANN 在收到相关文件后,将在记录中更新注册服务机构的公司名称,并向注册管理机构宣布这一名称变更。


如果名称变更是由于控制权转让或变更而发生,请参阅迁移(分配)ICANN 委任收购 ICANN 认证的注册服务机构页面。

Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."