Sony Computer Entertainment today announced that the cumulative number of registered accounts on PlayStation Network worldwide has exceeded 20 million as of February 20, 2009.

The registered accounts on PlayStation Network reached five million in a year and two months, ten million in one year and eight months, and exceeded twenty million in two years and three months from the service launch on November 11, 2006.

PlayStation Network is a free to access network service for PS3 and PSP users, platforms which have sold more than 70 million units around the world combined. For more information, check out PlayStation NZ.