Maximum: 32 characters. Format: (country abbreviation).(city or state or province abbreviation).(username) Country abbreviation is 2 capital letters. State or Province abbreviation is 2 capital letters and used for USA and Canada. City abbreviation is 3 letters, the first one is capital and used for other countries than USA and Canada. For username, please do not use word(s) or aliases that is not part of your real full name. To save display space, please use dot (.) to separate words instead of _ or -. If you use 2 names, you can use - (minus) in between. Example 1: Amir Baraja in Jakarta, Indonesia --> Login Username= ID.Jkt.AmirB Example 2: David Crown in New York State,USA --> US.NY.DavidC Example 3: Barry Smith in Ontario Province, Canada --> CA.ON.BarryS Example for 2 names: ID.Dps.Ongko-Irma Do not use ~ Please see your country abbreviation below on the country list. Admin has all rights to change your login username, based on information you provide below, if it does not follow the regulation. Please follow the rules to avoid delay in your registration approval and to help you with your user name related inquiry in the future.