Dot US Reserved Name Rules

The availability of dot-US domain name is subject to the name reservation rules listed below. The following domain name-types are unavailable for public registration:

Reserved Name Rules:

1. All domains of any length beginning with 18XX or 1-8XX or 8XX
   where X is any number from 0 to 9 inclusive.
   
   
2. All domains beginning with NXX or 1NXX or 1-NXX followed by exactly seven numbers not including hyphens, where N is any number from 2 to 9 inclusive and X is any number from 0 to 9 inclusive.
   
   
3. All domains beginning with XXXXX where X is any number from 0 to 9 inclusive.

Example of reserved domains:

• 1800abc.us (rule #1)
• 812abc-def.us (rule #1)
• 1-805-999-9999.us (rule #1)
• 212-999-9999.us (rule #2)
• 19009998888.us (rule #2)
• 1-212---1-2-3-4-5-6-7--.us (rule #2)
• 20176.us (rule #3)
• 90210-Melrose.us (rule #3)

Example of non-reserved domains

• 18-00bar.us
• 1111.us
• yourname.us
• 1-212-5.us
• 1-212---1-2-3-4-5-6-7--abc.us
• 2222.us