A GamerTag may contain up to 15 alpha-numeric (Aa-Zz 0-9) characters including spaces (but not consecutive).
It must begin with a letter and is unique regardless of spaces. e.g. "AceyBongos" or "Acey Bongos"
Below are some statistics based upon the 97,713 GamerTags in our database. Add your GamerTag, no registration required.