The International Basketball Federation on Saturday announced five venues for the FIBA World Championship in Japan in 2006. Sapporo, Sendai, Hamamatsu and Hiroshima will host the group games while Saitama, north of Tokyo, will host final round games at Saitama Super Arena. A total of 24 nations will take part in the tournament, which will take place between Aug. 19 and Sept. 3.