1. .MOBI domain names can only contain alphabets a to z, numbers 1 to 9 and hyphens. However, domain names cannot begin or end with a hyphen and cannot have two hyphens in the third place. Spaces and special characters (such as !, $, &, and so on) are never permitted.

The minimum length permitted is 3 characters while the maximum length is 63 characters (excluding the ".mobi" extension)

2. Some names have been Reserved by the .MOBI Registry. สามารถดาวน์โหลดรายชื่อได้จากไฟล์แนบ

3. A web site associated with a .MOBI domain name should be WAP enabled, i.e., it can be accessed using a mobile phone.