196.46.152.0/21,BJ block - 20051024
41.223.248.0/21,BJ block - 20060222
41.222.192.0/21,BJ block - 20080523
41.191.84.0/21,BJ block - 20081118
41.138.88.0/21,BJ block - 20090814
41.74.0.0/19,BJ block - 20091026