looks more like freakin 9 digits with just mw3 lel.
This is what digits look like - took from DeanSteamid's thread
Empty - No games on to the account, most safe.
September 10th 2003 - 1 and 2 digits
September 11th 2003 - 3 and low 4 digits
September 12th 2003 - High 4 digits (Above 6xxx) and 5 digits.
September 13th 2003 to October 21st 2003 - 6 digits
October 21st 2004 to February 18th 2004 - Email Login 7 digits (22xxxxx and below)
February 18th 2004 to Late 2005 - Username 7 digits
Late 2005 to now - 8 & 9 digits